Seeking advice on calculating temperature after air pressure reduction
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Since a pressure reducing valve is required on the device to reduce the air pressure, it is necessary to estimate the temperature after pressure reduction in advance. The conditions are as follows: the air volume is approximately 1000 Nm3/h, the temperature before pressure reduction is about 130 degrees, and the pressure is 3.0 MPa (gauge pressure). Reduce the pressure to 1.0 MPa. What’s the temperature approximately? If the air volume is reduced to 500 Nm3/h with all other conditions remaining unchanged, what will be the temperature after decompression? I would appreciate it if fellow sailors could provide a detailed calculation method and steps. Thank you~~
This process is isenthalpic; the outlet temperature is independent of flow rate. The exit temperature is 127.98°C.