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Journal articles on the topic 'Compressed air cannon'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Taylor, Brett. "Recoil Experiments Using a Compressed Air Cannon." Physics Teacher 44, no. 9 (2006): 582–84. http://dx.doi.org/10.1119/1.2396775.

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2

Rohrbach, Z. J., T. R. Buresh, and M. J. Madsen. "Modeling the exit velocity of a compressed air cannon." American Journal of Physics 80, no. 1 (2012): 24–26. http://dx.doi.org/10.1119/1.3644253.

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3

Duan, Zhengyong, Tianhong Luo, and Dayong Tang. "Potential Analysis of High-g Shock Experiment Technology for Heavy Specimens Based on Air Cannon." Shock and Vibration 2020 (November 26, 2020): 1–8. http://dx.doi.org/10.1155/2020/5439785.

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According to the technical requirements of harsh shock environment test, this paper presents the study on the pneumatic vertical test technology with large load and high-g value. The inspiration of this paper comes from the fact that a compressed air cannon can produce instantaneous and powerful air jets that can be used to drive the tested object to achieve a high initial collision velocity. Then, the principle of shock test technology based on an air cannon and an impact cylinder was put forward, and the idea gas mechanics model was established to theoretically analyze the laws that how the

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4

Soufri, Ayoub, Ameur Chettah, Benoît Piezel, and Christophe Bouvet. "A Newly Developed Compressed Air Cannon Test Bench Designed for Multi-Impact Analysis of Composite Structures." Applied Mechanics 5, no. 4 (2024): 997–1010. https://doi.org/10.3390/applmech5040055.

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Understanding the response and damage evolution of structures subjected to multiple impact events is essential for designing resilient structures capable of withstanding complex loading scenarios, such as impacts from hail, gravel or foreign object debris. This article presents the development and characterization of a novel test bench, the “Compressed air multi-cannon”, designed specifically for studying the multi-impact behavior of composite materials. This test bench offers advantages over traditional impact testing methods by enabling controlled and adjustable impact parameters, including

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5

Capanna, R., and P. M. Bardet. "High Speed PIV and Shadowgraphy Measurements in Water Hammer." Proceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics 20 (July 11, 2022): 1–10. http://dx.doi.org/10.55037/lxlaser.20th.170.

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An experimental study addressing the challenge to measure relaxation coefficient of very fast phenomena such as water hammers is presented. A titanium projectile containing a sapphire tube containing water is accelerated and impacts a metal wall creating a water hammer. A compressed air custom built cannon is used to accelerate the projectile and create the impact leading to the water hammer. The sapphire tube, being transparent to green and UV light allows the deployment of non intrusive laser based diagnostic techniques such as Particle Image Velocimetry, Shadowgraphy, and Fiber Optic Hydrop

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Yang, LK, H. Wu, and LL Ma. "Experimental and numerical study on the dynamic behavior of RC rock sheds under rockfall impact using a newly developed large-caliber compressed air cannon." Engineering Failure Analysis 180 (October 2025): 109827. https://doi.org/10.1016/j.engfailanal.2025.109827.

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Yang, Xiaoguang, Jianjun Dang, Peng Wang, et al. "Experimental research on influence of wave environment on high-speed water entry load and trajectory characteristics." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 39, no. 6 (2021): 1259–65. http://dx.doi.org/10.1051/jnwpu/20213961259.

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Wave environment is a common fact happened when objects enter water under real conditions, which changes the morphology of the free interface when entering water. However, the influence of wave environment on the flow when entering water and on the evolution of object motion parameters after entering water is not clear. In this research, a rocking plate wave maker is used to generate a wave environment in the test pool, and a truncated cone rotating body equipped with an internal test system is used as the test model. The compressed air cannon is used to provide launch power, and the launch co

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Madavha, Muster Thivhileli, and Mohamed-Tariq Kahn. "Design and Analysis of a Micro-Hydro Distributed Power System." International Journal of Engineering Research in Electrical and Electronics Engineering 9, no. 9 (2022): 1–7. http://dx.doi.org/10.36647/ijereee/09.09.a001.

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The purpose of this study is to improve the standard way of producing electricity in a hydropower plant through the introduction of a more effective method. The aim of installing this Micro-hydro Distributed Power System is to achieve greater results in comparison to those attained with a standard micro-hydro power plant, without depending upon rainfall but upon two stored natural resources, air and water. This air supply will come from solar compressors and the water will be drawn from existing dams or runoff from rivers into storage tanks, which will generate electricity throughout the year

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Dobrotvorskiy, Sergey, Ludmila Dobrovolska, Yevheniia Basova, and Borys Aleksenko. "PARTICULARS OF ADSORBENT REGENERATION WITH THE USE OF MICROWAVE ENERGY." Acta Polytechnica 59, no. 1 (2019): 12–23. http://dx.doi.org/10.14311/ap.2019.59.0012.

