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1
Hoang, Anh Tuan. "The Performance of Diesel Engine Fueled Diesel Oil in Comparison with Heated Pure Vegetable Oils Available in Vietnam." Journal of Sustainable Development 10, no. 2 (March 30, 2017): 93. http://dx.doi.org/10.5539/jsd.v10n2p93.
Повний текст джерелаАнотація:
Pure vegetable oils have the greatest promise for alternative fuels for internal combustion engines beside the depletion of conventional petroleum resources. Among various possible options, pure vegetable oils present promising of greener air substitutes for fossil fuels. Pure vegetable oils, due to the agricultural origin, liquidity, ready availability, renewability, biodegradability are able to reduce the CO2 emissions in the atmosphere. Also, in Vietnam, pure vegetable oils such as soybean oil (SoO100), coconut oil (CO100) and sunflower oil (SuO100) are available. The paper presents the results of using heated pure vegetable oils for diesel engine D243 with power of 80 hp (58.88) kW. The results of determining the power (Ne), specific fuel consumption (SFC) and efficiency (n) are used to evaluate the performance of engine. The results show that, the engine power (Ne) is 10%-15% lower, the SFC of engine D243 using pure vegetable oils is 3%-5% higher and the η is 2.5%-6.2% lower compared to diesel oil (DO). Among the pure vegetable oils, the best performance results for D243 diesel engine are obtained from heated pure sunflower oil up to 135oC.
2
Kozlov, A. V., V. A. Fedorov та K. V. Milov. "Improving the energy efficiency of a 6ChN13/15 gas engine with a Miller cycle by optimizing the valve timing". Trudy NAMI, № 4 (5 січня 2022): 41–52. http://dx.doi.org/10.51187/0135-3152-2021-4-41-52.
Повний текст джерелаАнотація:
Introduction (problem statement and relevance). The object of research in this work is an inline six-cylinder gas engine 6ChN13/15 with a Miller thermodynamic cycle. On the basis of its computer model studies minimization of the specific effective fuel consumption has been reached due to variation study of gas distribution and air supply systems parameters.The purpose of the study was to investigate the parameters regulation effect of gas distribution and air supply systems on the performance of a 6ChN13/15 gas engine with a Miller cycle on the external speed characteristic basing on numerical modeling.Methodology and research methods. The research was carried out by the method of computer simulation. Numerical modeling was made on the basis of data obtained during a full-scale experiment of a 6ChN13/15 gas engine with Miller thermodynamic cycle.Scientific novelty and results. A comparative analysis of a gas engine optimization results has been carried out. The results obtained will be used to create a gas engine and its further optimization by controlling the working process and the air supply system.Practical significance. The results obtained may be of interest to truck car manufacturers and engine specialists.
3
Patidar, Roshani. "A Laboratory Study of Warm Mix Asphalt with Synthetic Zeolite." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 30, 2021): 5118–22. http://dx.doi.org/10.22214/ijraset.2021.36046.
Повний текст джерелаАнотація:
Warm mix asphalt (WMA) is a recent technology used to reduce working temperatures without affecting the property of pavement. warm mix asphalt technology is a find out the optimum temperature of asphalt mixture. A number of WMA processes have been developed in recent days. One of the processes is the use of synthetic zeolite as an additive. A number or try in the laboratory to develop warm mix asphalt and using synthetic zeolite as an additive at a specified mixing and optimum temperature which were obtained after a number of trials. Warm mixing with additive is becoming popular because of mixing at a lower temperature which reduces the fuel usage and emission of hazardous gases consequently decreases the mixing as well as compaction temperature of the mix. Reduction of 20º C to 40º C has documented, such reduction has the obvious benefits of cutting fuel consumption and decreasing the production of greenhouse gases. Also, there will improvement in the performance of the pavement. In the present study, The mix asphalt with aggregate gradation as per MORTH specifications was made with varying binder contents (5%,6% and7%). The zeolite content was 0.3% by weight of aggregate. Stone dust and VG 30-grade Asphalt were used as a binder for the mixes. and the help of laboratory tests to find the physical properties of WMA with synthetic zeolite at optimum temperature. These additives are zeolites, that is, minerals of the aluminosilicate group, the crystalline structure of which contains water bound in a specific way. Its release, at mixed asphalt production temperatures, causes asphalt foaming. It is currently known that zeolites can be used in WMA, including natural and synthetic zeolites obtained using chemical reagents and waste. This review presents the results of studies of WMA technology, including the effects of zeolite addition on asphalt properties and mixes asphalt, as well as related environmental, economic, and technological benefits.
4
Matveev, A. A., I. Kh Israfilov, V. N. Nikishin, and S. M. Andriyanov. "Thermodynamic analysis of working process effective indicators of a diesel engine with an open and closed crankcase ventilation system." Trudy NAMI, no. 4 (January 5, 2022): 22–30. http://dx.doi.org/10.51187/0135-3152-2021-4-22-30.
Повний текст джерелаАнотація:
Introduction (problem statement and relevance). This article provides up-to-date information analysis of the crankcase gases bypass effect from the crankcase ventilation system to the compression ignition engine intake. The paper considers the information on the variants of the crankcase ventilation systems of modern engines. The article reveals the necessity to analyze the engine working process at the design and development stage of a closed crankcase ventilation system. The legislative requirements for the implementation of the ventilation system to ensure safe environmental performance have been indicated. The purpose of the study was to assess both open and closed ventilation system effect on the crankcase space indicators, in particular, on the average specific fuel consumption, with reference to a high-performance automobile engine with compression ignition.Methodology and research methods. Theoretical and computational studies were carried out with the help of mathematical statistics and thermodynamics methods in a one-dimensional setting. The verification of the calculations reliability was carried out by comparing the simulation data and the results the internal combustion engine experimental studies.Scientific novelty and results. A thermodynamic model of a high-performance automobile engine compression ignition V8 CHN 12/13 with an open and closed ventilation system of the crankcase space has been developed. The model made it possible to evaluate the effect of crankcase gases bypass back to the engine cylinder intake.Practical significance. The developed thermodynamic models confirmed the insignificant effect on the working process of the V8 CHN 12/13 engine by bypassing crankcase gases back to the cylinder inlet.
5
Baltacioğlu, Mustafa Kaan, Kadi̇r Aydin, Ergül Yaşar, Hüseyi̇n Turan Arat, Çağlar Conker, and Alper Burgaç. "Experimental Investigation of Performance and Emission Parameters Changes on Diesel Engines Using Anisole Additive." Applied Mechanics and Materials 490-491 (January 2014): 987–91. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.987.
Повний текст джерелаАнотація:
In this study, effect of anisole additive into the diesel fuel on performance and emission parameters of diesel engines was investigated. Instead of structural changes which are more difficult and expensive, development of fuel technologies is preferred to provide reduction on exhaust gas emissions which are harmful to environment and human health. Therefore, in this experimental study, anisole was used as additive into diesel fuel with the volumetric ratio of 1,5%, 3% and 5%. The performance characteristics and exhaust emissions of a four cylinder, four stroke, naturally aspirated, water cooled, direct injection compression ignition engine fueled with modified fuels were analyzed. Engine was subjected constant speed, full load conditions during tests. Engine power, torque, specific fuel consumption, carbon monoxide, nitrogen oxide and carbon dioxide emissions were measured and results were evaluated. Changes in performance parameters were negligible for all ratios of modified fuels except specific fuel consumption. Finally, while carbon monoxide gas emissions were increased with anisole additive, carbon dioxide and nitrogen oxide gas emissions were decreased.
6
Turmina, R., C. R. Altafini, C. A. Costa, G. D. Telli, and J. S. Rosa. "SMALL ENGINE-GENERATOR SET OPERATING ON DUAL-FUEL MODE WITH ETHANOL – CASTOR OIL BLENDS." Revista de Engenharia Térmica 19, no. 2 (December 21, 2020): 17. http://dx.doi.org/10.5380/reterm.v19i2.78609.
