Design and experimental investigation of compressed air engine

Vishnuvardhan, M.V.P.S.; Prasad, Kaushal; Purushothaman, J.

doi:10.1016/j.matpr.2020.04.739

Cited by 8 publications

(3 citation statements)

References 3 publications

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“…To test the power performance of CAE, Vishnuvardhan et al studied an investigation of CAEs. Experimental results indicated that the exhaust temperature of CAE is lower than the atmospheric temperature 7 . Aravindhan et al proposed a novel approach to improve the power performance of air engines, and found that the efficiency of air engines could be increased by 28.4% 8 .…”

Section: Introductionmentioning

confidence: 99%

“…Experimental results indicated that the exhaust temperature of CAE is lower than the atmospheric temperature. 7 Aravindhan et al proposed a novel approach to improve the power performance of air engines, and found that the efficiency of air engines could be increased by 28.4%. 8 Shen et al developed a motorcycle prototype using compressed air as the power source.…”

Section: Introductionmentioning

confidence: 99%

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Experimental study of compressed air engine working in parallel operation mode

Yan

Zhang

et al. 2022

Intl J of Energy Research

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Summary Power performance of pneumatic motor (PM) limits its application in compressed air vehicle (CAV) as an auxiliary power. This study presents an investigation of the power system with parallel operation mode based on experiments to improve the power performance of PM. First, the test bench of PM in parallel operation mode is built. Then, a series of experiments are conducted to investigate the effect of key parameters on the power performance, economy and energy conversion efficiency of CAV. The interaction among the key parameters of the PM and the influence of them on the power performance are discussed. Subsequently, the power performance, economy and energy conversion efficiency of the PM working in single and parallel operation modes are compared. Experimental results show that the maximum power output of the PM is 979 W, and the energy conversion efficiency of PMs 1 and 2 are 6.54% and 6.80% when the PM works in parallel operation mode. The parallel operation mode of PM can improve the power performance, economy and energy conversion efficiency of CAV.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental study of compressed air engine working in parallel operation mode

Yan

Zhang

et al. 2022

Intl J of Energy Research

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“…18 There are various studies on the transformation of piston engines using fossil fuel into compressed air engines. 11,[19][20][21][22][23][24] However, there is no study on friction characteristics between piston liner cylinder of compressed air engines. Lack of combustion reaction in compressed air engines and low rate of temperatures of piston liner cylinder and lubrication oil when compared to ICE differentiate friction characteristics of the piston from other piston engines.…”

Section: Introductionmentioning

confidence: 99%

Investigation of friction properties in the piston-cylinder liner region of a single-cylinder compressed air engine using the GT-SUITE program

Kunt

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Dependence on nonrenewable fuels continues to a great extent today. Overuse of fossil fuels has brought along various environmental problems. In order to reduce such problems, compressed air engines have developed significantly during the last 20 years. Compressed air engines are environment-friendly engines that do not use fossil fuel and achieve expansion using compressed air. It is of great importance for engine efficiency to decrease friction losses of piston engines. There are not many studies in the literature focusing on friction manner of piston ring liner parts of compressed air engines with a piston. In this article, the transformation of a four-stroke gasoline engine with 388 cm3 displacement into a compressed air engine has been carried out and the friction manner between piston cylinder liner has been modeled with the help of GT-SUITE program using in-cylinder pressure-cylinder volume (P-V) data obtained from different engine loads under operating pressure of 12 bar and geometrical size of the engine. It has been determined according to the results of the simulation that asperity friction losses have not changed significantly in top dead center and bottom dead center regions due to low testing speed, and hydrodynamic power losses have occurred in the middle of the course. Lack of combustion reactions in such engines has resulted in compression leakages and unavailability of a quality oil film layer. Since there are no combustion reactions, the eccentric movement of the pistons of the compressed air engines is changed by the lubricating oil, engine speed, compression leaks, and viscosity parameters.

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