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1
Kurilkin, Dmitry, Roman Kulesh, Pavel Dvorkin, Anna Romanova, and Andrey Sadovskiy. "Determination of Energy Expenditures on Hydrostatic Drive of Cooling Device Motor-Fans of Diesel Locomotive TEP70BS According to Microprocessor Control System Data." Bulletin of scientific research results 2022, no. 3 (September 22, 2022): 89–102. http://dx.doi.org/10.20295/2223-9987-2022-3-89-102.
Повний текст джерелаАнотація:
Purpose: Development, testing methodology for the definition of energy expenditure on hydrostatic drive of cooling device motor fans of diesel locomotive TEP70BS. Energy expenditures on drive of cooling devices motor-fans constitute significant part in the total volume of energy expenditures for auxiliary needs. When determining diesel cooling device power, picked for motor-fan drive, it is necessary to take into account the influence of motor-fan drive technical condition and diesel cooling system general technical condition. The given task can be solved by the way of statistical analysis of the information, being registered by TEP70BS locomotive on-board diagnostics subsystem when performing corresponding analytical calculations. At the same, it is necessary to account for the peculiarities of functioning of motor-fan hydrostatic drive under various loading modes. Methods: Statistical processing and analysis of measurement results. Analytical calculation of a hydrostatic system on the basis of processing of measurement results. Reduction of hydrostatic drive parameters to non-nominal modes. Results: Methodology of energy expenditure analytical calculation on the basis of statistical analysis of data on motor fan operating modes is proposed. Probable values of power, spent on motor-fan drive for various controller positions, are determined. It is shown that for controller nominal position, average power consumption for being considered sample of five locomotives will constitute 23.2 kW per two fan motors. Practical importance: The use of the presented methodology allows to raise significantly the determination accuracy for power, being picked for auxiliary needs and, as a result, to increase calculation accuracy for traction characteristics and fuel consumption characteristics of TEP70BS diesel locomotive.
2
Kurilkin, Dmitry, Vladimir Grachev, and Valeriy Tanaev. "Defining Resistance in Traction Motor Circuit According to Microprocessor Control System Data." Bulletin of scientific research results 2022, no. 4 (December 24, 2022): 74–89. http://dx.doi.org/10.20295/2223-9987-2022-4-74-89.
Повний текст джерелаАнотація:
Purpose: To develop methodology for determining the actual resistance of traction electric drive (TED) circuits of a locomotive with electric power transmission and with refined calculation of voltage losses of a collector-brush apparatus according to microprocessor control system data. These data are necessary for calculating actual traction characteristics of a locomotive as well as its braking characteristics in electric braking modes. Methods: Methods of electric machine theory, statistical processing and regression analysis of experimental data were used. Results: Based on the statistical analysis of registration data of on-board diagnostics subsystem of 20 sections of 2TE116U and TEP70BS diesel locomotives, methods for determining resistance factual value for traction electric drive circuit as well as methods of refined calculation for voltage losses in a collector-brush apparatus are proposed and justified. The hypothesis on distribution normal law for the value of resistance and the possibility to use its mathematical expectation as an estimated value is confirmed. The limits of resistance possible changes for TED circuits of diesel locomotives 2TE116U and TEP70BS have been established. Practical significance: The results obtained allow us to clarify energy loss amounts in a locomotive traction drive when calculating its traction and braking characteristics. Data on the limits, allowed in exploitation, of active resistance change for TED serviceable chains may be used for operative diagnostics of locomotive power circuit.
3
Zhao, Fu Zhou, Rong Liang, and Xiao Ping Chen. "Study on Steady Condition Control of Hybrid Turbocharging System." Advanced Materials Research 139-141 (October 2010): 1941–44. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.1941.
Повний текст джерелаАнотація:
This paper analyzes the principle of hybrid turbocharging system in a vehicle diesel engine, and proposes motor control model about hybrid turbocharging system in steady engine operation condition according to energy imbalance of the exhaust gas. The high-speed motor can work as a motor or a generator in this control model of different engine condition. Then mapping algorithms about n-dimensional linear interpolation and BP neural network are presented to solve steady condition control problem of the hybrid turbocharging system. Each algorithm is applied to map same sample data, the simulation results reveal that BP neural network mapping algorithm is more suitable for the mapping control of hybrid turbocharging system because BP neural network has better generalization ability and faster processing speed.
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Hidayat, M. Reza, and Denasti Fajar Sukmawan. "Analisis Penurunan Daya Pada Sistem Propulsi Lokomotif Transmisi Diesel Elektrik CC 203 Di Depo Lokomotif." SUTET 10, no. 2 (December 1, 2020): 79–87. http://dx.doi.org/10.33322/sutet.v10i2.1296.
Повний текст джерелаАнотація:
Depo Lokomotif is a work unit that is responsible for locomotive reliability in running the railroad transportation operational business. According to internal monthly report data from February 2019 to February 2020, there were 6 cases of weak locomotive power disruptions that caused operational delays. Analysis was carried out on the CC203 locomotive propulsion system in order to obtain the value of the power reduction in one case of disturbance by comparing the output value against the set standard value. Using mathematical calculation methods from the applicable equations and processing the data on MS.Excell. From the results of the study, the cause of the decrease in locomotive power is due to a decrease in the excitation value so that it affects the output value of the Main Generator at each Notch and has an impact on the motor traction power supply also decreases. The Main Generator can only issue a maximum Horse Power at Notch 8 of 1389.96 HP from 1985.31 HP with a decrease of 595 HP. The electric motion of the generator exciter has the largest decrease at Notch 7 of 6.02 volts from 30.48 volts to 24.46 volts. Motor traction can only output a maximum terminal power of 985.067 Watt from 1407 KWatt. The maximum electromagnetic torque of the Notch 8 motor traction is 2855.48 N.m in the series transition and 3070.21 N.m in the parallel transition. Losses on a series transition of 36886 Watts and a parallel transition of 9122 Watts.
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Darno. "PERENCANAAN PEMELIHARAAN MOTOR DIESEL DENGAN METODE RCM (RELIABILITY CENTERED MAINTENANCE) PADA PLTG TELUK LEMBU PEKANBARU." Jurnal Surya Teknika 7, no. 1 (December 13, 2020): 77–85. http://dx.doi.org/10.37859/jst.v7i1.2353.
Повний текст джерелаАнотація:
Teluk Lembu Gas Power Plant (PLTG) is one type of power plant that uses the power of burning fuel and high pressure air. To be able to meet the needs of electrical energy on the island of Sumatra, especially in the Riau region,electricity production must not experience a decrease in productivity due to equipment damage. Obstacles that arise are frequent downtime unexpectedresulting in the production of electricity is interrupted or even to cause derating caused by damage to the operational when the engine is running. This study aims to provide recommendations for equipment maintenance andtime intervals optimal inspectionin the generator system. The research method used is Reliability Centered Maintenance (RCM) withanalysis quantitative. Where are the stages of implementing the RCM method, namely determining thecomponents criticalin the PLTG generator engine, determining thevalues, determining the Mean Time to Failure (MTTF) and Mean Time to Repair (MTTR)time interval optimal maintenance, and making a table of causes of damage to thecomponents generator engine. After analyzing it, it was found that thecomponent criticalof PLTG Teluk Lembu is the Diesel Motor. This is obtained based on the component with the highest frequency of damage, namely 13 damage during a period of 1 year. From the results of data processing, it is obtained that the MTTF value is 0.92441 hours and the MTTR value is 0.89014 hours. Theinspection time interval optimalis 25 days, so it is advisable to carry out Corrective and Preventive maintenance activities for Diesel Motorcycles periodically every 25 days (PM 25D) in order to increase the reliability of the Diesel Motor
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Arfittariah, Arfittariah, Abdul Zain, and Akbar Akbar. "Rancang Bangun Mesin Otomatis Pencacah mini Serabut Kelapa (Mesin Cocopeat)." Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) 4, no. 6 (December 28, 2021): 517–21. http://dx.doi.org/10.32672/jnkti.v4i6.3652.