Повний текст джерелаАнотація:
The increase in greenhouse gas emissions and our dependence on fossil fuels have motivated researchers to seek the use of renewable fuels in internal combustion engines, which can be produced locally and have clean combustion. The blending method in diesel engines has been recognized as an effective alternative to partially or totally replace the use of diesel fuel. In this regard, this paper studied the operation of a small engine-generator set in mono-fuel mode (diesel fuel - DO) and in dual-fuel mode using hydrous ethanol (HET) and castor oil (OM) blends, indicating a total replacement of diesel fuel. Efficiency, power, specific fuel consumption and gaseous emissions were assessed in a single cylinder diesel cycle engine. The percentages in volume of the HET-OM samples were: 75% - 25%, 70% - 30%, 60% - 40%, and 50% - 50%. The exhaust gas temperature decreased with the mixtures. Carbon monoxide emission decreased 57%, carbon dioxide decreased 9.8%, and nitrogen oxides reduced 19%. It was also observed that the percentage of smoke opacity tends to decrease close to zero with addition of ethanol. Hydrocarbon emissions increased with rising of the OM concentration and the same for the specific fuel consumptions, which was 25.4% higher than diesel fuel. The best fuel conversion efficiency was achieved with the blend HET75-OM25, being 9% higher compared to diesel fuel operation. Power on diesel fuel operation showed a better result keeping stable, with the increase of the compression ratio and the delay of the start of injection. In general, the results confirmed that the performance is comparable to that of diesel fuel, indicating that renewable fuels appear as an alternative for the reduction of the environmental impacts and the reduction of fossil fuels consumption.
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Pexa, M., and K. Kubín. " Effect of rapeseed methyl ester on fuel consumption and engine power." Research in Agricultural Engineering 58, No. 2 (June 13, 2012): 37–45. http://dx.doi.org/10.17221/41/2011-rae.
Повний текст джерелаАнотація:
This paper describes the effect of a mixture of rapeseed methyl ester and diesel oil on fuel consumption and power parameters of tractor engine. The hydraulic dynamometer was used to load the engine of Zetor Forterra 8641 tractor over rear power take-off. The measured tractor is almost new with less than 100 h worked. The measurements were realized for several ratios of diesel oil and rapeseed methyl ester (from pure diesel to pure rapeseed methyl ester). The engine was loaded by the dynamometer in several working points which were predefined by engine speed and its torque. The fuel consumption was measured by the flow meter in each of these points. The reduction of engine’s power parameters and the increase of specific fuel consumption are expected due to the nature of rapeseed methyl ester such as e.g. lower calorific value.
8
Song, Jian Tong, and Chun Hua Zhang. "Comparison of Performance of a Diesel Engine Fueled with Soybean Biodiesel." Applied Mechanics and Materials 341-342 (July 2013): 1408–11. http://dx.doi.org/10.4028/www.scientific.net/amm.341-342.1408.
Повний текст джерелаАнотація:
Biodiesel as a renewable and environmentally friendly alternative fuel derived from natural fats or vegetable oils has better lubricating properties and much higher cetane ratings than today's lower sulfur diesel fuels. It is considered as an attractive alternative to replace diesel fuels. In order to investigate application of biodiesel on vehicle diesel engines, the power and fuel economies performances of a diesel fueled soybean biodiesel with different blending ratios were tested under different engine loads and speeds. Experimental results show that, compared with diesel fuel, with increase in the biodiesel in the blends, the brake power and torque, and the brake specific energy consumption increase but the fuel consumption per hour and brake specific fuel consumption decrease.
9
Saibuatrong, Worayut, and Thumrongrut Mungcharoen. "Energy Consumption and Greenhouse Gas Emission of Alternative Vehicle Fuels in Thailand Using Well to Wheel Assessment." Advanced Materials Research 524-527 (May 2012): 2538–44. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.2538.
Повний текст джерелаАнотація:
Energy consumption and Greenhouse Gas (GHG) of major Alternative vehicle fuels (AVFs) in Thailand are estimated and compared with conventional fuels by means of full Life Cycle Assessment (LCA). The tool utilized here is the Well-to-Wheels (WtW) module of own model covering the entire lifecycle including: raw materials cultivation (or feedstock collection); fuel production; transportation and distribution; and application in automobile engines (ICE and hybrid engine), compared with conventional petroleum-based gasoline and diesel pathways. The model is based on Thailand’s national conditions with Tsinghua-CA3EM model. Part of this model structure has been adjusted to Thailand specific situations. Therefore, a majority of the parameters have been modified with local Thailand data. Results showed that the all alternative vehicle fuels can reduce energy consumption and GHG emissions compared to conventional fuels. Hybrid ICE engine to reduce energy consumption and GHG emissions when compared to the ICE engine. Biofuels-ICE engine, especially bioethanol from molasses, had the highest reduce energy consumption and GHG emissions. LPG- Hybrid ICE engine had the highest reduce energy consumption.
10
Zhang, Yanhui, Yunhao Zhong, Jie Wang, Dongli Tan, Zhiqing Zhang, and Dayong Yang. "Effects of Different Biodiesel-Diesel Blend Fuel on Combustion and Emission Characteristics of a Diesel Engine." Processes 9, no. 11 (November 7, 2021): 1984. http://dx.doi.org/10.3390/pr9111984.
Повний текст джерелаАнотація:
In this paper, biodiesel was used as an alternative fuel to investigate the combustion and emission characteristics of a four-stroke diesel engine, in terms of cylinder pressure, heat release rate, cylinder temperature, brake thermal efficiency, brake specific fuel consumption, nitrogen oxide, soot, carbon monoxide, and hydrocarbon. Firstly, a diesel engine cylinder model was developed by AVL-Fire software coupled with CHEMKIN code to simulate the injection and combustion of biodiesel with a kinetic mechanism with 106 species and 263 reactions. Then, the simulation model was validated by experimental results under 100% and 50% load conditions and used to simulate the combustion process of a diesel engine fueled with pure diesel, biodiesel, and biodiesel–diesel blends with 10%, 20%, 30% biodiesel by volume, respectively. The results showed that the brake specific fuel consumption increased with the increase of mixed biodiesel ratio. The brake specific fuel consumptions of B10, B20 and B30 increased by 1.1%, 2.3% and 3.3%, respectively, compared with that of D100. The combustion and emission characteristics of the diesel engine are improved. Therefore, biodiesel can be used as an alternative fuel for the diesel engine. The diesel–biodiesel fuel can improve the combustion and emission characteristics of the diesel engine.
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Rezvan, Omid, Seyed Tabatabaei, and Marziyeh Yoosefi. "A Signal Timing Method to Reduce the Emissions in Arterials (Case Study: Enghelab Avenue in Ahvaz)." Current World Environment 10, Special-Issue1 (June 28, 2015): 15–20. http://dx.doi.org/10.12944/cwe.10.special-issue1.03.
Повний текст джерелаАнотація:
Actuated signal control is very efficient for isolated intersections, but along arterials it lacks the means to synchronize signals, leading to high delays and frequent stops which produce high emissions and fuel consumption. This research aims to use new paradigms based on actuated control that can lead signals to synchronize with their neighboring intersections resulting in reduction of emissions, fuel consumption and travel time in the arterials. In this research, traffic signal coordination software Synchro 8 was used to coordinate the signals on closely spaced intersections in Enghelab avenue in Ahvaz. In order to evaluate the effectiveness of proposed control logic, a simulation test bed was developed in the traffic simulation model SimTraffic 8 and 3D viewer 8.The Proposed logic resulted in total travel time, emissions and fuel consumption reductions of up to 25.6 %, 12.61% and 16.4% respectively compared to current condition logic in Enghelab avenue.
12
Yamik, Hasan. "An investigation of effect of biodiesel and aviation fuel jeta-1 mixtures performance and emissions on diesel engine." Thermal Science 18, no. 1 (2014): 239–47. http://dx.doi.org/10.2298/tsci130410007y.
Повний текст джерелаАнотація:
Biodiesel is an alternative fuel for diesel engines which doesn?t contain pollutants and sulfur; on the contrary it contains oxygen. In addition, both physical and chemical properties of sunflower oil methyl ester (SME) are identical to diesel fuel. Conversely, diesel and biodiesel fuels are widely used with some additives to reduce viscosity, increase the amount of cetane, and improve combustion efficiency. This study uses diesel fuel, SME and its mixture with aviation fuel JetA-1 which are widely used in the aviation industry. . Fuel mixtures were used in 1-cylinder, 4-stroke diesel engine under full load and variable engine speeds. In this experiment, engine performance and emission level are investigated. As a conclusion, as the JetA-1 ratio increases in the mixture, lower nitrogen oxide (NOx) emission is measured. Also, specific fuel consumption is lowered.
13
Thangaraj, Suja, and Nagarajan Govindan. "Consequences of suplementing the HHO gas and CNG with EGR on diesel engine characteristics." Thermal Science, no. 00 (2022): 58. http://dx.doi.org/10.2298/tsci211119058t.
