The compressor compresses different gases with different temperature rises
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Under the same circumstances, why are the temperature rises of reciprocating compressors compressing hydrogen and nitrogen different? The temperature rise of nitrogen is obviously larger than that of hydrogen? If we follow the adiabatic compression temperature rise formula, the temperature rise of compressed two gases should be about the same. I still can't figure it out. Please ask experts to help answer!
The molecular weight is different, and the exhaust temperature of the compressed air will be higher.
"Piston Compressor Design" - 1973 Edition → Chapter 2 Thermal Calculation → Section 4 Variable Working Conditions and Recalculus Calculation When compressing gas with a higher adiabatic index, the exhaust volume will be larger, so the temperature will be higher. However, the poster said that the difference is obvious (or interpreted as a huge difference). Did he make a mistake in reviewing the nitrogen operating conditions of the hydrogen compressor? The inlet and outlet conditions of nitrogen operating conditions are quite different from those of hydrogen operating conditions, so the displacement and temperature rise are significantly different.
Nitrogen has a larger molecular weight and a higher temperature rise