Повний текст джерелаАнотація:
Abstract --- The limited land has opened up scientists' insight that in farming it is not only land that can be relied on as a planting medium. There are still other growing media, such as cocopeat. However, cocopeat engine products that are sold are very expensive, large in size and not environmentally friendly because they use gasoline or diesel engines which cause a lot of pollution in the air and produce noise when operating, therefore a cheap, quality and environmentally friendly Cocopeat engine is needed. maintenance is cheap and safe. The purpose of this study was to increase the production of cocopeat for planting media as a substitute for soil and efficient cocopeat machine which is automatic, cheap and environmentally friendly. The research method is data collection, literature study and then design with a 1 phase pK electric motor circuit design, infrared sensor, 1 channel relay module and serrations from a sharpened nail that rotates when the electric motor is run. The results obtained from the process of chopping coconut husks produce cocopeat and cocofiber to be used as planting media, which processing machines from a safe and environmentally friendly power source.Keywords: planting medium, Cocopeat, cocofiber, environmentally friendly
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Lopatin, O. P., V. A. Likhanov, A. A. Belov, A. O. Vasiliev, and E. P. Alekseev. "Development of a methodology for calculating the integral toxicity of exhaust gases of a diesel engine running on alternative fuels." IOP Conference Series: Earth and Environmental Science 981, no. 4 (February 1, 2022): 042003. http://dx.doi.org/10.1088/1755-1315/981/4/042003.
Повний текст джерелаАнотація:
Abstract Currently, most methods for assessing the content of harmful substances in the exhaust gases (EG) of diesel internal combustion engines (DICE) differ in research programs that simulate the most significant operating modes of a tractor or motor vehicle DICE in ordinary operating conditions. And to assess their toxicity, such different methods are used as a study under steady-state operating modes that ensure the constancy of the performance of a DICE, and its study under changing parameters in transient modes. DICE of tractors, self-propelled agricultural machines and other off-road equipment are tested at a stand equipped with a loading device and measuring instruments for monitoring tests and collecting data necessary for processing test results. Emissions are determined during the sequential operation of the DICE at steady-state modes. Each mode has its own weighting coefficient, which characterizes the contribution of this mode to environmental pollution during the operation of a DICE.
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Grekhov, L. V., V. A. Markov, N. А. Arsenov, J. Zhao, and B. Sa. "Determination of the Constants of the Equation of State for Calculating the Elastic Properties of Various Engine Fuels and Technical Fluids." Herald of the Bauman Moscow State Technical University. Series Mechanical Engineering, no. 4 (143) (December 2022): 108–37. http://dx.doi.org/10.18698/0236-3941-2022-4-108-137.
Повний текст джерелаАнотація:
The creation of modern mathematical models of unsteady high-pressure fuel injection in engines requires the replacement of universal empirical equations for one of the elastic properties of fuel by a mathematically more correct equation of state. The necessity of the existence and use of convenient and simple forms of the equation of state, allowing the values of density, compressibility factor and sound velocity of traditional and alternative fuels for diesel engines to be determined quickly and with sufficient accuracy, has been substantiated. Modern approaches to the description of the state of droplet and two-phase liquids are analyzed. The absence of phase transitions in the process of fuel delivery under high pressures has allowed to substantiate the possibility of using the equation of state for the forward and backward account. An equation of state adequate to processes with high and ultrahigh pressures (up to 400 MPa) and moderately high temperatures (up to 460 K) has been proposed. The equipment used and the method of obtaining empirical information through determination of the current sound velocity are described. A method for calculating the values of constants of the chosen form of the equation of state in the form of expressions determining their dependence on temperature and an algorithm for calculating the constants of the equation of state in processing experimental data are presented. Based on literature data, as well as the results of studies conducted, sets of empirical equation of state constants for 49 diesel fuels, various test and technical fluids, and alternative motor fuels are obtained
9
Vasilieva, Elena, Aleksandr Nevedrov, Andrey Papin, and Aleksandr Chernik. "The Study of the Distillation Volume of the Liquid Tire Pyrolysis Product." E3S Web of Conferences 174 (2020): 02019. http://dx.doi.org/10.1051/e3sconf/202017402019.
Повний текст джерелаАнотація:
At present, the disposal of polymer and rubber waste, and especially automobile tires, is one of the most acute environmental problems. These types of waste pollute the environment both when they are stored at landfills and during subsequent disposal, especially if it is carried out in the form of incineration. Therefore, at present, much attention is paid to thermal methods of their processing. The results of the study of liquid product of pyrolysis of tires of Kuznetskecology+ LLC are presented in the work. During its distillation, the following fractures were obtained (the yield wt% is indicated in parentheses): petroleum (4), gasoline (21), kerosene (18), diesel (47), fuel oil (10), for which the refractive index was determined and a conclusion about their chemical composition was drawn. When analyzing the data obtained during the analysis of liquid pyrolysis product and its fractions, as well as on the basis of published data, possible chemical reactions occurring during vulcanized rubber pyrolysis are proposed. Research results show that pyrolysis products are valuable chemical raw materials that have great prospects for industrial use, including the production of synthetic motor fuels.
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Gerges, Samir N. Y., Márcio R. Kimura, and J. L. Bento Coelho. "Acoustic Modelling and Measurements of Engine Mufflers." Building Acoustics 5, no. 1 (March 1998): 27–38. http://dx.doi.org/10.1177/1351010x9800500103.
Повний текст джерелаАнотація:
Most buildings such as hospitals, hotels, governmental offices, data processing rooms, etc, are equipped with internal combustion engines, diesel motors and generators to supply energy in emergencies. These same IC engines are used for industrial applications, building services and transportation. Exhaust noise are the predominant noise source with most internal combustion engines and thus exhaust systems incorporating mufflers have been designed to reduce the noise. This paper describes the analysis of several configurations of mufflers and also presents comparisons between the results for the transmission loss obtained by numerical modelling (FEM), Transfer Matrix Method (TMM) and measurements.
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Grieshop, A. P., N. M. Donahue, and A. L. Robinson. "Laboratory investigation of photochemical oxidation of organic aerosol from wood fires 2: analysis of aerosol mass spectrometer data." Atmospheric Chemistry and Physics 9, no. 6 (March 27, 2009): 2227–40. http://dx.doi.org/10.5194/acp-9-2227-2009.
Повний текст джерелаАнотація:
Abstract. Experiments were conducted to investigate the effects of photo-oxidation on organic aerosol (OA) in dilute wood smoke by exposing emissions from soft- and hard-wood fires to UV light in a smog chamber. This paper focuses on changes in OA composition measured using a unit-mass-resolution quadrupole Aerosol Mass Spectrometer (AMS). The results highlight how photochemical processing can lead to considerable evolution of the mass, volatility and level of oxygenation of biomass-burning OA. Photochemical oxidation produced substantial new OA, more than doubling the OA mass after a few hours of aging under typical summertime conditions. Aging also decreased the volatility of the OA and made it progressively more oxygenated. The results also illustrate strengths of, and challenges with, using AMS data for source apportionment analysis. For example, the mass spectra of fresh and aged BBOA are distinct from fresh motor-vehicle emissions. The mass spectra of the secondary OA produced from aging wood smoke are very similar to those of the oxygenated OA (OOA) that dominates ambient AMS datasets, further reinforcing the connection between OOA and OA formed from photo-chemistry. In addition, aged wood smoke spectra are similar to those from OA created by photo-oxidizing dilute diesel exhaust. This demonstrates that the OOA observed in the atmosphere can be produced by photochemical aging of dilute emissions from different types of combustion systems operating on fuels with modern or fossil carbon. Since OOA is frequently the dominant component of ambient OA, the similarity of spectra of aged emissions from different sources represents an important challenge for AMS-based source apportionment studies.
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Zwanziger, Heinz W., and Heidrun Förster. "Near Infrared Spectroscopy of Fuel Contaminated Sand and Soil. I. Preliminary Results and Calibration Study." Journal of Near Infrared Spectroscopy 6, no. 1 (January 1998): 189–97. http://dx.doi.org/10.1255/jnirs.136.
Повний текст джерелаАнотація:
Regional areas may be contaminated by the past activities of the chemical and oil industries and of the military. Therefore, the present study was undertaken to test the possibilities of near infrared (NIR) reflectance spectroscopy for direct detection and determination of oil and fuel contaminations. If reliable results are obtained NIR reflectance spectroscopy could be a valuable part of land remediation processes. Preliminary investigations showed that it is possible to distinguish samples of stone chippings, sand, cultivated soil, humus and potting soil by multivariate data analysis. After spiking with gasoline, diesel, motor oil and synthetic hydrocarbon mixtures (BTEX) sand rather than cultivated soil shows obvious spectral absorptions due to contaminations higher than 1% (w/w). The influence of particle size fractions has been investigated in detail using dry sand sieved to < 500 μm (fine), 500–800 μm (medium) and >800 μm (coarse). Contaminations in fine and medium fractions often can be modelled with only one intensity at sufficiently low calibration error, SEC. With coarse fractions SEC is three times higher. Models based on derivative spectra have no significant advantage. In general, mean centring results in more pronounced error minima than multiplicative scatter correction (MSC). Partial least squares (PLS) models can be fitted to obtain any wanted SEC even by cross-validation. For comparable SEC, PLS models in general do not need more factors if samples become more inhomogeneous. Data pre-processing techniques such as Kubelka–Munk transformation, Saunderson correction, MSC and combinations thereof have been tested. Adequate sample variation of the diffuse reflectance fraction of detected light according to the Saunderson model could improve the performance of calibration models. The best values for standard error of prediction, SEP, are obtained if calibration models are derived from sets of spectra of sieved samples and used for contamination prediction of natural samples, and not vice versa. Spectra of contaminated soil and humus need cleverer spectral selection and pre-processing for better performance of calibration models.