Повний текст джерелаАнотація:
Water electrolyzed hydroxyl gas (HHO or Brown gas) and Compressed Natural Gas (CNG) are the important and promising alternatives to the pure fossil fuels. The global concern is about greenhouse gas emission in the environment and ambient air pollution steered by mass consumption of fossil fuels in automobile industries and power sectors. In this study, the combustion, performance and emission characteristics of HHO gas and CNG mixtures supplied to intake manifold of CI (compression ignition) engine using diesel as a pilot fuel are studied. The same investigations are repeated with various EGR (Exhaust Gas Recirculation) proportions to study the impact of EGR on multi fuel mode (diesel+HHO gas+CNG) in a diesel engine. The multi fueled engine performance, combustion and emission parameters are presented and compared with graph and analytical discussion. The results indicated that at full load, the NOx emission decreased by 4% (without EGR), 18% (with 10% EGR) and smoke density decreased by 78% with multi fuel mode comparing to the pure diesel operation at constant speed of 1500rpm. Also more enhanced performance by improving the brake thermal efficiency (BTE) by 17%, reducing the brake specific energy consumption (BSEC) by 19%, resulted better fuel economy, and power due to better combustion.
14
Nassir, Abdulkhodor Kathum, and Haroun A. K. Shahad. "Experimental Study of a Diesel Engine Performance Fueled with Different Types of Nano-Fuel." Journal of University of Babylon for Engineering Sciences 26, no. 7 (July 1, 2018): 36–57. http://dx.doi.org/10.29196/jubes.v26i7.1485.
Повний текст джерелаАнотація:
The aim of this experimental work is to study the effect of nanoparticles added to diesel fuel on engine performance characteristic. Nano fuels are prepared by adding Al2O3 or TiO2, both with particle size less than 45nm of diesel fuel. Four doses of each type namely (25, 50, 100 and 150) ppm are prepared. These nanoparticles are blended with diesel fuel in varying volume fraction by the means of an electric mixer and an ultrasonicator. The Nano fuels are (DF+Al2O3) and (DF+TiO2). Physicochemical properties of nano fuels are measured and compared with these of neat diesel. The study shows that the addition of nanoparticles to diesel fuel improves its physical properties such as cetane number, thermal conductivity and viscosity. The influence of nanoparticles addition is very clear on the engine performance. The results show that the performance parameters are improved for example, brake thermal efficiency is increased from 19.4% for diesel to 21% and 25% for DF+Al2O3 and DF+TiO2 respectively, the brake specific fuel consumption (BSFC) is decreased by 8% and 20% for DF+Al2O3 and DF+TiO2 respectively, the brake specific energy consumption (BSFC) is decreased by 8% and 20% for DF+Al2O3 and DF+TiO2 respectively at 25ppm and 75% load. The exhaust gas temperature is 382°C for pure diesel while it is 417°C for DF+Al2O3 and 353°C for DF+TiO2. The peak pressure for pure diesel is 62 bar and it increases with DF+Al2O3 to 66.2 bar as for DF+TiO2 the peak pressure decreases to 57.2 bar at full load and 150ppm.
15
CHOI, SEUNG-HUN, and YOUNG-TAIG OH. "ANALYSIS OF OXYGENATED COMPONENT (BUTYL ETHER) AND EGR EFFECT ON A DIESEL ENGINE." International Journal of Modern Physics B 24, no. 15n16 (June 30, 2010): 2844–49. http://dx.doi.org/10.1142/s0217979210065738.
Повний текст джерелаАнотація:
Potential possibility of the butyl ether (BE, oxygenates of di-ether group) was analyzed as an additives for a naturally aspirated direct injection diesel engine fuel. Engine performance and exhaust emission characteristics were analyzed by applying the commercial diesel fuel and oxygenates additives blended diesel fuels. Smoke emission decreased approximately 26% by applying the blended fuel (diesel fuel 80 vol-% + BE 20vol-%) at the engine speed of 25,000 rpm and with full engine load compared to the diesel fuel. There was none significant difference between the blended fuel and the diesel fuel on the power, torque, and brake specific energy consumption rate of the diesel engine. But, NOx emission from the blended fuel was higher than the commercial diesel fuel. As a counter plan, the EGR method was employed to reduce the NOx . Simultaneous reduction of the smoke and the NOx emission from the diesel engine was achieved by applying the BE blended fuel and the cooled EGR method.
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Baytorun, Abdullah Nafi, Zeynep Zaimoğlu, Adil Akyüz, Sait Üstün, and Ali Çaylı. "Comparison of Greenhouse Fuel Consumption Calculated Using Different Methods with Actual Fuel Consumption." Turkish Journal of Agriculture - Food Science and Technology 6, no. 7 (July 17, 2018): 850. http://dx.doi.org/10.24925/turjaf.v6i7.850-857.1807.
Повний текст джерелаАнотація:
Heat requirements in greenhouses are calculated considering greenhouse type, the climate of the region and temperatures desirable for plant growth. Calculations made according to daily average temperature values lead to misleading results during periods when temperatures are high and under conditions when greenhouse temperature is kept low. For this reason, determining heat requirements according to hourly values provides more accurate results. Calculations of heat requirements in greenhouses are based on the difference between the desired temperature in the greenhouse and the outside temperature. However, in unheated greenhouses and those that are not ventilated until a specific temperature, actual temperature values are higher than outside temperatures. For this reason, heat requirement calculations should be made according to hourly climate values taking into account actual temperature in the greenhouse and temperature rise resulting from greenhouse specifications. This study aims to compare the amounts of fuel consumed under real conditions with fuel consumption calculated with conventional methods using inside and outside temperature difference and considering the above mentioned inconveniences. Daily fuel consumption calculated theoretically differs from actual consumption values. However, in comparisons based on fuel amounts consumed on an annual basis, best results were obtained when temperature rise in the greenhouse was taken into consideration. In the event that temperature rise is taken into consideration, a 3% difference is observed between calculated fuel consumption and actual fuel consumption.
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Sharudin, Hazim, Sharzali Che Mat, Muhammad Arif Ab Hamid Pahmi, Nor Iswadi Ismail, Mohd Fahmi Md Salleh, Fadhlin Nur Aini Rahman Shah, and Nik Rosli Abdullah. "Effect of POME Additive in Algae-Diesel Fuel Blends on Fuel Consumptions and Emissions Characteristics of a Single Diesel Engine." Pertanika Journal of Science and Technology 30, no. 2 (March 11, 2022): 1309–26. http://dx.doi.org/10.47836/pjst.30.2.25.
Повний текст джерелаАнотація:
In the present investigation, the effects of Palm Oil Methyl Esters (POME) additives on fuel consumptions and exhaust emissions of a single-cylinder diesel engine fueled with algae-diesel fuel blends were studied. Five fuel blends were prepared based on volume percentages which are D100 (diesel fuel), 2.5AO97.5D (2.5% algae oil, 97.5% diesel fuel), 2.5POME2.5AO95D (2.5% POME, 2.5% algae oil, 97.5% diesel fuel), 3.5POME2.5AO94D and 4.5POME2.5AO93D. Next, fuel properties which are density, kinematic viscosity, and calorific value of all the blended fuels, were measured and analyzed. Engine tests were conducted on a single-cylinder diesel engine at a constant engine speed of 1500 rpm at various engine loads. The brake specific fuel consumption (BSFC), exhaust emissions of oxides of nitrogen (NOx), carbon monoxide (CO), and carbon dioxide (CO2) were analyzed together during the experimental work. The obtained results for BSFC show that all fuel blends decreased with increasing engine load. The results obtained revealed that NOX and CO2 emissions increase, whereas CO emissions decrease with increasing engine load. The present work suggests 4.5POME2.5AO93D algae-diesel fuel blends with POME additive as a suitable eco-friendly alternative fuel as it gives better emission results compared to other fuel blends.
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Norwazan, A. R., A. K. Zulkiffli, and M. S. Abd Rahim. "Experimental Evaluation of Cooking Oil (Carotene Oil) as Biodiesel Blended on Compression Ignition (CI) Engine." Applied Mechanics and Materials 110-116 (October 2011): 2234–38. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.2234.
Повний текст джерелаАнотація:
Biodiesel is an alternative fuels for diesel engine with the blending process by chemically combination of vegetable or animal oil and diesel fuels. It is proved that the biodiesel can be used without any modification on the compression ignition (CI) engine. In this study, the cooking oil of namely carotene is used to produce the biodiesel blend fuels in various percentages. The biodiesel blend and diesel fuel are evaluated to analyze the engine performances in 4 cylinder inline CI engine. The characteristics of engine performances namely brake power output and brake specific fuel consumption are measured with various loads applied. The fuel properties of biodiesel blend are investigated namely density, dynamics viscosity and kinetic viscosity. The experimental results show that the performance of biodiesel B10 is better than it counterpart namely diesel in terms of brake power output and brake specific fuel consumption (BSFC).