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Energy conservation issues are acute in the world. Compressed air is widely used in the modern industrial production. The production of compressed air is a very energy-intensive process, since most of the energy, which is expended by the compressor, passes into the energy of heating. Compressed air cannot be used in modern production without a prior drying and cleaning. Industrial dryer’s air losses is up to 20% of compressed air additionally. Therefore, the issue of saving air during its drying stage is important. In the presented article, the thermal and aerodynamic processes that occur in t

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Ren, Xu, Cai, Wang, and Li. "Experiments on Air Compression with an Isothermal Piston for Energy Storage." Energies 12, no. 19 (2019): 3730. http://dx.doi.org/10.3390/en12193730.

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Air is usually compressed adiabatically in the compressor. As the operating speed of compressors can be several thousand rpm, heat generated during compression cannot be sufficiently transmitted to the environment in such a short time. It is for this reason that compressor efficiency is limited. Isothermal compression could be an alternative choice applied on industrial compressor and compressed air energy storage (CAES). This paper proposed a new kind of piston to perform isothermal compression. Surface area of such isothermal piston structure is larger. A certain amount of fluid at the chamb

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Naufal Annafi, Muhammad, Asman Ala, and Jarot Delta Susanto. "Optimizing Air Compressor Productivity in Supporting Operational Activities on The Mt Ship. Gamalam." International Journal of Advanced Multidisciplinary 2, no. 2 (2023): 608–11. http://dx.doi.org/10.38035/ijam.v2i2.304.

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Air compressors are auxiliary machines on board that can produce high pressure air. This research was conducted because the productivity of the air compressor was less than optimal, causing air production and the performance of the air compressor to be less than optimal and disrupting operational activities on the ship. The impact that occurs when air production is reduced in the air compressor, the ship cannot operate according to the contract specified by the company, because the initial start of the main engine or main engine on board requires compressed air. Many factors can cause reduced

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Dierolf, Christian, and Alexander Sauer. "Automatisierte KI-basierte Leckage-Erkennung/Automated AI-based leak detection." wt Werkstattstechnik online 111, no. 03 (2021): 152–58. http://dx.doi.org/10.37544/1436-4980-2021-03-60.

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Obwohl Druckluftleckagen jährlich hohe Kosten verursachen, ist deren automatisierte und aufwandsarme Erkennung immer noch nicht möglich. In diesem Beitrag wird das Konzept einer automatisierten KI-basierten Leckage-Erkennung vorgestellt und auf einen Druckluft-Labordemonstrator angewendet. Erste Validierungen der Vorgehensweise zeigen, welche Potenziale und Herausforderungen sich für das Leckage-Management an Druckluftmaschinen ergeben. &nbsp; Though incurring substantial costs every year, compressed air leakages still cannot be detected automatically and without much effort. This paper pr

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Cheayb, Mohamad, Sébastien Poncet, Mylène Marin-Gallego, and Mohand Tazerout. "Parametric Optimisation of a Trigenerative Small Scale Compressed Air Energy Storage System." Proceedings 23, no. 1 (2019): 5. http://dx.doi.org/10.3390/proceedings2019023005.

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Recently, major improvement on compressed air energy storage technology has been made by using the heat of compression for heating energy or using it to preheat the compressed air in the expansion phase and by demonstrating its ability to produce cooling energy. Thus, the trigenerative compressed air energy storage has been introduced. In this paper, we introduce a configuration of trigenerative compressed air energy storage system giving the preference to the electric energy production. The study then focuses on undertaking an optimization study via a parametric analysis considering the mutua

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Hamidova, G. "INCREASING THE EFFICIENCY OF SCREW COMPRESSORS USED IN INDUSTRY." Sciences of Europe, no. 129 (November 27, 2023): 176–80. https://doi.org/10.5281/zenodo.10209470.

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Increasing energy efficiency is the most important energy source today. Therefore, the main success criterion of product development studies is seen as efficiency. Compressors; It is widely used in many different sectors, especially petro-chemical, electronics, automotive, food, machinery, glass, machining, textile, construction. In our daily life, compressors are among the indispensable main components in refrigerators we use at home and in transportation (bus, train, truck). To put it in a nutshell, while people need air to live, the operation of industry depends on compressed air. Compresse

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Firmansyah, Rizky, Ahmad Mubarok, and M. Tsani Ashrofazami. "Cara Kerja dan Fungsi Kondensor Sebagai Pelepas Panas Pada Gas Refrigran Di PT. Phalosari Unggul Jaya." Elconika: Jurnal Teknik Elektro 3, no. 1 (2024): 1–7. https://doi.org/10.33752/elconika.v3i1.8261.