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Wang, Bao Hui, and Chong Zhuo Wang. "System Design of Comparison of Diesel Multiple Units (DMUs) Wearing Oil Ferrographic Analysis and Spectrometric Analysis." Advanced Materials Research 396-398 (November 2011): 2256–59. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.2256.
Повний текст джерелаАнотація:
Though the motor car I or motor car II of the diesel multiple units （DMUs） has the same objective condition, the difference of the wearing oil, particularly the condition of the calculator software comprehensive processing is a new topic that we should pay attention to. In this article, we have done with the values of ferrographic analysis and spectrometry analysis of motor car I and motor car II of the“New Dawn ’’DMUs ,for example, with the help of the Delphi 7 software and gotten homologous curve diagram at the same condition. We can evaluate the wear degree of diesel engine of the motor car I or motor car II of the DMUs and have a new way to deal with the wearing of the electric multiple units as well as the other types of the DMUs according to the characteristics of ferrographic analysis and spectrometric analysis of the motor cars.
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Magaril, E. R., and R. Z. Magaril. "EFFECT OF DENSITY OF FUELS ON THE OPERATIONAL AND ECOLOGICAL CHARACTERISTICS OF MOTOR VEHICLES." Oil and Gas Studies, no. 6 (December 1, 2016): 108–16. http://dx.doi.org/10.31660/0445-0108-2016-6-108-116.
Повний текст джерелаАнотація:
Negative influence of the increased density of motor fuels on ecological and on operational characteristics of motor transport is proved. The complex of the technological solutions, aimed to decrease the density of the fuels, which are used, including a change of a ratio of capacities of oil processing, temperature range of boiling of gasoline and diesel fractions, introduction of additives into fuels and addition of butanes to gasolines is offered.
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I.J Agabi and J.S Ibrahim. "Energy Evaluation and Processing Cost Reduction in Agudu Maize Processing Industry." International Journal of Engineering and Management Research 11, no. 1 (February 27, 2021): 142–55. http://dx.doi.org/10.31033/ijemr.11.1.20.
Повний текст джерелаАнотація:
This study evaluated energy consumption by Agudu Farms Limited (AFL) that processes maize and cassava into flour for human consumption. The objectives of study included to determine energy contribution to processing cost, to minimize the processing cost and to propose a new selling price per unit of sale of the product. The study materials included; a multi-meter, stopwatch, electrical appliances’ nameplates and bills, fuel purchased receipts, and production records. Data was collected through detailed energy audits and measurements of present electricity consumption. This data was converted into energy intensities, rates and costs, and analyzed. The monthly energy intensity plotted on bar charts using Microsoft excel and the results showed that diesel had the highest consumption variation of 3500 kWh/t, electricity 200kWh/t and labor 110 kWh/t. The percentage of energy contribution to processing cost was 33%. In monetary terms, the processing cost per hour of operation showed average value of ₦830. Whereas, the minimum production cost per hour using Tora software showed ₦767. The new product price per ten-kilogram (10kg) unit of sale of maize flour, using break-even analysis, showed ₦2864. The study observed that diesel contributed more to production cost than electricity and labor and therefore, recommended the setting up of an energy monitoring team to monitor procurement and control utilization of diesel to reduce production cost.
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Pratama Putra, Ida Bagus Indra, and Sri Eniyati. "Analisis Pola Pembelian Konsumen pada Data Transaksi Penjualan Suku Cadang Mobil dengan Algoritma FP-Growth (Studi Kasus: PT. Sun Star Motor Kudus)." Jurnal Ilmiah Universitas Batanghari Jambi 22, no. 2 (July 26, 2022): 882. http://dx.doi.org/10.33087/jiubj.v22i2.2004.
Повний текст джерелаАнотація:
PT. Sun Star Motor Kudus is an automotive company by providing genuine spare parts to consumers. PT. Sun Star Motor Kudus has a database system that is integrated with a computer due to the large number of transactions within a certain period of time. Transaction data can be processed with data mining science to get hidden information. For this reason, data transactions will be processed using the association rule. This rule is used to generate a combination of items from all transactions within 1 year. By applying the FP-Growth algorithm in Kaggle, several combinations of items that are frequently purchased are found, namely 1) Grease/Vit Paslin and Oil Filter Canter 2) Diesel Engine Oil L300 and Grease/Vit Paslin 3) Oil Ring and Diesel Engine Oil L300 4) Engine Oil L300 Diesel and L300 Oil Filter 5) L300 Diesel Engine Oil and Accu Water. With the combination of these itemset, PT. Sun Star Motor Kudus can increase profits by using this information. For example, providing an attractive promo if a customer buys a combination of the itemset.
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Sailon and Karmin. "Steam Boiler Design Using Diesel Motor Exhaust Gas." International Journal of Research in Vocational Studies (IJRVOCAS) 2, no. 3 (December 27, 2022): 51–55. http://dx.doi.org/10.53893/ijrvocas.v2i3.140.
Повний текст джерелаАнотація:
As it is known that the boiler is a device used to heat water. This research is conducted to propose another alternative in energy saving efforts by utilizing exhaust gas energy from Diesel motors which so far have not received much attention. The exhaust gases is reused to react the boiler. The method used in design this tool uses the literature study method. The data is taken from the exhaust gas of a 9 x 12 x 4 cylinders Diesel engine with a speed of 300 rpm and Mep 80 Psi, engine power (N) 92.4 Hp. From the results of this study, the results show that the size of the steam pipe with pipe outer diameter (OD) is 1 in, spaced 1 in, the number of rows is 2 rows, the number of pipes in one row Z = 12 rows, with carbon steel pipe material SA 106 Grade. Meanwhile, the size and arrangement of the economizer pipes are the outer diameter of the pipe (OD) 1 in, the spacing = 2 in, the number of rows = 6 rows, the total number of pipes Z = 2 x 6 = 12 pieces, the overall length of the pipe is L x 12, the economizer pipe = 644 in, and SA 106 Grade carbon steel pipe material. The thickness of the boiler drum t = 0.245 cm, capacity Q = 536.75 lb/hour, and the boiler drum material is SA 302 Grade B carbon steel.
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Pakpahan, B., C. Silalahi, D. Gultom, E. Sihombing, J. Simanjuntak, L. Munthe, P. Panjaitan, and R. Lubis. "ANALISIS PERFORMANSI MOTOR BAKAR PADA GENERATOR-SET DENGAN KAPASITAS DAYA 440kW II." SINERGI POLMED: Jurnal Ilmiah Teknik Mesin 2, no. 2 (February 8, 2021): 18–27. http://dx.doi.org/10.51510/sinergipolmed.v2i2.27.
Повний текст джерелаАнотація:
Motor bakar adalah mesin kalor atau mesin konversi energi yang mengubah energi kimia dari bahan bakar menjadi energi mekanik berupa kerja. Salah satu jenis dari motor bakar yaitu mesin diesel. Mesin diesel merupakan motor bakar pembakaran dalam yang proses pembakaran bahan bakarnya terbakar sendiri tanpa menggunakan busi atau loncatan bunga api. Proses ini terjadi terjadi karena bahan bakar yang diinjeksikan ke dalam aliran udara panas dengan tekanan dan temperatur tinggi akibat proses kompresi di dalam silinder. Adapun parameter yang mempengaruhi performansi motor bakar jenis mesin diesel yaitu tekanan efektif rata-rata, daya indikator, daya poros, konsumsi bahan bakar spesifik, efisiensi volumetrik, dan efisiensi termal. Dari hasil perhitungan dan analisa data diperoleh daya indikator 273 kW, daya poros sebesar 232,05 kW, konsumsi bahan bakar spesifik 0,1745 kg/kWh, efisiensi volumetrik 95,4% dan efisiensi termal 54,3 %.
