Energy conversionIsentropic compressionRotationThermal cycleEnergy conversion from rotational to thermal is investigated for a compressible ideal gas. The high speed rotation is considered as the driven force of the isentropic compression. The analytical model explaining the thermodynamic parameters (pressure,...
cv=specific heat at constant volume process(kJ/kg K) cp=specific heat at constant pressure process(kJ/kg K) T=absolute temperature(K) R=individual gas constant(kJ/kg K) ρ=density of gas(kg/m3) p=absolute pressure(Pa, N/m2)
If we can find a relationship that combines enthalpy with the pressure and temperature of a gas, we have found the necessary tools to describe the gas compression process. For an ideal gas, with constant heat capacity, the relationship between enthalpy, pressures, and temperatures is given as:...
However, ASME PTC-10 does not clearly define whether to use the ideal gas or a real gas method to calculate the method to calculate the ratio of heat capacities. The relationship Cp-Cv=R, is valid for ideal gases, but not real gases. The validity of Cp-Cv=R is examined across a ...
1.The basic data thus obtained could be used for the calculation of the isentropic efficiency in the expanding process of natural gas in refrigeration. 同时介绍利用上述基本热力学数据计算石油天然气膨胀机制冷过程等熵效率; 2.In the same way the critical point of the isentropic curves comes nearer ...
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Isentropic calculations for normal liquid He-3 using the lowest order constrained variational method Isentropic calculations for normal liquid He-3 using the lowest order constrained variational methodliquid ~3Heisentropic process GH Bordbar,S Hosseini - 《Iranian Journal of Science & Technology ...
In an ideal rotodynamic compressor the compression process would be isentropic, which means that it would obey the law: Equ 2.66pvγ=constant where: γ = the isentropic exponent of the gas The polytropic exponent is related to the isentropic exponent by the expression: Equ 2.67n −1n=γ...
on the isentropic ideal expansion process line was corrected, This method simplifies the correction calculation step and increases the accuracy of the ... T Pan,J Zhang,J Kang,... - 《Matec Web of Conferences》 被引量: 0发表: 2022年 Thermoelectric plant with "gas/steam cycle" for the com...
The polytropic efficiency—also called “small-stage efficiency”—is defined as the isentropic efficiency of an elemental (or differential) stage in the process such that it is constant throughout the whole process. The relationship between the isentropic and polytropic compressor efficiency is given ...