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Jílek, L., R. Pražan, V. Podpěra, and I. Gerndtová. "The effect of the tractor engine rated power on diesel fuel consumption during material transport." Research in Agricultural Engineering 54, No. 1 (March 3, 2008): 1–8. http://dx.doi.org/10.17221/710-rae.
Повний текст джерелаАнотація:
The authors of this paper determined in a field measurement how the change of the tractor engine power in a tractor-trailer combination affects the diesel fuel consumption related to the unit of transport output (l/tkm) and the transport performance (t/h) in the conditions of a mountainous region. Transport combinations (tractor – trailer) were compared that were formed by a tipping trailer connected to three tractors with different engine powers when passing allong a route with the gradient of 0°–5.5°. It is obvious from the results of these measurements that the diesel fuel consumption differed by up to 27% in individual combinations. The lowest specific consumption on the measured route was found in the combination with the tractor with the engine rated power of 50 kW (0.037 to 0.077 l/tkm), the highest consumption with the tractor with the rated engine power of 114 kW (0.056 to 0.093 l/tkm). The lowest transport performance on the measured route was found in the combination with the tractor with the engine rated power of 63 kW (19.37 t/h), the highest performance with the tractor with the rated engine power of 114 kW (43.42 t/h).
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Faradila, Uswatun, Lukas Kano Mangalla, and Budiman Sudia. "Pengaruh Pemanasan Bahan Bakar Terhadap Laju Konsumsi Bahan Bakar Pada Sepeda Motor Sistem Karburator." Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin 7, no. 1 (April 3, 2022): 1. http://dx.doi.org/10.55679/enthalpy.v7i1.24494.
Повний текст джерелаАнотація:
The increasing human need for transportation requires maksimum engine performance and efficient fuel consumptiton on carburetor system motorcycles. In an effort to improve engine performance it is done various ways one of which is by preheating the fuel. This study aims to determine engine performance through preheating the fuel. This research was conducted on a motorcycle with a carburetor system by providing treatment without heating and by heating the fuel with a fuel preheat temperature of 60oC, 80oC, and 90oC at 2500 rpm engine speed and the fuel used is gasoline and pertamax. In this study, fuel consumption increased at 90oC by 0,38 (Kg/hour), at 80oC and 60oC decreased by 0,30 (Kg/hour) and 0,21 (Kg/hour). Specific fuel consumption at temperature 90oC increased by 0,195 (Kg/kWh), at 80oC and 60oC decreased by 0,155 (Kg/kWh) and 0,106 (Kg/kWh) in gasoline, while in pertamax fuel, fuel consumption more efficient than gasoline, namely at a temperature of 90oC increased by 0,33 (Kg/hour), at 80oC and 60oC decreased by 0,22 (Kg/hour) and 0,19 (Kg/hour) while the specific fuel consumption at a temperature of 90oC increased by 0,170 (Kg/kWh), at 80oC and 60oC it decreased by 0,113 (Kg/kWh) and 0,095 (Kg/kWh).Kata kunci: Engine Performance, Preheating of fuel, Temperature Variations
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Hossain, Abul, and Abdul Hussain. "Impact of Nanoadditives on the Performance and Combustion Characteristics of Neat Jatropha Biodiesel." Energies 12, no. 5 (March 10, 2019): 921. http://dx.doi.org/10.3390/en12050921.
Повний текст джерелаАнотація:
Jatropha biodiesel was produced from neat jatropha oil using both esterification and transesterification processes. The free fatty acid value content of neat jatropha oil was reduced to approximately 2% from 12% through esterification. Aluminium oxide (Al2O3) and cerium oxide (CeO2) nanoparticles were added separately to jatropha biodiesel in doses of 100 ppm and 50 ppm. The heating value, acid number, density, flash point temperature and kinematic viscosity of the nanoadditive fuel samples were measured and compared with the corresponding properties of neat fossil diesel and neat jatropha biodiesel. Jatropha biodiesel with 100 ppm Al2O3 nanoparticle (J100A100) was selected for engine testing due to its higher heating value and successful amalgamation of the Al2O3 nanoparticles used. The brake thermal efficiency of J100A100 fuel was about 3% higher than for neat fossil diesel, and was quite similar to that of neat jatropha biodiesel. At full load, the brake specific energy consumption of J100A100 fuel was found to be 4% higher and 6% lower than the corresponding values obtained for neat jatropha biodiesel and neat fossil diesel fuels respectively. The NOx emission was found to be 4% lower with J100A100 fuel when compared to jatropha biodiesel. The unburnt hydrocarbon and smoke emissions were decreased significantly when J100A100 fuel was used instead of neat jatropha biodiesel or neat fossil diesel fuels. Combustion characteristics showed that in almost all loads, J100A100 fuel had a higher total heat release than the reference fuels. At full load, the J100A100 fuel produced similar peak in-cylinder pressures when compared to neat fossil diesel and neat jatropha biodiesel fuels. The study concluded that J100A100 fuel produced better combustion and emission characteristics than neat jatropha biodiesel.
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Kazakov, Petar, Atanas Iliev, and Emil Marinov. "DIESEL ENGINE OPERATION IN USE OF FUEL WITH ADDITIVES." International Conference on Technics, Technologies and Education, no. 1 (2018): 18–24. http://dx.doi.org/10.15547/10.15547/ictte.2018.01.003.
Повний текст джерелаАнотація:
Over the decades, more attention has been paid to emissions from the means of transport and the use of different fuels and combustion fuels for the operation of internal combustion engines than on fuel consumption. This, in turn, enables research into products that are said to reduce fuel consumption. The report summarizes four studies of fuel-related innovation products. The studies covered by this report are conducted with diesel fuel and usually contain diesel fuel and three additives for it. Manufacturers of additives are based on already existing studies showing a 10-30% reduction in fuel consumption. Comparative experimental studies related to the use of commercially available diesel fuel with and without the use of additives have been performed in laboratory conditions. The studies were carried out on a stationary diesel engine СМД-17КН equipped with brake КИ1368В. Repeated results were recorded, but they did not confirm the significant positive effect of additives on specific fuel consumption. In some cases, the factors affecting errors in this type of research on the effectiveness of fuel additives for commercial purposes are considered. The reasons for the positive effects of such use of additives in certain engine operating modes are also clarified.
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Kaisan, Muhammad Usman, Ibrahim Umar Ibrahim, and Dhinesh Balasubramanian. "ENVIRONMENTAL AND PERFORMANCE EVALUATION OF BINARY AND TERNARY BLEND RATIOS OF BIODIESEL ON COMPRESSION IGNITION ENGINE." FUDMA JOURNAL OF SCIENCES 5, no. 3 (November 3, 2021): 198–206. http://dx.doi.org/10.33003/fjs-2021-0503-674.
Повний текст джерелаАнотація:
Despite the dependable attempts by researchers in the field of sustainable fuels, engines, and emissions, there is a research gap in the area of variations of biodiesel blend ratios with specific fuel consumption of a compression ignition engine as well as the brake thermal efficiency of engines. Therefore, this article has investigated how the blending ratio of biodiesel from jatropha, neem and cotton seeds oil mixed with petrol diesel affects the brake specific fuel consumption of a compression ignition engine and likewise the brake thermal efficiency of the binary and multi-blends of biodiesel with diesel. Three different biodiesel samples were blended with diesel; the biodiesel was achieved through an alkali transesterification reaction. The blending was done for each biodiesel with diesel alone, and that of mixed biodiesel blends with fossil diesel in a definite ratio. The blends were run on a stationary four-cylinder compression ignition engine with an exhaust analyzer to detect CO, NOx, and exhaust temperature ranges. It was recorded that, the combustion of the blends at an engine speed of 1500 rpm, between the Jatropha blend ratios 25 to 30 %, the brake specific fuel consumptions (bsfc) decrease further as against the initial trend shown at 1000 rpm. At 2000 rpm engine speed, the Neem, as well as the mixed biodiesel blends, show entirely different patterns. 25% Jatropha blend gives the best overall performance
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Chen, Xinbo, Jian Zhong, Feng Sha, and Zaimin Zhong. "Research on innovative plug-in hybrid electric vehicle comprehensive energy consumption evaluation method based on statistic energy consumption." Science Progress 104, no. 4 (October 2021): 003685042110502. http://dx.doi.org/10.1177/00368504211050284.
