How to calculate the amount of cooling capacity provided by the expander in an air separation system? !
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Hello, experts!! I have a question I’d like to ask you: How can one calculate what proportion of the total cooling capacity required by an air separation system is provided by the expansion machine in that system? !
Simply put, the cooling capacity is generated in two ways: one part comes from the expansion machine, which can be determined by the enthalpy drop across its inlet and outlet; the other part results from the throttling expansion of the gas, and this too is easy to calculate. Then the proportion of cooling capacity provided by the expander can be calculated. For a detailed calculation, an energy balance for the entire air separation process would be required, but it seems that won’t be done either.
Generally, 10–15% of the air flow enters the tower!
Calculated based on heat loss, it includes aspects such as liquid product, heat exchange loss due to backflowing gas, and heat leakage loss