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In our daily lives, we certainly cannot be separated from frozen processed foods that we usually find in supermarkets or other frozen food stores. There are many frozen processed foods that we can find on the market, one example is frozen chicken, frozen duck, frozen sausage and so on. PT. Phalosari Unggul Jaya is a company that focuses on the field of chicken, duck cutting and providing frozen processed or ingredients made from chicken. To meet the needs of frozen food in the community, PT. Phalosari Unggul Jaya now utilizes Air Blast Freezer technology or what is commonly called ABF, Air Bla

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Gao, Feng, Bin Yang, Xin Li, and Jinguo Wu. "Noise Analysis and Structural Optimization of Automobile Scroll Compressor Air Valve." Applied Sciences 14, no. 11 (2024): 4875. http://dx.doi.org/10.3390/app14114875.

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The air conditioning compressor is a critical component in automobile heating, ventilation and air conditioning systems. However, compressor noise has long been a problem for automobile manufacturers. In recent years, the development and application of automobile air conditioning scroll compressors has increased significantly due to their low mechanical vibration and noise. However, their limitations in terms of airflow pulse and noise cannot be ignored, especially in low speed and high load conditions where the noise generated has a negative impact on driving and passenger experience. Noise a

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17

Mo, J. P. T. "Analysis of Compressed Air Flow Through a Spool Valve." Proceedings of the Institution of Mechanical Engineers, Part C: Mechanical Engineering Science 203, no. 2 (1989): 121–31. http://dx.doi.org/10.1243/pime_proc_1989_203_095_02.

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A pneumatic servo-mechanism with a sophisticated control algorithm based on variable closed-loop gains has been developed recently on specially designed pneumatic drives. Unfortunately, due to the compressibility of air, models derived using traditional linearization methods could not describe the behaviour of the system over its full stroke and hence prevented the generalization of the control algorithm on a commercial platform. The problem is tackled by the component-oriented approach which segregates the pneumatic servo-mechanism into individual components for more precise analysis. This pa

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18

Jia, Guanwei, Xuanwei Nian, Weiqing Xu, Yan Shi, and Maolin Cai. "Water-Spray-Cooled Quasi-Isothermal Compression Method: Water-Spray Flow Improvement." Entropy 23, no. 6 (2021): 724. http://dx.doi.org/10.3390/e23060724.

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Water-spray-cooled quasi-isothermal compressed air energy storage aims to avoid heat energy losses from advanced adiabatic compressed-air energy storage (AA-CAES). The compression efficiency increases with injection water spray. However, the energy-generated water spray cannot be ignored. As the air pressure increases, the work done by the piston and the work converted into heat rise gradually in the compression process. Accordingly, the flow rate of the water needed for heat transfer is not a constant with respect to time. To match the rising compression heat, a time sequence of water-spray f

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19

Kurkus-Gruszecka, Michalina, Piotr Krawczyk, and Piotr Łapka. "CFD modelling and validation of the rotary lobe compressed air expander." MATEC Web of Conferences 240 (2018): 05015. http://dx.doi.org/10.1051/matecconf/201824005015.

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The article covers the CFD analysis of the compressed air rotary lobe expander. Compressed air engines are commonly used in the explosion hazard zones, where the others power sources cannot be applied. The lobe construction seems to be cheaper solution in comparison with the classic turbine expanders at the corresponding power level. In the paper the rotary lobe compressed air expander model was developed in the ANSYS CFX software. During implementation of the proposed numerical model the mesh motion problem was solved, which was challenging due to relatively small gaps between lobes and the h

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20

Afiq, Aiman Dahlan, Amirah Haziqah Zulkifli, Nasution Henry, Abdul Aziz Azhar, Mohd Rozi Mohd Perang, and Hishammudin Mohd Jamil. "Performance Study of Electric Compressor in Non-Electric Vehicle." Applied Mechanics and Materials 554 (June 2014): 464–68. http://dx.doi.org/10.4028/www.scientific.net/amm.554.464.

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The usage of electric compressor inside conventional non-electric vehicle is a new shifts in current vehicle air conditioning system which currently using belt-driven compressor to operate. The usage of belt-driven compressor causes the compressor speed to vary with engine speed rotation, which we cannot control. The usage of electric compressor to replace the belt-driven compressor makes the speed to be according to the cooling load and thus reducing engine load. The current research activity focuses on the development of electric compressor using direct current (DC) from vehicles battery to

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21

Ivanov, Emilian Octavian, and Costel Ungureanu. "Design of a submarine main ballast blowing systems." Analele Universităţii "Dunărea de Jos" din Galaţi Fascicula XI Construcţii navale/ Annals of "Dunărea de Jos" of Galati Fascicle XI Shipbuilding 46 (December 4, 2023): 147–54. http://dx.doi.org/10.35219/annugalshipbuilding/2023.46.18.