Повний текст джерелаАнотація:
The plug-in hybrid electric vehicle not only has the advantages of low emissions from electric vehicles, but also takes advantage of the high specific energy and high specific power of petroleum fuels, which can significantly improve the emissions and fuel economy of traditional vehicles. Studying its comprehensive energy consumption evaluation method is an important part of analyzing the economics of plug-in hybrid electric vehicles. This paper first puts forward the concept of statistical energy consumption and then proposes an innovative calculation method of plug-in hybrid electric vehicle energy consumption based on statistical energy consumption by referring to and analyzing the energy consumption test regulations of the United States, the European Union, and China. Given the two use case assumptions of charge depleting mode priority and charge sustaining mode only, considering the fuel consumption and the energy consumption that converts electrical energy consumption to fuel consumption, the probability density function of travel mileage distribution and energy consumption is derived. Finally, the interpretation and analysis of statistical energy consumption evaluation results are carried out.
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Teoh, Yew Heng, Heoy Geok How, Thanh Danh Le, and Huu Tho Nguyen. "Alexandrian Laurel for Biodiesel Production and its Biodiesel Blends on Performance, Emission and Combustion Characteristics in Common-Rail Diesel Engine." Processes 8, no. 9 (September 12, 2020): 1141. http://dx.doi.org/10.3390/pr8091141.
Повний текст джерелаАнотація:
A two-step transesterification process was employed in the biodiesel production from non-edible Alexandrian Laurel. The key physicochemical properties of the Alexandrian Laurel biodiesel (ALB), diesel and blends of both fuels were compared and analyzed. The effects of blending biodiesel (ALB) and petroleum diesel on engine performance, combustion and exhaust emissions were investigated in a turbocharged, high-pressure common-rail diesel engine under six different speed operations and at full load conditions. The test fuels comprised a conventional diesel fuel and four different fuel blends of ALB. The results showed relatively close physicochemical properties of ALB and its blends when compared with petroleum diesel. However, the use of ALB-blended fuel resulted in penalties engine brake power, brake specific fuel consumption (BSFC) despite slightly improved brake thermal efficiency (BTE). Brake specific nitrogen oxide (BSNOx) was found worsened with higher ALB content in the blends. Nonetheless, consistent improvements in brake specific carbon monoxide (BSCO), brake specific carbon dioxide (BSCO2), and smoke were noticed when ALB blends were used. Additionally, ALB blends contributed to reduction in peak combustion pressure, peak heat release rate (HRR) and combustion duration. In general, the findings suggest satisfactory operation with ALB biodiesel-diesel blends in an unmodified diesel engine.
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Suripto. "Poverty And Consumption Of Fossil Energy; Case Study In Yogyakarta Special Province." E3S Web of Conferences 73 (2018): 01005. http://dx.doi.org/10.1051/e3sconf/20187301005.
Повний текст джерелаАнотація:
Poverty occurs because of minimum living standards. Revenues occur through the production process. This study wants to show how the consumption of fossil fuels, educational investment and physical capital in the process of economic growth affect the status of low-income families. Solow growth models will be used to explain the impact of fossil fuel consumption, education investment, and physical capital, Yogyakarta Special Province on poverty. The study was conducted by looking at the use of fossil fuels, investment of educators, and physical capital performed by households in Yogyakarta Special Province. The total sample of 3606 households obtained from raw Susenas 2013 data. Estimation model with Logit regression approach.
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Kobernik, V. S. "Fuel consumption of thermal power technologies under maneuvering modes." Problems of General Energy 2020, no. 4 (December 22, 2020): 45–49. http://dx.doi.org/10.15407/pge2020.04.045.
Повний текст джерелаАнотація:
A characteristic feature of the present day development of power engineering lies in the increase in the unevenness of power systems schedules. The structure of generating powers of Ukrainian energy engineering is overloaded with basic powers and characterized by a sharp deficit of maneuvering wanes. To cover the uneven load of the power system during the operation of existing and construction of new power plants, it is necessary to take into account the possibility of their operation under maneuvering modes. This paper determines the influence of work of power plants i under maneuvering modes on the specific consumption of conditional fuel on the released electric energy at working on gas or coal fuel. Fuel consumption for starting of a unit depends on its type and downtime in reserve. The use of steam–and–gas facilities and gas turbines helps to enhance the maneuverability of power plants. Alternative options for the development of thermal energy are the introduction of gas–piston power plants and power units with fluidized–bed boilers. We present formulas for the calculations of fuel consumption on by power units for start–ups and specific consumptions depending on the load and degree of their involvement to regulating loads for different thermal energy technologies: steam–turbine condensation and district heating power units; steam–and–gas and gas turbine plants; gas piston installations; power units with fluidized bed boilers. For enhancing the maneuverability of power plants, working on fossil fuels, their modernization and renewal of software are necessary. Quantitative assessment of the efficiency of power units and separate power plants during their operation under variable modes is important for forecasting the structure of generating capacities of power systems, the need to introduce peak and semi–peak capacities, the choice of the most profitable composition of operating equipment at different schedules of electrical loads Keywords: thermal power, power unit, maneuverable mode, electrical load, specific fuel consumption
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Kazakov, Petar, Atanas Iliev, and Emil Marinov. "DIESEL ENGINE OPERATION IN USE OF FUEL WITH ADDITIVES." International Conference on Technics, Technologies and Education, no. 1 (2018): 18–24. http://dx.doi.org/10.15547/ictte.01.003.
Повний текст джерелаАнотація:
Over the decades, more attention has been paid to emissions from the means of transport and the use of different fuels and combustion fuels for the operation of internal combustion engines than on fuel consumption. This, in turn, enables research into products that are said to reduce fuel consumption. The report summarizes four studies of fuel-related innovation products. The studies covered by this report are conducted with diesel fuel and usually contain diesel fuel and three additives for it. Manufacturers of additives are based on already existing studies showing a 10-30% reduction in fuel consumption. Comparative experimental studies related to the use of commercially available diesel fuel with and without the use of additives have been performed in laboratory conditions. The studies were carried out on a stationary diesel engine СМД-17КН equipped with brake КИ1368В. Repeated results were recorded, but they did not confirm the significant positive effect of additives on specific fuel consumption. In some cases, the factors affecting errors in this type of research on the effectiveness of fuel additives for commercial purposes are considered. The reasons for the positive effects of such use of additives in certain engine operating modes are also clarified. Key words: diesel fuel, diesel fuel additives, engine efficiency.
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Marques, Crístofer, Jean-D. Caprace, Carlos Belchior, and Alberto Martini. "An Approach for Predicting the Specific Fuel Consumption of Dual-Fuel Two-Stroke Marine Engines." Journal of Marine Science and Engineering 7, no. 2 (January 22, 2019): 20. http://dx.doi.org/10.3390/jmse7020020.
Повний текст джерелаАнотація:
Increasing environmental demands, alongside the planned penetration of natural gas as marine fuel, have rendered dual-fuel engines as an attractive prime mover alternative. In this context, knowing the specific fuel consumption is essential to selecting the most efficient engine. The specific fuel consumption can be approached by simulation models with varying levels of complexity that are either implemented by basic programming languages or simulated by dedicated packages. This study aims to develop a simplified model to predict the specific fuel consumption of dual-fuel two-stroke marine engines driving fixed or controllable pitch propellers. The model relies on clear trends approachable by polynomials that were revealed by normalizing specific fuel consumption. This model requires only the value of specific fuel consumption at a nominal maximum continuous rating to predict the engine consumption at any specified rating, including at partial engine load. The outcome of the study shows that the maximum deviations regarding the two simulated engines did not exceed −3.6%. In summary, the proposed model is a fast and effective tool for optimizing the selection of dual-fuel, two-stroke Diesel engines regarding fuel consumption.
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Kirthivasan, A., J. Amitesh Jain, Akhilnandh Ramesh, and D. Ebenezer. "Effect of Ethanol on the Fuel Consumption of a Two Stroke Unmodified Commercial Petrol Engine." Applied Mechanics and Materials 787 (August 2015): 756–60. http://dx.doi.org/10.4028/www.scientific.net/amm.787.756.