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VAN HARLING, VINA N. "PENGARUH VARIASI CAMPURAN BAHAN BAKAR SOLAR DAN MINYAK KELAPA SAWIT TERHADAP PUTARAN MOTOR DIESEL TIPE RINO 115PS." SOSCIED 2, no. 1 (July 2, 2019): 26–34. http://dx.doi.org/10.32531/jsoscied.v2i1.167.
Повний текст джерелаАнотація:
This research was conducted to determine the effect of variations in the mixture of diesel fuel and palm oil on the 115PS Rino Type Diesel motor rotation. The study was conducted with a variety of pure diesel fuel, a mixture of diesel 70% palm oil 30%, diesel 50% palm oil 50%, and diesel mix 30% palm oil 70%. Based on the results of tests conducted obtained greater engine speed (rpm) data generated by the use of pure diesel fuel with a 7 mm gas screw adjustment of 1800 rpm. Whereas the lower engine speed (rpm) results from the use of a 30% diesel fuel mixture with 70% palm oil with a 2 mm gas screw adjustment of 620 rpm
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Fecteau, Jillian H., and Douglas P. Munoz. "Warning Signals Influence Motor Processing." Journal of Neurophysiology 97, no. 2 (February 2007): 1600–1609. http://dx.doi.org/10.1152/jn.00978.2005.
Повний текст джерелаАнотація:
When observers initiate responses to visual targets, they do so sooner when a preceding stimulus indicates that the target will appear shortly. This consequence of a warning signal may change neural activity in one of four ways. On the sensory side, the warning signal may speed up the rate at which the target is registered by the brain or enhance the magnitude of its signal. On the motor end, the warning signal may lower the threshold required to initiate a response or speed up the rate at which activity accumulates to reach threshold. Here, we describe which explanation is better supported. To accomplish this end, monkeys performed different versions of a cue-target task while we monitored the activity of visuomotor and motor neurons in the superior colliculus. Although the cue target task was designed to measure the properties of reflexive spatial attention, there are two events in this task that produce nonspecific warning effects: a central reorienting event (brightening of central fixation marker) that is used to direct attention away from the cue, and the presentation of the cue itself. Monopolizing on these tendencies, we show that warning effects are associated with several changes in neural activity: the target-related response is enhanced, the threshold for initiating a saccade is lowered, and the rate at which activity accumulates toward threshold rises faster. Ultimately, the accumulation of activity toward threshold predicted behavior most closely. In the discussion, we describe the implications and limitations of these data for theories of warning effects and potential avenues for future research.
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Buryukin, F. A., V. A. Safin, and S. S. Kositcyna. "Obtaining a diesel fuel component from liquid products of oxidative pyrolysis of wood." Journal of Physics: Conference Series 2094, no. 5 (November 1, 2021): 052040. http://dx.doi.org/10.1088/1742-6596/2094/5/052040.
Повний текст джерелаАнотація:
Abstract Recycling and rational use of wood-processing industry waste is an urgent task for the economy and industry. On the basis of experimental studies on the oxidative pyrolysis of Siberian pine and Downy birch, a basic technological scheme for components of motor fuels obtaining is proposed. It is shown that the main components of liquid products of wood pyrolysis in water vapor are aromatic and saturated hydrocarbons, as well as oxygen-containing compounds that need to be hydrogenated.
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Jayeng Maulana and Arief Budi Laksono. "Analisis Efisiensi Antara Motor Listrik Induksi Dengan Mesin Diesel Sebagai Penggerak Pompa Air Sungai." Jurnal JEETech 3, no. 2 (October 5, 2022): 90–95. http://dx.doi.org/10.48056/jeetech.v3i2.199.
Повний текст джерелаАнотація:
Dalam perkembangan teknologi di era digital ini, umat manusia akan semakin maju dalam hal elektronika, sehingga dapat mempermudah pekerjaan maupun kegiatan manusia dalam sehari-hari, bukan hanya dalam hal teknologi dan kecerdasan buatan, manusia dizaman modern ini akan membutuhkan sumber daya untuk menghidupkan dan menjalankan alat sebagai pembantu pekerjaan dan kehidupan sehari-hari. Kesimpulan dari penelitian diatas dapat disimpulkan, daya yang dibutuhkan untuk menggerakkan pompa air dengan hasil maksimum adalah sebesar 3,58 Kw, volume perpindahan air pada putaran pompa air 1500rpm = 15,6m3/jam, tinggi air jika dilakukan pengujian selama 1 jam: t = 15,6 / (5,5 × 8) = 0,35 m, estimasi konsumsi daya motor listrik = 0,55kWh, kemudian konsumsi daya motor listrik = 2,4kw/jam, Biaya operasional motor listrik: Rp3465/jam, estimasi konsumsi bbm mesin diesel menurut data dari spesifikasi adalah 294g/kWh, konsumsi daya mesin diesel = 520ml/jam, biaya operasional motor listrik = Rp3465/jam, biaya operasional mesin diesel = Rp2668/jam.
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D. A., Raspopov, and Belousov P.A. "Development of Methods and Algorithms for Spectral Data Analysis for Vibroacoustic Diagnostics of Diesel-Generator Sets at NPPs." KnE Engineering 3, no. 3 (February 21, 2018): 301. http://dx.doi.org/10.18502/keg.v3i3.1629.
Повний текст джерелаАнотація:
In this article, the main methods and algorithms for spectral data analysis for vibroacoustic diagnostics of diesel-generator sets at nuclear power plants are considered. To collect the diagnostic data, an experimental setup was developed, thanks to which the sound signals of the diesel generator were obtained under various operating conditions. The recording and processing of signals was carried out using the application package and MATLAB programming language. The article describes the application of correlation and spectral analysis for data processing and analysis. Also, the authors apply regression analysis to find the dependence of the speed of the diesel engine on the frequency of acoustic oscillations. The prediction of the number of revolutions from the frequency of sound vibrations makes it possible in the future to build a more accurate mathematical model of engine operation, and also to find diagnostic features for detecting malfunctions and anomalies in the operation of a diesel generator.
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Borecki, Michal, Przemyslaw Prus, and Michael L. Korwin-Pawlowski. "Capillary Sensor with Disposable Optrode for Diesel Fuel Quality Testing." Sensors 19, no. 9 (April 27, 2019): 1980. http://dx.doi.org/10.3390/s19091980.
Повний текст джерелаАнотація:
Diesel fuel quality can be considered from many different points of view. Fuel producers, fuel consumers, and ecologists have their own ideas. In this paper, a sensor of diesel fuel quality type, and fuel condition that is oriented to the fuel’s consumers, is presented. The fuel quality types include premium, standard, and full bio-diesel classes. The fuel conditions include fuel fit for use and fuel degraded classes. The classes of fuel are connected with characteristics of engine operation. The presented sensor uses signal processing of an optoelectronic device monitoring fuel samples that are locally heated to the first step of boiling. Compared to previous works which consider diesel fuel quality sensing with disposable optrodes which use a more complex construction, the sensor now consists only of a capillary probe and advanced signal processing. The signal processing addresses automatic conversion of the data series to form a data pattern, estimates the measurement uncertainty, eliminates outlier data, and determines the fuel quality with an intelligent artificial neural network classifier. The sensor allows the quality classification of different unknown diesel fuel samples in less than a few minutes with the measurement costs of a single disposable capillary probe and two plugs.
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Muratov, Alexey, Andrey Balakin, Denis Bardin, Valentina Tselikovskaya, and Leyla Kurmanova. "Increasing the efficiency of series D49 diesel engines by transfer to gas engine fuel." Bulletin of scientific research results, no. 1 (March 28, 2019): 15–23. http://dx.doi.org/10.20295/2223-9987-2019-1-15-23.
Повний текст джерелаАнотація:
Objective: Studying the effect of diesel locomotives on the use of natural gas as motor fuel. Identification of the main advantages of using natural gas in internal combustion engines. Analysis of the effect of gas engine fuel on the performance of diesel locomotive power plants. Methods: Simulation of the working process of two engines: the first – on diesel fuel, the second – on the gas mixture. Adjustment of the mathematical model according to the real parameters of 1А-5Д49-2 diesel engine, taken during the rheostat tests of 2ТЭ116 diesel locomotive. Conducting calculation and experimental studies to assess the effect of the complete replacement of diesel fuel with natural gas on the operation of the locomotive power plant; accumulation of computational and experimental data, their systematization and statistical analysis. Theoretical dependences of the change in the specific effective fuel consumption of a diesel engine operating on natural gas through the gas cycle on the position of the driver’s controller, as well as dependences of the change in the effective performance of a diesel engine have been discussed. The calculated values are compared for the diesel engine operating on natural gas and the diesel engine operating on diesel fuel. Results: The calculated dependencies of the performance of Series 1А-5Д49-2 (16ЧН26/26) diesel engine of 2ТЭ116 diesel locomotive with the use of gas engine fuel have been obtained. The obtained data has been analyzed allowing carrying out theoretical estimation of efficiency of natural gas used as gas engine fuel throughout the entire operating range of 1А-5Д49-2 (16ЧН26/26) diesel engine of 2ТЭ116 diesel locomotive. A conclusion was confirmed about the expediency and efficiency of using natural gas in railway transport, particularly diesel locomotives. The influence of replacement of diesel fuel with natural gas on the performance indicators of diesel locomotives has been determined. Practical importance: The obtained dependencies will help in forecasting and in the theoretical evaluation of the feasibility of using natural gas as a motor fuel for locomotive power plants.
