Study on the Circulation Efficiency of Different Nonideal Gases

Yuwei  Yin

doi:10.54097/hset.v5i.726

Authors

Yuwei Yin

DOI:

https://doi.org/10.54097/hset.v5i.726

Keywords:

Van Der Waals Gas; Onnes Gas; Carnot Cycle; Stirling Cycle; Otto Cycle.

Abstract

The thermodynamic properties of two kinds of representative non-ideal real gases van der Waals gas and Onnes gas are expounded and discussed by common thermodynamic methods, and the specific expressions of heat engine efficiency based on Carnot cycle, Stirling cycle and Otto cycle with these two real gases as working fluids are derived through theoretical derivation and calculation. On this basis, the variation rules of various thermal efficiency corresponding to heat engine with cycle parameters (such as high-temperature heat source temperature T1, low-temperature heat source temperature T2, the isovolumetric molar heat capacity of gas, initial volume V in the cycle process, gas volume expansion ratio r) are analyzed, and the general rules which are helpful to improve the efficiency of heat engine are found. This work will provide some theoretical reference for the optimal design of the actual operating conditions of the heat engine.

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