Повний текст джерелаАнотація:
Alternative fuel source such as ethanol possess great potential to replace conventional fuels such as petrol and diesel. There has been a great increase in the usage of such fuels in the developing world, of late, with many countries having already mandated the usage of ethanol blended petrol. In developing countries, two stroke internal combustion engines continue to be used for powering agricultural implements and auto rickshaws. This paper presents the experimental investigations carried out on the usage of petrol blended with different proportions of ethanol by volume (5%, and 10%) as a fuel for an unmodified and used 100cc two stroke SI engine. The objectives of the experimental investigations are to determine whether ethanol blended petrol can be used as a suitable fuel for the commonly used two stroke internal combustion engine without any modifications. Tests were carried out on the engine, with petrol as the fuel initially and then with ethanol blended petrol with increasing proportion of ethanol. The total fuel consumption rate seemed to increase upon addition of ethanol. However, the brake specific fuel consumption remained fairly constant. The fact that brake specific fuel consumption varies only marginally indicate that ethanol can be used as a substitute for petrol, as a fuel.
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Ton, Phuong Nu Thanh, Giang Hoang Le, Hien Thi To, and Takenaka Norimichi. "Evaluating brake specific fuel consumption and gas emissions from palm biodiesel fuel used in diesel generator." Science and Technology Development Journal 18, no. 2 (June 30, 2015): 24–36. http://dx.doi.org/10.32508/stdj.v18i1.1130.
Повний текст джерелаАнотація:
This study evaluated brake specific fuel consumption and regulated emissions from palm biodiesel fuel (palm BDF) used on diesel generators. The tests were performed at an idle and high load with different mixing rate blends between diesel fuel and palm BDF (0 %, 5 %, 10 %, 15 %, 20 %, 50 %, 100 % which was called B0, B5, B10, B15, B20, B50 and B100) respectively. The results showed at each loading mode, brake specific fuel consumption increased when the volume of palm BDF rose in the blends. At the idle mode, brake specific fuel consumption increased 1.32 %, 1.8 %, 2.8 %, 3.74 %, 5.61 %, 6.54 % for B5, B10, B15, B20, B50, B100, compared with B0. Similarly at the high load mode, brake specific fuel consumption improved 1.51 %, 1.86 %, 2.18 %, 4.78 %, 5.36 %, 6.76 % for B5, B10, B15, B20, B50, B100, compared with B0. In both two load modes, when the volume of palm BDF in the fuel blends grew gradually, the concentration of CO, SO2 and CxHy emission reduced while the concentration of NO and NO2, CO2 went up. Emission factors of CO, SO2 and CO2 at high load are higher than those at an idle load, regardless the ratio of palm BDF to diesel fue. Conversely, emission factors of NO, NO2 at high load are higher.
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Roux, J. A., N. Shakya, and J. Choi. "Scramjet: Minimum Thrust-Specific Fuel Consumption with Material Limit." Journal of Thermophysics and Heat Transfer 27, no. 2 (April 2013): 367–68. http://dx.doi.org/10.2514/1.t4045.
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Popa, Gabriel, and Marius Alin Gheți. "Locomotive Diesel Engine Operation with Optimal Specific Fuel Consumption." Procedia Manufacturing 46 (2020): 440–44. http://dx.doi.org/10.1016/j.promfg.2020.03.064.
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Rückauf, Jörg, and Boris Lerch. "Friction optimisation and its effect on specific fuel consumption." MTZ worldwide 70, no. 7-8 (July 2009): 42–47. http://dx.doi.org/10.1007/bf03226969.
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KROPIWNICKI, Jacek. "Estimation of vehicle operational fuel consumption." Combustion Engines 142, no. 3 (July 1, 2010): 48–58. http://dx.doi.org/10.19206/ce-117135.
Повний текст джерелаАнотація:
A method of a reference fuel consumption calculation for a registered operating conditions has been presented in this work. The operating conditions have been described using specific energy consumption, which takes into account both an influence of external conditions and driver’s style of driving. Results of experiments performed on the territory of the city of Gdańsk in normal urban traffic have been presented. The new concept of estimation of vehicle drive system efficiency and related examples have been also included.
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Sudarmanta, Bambang, Sudjud Darsopuspito, and Djoko Sungkono. "Influence of Bioethanol-Gasoline Blended Fuel on Performance and Emissions Characteristics from Port Injection Sinjai Engine 650 cc." Applied Mechanics and Materials 493 (January 2014): 273–80. http://dx.doi.org/10.4028/www.scientific.net/amm.493.273.
Повний текст джерелаАнотація:
Performance and emissions characteristics from port injection SINJAI engine 650 cc operating on bioethanol-gasoline blended fuels of 0%, 5%, 10%, 15% and 20% were investigated on water brake dynamometers with power capacity 120 hp. The properties of bioethanol were measured based on American Society for Testing Materials (ASTM) standards. Fuel consumption was measured by the time fuel consumption per 25 cc of fuel in a measuring glass whereas combustion air consumption was measured using an air flow meter. The emission parameters, exhaust gas temperature and air fuel ratio were measured using STARGAS exhaust gas analyzer. The increase of bioethanol content will increases the engine performance and reduces pollutan emission. The highest engine performance produced by E15 blended fuel with increased torsi, mean effective pressure and power output of 10,27 %, thermal efficiency 1,8% but specific fuel consumption increased approximatelly 12,42%. This condition occurs at engine speed 3000 - 3500 rpm. While the emission CO and HC emissions decreased significantly as a result of the leaning effect caused by the bioethanol addition. In this study, it was found that using bioetanol-gasoline blended fuels , the CO and HC emissions would be reduced appoximatelly by 55 and 32% Respectively.
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Puspawan, A., N. I. Supardi, A. Suandi, H. R. Samosir, and Indarto. "The effect of bioethanol mixture of raw coconut roomie (Cocos nucifera) with Pertamax (RON 92) and Pertalite (RON 90) fuels on the performance of a gasoline motor." IOP Conference Series: Earth and Environmental Science 926, no. 1 (November 1, 2021): 012035. http://dx.doi.org/10.1088/1755-1315/926/1/012035.
Повний текст джерелаАнотація:
Abstract Bioethanol is ethanol produced from glucose fermentation followed by the distillation process. The purpose of this study was to examine the performance of gasoline-fueled motors using bioethanol fuel mixed with pertamax (RON 90) and pertalite (RON92) fuels with a mixed percentage of B0%, B5%, B10%, B15%, and B20%. In this research, bioethanol is made from basic ingredients of coconut roomie (Cocos nucifera), which is fermented then continued with the distillation process to obtain bioethanol with a purity level of 80%. Bioetahnol is used as a fuel mixture using a gasoline fuel motor. The results of testing the mixture of bioethanol B20% and pertamax (RON 90) fuel with the highest torque is 11.94 Nm at rotation 2600 rpm. Bioethanol B20% and pertalite (RON 92) fuel with the highest torque is 11.79 Nm at rotation 2600 rpm. Bioethanol B20% and pertamax (RON 90) fuel the highest initial power is 4.58 hp at rotation 2900 rpm. Bioethanol B20% and pertalite (RON 92) fuel’s the highest power is 4.52 hp at rotation 2900 rpm. Bioethanol B20% and Pertamax (RON 90) fuel shows that the lowest specific fuel consumption is 0.28 kg/hp.h. Bioethanol B20% and pertalite (RON 92) fuel the lowest specific fuel consumption pertalite is 0.29 kg/hp.h. The greater the percentage of in pertamax (RON 90) fuel and pertalite (RON 92) fuel, the specific fuel consumption will be more efficient. In the mixture of pertamax (RON 90) fuel and bioethanol B20% is the largest value torque and power, but specific fuel consumption is the lowest.
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Pivovarova, Nadezhda Anatolievna, Alexander Fedorovich Dorokhov, Vasily Vladimirovich Shakhov, Galina Vladimirovna Vlasova, and Yuliya Shirbalaevna Bayramova. "Studying influence of fuel magnetic treatment on marine engine operation." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2020, no. 4 (November 18, 2020): 61–68. http://dx.doi.org/10.24143/2073-1574-2020-4-61-68.