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Shcherban, P. S., E. V. Mazur, and S. N. Mazur. "The process parameter matrix method in controlling marine engine wear dynamics." Industrial laboratory. Diagnostics of materials 88, no. 9 (September 21, 2022): 47–52. http://dx.doi.org/10.26896/1028-6861-2022-88-9-47-52.
Повний текст джерелаАнотація:
Determination of the analytical relationship between real time changes in the quality characteristics of motor oils and an assessment of the state of the mechanism units subjected to friction is important when predicting the tribological characteristics of marine diesel engines. Changes in the lubricant parameters reflect the current technical condition of the engine components and assemblies. A method of process parameter matrix (PPM) is proposed to control the wear dynamics of a marine diesel engine. PPM is used to process statistical data on the performance of oils used in a MAN B&W Diesel Den 6L28/32A marine diesel engine through 2007 to 2021. The results of practical studies of changes in the physicochemical characteristics of motor oils in real operating conditions are presented. The results obtained can be used in the development of specialized software that allows obtaining operational information about the dynamics of engine wear.
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Li, Fan Xiu, Xing Ping Wen, and Shao Jin Yi. "Numerical Measurement and Data Processing of Air Pollution." Applied Mechanics and Materials 577 (July 2014): 1219–22. http://dx.doi.org/10.4028/www.scientific.net/amm.577.1219.
Повний текст джерелаАнотація:
Relational analysis method was a data process method used to sort out the correlation extent of effect factors in a system with uncertain information. Common mathematical methods were not applicable for describing the relationship. A new method, equivalent numerical relational degree (ENRD) model was developed to evaluate the effect of different factors on air pollution. The effects of different factors-the port throughput, amount of coal, industrial output, and motor vehicle ownership, investment in fixed assets, real estate development and construction of housing construction area on the quality of atmospheric environment were studied. The degrees of correlation were calculated according to ENRD and the values of the port throughput, amount of coal, industrial output, motor vehicle ownership, investment in fixed assets, real estate development and construction of housing construction area were 0.7947, 0.7943, 0.7289, 0.7238, 0.6702 and 0.6527, respectively. From these values, the relations of these factors to the quality of atmospheric environment could be described and evaluated, and the port throughput and amount of coal were relatively major.
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Kang, Lili, Dongjie Jiang, Chaoying Xia, Yongjiu Xu, and Kaiyi Sun. "Research and Analysis of Permanent Magnet Transmission System Controls on Diesel Railway Vehicles." Electronics 10, no. 2 (January 14, 2021): 173. http://dx.doi.org/10.3390/electronics10020173.
Повний текст джерелаАнотація:
As the energy crisis and environmental pollution continue to be a gradual threat, the energy saving of transmission systems has become the focus of railway vehicle research and design. Due to their high-power density and efficiency features, permanent magnet synchronous motors (PMSM) have been gradually applied in railway vehicles. To improve the efficiency of the transmission system of diesel railway vehicles, it is a good option to use PMSM as both a generator and traction motor to construct a full permanent magnet transmission system (FPMTS). Due to the application of the new FPMTS, some of the original control strategies for diesel railway vehicle transmission systems are no longer applicable. Therefore, it is necessary to adjust and improve the control strategies to meet the needs of FPMTS. We studied several key issues that affect the reliability and comfort of the vehicles. As such, this paper introduced the FPMTS control strategy, including the coordinated control strategy of the diesel and the traction motor, the two degrees of freedom (2DOF) decoupling current regulator, the maximum torque control of the standardized unit current, the wheel slip protection control, and the fault protection strategy. The experiment was carried out on the test platform and the test run of the diesel shunting locomotive equipped with the FPMTS. The results showed that the control strategy described in this paper met the operation characteristics of the FPMTS and that the control performance was superior. The study of FPMTS lays the foundation for the subsequent application of permanent magnet motors in high-powered diesel locomotives and high-speed diesel multi-units.
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Feng, Fu Zhou, Wei Xing, Ai Wei Si, and Guang Ping Wu. "Reliability Assessment for a Certain Diesel Engine Based on Performance Degradation Data." Advanced Materials Research 199-200 (February 2011): 481–86. http://dx.doi.org/10.4028/www.scientific.net/amr.199-200.481.
Повний текст джерелаАнотація:
Reliability of equipment has long been considered as an important quality characteristic. Traditional methods of equipment reliability assessment are based on lifetime data. With equipment being much more reliable and the growing need for developing new equipments within shorter period and at lower cost, we can hardly get enough lifetime data in many cases. Performance degradation data can also be used for reliability assessment. This paper is mainly researched on reliability of a certain diesel engine. Through analyzing the failure mode and failure mechanism, performance degradation parameters of the diesel engine is selected as compression pressure in a cylinder while driven by an electrical motor. Based on a long time accumulation on performance degradation data, two methods of degradation path fitting and degradation value distribution are tried in this paper to evaluate reliability of the diesel engine. Besides, the regulation of the reliability variation is given by the results of the assessment.
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Yang, Shu Zhen, Tao Yu, and Yu Jie Bai. "Investigation of the Embedded Control System of Diesel Injector Nozzle Grinding." Applied Mechanics and Materials 620 (August 2014): 352–57. http://dx.doi.org/10.4028/www.scientific.net/amm.620.352.
Повний текст джерелаАнотація:
An embebbed system based on S3C6410 controller and Linux operating system is established to overcome the deficiencies of the traditional control system for high accuracy processing of grinding diesel injector nozzle because of its high speed and real-time performance. In this paper,the general structure of the system is designed firstly. Secondly, the detailed hardware platform is constructed and its peripheral equipment is selected. In addition,the software structure is presented. Finally, the main application program,including of processing control program and algorithm of the flow signal processing which is the key factor for high accuracy maching, is studied. The actual processing data shows that this system has good real-time performance, high processing accuracy and stablity.
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Tashmukhambetova, Zheneta Kh, Tanakoz O. Kalamgali, Yermek A. Aubakirov, Larissa R. Sassykova, Firuza Zh Akhmetova, and Albina S. Alpysbay. "Activity features of catalysts for thermocatalytic hydrogenation processing of polymer waste." Chimica Techno Acta 9, no. 3 (July 5, 2022): 20229302. http://dx.doi.org/10.15826/chimtech.2022.9.3.02.
Повний текст джерелаАнотація:
The aim of this study was to obtain new catalysts for the processing of carbon-containing polymer waste based on polyethylene and polypropylene, represented mostly by lids from beverages bottled in plastic containers, which accumulate in huge quantities in landfills, by the method of thermocatalytic hydrogenation into liquid fuels and other products. The process was carried out in the presence of fuel oil as a binder, a source of hydrogen and additional hydrocarbons. Thus, two tasks can be solved simultaneously: recycling the polymer waste and obtaining the alternative raw materials from the polymer waste in order to save resources and improve the environmental situation in general. New catalysts based on activated zeolite modified with Mo(VI) and W(VI) salts of various concentrations for the thermocatalytic hydrogenation processing of waste plastics into motor fuels were synthesized. The composition, structure, morphology and adsorption properties of the catalysts were determined by different physicochemical methods. The suitability of the obtained catalysts for use in the thermocatalytic hydrogenation processing of plastic waste into fuels was determined. The catalysts were tested during the processing of a mixture of polyethylene-polypropylene: a paste-forming agent (fuel oil) at T=450 °C and a pressure of 0.6 MPa. The individual and group composition of gasoline, diesel and gas oil fractions was determined by chromatography coupled with mass spectrometry. The maximum yield of the gasoline fraction (16.9 wt.%) and diesel fraction (39.31 wt.%) was obtained on a 2%W(VI)/diatomite catalyst.