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A submarine ballast system represents a combination of dedicated equipment and piping in which the main circulating fluid is either sea water straight from the submarine exterior or air which is compressed at high pressures and then it is stored in pressure vessels onboard. These fluids are, then, introduced in or extracted from various tanks located strategically onboard the submerged vehicle. Because water cannot be compressed and because of it’s density, it will require large amounts of energy and pumps to be able to move all the water within the system in a short period of time that is req

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22

Zhygalov, Ia A., V. V. Inyushev, V. O. Posokh, S. A. Vyzhva, and I. I. Onyshchuk. "Experimental research of the air permeability of concrete in the compressed zone of the containment for power units no. 1, 2 of the South-Ukrainian NPP." Nuclear Power and the Environment 20 (2021): 39–50. http://dx.doi.org/10.31717/2311-8253.21.1.3.

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The determination of the air permeability of concrete in the compressed zone of NPP’s containment under conditions of excessive air pressure in the subshell space of the reactor compartment under a maximum design basis accident is necessary to confirm the localizing functions of the containment when extending the lifetime of power units. Approaches to determining the localizing ability (air permeability) of concrete in the compressed zone of the containment of NPPs with WWER-1000 type reactors under the impact of excessive air pressure under conditions of maximum design basis accident are disc

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23

Zhang, Ao, and Hongyuan Sun. "Dynamics Analysis of a Rolling Rotor Compressor Considering the Electromagnetic Force." Journal of Computing and Electronic Information Management 10, no. 3 (2023): 91–94. http://dx.doi.org/10.54097/jceim.v10i3.8708.

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Rolling rotor compressor is a commonly used compressor in air conditioning systems, and studying its internal dynamic characteristics plays an important role in the vibration and noise of air conditioning systems. Due to the integration of the motor rotor and shaft inside the compressor, the influence of electromagnetic force needs to be considered when analyzing the dynamics of the compressor. This paper studies the rotor dynamics characteristics of a rolling rotor compressor, considering not only the bearing force and gas force inside the cylinder, but also the electromagnetic force of the m

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Wan, Fa, and Zhong-Ming Jiang. "Seepage and Heat Transfer Characteristics of Gas Leakage under the Condition of CAES Air Reservoir Cracking." Geofluids 2021 (July 27, 2021): 1–18. http://dx.doi.org/10.1155/2021/5182378.

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The contradiction between supply and demand of energy leads to more and more attention on the large-scale energy storage technology; Compressed Air Energy Storage (CAES) technology is a new energy storage technology that is widely concerned in the world. The research of coupled heat transfer and seepage in fractured surrounding rocks is the necessary basis to evaluate the operation safety and effectiveness of CAES. Current studies point to the possibility of cracking in concrete liner seals, but the thermodynamic processes and leakage characteristics of compressed air in the presence of cracki

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Kurdi, Ojo, Saziana binti Samat, Mohd Azam bin Mohd Adnan, et al. "Wall Thickness Optimization of High Powered Portable Multifunction Air Compressor Tank Using Finite Element Method." Applied Mechanics and Materials 695 (November 2014): 746–49. http://dx.doi.org/10.4028/www.scientific.net/amm.695.746.

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Air compressor tank is the important equipment in the automotive workshops and laboratories. Air compressor can be categorized as pressure vessel. Pressure vessel often has a combination of high pressure together with high temperature, in some cases of flammable fluids or highly radioactive material. Due to hazards, it is crucial to ensure there is no leakage on the products. In addition, vessel has to be design cautiously to cope with the operating temperature and pressure. The thickness of the PMAC should be optimized to get the best performance, the thickness cannot be very large due to the

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GÜNGÖR ÇELİK, Ayşegül. "Advanced Exergy Assessment of an Air Source Heat Pump Unit." Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 13, no. 1 (2023): 15–22. http://dx.doi.org/10.17798/bitlisfen.1308933.

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Conventional exergy-based analysis methods are used for evaluating the performance of the energy conversation systems. Conventional exergy-based analyses identify the sources, amounts, and reasons of irreversibilities (exergy destructions), costs and environmental effects, and provide a general direction for improvement. However, interactions between system components (endogenous/exogenous) and technical limitations (avoidable/unavoidable) cannot be identified with any conventional analysis. Hence, the real potential for improvement and optimization strategies can be misguided. Advanced exergy

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Chen, A. G., Daniel J. Maloney, and William H. Day. "Humid Air NOx Reduction Effect on Liquid Fuel Combustion." Journal of Engineering for Gas Turbines and Power 126, no. 1 (2004): 69–74. http://dx.doi.org/10.1115/1.1615255.