Повний текст джерелаАнотація:
The article considers the influence of the fuel magnetic treatment onto the operation of a ship engine. Many shipowners are interested in reducing their fuel consumption. Fuel efficiency is one of the most important indicators of a ship's engine. There are various methods to improve the fuel quality. In addition to traditional physical and chemical methods, wave effects are also used, for example, a magnetic treatment. The magnetic treatment effectiveness for diesel fuels has been confirmed by many studies. The analysis of the influence of the magnetic treatment of diesel fuel with a magnetic induction of 0.4 T on the operation of a 4CHN9.5/11 marine engine under different modes is carried out. Magnetic treatment of the fuel was carried out by creating a magnetic field with permanent magnets NdFeb (neodymium - iron - boron) installed in special magnetizers on the fuel line to the high-pressure fuel pump.The methods of analysis of changes in external indicators of the 4CHN9.5/11 engine during magnetic treatment of fuel are considered. The pictures of the 4CHN9.5/11 engine tested are presented. The results of the parameters of the 4CHN9.5/11 diesel engine (effective power, speed, average effective pressure, hourly fuel consumption, specific effective fuel consumption) during tests on load and screw characteristics before or after installation of the magnetizer are presented. The bench tests have confirmed that the reduction in fuel consumption when testing a diesel engine running on magnetically treated fuel makes 5-8%. It is noted that with other types of marine fuel and on other models of engines it is possible to clarify the methods of using magnetic processing in sea and river transport
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Granados Hernández, Elías, Xicoténcatl López Andrade, Elizabeth Vega Rangel, Rodolfo Sosa Echeverria, Ana Luisa Alarcón Jiménez, Gilberto Fuentes García, and Pablo Sánchez Álvarez. "Energy consumption and atmospheric emissions from refined petroleum in Mexico by 2030." Ingeniería Investigación y Tecnología 22, no. 1 (January 1, 2021): 1–13. http://dx.doi.org/10.22201/fi.25940732e.2021.22.1.002.
Повний текст джерелаАнотація:
One of the basic needs for a country’s economic development is to cover the major fuel demand, and both energy consumption and environmental impacts resulting from the production of such fuels need to be fast and reliable. The purpose of this paper is to contribute to an estimate of energy consumption and atmospheric emissions of some of the pollutant species reported by Pemex Refinacion under different projections. The predictive estimate model was applied considering four different gasoline demand scenarios, as well as different refining technology options to satisfy fuel consumption needs, based on production yields: four different types of refineries, three types of crude oils and eight different processes. Emission estimates were determined applying emission factors, both for the type of fossil fuel energy source used in the direct heating processes for vapor generation, as well by using electric energy. Results show that the equivalent energy consumption relative to the total processes crude is greater in complex refineries (full conversion); however, a greater conversion efficiency allows a smaller volume of crude consumption needed to satisfy the fuel demand with lower emissions relative to other types of technologies. Mexico’s possible refineries need to adapt themselves to different operation scenarios, such as changes in the crude’s yield, the quality of the product, variations in the prices of the crude and of the refined products. Therefore, is important to develop and apply perspectives than maximize productivity and minimize energy consumption, reducing air emissions, in constant change scenarios. Finally, the problem would then be evaluating which would be more convenient to obtain a greater socio-economic benefit: reduce emissions to the atmosphere or to lower operation costs of the refinery.
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Mitrofanov, Alexander, Anton Ivaschenko, Alexandr Avsievich, Vladimir Avsievich, and Oleg Golovnin. "Indirect Fuel Rationing for a Special Self-Propelled Rolling Stock." Energies 15, no. 3 (January 24, 2022): 836. http://dx.doi.org/10.3390/en15030836.
Повний текст джерелаАнотація:
A method of indirect rationing of diesel fuel for special self-propelled rolling stock is presented, based on the identification of actual fuel consumption and controlled operating modes. Based on the results of test trips using automated accounting systems for operating modes and fuel consumption, the method allows us to assess reasonable volumes of fuel consumption in a specific section of the railway infrastructure. We show how the methods of identifying actual fuel consumption and operating modes can establish consumption rates of special self-propelled rolling stock without the use of automated fuel metering. The identification method is based on solving a multifactorial equation, the coefficients of which are determined in a program with statistical functions. To eliminate multicollinearity problems, the use of cluster analysis methods is proposed. Unlike traditional calculation methods, the method allows for the determination of the norming indicators in conditions of incomplete and partially incorrect data. The study was conducted using data on fuel consumption of special self-propelled rolling stock at a particular railway range and the relevant regulatory documents provided by Russian Railways. The results were obtained by applying the method to special self-propelled rolling stock used in the electrification and railway track departments of Russian Railways. The proposed method allows for simulation of the indicator of normalized fuel consumption with an accuracy not worse than 96%. Based on the obtained model of normalized fuel consumption, the method and parameters for identifying abnormal and unauthorized fuel overconsumption are shown. The criteria for identifying abnormal fuel overconsumption using the normalized standard deviation function were determined.
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Wayne, W. Scott, Jairo A. Sandoval, and Nigel N. Clark. "Emissions Benefits from Alternative Fuels and Advanced Technology in the U.S. Transit Bus Fleet." Energy & Environment 20, no. 4 (August 2009): 497–515. http://dx.doi.org/10.1260/095830509788707374.
Повний текст джерелаАнотація:
Alternative fuels and technologies offer potential for reducing emissions in public transportation. These potentials were explored by determining emissions levels and fuel consumption from the U.S. transit bus fleet and comparison of hypothetical scenarios in which implementation of specific alternative fuels and technologies is considered. Impacts from current transit bus procurements were also evaluated. Emissions benefits above and beyond the natural course of transit bus procurements were examined for new diesel buses running on ULSD fuel, diesel-electric hybrid buses, gasoline-electric hybrid buses, compressed natural gas and biodiesel. According to the analysis, reductions in emissions of CO, NMHC, NOx, PM and CO2, as well as fuel consumption, may be attained, and diesel hybrid buses yield the largest reductions in CO2 emissions and are the only technology to reduce fuel consumption relative to the present fleet. Introducing diesel-electric hybrid buses in 15% of the U.S. transit bus fleet would reduce annual end-use emissions by nearly 1,800 tons of CO, 400 tons of NMHC, 4,400 tons of NOx, 200 tons of PM, 491,400 tons of CO2, and fuel consumption by 50.66 millions of diesel gallons.
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Sukadana, I. Gusti Ketut, I. Wayan Bandem Adnyana, and I. Gusti Komang Dwijana. "Unjuk kerja mesin menggunakan bahan bakar arak Bali berkonsentrasi 90%." Jurnal Energi Dan Manufaktur 14, no. 2 (January 13, 2022): 67. http://dx.doi.org/10.24843/jem.2021.v14.i02.p06.
Повний текст джерелаАнотація:
Arak Bali which is produced from the distillation process and palm or coconut juice or palm sugar can produce bioethanol with a concentration greater than 90%, not suitable to drink but suitable to be used as fuel. Arak Bali has an octane value of 108.6 and premium fuel has an octane value of 88, so the arak Bali is suitable to be used as alternative fuel. Performance testing was performed using a four-cylinder 125 cc motor vehicle with a compression ratio of 9: 1 using fuels arak Bali compared to premium. Testing is done with engine rotation variation from 3000 rpm, 3500 rpm, 4000 rpm, 4500 rpm, 5000 rpm for performance: torque, power, fuel consumption, specific fuel consumption and exhaust emissions include: hydrocarbon, carbon monoxide, oxigene and carbon dioxide. Testing results the performance of the machine using fuel arak Bali produces the highest torque of 7.15 Nm, the highest power of 5.606 Kw, fuel consumption of 0.161 grams / sec at engine speed 3000 rpm. Specific fuel consumption is 0.1172 kg / kWh at engine speed 5000 rpm. Exhaust emissions generated in the form of hydrocarbon, carbon monoxide, oxigene and carbon dioxide, to indicate that the arak Bali can be used as alternative fuel.
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Nigran Homdoung, Kittikorn Sasujit, Natthawud Dussadee, and Rameshprabu Ramaraj. "Experimental investigation of a small agricultural diesel engine performance using community biodiesel from wild trees." Maejo International Journal of Energy and Environmental Communication 2, no. 1 (January 15, 2020): 9–16. http://dx.doi.org/10.54279/mijeec.v2i1.244946.
Повний текст джерелаАнотація:
The increasing consumption and demand for fossil fuels have more significance than before alarm above its lessening rate and for that reason, stimulated the actions are needed to challenge the issue with an efficient and less polluting alternative fuel for diesel. This study evaluated the performance of an 8.2 kW small diesel engine using three fuels, namely diesel, waste cooking oil biodiesel and wild tree biodiesel, such as granadilla oil biodiesel (GBD) and tung oil biodiesel (TBD). The experimental engine was tested at 1,500 rpm of constant engine speed and 20–80% of engine load. The specific fuel consumption, brake specific energy consumption, brake mean sufficient pressure, brake thermal efficiency, exhaust emission and temperature were evaluated. It was found that the small diesel engine worked well using wild trees biodiesel. The brake means effective pressures were lower by 5–8% and thermal brake efficiency was decreased in the range of 9–15%, compared with diesel fuel. The exhaust emission was lower than Thailand’s industrial standard and slightly higher than waste cooking oil biodiesel and diesel fuel operation. The operation of biodiesel from wild trees is suitable for farmers and is considered feasible for local communities in the future.
