A mathematical model of working processes of a positive displacement piston hybrid power machine with a gas cap and two suction valves is proposed, in which, due to the effect of surface forces on the coolant, its movement in the jacket space is intensified, which improves the cooling of the compressed gas and, as a result, increases the efficiency and delivery rate. The mathematical model is based on general equations of energy, mass and motion conservation, as well as the equations of state for compressed gas and coolant, and includes the calculation of thermodynamic parameters in the chambers of variable and constant volume, taking into account the motion dynamics of self-acting valves, and the calculation of gas and fluid motion in connecting pipelines. The mathematical model can be used for analyzing the influence of the main operational and geometric parameters on the working processes and integral characteristics of the machine under study.
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Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, Vol. 58, No. 5, pp. 22−26, May, 2022.
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Shcherba, V.E., Tegzhanov, AK.S. Mathematical Model of Working Processes of a Positive Displacement Piston Hybrid Power Machine with a Gas Cap and Two Suction Valves. Chem Petrol Eng 58, 388–397 (2022). https://doi.org/10.1007/s10556-022-01104-1
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DOI: https://doi.org/10.1007/s10556-022-01104-1