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An experimental investigation was carried out at DOE NETL on the humid air combustion process using liquid fuel to determine the effects of humidity on pollutant emissions and flame stability. Tests were conducted at pressures of up to 100 psia (690 kPa), and a typical inlet air temperature of 860°F (733 K). The emissions and RMS pressures were documented for a relatively wide range of flame temperature from 2440-3090°F (1610–1970 K) with and without added humidity. The results show more than 90% reduction of NOx through 10% humidity addition to the compressed air compared with the dry case at

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Sidorovskaia, Natalia, and Kun Li. "Marine compressed air source array primary acoustic field characterization from at-sea measurements." Journal of the Acoustical Society of America 151, no. 6 (2022): 3957–78. http://dx.doi.org/10.1121/10.0011678.

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The primary acoustic field of a standard seismic survey source array is described based on a calibrated dataset collected in the Gulf of Mexico. Three vertical array moorings were deployed to measure the full dynamic range and bandwidth of the acoustic field emitted by the compressed air source array. The designated source vessel followed a specified set of survey lines to provide a dataset with broad coverage of ranges and departure angles from the array. Acoustic metrics relevant to criteria associated with potential impacts on marine life are calculated from the recorded data. Sound pressur

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Прохоренко, Андрій Олексійович, Сергій Сергійович Кравченко, Олександр Васильович Грицюк та Анатолій Петрович Кузьменко. "ВИБІР ТА ОБҐРУНТУВАННЯ СХЕМИ НАДДУВУ ДИЗЕЛЯ АВІАЦІЙНОГО ПРИЗНАЧЕННЯ". Aerospace technic and technology, № 1 (26 лютого 2021): 75–83. http://dx.doi.org/10.32620/aktt.2021.1.08.

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The article provides the substantiation of the rational scheme of the boost system of the aircraft diesel engine KhADI-100A to ensure its altitude from the point of view of the lowest losses of the effective engine power. A method is proposed for assessing the power loss of an aircraft diesel engine depending on the flight altitude. Three variants of the supercharging system are considered: with one free turbocharger; parallel drive compressor and free turbocharger; sequential drive compressor and free turbocharger. As a result of the computational study, it was shown that in the case of using

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30

Waghmare, Atul C., Pihu Ghodeswar, Tushar Khot, Buddhabhushan Gawande, Mohd Sohel, and Sahil Wagh. "Design and Fabrication of Gravity Based Energy Storage System." International Journal for Research in Applied Science and Engineering Technology 11, no. 5 (2023): 598–600. http://dx.doi.org/10.22214/ijraset.2023.51231.

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Abstract: Renewable energy sources are increasingly fulfilling the need for continuous energy supply. However, energy derived from these sources cannot be directly utilized and must be stored in energy storage systems such as Battery Energy Storage Systems (BESS), Compressed air systems, Mechanical systems, Hydraulic systems, among others. In this paper, we will discuss the study and analysis of a Gravity-based energy storage system and its fabrication of a model-based representation. The objective is to improve the overall concept and efficiency of the system. Gravity-based energy storage sys

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Mehraban, Karim Maghsoudi, Seyyed Vahid Mahmoodi Jezeh, and Seyyed Hossein Musa Kazemi. "Technical and Economical Evaluation of Media and Fog Systems in Fars, Qom, Yazd, Shahid Rajaee Power Plants." Advanced Materials Research 433-440 (January 2012): 7229–33. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.7229.

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In the hot days of summer, the efficiency of gas turbine is extremely reduced because the input air to compressors becomes hot. For solving this problem, one can increase the efficiency of the power house by charging to decrease the input air temperature to the compressor of gas turbine. In this paper, all kinds of cooling the inlet air to the gas turbine are introduced and then the technical and economical evaluation of these installed cooling system in Shahid Rajaee, Qom, Fars and Yazd power plants are expressed and the results show that the fog system cannot prove its effectiveness in Shahi

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Xia, Yan Chun, and Dong Xiao. "The Application of SPC in the Motor Production Operation of the Air Conditioning Compressor." Applied Mechanics and Materials 120 (October 2011): 304–10. http://dx.doi.org/10.4028/www.scientific.net/amm.120.304.

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Motor is the key part of the air conditioner compressor. And the production process of the motor will often encounter some quality defects. One of the most common defects is machine winding paint film injury. In the past, salt pinhole test and brush test are common means for product quality control in many companies. Although in such trials, some quality problem can be found, it is a single method for site quality management and is a kind of method of remedying afterwards. It often cannot find or visualized find by chart the bad trend timely. Statistical process control (SPC) is a different me

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Chen, Meng, Zhifang Zhou, Brent Sleep, Xingxing Kuang, Li Mingwei, and Anchi Shi. "Experimental Study of Water Infiltration in Unsaturated Horizontal Sand Columns under Various Air Confinement Conditions." Geofluids 2019 (December 18, 2019): 1–13. http://dx.doi.org/10.1155/2019/4270358.