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Wang, Jian, Yu Wei Chen, Jian Sun, and Sheng Ji Liu. "Experimental Study on Combustion Characteristics of LPG and Gasoline." Applied Mechanics and Materials 448-453 (October 2013): 3350–53. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.3350.
Повний текст джерелаАнотація:
Experiments were separately carried out on Liquefied Petroleum Gas (LPG) and gasoline as fuel for a spark ignition (SI) engine. According to the indicator diagram and the calculation of corresponding heat release, combustion characteristics of the two fuels were analyzed. The results showed that using LPG would lead to 7.64% power reduction and a little peak pressure reduction when the structures and ignition advance angle of the engine were remained. At rated speed and full load, the power of engine fueled with gasoline reaches the maximum when the excess air ratio is 0.90 and 0.76 fueled with LPG; when comparing the maximum power and specific heat consumption at different excess air ratios, we can see that the change of excess air ratio has a greater effect on the engine fueled with gasoline than that fueled with LPG; the specific heat consumption of both fuels decrease with the increase of load. Besides, under the same Фa, LPG has a shorter combustion delay period, faster combustion speed and shorter combustion period than gasoline.
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Karthikumar, Sankar, V. Ragavanandham, S. Kanagaraj, R. Manikumar, A. Asha, and Anant Achary. "Preparation, Characterization and Engine Performance Characteristics of Used Cooking Sunflower Oil Based Bio-Fuels for a Diesel Engine." Advanced Materials Research 984-985 (July 2014): 913–23. http://dx.doi.org/10.4028/www.scientific.net/amr.984-985.913.
Повний текст джерелаАнотація:
This paper deals on bio-fuel, consisting of used sunflower oil and transesterified - used sunflower oil blended with diesel. They are prepared and tested as a fuel in a direct injection (DI) single cylinder four stroke diesel engine. The main fuel properties of these fuels are measured, the engine performance characteristics are investigated and compared with that of diesel fuel. Fuels are separately prepared, blended and tested for determining the characteristics and combustion in a single cylinder diesel engine. The main fuel properties such as the specific gravity, density, flash and fire points of the blended fuels are measured. The engine performance is investigated and compared with that of diesel fuel. The experimental results showed that the specific gravity of the hybrid bio-fuels is decreased and close to that of diesel fuel. The experimental results also showed that the engine efficiency is closer to the values obtained from the diesel fuel. It is found that among the various blends, transesterifed used sunflower oil with diesel, gives better efficiency. In addition it is found that, the blend of diesel with used sunflower oil gives the lowest fuel consumption as compared to that of other blended fuels. Nomenclatures w1- weight of specific gravity bottle (g) w2- weight of specific gravity bottle + water (g) w3- weight of specific gravity bottle + sample (g)
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Van den Brink, Robert M. M., and Bert Van Wee. "Why has car-fleet specific fuel consumption not shown any decrease since 1990? Quantitative analysis of Dutch passenger car-fleet specific fuel consumption." Transportation Research Part D: Transport and Environment 6, no. 2 (March 2001): 75–93. http://dx.doi.org/10.1016/s1361-9209(00)00014-6.
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Rondón, Andrea, Rolando Aliaga, and Julio Cuisano. "Fuel Consumption and Emissions Analysis of a Light Vehicle Fuelled with Two Ethanol–Gasoline Blends in Urban Driving Conditions of Lima Metropolitana." World Electric Vehicle Journal 12, no. 3 (July 15, 2021): 99. http://dx.doi.org/10.3390/wevj12030099.
Повний текст джерелаАнотація:
We present a comparative study of fuel consumption, emissions factors, and vehicle-specific power of a light vehicle operating with two gasoline–ethanol blends as fuel: commercial gasohol (E7.8) and an alternative mix with 10% v/v of ethanol (E10). For this purpose, a vehicle in the city’s fleet was equipped with a central system of data acquisition, whose main function was to capture second-by-second data of the air intake of the engine, the emissions concentration levels in the exhaust, the distance traveled, vehicle speed, and environmental conditions during testing. The measuring campaign was carried out in the city of Lima Metropolitana. Fuel consumption was calculated indirectly, using air intake measurements. The vehicle’s engine emissions were analysed using the mass flow rates of CO2, CO, HC, and NOx, as well as the vehicle-specific power. The results show that, in traffic conditions, the change in fuels does not affect the consumption. On the other hand, a correlation was found between the vehicle-specific power and the emissions mass flow. During the comparison between fuels, the results showed an increase in the mass flow standard deviation when using E10.
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Shi, Fuxi, Jun Chen, Yang Xu, and Hamid Reza Karimi. "Optimization of Biodiesel Injection Parameters Based on Support Vector Machine." Mathematical Problems in Engineering 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/893084.
Повний текст джерелаАнотація:
For the running diesel engine, spray-atomization, mixed-combustion, and thermal-power conversion processes are inseparable, which causes difficulty to investigate atomization effect separately. This study was conducted to improve the atomization efficiency of the soybean fatty acid methyl ester (SFAME) in engine, to achieve the minimum effective specific fuel consumption in specific engine working conditions, the different injection parameters combination were explored on the influence of effective specific fuel consumption at elevated fule temperature. The effective specific fuel consumption prediction model was established based on support vector machine (SVM). With small samples, the intrinsic functional relationship was determined and the best injection parameters were validated under seven different experimental conditions. The study results have shown that the engine’s spray-thermal-power conversion process could be simulated accurately by using SVM. It will be more favorable to improve application effect of biodiesel in the engine to select the fuel temperature as injection parameters which influence atomization effect. Furthermore, using enumeration-verification methods to simulate the parameters might save a lot of resources as compared to the similar experiments.
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Song, S., and P. G. Hill. "Dual-Fueling of a Prechamber Diesel Engine With Natural Gas." Journal of Engineering for Gas Turbines and Power 107, no. 4 (October 1, 1985): 914–21. http://dx.doi.org/10.1115/1.3239836.
Повний текст джерелаАнотація:
The feasibility of dual-fuel operation with natural gas in a prechamber diesel engine was studied with special emphasis on fuel consumption and cylinder pressure development. The effects of air restriction, pilot diesel flow rate, and injection timing were also investigated. Near full load the fuel energy consumption rate was close to that of straight diesel operation though at part load (in the absence of air restriction) the fuel energy consumption rate was relatively high. In the absence of injection timing adjustment the maximum power output of dual-fuel operation was severely limited by the maximum cylinder pressure. Retarding the injection timing is effective in reducing the maximum cylinder pressure to a safe level. The analysis of apparent energy release indicates the differences in combustion mechanism between auto-ignition of diesel fuel in straight diesel operation and propagation of flame fronts in dual-fuel operation.
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Pandhare, Amar, and Atul Padalkar. "Investigations on Performance and Emission Characteristics of Diesel Engine with Biodiesel (Jatropha Oil) and Its Blends." Journal of Renewable Energy 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/163829.
Повний текст джерелаАнотація:
This paper presents the performance of biodiesel blends in a single-cylinder water-cooled diesel engine. All experiments were carried out at constant speed 1500 rpm and the biodiesel blends were varied from B10 to B100. The engine was equipped with variable compressions ratio (VCR) mechanism. For 100% Jatropha biodiesel, the maximum fuel consumption was 15% higher than that of diesel fuel. The brake thermal efficiency for biodiesel and its blends was found to be slightly higher than that of diesel at various load conditions. The increase in specific fuel consumption ranged from 2.75% to 15% for B10 to B100 fuels. The exhaust gas temperature increased with increased biodiesel blend. The highest exhaust gas temperature observed was 430°C with biodiesel for load conditions 1.5 kW, 2.5 kW, and 3.5 kW, where as for diesel the maximum exhaust gas temperature was 440°C. The CO2emission from the biodiesel fuelled engine was higher by 25% than diesel fuel at full load. The CO emissions were lower with Jatropha by 15%, 13%, and 13% at 1.5 kW, 2.5 kW, and 3.5 kW load conditions, respectively. TheNOxemissions were higher by 16%, 19%, and 20% at 1.5 kW, 2.5 kW, and 3.5 kW than that of the diesel, respectively.