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Influence of the dead space volume on the working processes and performance of a piston hybrid power machine with two suction valves

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Chemical and Petroleum Engineering Aims and scope

Abstract

The impact of dead space volume on the working processes of a positive-displacement piston hybrid power machine (PDPHPM) with two suction valves is investigated. Due to the fact that the process of back expansion in this machine proceeds with variable gas mass, an expression for determining the volume coefficient at variable mass of expanding gas is obtained. The numerical experiment carried out using the previously developed mathematical model established the effect of the dead space volume on the instantaneous integral characteristics of the machine. It is shown that an increase in the dead space volume leads to increase in the duration of the expansion process (despite a decrease in the mass of the expanding gas), a decrease in the coolant consumption, a significant decrease in the flow coefficient, and a slight decrease in the indicator isothermal efficiency.

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References

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Funding

The study was supported by the grant MK-4256.2022.4.

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Authors and Affiliations

  1. Omsk State Technical University, Omsk, Russian Federation

    V. E. Shcherba & A. S. Tegzhanov

Authors
  1. V. E. Shcherba
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  2. A. S. Tegzhanov
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Correspondence to V. E. Shcherba.

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Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, No. 7, pp. 31–35, 2023.

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Shcherba, V.E., Tegzhanov, A.S. Influence of the dead space volume on the working processes and performance of a piston hybrid power machine with two suction valves. Chem Petrol Eng (2024). https://doi.org/10.1007/s10556-024-01278-w

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  • DOI: https://doi.org/10.1007/s10556-024-01278-w

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