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Golovko, A. K., V. F. Kamyanov, and I. G. Shabotkin. "Initiated Low-Temperature Cracking of Ozonizated Petroleum and Heavy Petroleum Ends." Eurasian Chemico-Technological Journal 6, no. 2 (July 12, 2017): 99. http://dx.doi.org/10.18321/ectj597.
Повний текст джерелаАнотація:
New way to produce greater amounts of distillate motor fuels from crude petroleums, petroleum residues and natural bitumens by an ozonization of raw material followed with thermal treatment of the product formed under the conditions similar to ones characteristic of common petroleum atmospheric rectification process is proposed. About half of heavy petroleum components boiling above 350°C can be converted<br />into light hydrocarbons constituting the gasoline and diesel fractions and total yield of the lasts can be accordingly increased by means of described new method of oil processing. Ultimate products contain up<br />to 16 wt.% olefins and lesser amounts of sulfur compounds and have noticeably improved principal operational properties in comparison with analogues straight-run motor petroleum distillates.
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Dong, Gai Hua. "Research and Discussion on Data Processing of the Temperature Rise Test for the Motor Winding." Advanced Materials Research 354-355 (October 2011): 1257–60. http://dx.doi.org/10.4028/www.scientific.net/amr.354-355.1257.
Повний текст джерелаАнотація:
Motor winding temperature rise test is the most important test that examines whether the insulation material and the production process meet the motor design life or not. Therefore, it is the key to accurately process the temperature rise test data. For a motor, several motors with the same model and the special motor, the paper puts forward the different methods to process the test data. In addition, the paper takes a single phase AC series excited motor for example, and proves that these methods are effective.
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Zhang, Wei Bo, and Ming Ming Wu. "Estimation of Viscosity of Biodiesel-Diesel Blends with near Infrared Spectroscopy." Advanced Materials Research 608-609 (December 2012): 324–27. http://dx.doi.org/10.4028/www.scientific.net/amr.608-609.324.
Повний текст джерелаАнотація:
Biodiesel is one of the most important substitutes for diesel oil. This work reports the use of near Infrared Spectroscopy (NIR) to estimate the kinematic viscosity value of biodiesel-diesel blends. Partial least squares models were developed using data of different spectra regions and different pre-processing methods were employed for developing the calibration models. The results indicate that NIR can be used in biodiesel-diesel blends properties detecting.
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Pratiwi, Yuliyanti Dian, Sutarno Sutarno, and Warso Warso. "Studi Eksperimental Unjuk Kerja Motor Diesel Putaran Stasioner dengan Campuran Bahan Bakar Biodiesel Buah Nyamplung." Accurate: Journal of Mechanical Engineering and Science 2, no. 1 (April 29, 2021): 7–13. http://dx.doi.org/10.35970/accurate.v2i1.582.
Повний текст джерелаАнотація:
The recent development of technology and the continuous development of human lifestyle have resulted in theincreasing of the need for energy, so that the availability of energy from non-renewable fossil fuels is decreasing, and it iseven predicted that it will run out over time. One of the most prospective vegetable oil resources to be used as a rawmaterial for biodiesel is product from the processing of nyamplung seeds (Calophyllum Inophyllum L). Due to nyamplungseed oil is not included in the category of primary food needs, so its usage as a biodiesel will not interfere with human foodneeds. The purpose of this research is to find out how much torque and sfc power to the mixture of biodiesel fuel fromnyamplung fruit. This research used experimental studies with research that has been done to produce Power, Torque, andSfc from a mixture of 20% of 1.72kW, 10,955Nm and the value of increase down 10.08%. Percentage of 30% 1,692kW,10,777N.m and the value increase / decrease -1.09%. The percentage of 40% 1,719kW, 10,949N.m and the rate is up /down 5.77% for Dexlite. Percentage of 20% 1,722kW, 10,968N.m and 4.63% increase / decrease value. Percentage of 30%1,710kW, 10,891N.m and value increase / decrease 6.52%. The percentage of 40% 1,722kW, 10,968N.m and the increasedvalue by 5.95% for Pertamina DEX.
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Mancopes, Renata, and Fernanda Schultz. "Processing of metaphors in transcortical motor aphasia." Dementia & Neuropsychologia 2, no. 4 (December 2008): 339–48. http://dx.doi.org/10.1590/s1980-57642009dn20400019.
Повний текст джерелаАнотація:
Abstract Great emphasis has been placed on the right hemisphere, due to its possible selective contribution, in the processing of metaphorical statements. Objectives: To describe the processing of metaphors in the case of a patient with transcortical motor aphasia, using specific tests for patients with encephalic injuries of the right hemisphere, and to contribute to the discussion on the inter-hemispheric relationships associated with this function. Methods: A 54 year-old man with transcortical motor aphasia was evaluated three years after a left hemisphere stroke. The tasks of comprehension of metaphors were based on the subtest Metaphor Comprehension Task of the Montreal Evaluation of Communications Scale (MEC). Two metaphor comprehension tests were applied, in 45-minute sessions with a 48 hour interval between each. Test 1 involved comprehension of the metaphors according to the options offered, and Test 2 the comprehension of metaphors measured by response time and visual field. Results: Although the right hemisphere was not affected by the stroke in this case, difficulties were observed in the processing of metaphors. Conclusions: This study suggests that the left hemisphere participates in the processing of figurative meanings. The adaptability of the brain can also re-accommodate the uninjured areas of the brain, causing the dynamic of the brain to be modified. As a result, deducing cerebral functions based on clinical data can be problematic. The value of this study is that it can contribute to clinical aspects of language rehabilitation.
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Efendi, Hasrul, Adi Pratama Putra, and Dewi Sartika. "Kalibrasi Pompa Injeksi Tipe In-Line Dalam Persamaan Volume Bahan Bakar Motor Diesel 4 Silinder." V-MAC (Virtual of Mechanical Engineering Article) 6, no. 1 (April 20, 2021): 15–21. http://dx.doi.org/10.36526/v-mac.v6i1.1150.
Повний текст джерелаАнотація:
Injector is an important component in the diesel engine fuel injection system. This study aims to obtain the results of the in-line type injection pump calibration in the equation of the fuel volume of a 4 cylinder diesel motor. The research was conducted by making simple calibration equipment. Experiments were carried out for 200-300 rpm, 350-450 rpm and 550-600 rpm experimental apparatus rotation speed. Measurements are made for the volume of fuel using a measuring cup. Injection pump calibration is done by loosening the lock on the sleeve then sliding the sleeve to the left or right on each plunger to get fuel volume similarity. The results of data collection before calibration showed the volume of fuel was 26 ml, 30 ml, 30 ml, and 28 ml.
Keywords: calibration, injecton pump, in-line, diesel engine
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Bunakov, P. Y., and A. B. Kondakova. "Information support of an automated control system of work of the rolling stock." Izvestiya MGTU MAMI 9, no. 4-1 (February 20, 2015): 12–16. http://dx.doi.org/10.17816/2074-0530-67145.
Повний текст джерелаАнотація:
The article describes the structure of the database to work with the information obtained from the automated control system (ACS) parameters of diesel rolling stock and diesel fuel accounting. There are presented the main steps of information processing, to ensure data integrity, improve per-formance and simplify the work with the database.
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Bogomolov, Alexander R., Georgiy M. Dubov, and Sergey S. Azikhanov. "Comparative analysis of the concentration of CO2, CO, CH, and O2 in the exhaust gases of BelAZ dump trucks that use liquefied natural gas as a motor fuel." Nexo Revista Científica 35, no. 02 (June 30, 2022): 552–65. http://dx.doi.org/10.5377/nexo.v35i02.14634.
Повний текст джерелаАнотація:
The paper aims to compare the CO2, CO, CH, and O2 concentrations in the exhaust gases of Cummins KTA 50 diesel engines of BelAZ 75131 mining dump trucks equipped with an onboard cryogenic fuel system and running on diesel and gas-diesel fuel at coal mines of Kuzbass (Russia). The research novelty lies in determining ecological efficiency when using liquefied natural gas (methane) as a motor fuel for heavy-duty mining dump trucks. In the near future, the use of this type of motor fuel will minimize the anthropogenic impact on the environment by reducing harmful emissions and provoking the environmental safety of the region where a large amount of mining equipment is used in coal mining enterprises. The demand for mining dump trucks, their operating conditions, and the world experience in converting mining equipment to liquefied natural gas (methane) were briefly analyzed. The use of alternative fuel sources for heavy-duty mining trucks is a promising way to reduce harmful emissions into the atmosphere. This paper presents a research technique. The data on the study of the CO2, CO, and CH groups and O2 concentrations in the exhaust gases of Cummins KTA 50 diesel engines of BelAZ 75131 mining dump trucks hauling rock mass are presented. The obtained data on the CO2, CO, and CH groups and O2 concentrations during diesel and gas-diesel operation of empty and laden BelAZ 75131 mining dump trucks when going uphill and downhill were substantiated. The results of calculating the average weighted emissions of the CO2, CO, and CH groups in the exhaust gases of Cummins KTA 50 diesel engines were presented.