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The process of water infiltration into initially dry sand was studied in horizontal sand columns under various airtight conditions. To investigate the interrelations among water inflow behavior, air pressure, air confinement effect, and vent effectiveness in unsaturated porous media experiencing dynamic infiltration, a total of five dynamic infiltration experiments with fixed inlet water pressure were performed with different air vents open or closed along the column length. Visualizations of the infiltration process were accompanied by measurements of water saturation, air pressure, and accum

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XU, HONGBO, SHUANGQUAN SHAO, HUIMING ZOU, and CHANGQING TIAN. "INTEGRATED STEADY-STATE AND DYNAMIC SIMULATION OF MULTI-UNIT AIR CONDITIONERS BASED ON TWO-PHASE FLUID NETWORK MODEL." International Journal of Air-Conditioning and Refrigeration 20, no. 04 (2012): 1250020. http://dx.doi.org/10.1142/s2010132512500204.

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An integrated simulation model is developed to investigate the steady-state and dynamic performance of multi-unit air conditioners (MUACs). It is built as two-phase fluid network which is able to describe different systems by incidence matrixes. And the submodels are embedded in the system framework, where the submodels can be either steady-state or dynamic model, distributed parameter or lumped parameter model. For this case, the numerical submodels are employed with moving-boundary models of condenser and evaporator, steady-state models of compressor and electronic expansion valve. The compa

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Bhavani, Kompalli, and Sivanesan Murugesan. "Diesel to Dual Fuel Conversion Process Development." International Journal of Engineering & Technology 7, no. 3.6 (2018): 306. http://dx.doi.org/10.14419/ijet.v7i3.6.15121.

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This paper aims to develop a process for conversion of Diesel Engine for Dual Fuel operation which is basically designed to reduce the economic costs and pollutant Emissions. The increasing cost of Diesel Fuel leads to the necessity of an Alternate fuel, i.e Compressed Natural gas (CNG). In this research a 16 cylinder, 50.25liter, Turbocharged After cooler V-shaped Engine is used for the conversion into Dual Fuel Engine. Dual fuel engine can be operated on both Diesel and CNG modes simultaneously. In this Engine the Air and CNG are mixed in required ratios in an Air- Gas mixer and the mixture

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Tao, R. "Can we eliminate major tornadoes in Tornado Alley? — Response to the Comments." International Journal of Modern Physics B 28, no. 29 (2014): 1475005. http://dx.doi.org/10.1142/s0217979214750058.

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Dahl and Markowski are wrong and misleading to claim that the major tornadoes in USA Tornado Alley are not related to the collisions between northbound warm air flow and southbound cold air flow. In addition, they use incompressible and inviscid fluid model for atmosphere in their simulations about the interaction between air wind and the wall. Such approach ignores the basic physics and thus cannot reach any meaningful results. As air is compressible, the collision between the wind and wall will compress air, eventually lead the air density to decrease fast with the height and make the air fl

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Putra, Karisma Trinanda, Hsing-Chung Chen, Prayitno, et al. "Federated Compressed Learning Edge Computing Framework with Ensuring Data Privacy for PM2.5 Prediction in Smart City Sensing Applications." Sensors 21, no. 13 (2021): 4586. http://dx.doi.org/10.3390/s21134586.

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The sparse data in PM2.5 air quality monitoring systems is frequently happened on large-scale smart city sensing applications, which is collected via massive sensors. Moreover, it could be affected by inefficient node deployment, insufficient communication, and fragmented records, which is the main challenge of the high-resolution prediction system. In addition, data privacy in the existing centralized air quality prediction system cannot be ensured because the data which are mined from end sensory nodes constantly exposed to the network. Therefore, this paper proposes a novel edge computing f

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Weigl, H. J., J. D. Paduano, L. G. Fre´chette, et al. "1997 Best Paper Award—Controls and Diagnostics Committee: Active Stabilization of Rotating Stall and Surge in a Transonic Single-Stage Axial Compressor." Journal of Turbomachinery 120, no. 4 (1998): 625–36. http://dx.doi.org/10.1115/1.2841772.

