Compressor commissioning issues
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How can we understand in simple terms the decrease in the isentropic exponent? During tests with air, why is it important to be aware of power overload and rising exhaust temperature?
As for the phenomenon you mentioned, it is mainly caused by the significant difference between your actual medium and air!
Your question over-theorizes and complicates a simple physical process. It is difficult to explain this using isentropic theory; the key issue lies in the methods for measuring certain amounts of \"heat\". For example, the heat generated by the compression of air is removed, and this amount of energy is considered lost energy. Some of the heat is taken away by the cooling water, and there’s also the issue of how to measure and calculate the heat absorbed by the air in the surrounding environment. Power overload means that the pressure exceeds the designed range, and the exhaust temperature will definitely rise. As the kinetic energy in this portion is converted into pressure energy, it is also converted into a certain amount of heat energy. The more heat energy is generated, the more is lost; if we use this index to assess the situation, then it indicates a decline. You might as well use a pump to do a test and see how this isentropic exponent changes. Things related to theoretical design are no simple affair. The concept of doing operations may not apply in the groups around you. For reference.