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Otake, Mihoko, and Yoshihiko Nakamura. "Spinal Information Processing and its Application to Motor Learning Support." Journal of Robotics and Mechatronics 17, no. 6 (December 20, 2005): 617–27. http://dx.doi.org/10.20965/jrm.2005.p0617.
Повний текст джерелаАнотація:
We designed motor learning support for acquiring motor skills involving neural mechanisms. We should be able to acquire neural information by analyzing whole-body muscle data, because the nervous system controls the musculoskeletal system and lengths and forces information is fed back to the nervous system. Motor information is calculated by mapping motion-capture data on to a musculoskeletal human model. Neural information represents the set of motor information on the muscles innervated by the arbitrary spinal cord segment. Neural information processing is proposed which calculates correlation among the neural information. We demonstrate the effectiveness of our proposal by experimental results of “kesagiri.”
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Nurtanto, Muhammad. "MOTOR DIESEL BERBAHAN BAKAR CAMPURAN MINYAK SOLAR DENGAN MINYAK KEMIRI DAN MINYAK WIJEN." Jurnal Pendidikan Teknik Mesin Undiksha 7, no. 2 (August 15, 2019): 71. http://dx.doi.org/10.23887/jptm.v7i2.26499.
Повний текст джерелаАнотація:
Penelitian ini bertujuan untuk mengetahui karakteristik bahan bakar (minyak solar, minyak kemiri dan minyak wijen), karakteristik campuran bahan bakar, dan mengetahui besarnya konsumsi bahan bakar dengan variasi putaran mesin. Pengukuran dilakukan dengan menggunakan analyzer stargas 898. Data yang diperoleh dianalisis secara deskriptif dengan menggambarkan secara grafis dan fenomena terukur. Hasil pengujian diketahui bahwa: (1) karakteristik minyak kemiri, minyak wijen memenuhi karakteristik bahan bakar; (2) campuran bahan bakar minyak solar 80% dengan minyak kemiri 10% dan minyak wijen 10% menghasilkan karakteristik yang lebih baik; dan (3) konsumsi bahan bakar terhadap putaran mesin 1600 rpm, 2000 rpm, dan 2300 rpm yang lebih stabil pada campuran bahan bakar minyak solar 80% dengan minyak kemiri 10% dan minyak wijen 10% masing-masing SFC yang diperoleh sebagai berikut 0.279882, 0.288938, dan 0.281213. Kata Kuci: Minyak solar, minyak kemiri, minyak wijen, karakteristik bahan bakar, dan konsumsi bahan bakar. This study aims to determine the characteristics of fuel (diesel oil, walnut oil and sesame oil), the characteristics of the fuel mixture and knowing the amount of fuel consumption with a variation of the engine rotation. Measurements were made using 898 analyzer stargas. Data were analyzed descriptively by describing in graphic and measurable phenomenon. The test results found that: (1) the characteristics of hazelnut oil, sesame oil meets the characteristics of the fuel; (2) a mixture of diesel fuel to 80% with 10% of hazelnut oil and sesame oil 10% yield better characteristics; and (3) the fuel consumption of the engine rev 1600 rpm, 2000 rpm and 2300 rpm is more stable on a mixture of diesel fuel to 80% with hazelnut oil 10% and sesame oil 10% each SFC obtained as follows 0.279882, 0.288938 and 0.281213. Keywords: Diesel oil, fuel characteristics, fuel consumption, hazelnut oil, and sesame oil.
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Zhang, Xian, Qinglong Wang, Weina Qin, and Limei Guo. "Sustainable Policy Evaluation of Vehicle Exhaust Control—Empirical Data from China’s Air Pollution Control." Sustainability 12, no. 1 (December 22, 2019): 125. http://dx.doi.org/10.3390/su12010125.
Повний текст джерелаАнотація:
With the increase of car ownership, mobile pollution has become an important source of air pollution, which makes it more difficult for China to control air pollution. In order to control mobile pollution from automobile exhaust, China has taken a series of comprehensive measures. The paper studies the emission reduction effect from the perspective of flow pollution and stock pollution. First of all, the paper uses the actual emission data of motor vehicles to study the emission reduction effect by gasoline and diesel vehicles. The results show that: (1) Fuel price, fuel tax (except diesel), and emission and gasoline standards have an emission reduction effect on gasoline vehicle exhaust control, while the restriction has no effect. (2) In gasoline cars, the emission reduction effect in the Middle East is more significant than in the West, and the effect in the West is better than that in the Middle East. (3) As for diesel vehicles, the effect of policy in the West is superior to the East. Further, the east is better than in the middle. Secondly, based on the actual emission data of Chinese motor vehicles, the paper simulates the change value of stock pollution from automobile exhaust under different policies, and concludes that the economic effect of policy depends on the ecological absorption rate and discount rate. When the net discount value NPV is positive, the government should do its best to interfere with the emission of automobile exhaust. When the net discount value NPV is negative, the government doesn’t have to interfere with the emission of automobile exhaust.
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Dubov, Georgiy, Dmitriy Trukhmanov, Iliya Kuznetsov, Sergey Nokhrin, and Aleksey Sergel. "Prospects for the Use of Liquefied Natural Gas as a Motor Fuel for Haul Trucks." E3S Web of Conferences 105 (2019): 03018. http://dx.doi.org/10.1051/e3sconf/201910503018.
Повний текст джерелаАнотація:
The state-of-the-art of efficiency and relevance of the use of liquefied natural gas as a motor fuel for truck operation is considered. A brief analysis of economic and environmental benefits of using liquefied natural gas as a motor fuel is conducted. It is noted that liquefied natural gas seems to be the most promising alternative to oil fuels for high-payload-capacity haul trucks. It is affirmed that for the first time in Russia, in Kuzbass, OOO “Siber-Energo” successfully implemented an integrated project for the production of liquefied natural gas and its consumption in relation to high-payload-capacity BelAZ haul trucks. The data on the assessment of the energy intensity of the process of rock mass hauling by high-payload-capacity BelAZ 75131 haul trucks equipped with on-board cryogenic fuel system are presented. The data show that the energy intensity of the process of rock mass hauling by dual-fuel (gas-diesel) haul trucks is much less than that of diesel-powered haul trucks. It is said that, according to the energy criterion for evaluating the operation, it is more efficient to use haul trucks running on gas-diesel mixture.
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Ananda Wardana, Argi, Diky Eryanto, Farika Tono Putri, Ragil Tri Indrawati, Saifudin Saifudin, and Suroto Munahar. "Desain Opacity Meter dengan Image Processing Berdasarkan Risk Based Measurement." Borobudur Engineering Review 2, no. 1 (March 30, 2022): 23–31. http://dx.doi.org/10.31603/benr.6936.
Повний текст джерелаАнотація:
Gas buang mesin diesel merupakan salah satu penyebab terjadinya pemanasan global. Kandungan gas buang ini diantarnya opacity yang berasal dari polutan warna hitam. Unsur karbon dari pembakaran mesin diesel yang ada dalam opacity sangat berbahaya bagi lingkungan. Untuk itu, opacity hasil pembakaran mesin diesel perlu dikendalikan. Metode pengendalian ini diantaranya dengan melakukan pengukuran gas buang menggunakan opacity meter test bench. Harga sangat mahal, tidak praktis dan memerlukan tempat khusus merupakan kelemahan dari opacity meter test bench. Oleh karena itu, Penelitian ini mengusulkan pengembangan opacity meter berdasarkan digital image processing. Kelebihan alat yang dikembangkan memiliki harga cukup terjangkau, praktis dan proses pengolahan dapat dilakukan secara online. Alat ini bekerja berdasarkan perbedaan warna pada gas buang. Kamera menangkap warna gas buang disimpan dalam file jpg. File jpg selanjutnya dikonvert dalam data digital RGB (Red Green Blue). Selain merubah data digital, penelitian ini merancang program yang dapat bekerja dalam komputer. Opacity meter test bench dapat untuk memvalidasi program yang dirancang. Alat yang dikembangkan diuji pada kendaraan micro bus dan pick up. Hasil uji opacity pada kendaraan micro bus memiliki opacity sebesar 19,9% dan nilai RGB (217, 224, 246). Pada saat yang sama, Uji opacity pada kendaraan pick up menghasilkan opacity 20,9% dan nilai RGB (193, 214, 215). Validasi dengan opacity meter test bench terbaca kurang dari 5%. Untuk itu, Desain opacity meter dengan image processing yang telah dibuat sudah dapat beroperasi dan dapat dikembangkan pada penelitian selanjutnya.