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Rotating stall and surge have been stabilized in a transonic single-stage axial compressor using active feedback control. The control strategy is to sense upstream wall static pressure patterns and feed back the signal to an annular array of twelve separately modulated air injectors. At tip relative Mach numbers of 1.0 and 1.5 the control achieved 11 and 3.5 percent reductions in stalling mass flow, respectively, with injection adding 3.6 percent of the design compressor mass flow. The aerodynamic effects of the injection have also been examined. At a tip Mach number, Mtip, of 1.0, the stall i

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Chen, Qifan, and Hang Xu. "Application Status and Development Prospect of Liquid Air Energy Storage." Highlights in Science, Engineering and Technology 26 (December 30, 2022): 102–10. http://dx.doi.org/10.54097/hset.v26i.3657.

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The growth of the energy storage sector has garnered increasing attention from nations in recent years. In recent years, the energy storage sector has grown at a rate that has outpaced the expansion of the power sector in terms of real industrial output and application. Due to the obvious growth of renewable energy, there is a sizable market potential for the development of the energy storage industry, which is mostly represented by wind and light. Yet, there is still demand to integrate renewable energy into the grid on a wide scale and run safely and steadily because new energy sources are s

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Kumar Singh, Nishant, Sandeep Agrawal, Rajvardhan ., and Yashvir Singh. "Experimental Study and Parameter Optimization of Hybrid Electrical Discharge Machining." International Journal of Engineering & Technology 7, no. 3.12 (2018): 1161. http://dx.doi.org/10.14419/ijet.v7i3.12.17780.

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Hard materials cannot be machined effectively by the individual machining process. In order to machine workpiece made from hard and stiff materials effectively a concept of Hybrid machining process (HMP) is originated. The HMP is an integration of two or more machining process to get the advantage of each individual process. HMP is used to machine This study focuses on evolving a novel process using both oil and gas as dielectrics to analyse the effect on tool wear rate (TWR) and material removal rate (MRR). The flow of compressed gas through eccentric-hole rotating tool improved the debris re

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Miller, John, Scott Lehman, Chad Wolak, et al. "Initial Results of an Intercomparison of AMS-Based Atmospheric 14CO2 Measurements." Radiocarbon 55, no. 3 (2013): 1475–83. http://dx.doi.org/10.1017/s0033822200048402.

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This article presents results from the first 3 rounds of an international intercomparison of measurements of Δ14CO2 in liter-scale samples of whole air by groups using accelerator mass spectrometry (AMS). The ultimate goal of the intercomparison is to allow the merging of Δ14CO2 data from different groups, with the confidence that differences in the data are geophysical gradients and not artifacts of calibration. Eight groups have participated in at least 1 round of the intercomparison, which has so far included 3 rounds of air distribution between 2007 and 2010. The comparison is intended to

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Li, Ting, Yuchuan Wang, Xiuli Mao, Diyi Chen, Rui Huang, and Quanke Feng. "Development and Experimental Study of the First Stage in a Two-Stage Water-Flooded Single-Screw Compressor Unit for Polyethylene Terephthalate Bottle Blowing System." Energies 13, no. 16 (2020): 4232. http://dx.doi.org/10.3390/en13164232.

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The oil-free compressor is a key component in fabricating polyethylene terephthalate (PET) bottles for beverages and water. At present, the main compressor type used for blowing PET bottles is the reciprocating compressor. However, compared to screw compressors, reciprocating compressors have shortcomings of high energy consumption and too many consumable parts. Many manufacturers of PET bottles in Asia are seeking to replace reciprocating compressors with screw compressors, as we know. Screw compressors can be classified as single-screw compressors (SSC) and twin-screw compressors. Since the

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Pangelis, S., S. R. Olsen, J. Scherschligt, et al. "Safety interlock and vent system to alleviate potentially dangerous ice blockage of top-loading cryostat sample sticks." Journal of Applied Crystallography 46, no. 4 (2013): 1236–39. http://dx.doi.org/10.1107/s0021889813010868.

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A combined solution is presented for minimizing the safety hazards associated with closed cycle cryostats described by Swainson & Cranswick [J. Appl. Cryst.(2010),43, 206–210]. The initial solution is to install a vent tube with one open end deep inside the sample space and a pressure relief valve at the top. This solution works for either a cryogen or a cryogen-free (closed cycle) system. The second approach, which can be combined with the first and is applicable to cryogen-free cryostats, involves electrically interlocking the closed cycle refrigerator compressor to the sample space, so

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Athrey, Prajwal L. "Design and Fabrication of Exoskeleton Arm for Lifting Weight." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (2022): 4931–32. http://dx.doi.org/10.22214/ijraset.2022.45127.

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Abstract: For centuries now, humans have developed machines for tasks which are too labour intensive for species cannot do. So, creative imagination and subtle engineering has led to the development of the powered exoskeleton. It is a device which can be worn over the human body. The robotic exoskeleton systems are developed significantly to be used for human power assist and haptic interaction with human Motion. The designed pneumatic arm consists of cylinders, a shaft efforts with lead screw mechanism able of converting a movement of piston to rotational movement of arm by utilizing the comp

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Om Prasaad, J., A. B. Krishnan, Parth Lokhande, and Biradar Mustaffa. "Design and Development of Pneumatic Sheet Metal Cutting Machine." IOP Conference Series: Materials Science and Engineering 1259, no. 1 (2022): 012020. http://dx.doi.org/10.1088/1757-899x/1259/1/012020.

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Abstract A Pneumatic sheet metal cutting machine, is a mechanism designed to cut metal sheets at a quick pace, based on the inputs given by the operator, using a switch. The machine consists of a cutter blade system, a double acting pneumatic cylinder held over the cutter blade system, an air compressor, a pneumatic valve to regulate the air flow to the pneumatic cylinder from the compressor, and a frame to hold the machine in position. Cutting and shearing technology used nowadays, includes laser cutting, hydraulic cutters, among others. These machines are costly, with expensive maintenance.

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Zhang, Xinlong, Simone Mancini, Fei Liu, and Renqing Zhu. "Experimental and Numerical Investigation into the Effects of Air–Fluid Interaction on the Dynamic Responses of a Damaged Ship." Journal of Marine Science and Engineering 12, no. 6 (2024): 992. http://dx.doi.org/10.3390/jmse12060992.

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To accurately assess the dynamic stability of the damaged ship, this paper performs an experimental campaign and presents a feasible numerical method to analyze the effects of microscopic air–fluid interactions on the motion responses of the damaged ship. The numerical approach can be applied to solve the coupled hydrodynamic behavior between the flooding process and the motion responses of the damaged ship. The volume of fluid (VOF) method was applied to capture the interface of the free surface, while the dynamic fluid–body Interaction (DFBI) morphing technique was applied to deal with mesh

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Mirmanto Mirmanto, Nurchayati Nurchayati, and Zulvavril Tri Handaru. "Effect of Coil Evaporator Positions on Freshwater Production and Heat Transfer Rate." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 110, no. 1 (2023): 97–103. http://dx.doi.org/10.37934/arfmts.110.1.97103.

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Human life cannot be separated from water; therefore, water must be fulfilled because it is a basic human need. In the dry season, several regions in Indonesia experience a clean water crisis. This crisis needs to be overcome with methods or equipment that can produce water. Various methods for obtaining clean water were carried out in previous research, but not all methods were suitable for the current condition of Indonesia's territory. One method that could be used in all positions and situations and was suitable for household scales was an air-water harvester machine using a cooling machin

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Siregar, Muhammad Sapril, Rafi Zidane Shevchenko, and Albert Wiweko. "Penyebab Menurunnya Kinerja Mesin Pendingin di MV. Vancouver." Mutiara : Jurnal Ilmiah Multidisiplin Indonesia 1, no. 2 (2023): 89–100. http://dx.doi.org/10.61404/jimi.v1i2.13.

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A cooling machine or commonly called an Air Conditioner (AC) is a system of auxiliary machines that can create cool temperatures in certain rooms so that workers on ships feel comfortable. Cooling machines are used to regulate and manage air quality which are includes air circulation, air conditioning, air hygiene standards and air purification. There are several main components in the cooling machine, namely the Compressor, Condenser, Expansion Valve, Evaporator. Each of these important components has different functions and ways of operating, but are connected to each other so that the cooli

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Zeman, Radek, and Pavel Rudolf. "Hydrodynamic cavitation in minifluidic Venturi nozzle." EPJ Web of Conferences 299 (2024): 01041. http://dx.doi.org/10.1051/epjconf/202429901041.

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This article describes the design of a small Venturi nozzle for hydrodynamic cavitation wastewater treatment research. A water circuit powered by compressed air was set up for the experiment. The nozzle design allowed visualization of the cavitating flow directly in the nozzle using a high-speed camera. Experiments were carried out with the nozzle to obtain a visualization of the flow and the dependence of the loss coefficient on the cavitation number. Furthermore, computational modeling of the flow was performed based on the results obtained in the experiment. Cavitation could play an importa

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Krichen, Moez, Yasir Basheer, Saeed Mian Qaisar, and Asad Waqar. "A Survey on Energy Storage: Techniques and Challenges." Energies 16, no. 5 (2023): 2271. http://dx.doi.org/10.3390/en16052271.

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Intermittent renewable energy is becoming increasingly popular, as storing stationary and mobile energy remains a critical focus of attention. Although electricity cannot be stored on any scale, it can be converted to other kinds of energies that can be stored and then reconverted to electricity on demand. Such energy storage systems can be based on batteries, supercapacitors, flywheels, thermal modules, compressed air, and hydro storage. This survey article explores several aspects of energy storage. First, we define the primary difficulties and goals associated with energy storage. Second, w

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