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Wrzosek, Małgorzata, Justyna Maculewicz, Honorata Hafke-Dys, Agnieszka Nowik, Anna Preis, and Grzegorz Kroliczak. "Pitch Processing of Speech: Comparison of Psychoacoustic and Electrophysiological Data." Archives of Acoustics 38, no. 3 (September 1, 2013): 375–81. http://dx.doi.org/10.2478/aoa-2013-0044.
Повний текст джерелаАнотація:
Abstract The present study consisted of two experiments. The goal of the first experiment was to establish the just noticeable differences for the fundamental frequency of the vowel /u/ by using the 2AFC method. We obtained the threshold value for 27 cents. This value is larger than the motor reaction values which had been observed in previous experiments (e.g. 9 or 19 cents). The second experiment was intended to provide neurophysiological confirmation of the detection of shifts in a frequency, using event-related potentials (ERPs). We concentrated on the mismatch negativity (MMN) - the component elicited by the change in the pattern of stimuli. Its occurrence is correlated with the discrimination threshold. In our study, MMN was observed for changes greater than 27 cents - shifts of ±50 and 100 cents (effect size - Cohen’s d = 2.259). MMN did not appear for changes of ±10 and 20 cents. The results showed that the values for which motor responses can be observed are indeed lower than those for perceptual thresholds.
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Zhang, Liang Feng, Duo Chen, and Ming Wei Liu. "Research of Finite Element Simulation for Diesel Intake Port." Applied Mechanics and Materials 34-35 (October 2010): 1415–20. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1415.
Повний текст джерелаАнотація:
In this paper, we study how the geometry of helical intake port of diesel engine influent air flowing conditions to reduce the complexity and difficulty of getting air flowing conditions by experiments. In numerical modeling, we import model of intake port into ANSYS software and do mesh processing on intake port in sections. We then analyze air flow based on working conditions, including difference of pressure between intake and exhaust port and lift-range. We deal with data by post-processing module in ANSYS and obtain velocity distribution and turbulence energy distribution of intake and exhaust port. Finally, we can predict the performance of intake port and find optimizations theoretically.
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Alekperova, N. G., S. A. Aliyeva, A. F. Shahverdiyeva, Yu A. Abdullayeva, and G. S. Mukhtarova. "Commercial oil of Gerbi Absheron oil field." Azerbaijan Oil Industry, no. 9 (September 15, 2020): 55–58. http://dx.doi.org/10.37474/0365-8554/2020-8-55-58.
Повний текст джерелаАнотація:
The article presents the study results of commercial oil from Gerbi Absheron oil field. Conducted research shows that this oil is low sulfur, low paraffin, tarry and heavy. The gasoline fractions obtained can be used as a component of motor gasoline, a feedstock for the catalytic reforming process and to obtain various solvents as well. Light kerosene and diesel fractions are a valuable raw material for the production of jet and diesel fuels of various grades. From residues above 500 °C, commercial oil from Gerbi Absheron oil field without any additives can produce road bitumen grade BNB 50/70 and construction bitumen grade BNB 70/30, which meet basic requirements. According to the study results, the joint processing with the fuel-oil scheme of this oil with Absheron Kyupesi, Pirallahy, Darwin Kupesi and others oils similar to it in terms of their physical-chemical properties can be recommended.
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Buzikov, Shamil, Julia Matushkina, and Oleg Matushkin. "Computer simulation of the dynamics of heat release in diesel cylinders." Journal of Physics: Conference Series 2373, no. 6 (December 1, 2022): 062025. http://dx.doi.org/10.1088/1742-6596/2373/6/062025.
Повний текст джерелаАнотація:
Abstract The relevance of computer mathematical modeling, and processing of initial experimental data for follow-up assessment and analysis of the dynamics of heat release in diesel cylinders is growing every day. The main goal of our research consists in the development of a computer model defining the dynamics of heat release in diesel cylinders when it is running on fuels with different fractional composition, based on the application of the method of the Central Research Diesel Institute by analyzing the experimental data obtained in the form of an indicator diagram. The object of research is the method of processing the obtained experimental indicator diagrams. For this purpose, indicator diagrams of a 4CHN 11.0/12.5 diesel engine of the D-245.5S2 brand were obtained in the nominal mode. To implement the software module, a Java programming procedure was used, including the Java Development Kit where the writing, launching and compilation of Java code took place, the Java Runtime Environment, the Java runtime system, where the software distribution mechanism consisted of an autonomous Java virtual machine, standard Java libraries and tools for configuring it; and the Integrated Development Environment of an integrated development environment, where tools that helped launch, edit, and compile codes that provided thermal characteristics. As a result, an analysis of the available methods for determining the characteristics of the dynamics of diesel heat release was carried out, for the first time an algorithm was developed for performing calculations by the method of the Central Research Diesel Institute and a software module for calculating the characteristics of the dynamics of heat release in diesel cylinders when using fuels of various fractional composition based on experimentally obtained indicator diagrams. The use of the proposed technique and the corresponding software module for processing indicator diagrams, and subsequent analysis of the characteristics of the dynamics of heat release in diesel cylinders provides the required quality of the research results.
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Franken, Matthias K., Daniel J. Acheson, James M. McQueen, Peter Hagoort, and Frank Eisner. "Consistency influences altered auditory feedback processing." Quarterly Journal of Experimental Psychology 72, no. 10 (March 28, 2019): 2371–79. http://dx.doi.org/10.1177/1747021819838939.
Повний текст джерелаАнотація:
Previous research on the effect of perturbed auditory feedback in speech production has focused on two types of responses. In the short term, speakers generate compensatory motor commands in response to unexpected perturbations. In the longer term, speakers adapt feedforward motor programmes in response to feedback perturbations, to avoid future errors. The current study investigated the relation between these two types of responses to altered auditory feedback. Specifically, it was hypothesised that consistency in previous feedback perturbations would influence whether speakers adapt their feedforward motor programmes. In an altered auditory feedback paradigm, formant perturbations were applied either across all trials (the consistent condition) or only to some trials, whereas the others remained unperturbed (the inconsistent condition). The results showed that speakers’ responses were affected by feedback consistency, with stronger speech changes in the consistent condition compared with the inconsistent condition. Current models of speech-motor control can explain this consistency effect. However, the data also suggest that compensation and adaptation are distinct processes, which are not in line with all current models.
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Ubanwa, B., A. Burnette, S. Kishan, and S. G. Fritz,. "Exhaust Particulate Matter Emission Factors and Deterioration Rate for In-Use Motor Vehicles." Journal of Engineering for Gas Turbines and Power 125, no. 2 (April 1, 2003): 513–23. http://dx.doi.org/10.1115/1.1559904.
Повний текст джерелаАнотація:
Recent measurements and modeling of primary exhaust particulate matter (PM) emissions from both gasoline and diesel-powered motor vehicles suggest that many vehicles produce PM at rates substantially higher than assumed in the current EPA PM emission factor model, known as “PART5.” The discrepancy between actual versus modeled PM emissions is generally attributed to inadequate emissions data and outdated assumptions in the PART5 model. This paper presents a study with the objective of developing an in-house tool (a modified PART5 model) for the Texas Natural Resource Conservation Commission (TNRCC) to use for estimating motor vehicle exhaust PM emissions in Texas. The work included chassis dynamometer emissions testing on several heavy-duty diesel vehicles at the Southwest Research Institute (SwRI), analysis of the exhaust PM emissions and other regulated pollutants (i.e., HC,CO,NOx), review of related studies and exhaust PM emission data obtained from literature of similar types of light and heavy-duty vehicle tests, a review of the current PART5 model, and analysis of the associated emission deterioration rates. Exhaust PM emissions data obtained from the vehicle testing at SwRI and other similar studies (covering a relatively large number and wide range of vehicles) were merged, and finally, used to modify the PART5 model. The modified model, which was named PART5-TX1, was then used to estimate new exhaust PM emission factors for in-use motor vehicles. Modifications to the model are briefly described, along with emissions test results from the heavy-duty diesel-powered vehicles tested at SwRI. Readers interested in a detailed understanding of the techniques used to modify the PART5 model are referred to the final project report to TNRCC (Eastern Research Group 2000).