[Help] How to determine the temperature difference after the pressure reducing valve?
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This post was last edited by mmqfli on 2010-7-19 21:48. I have a question for everyone: At room temperature, with air as the medium flowing through a pressure reducing valve, the pressure drops from 28 MPa to 6 MPa, and the mass flow rate is 6 kg/sec. What is the approximate temperature difference? I’m not sure if these conditions are sufficient to calculate the temperature difference. It must be a question about the Joule-Thomson effect, right? Can this problem be simulated using Aspen? Please give some advice if possible. Modification: Temperature before the valve is 20°C. If any of you are willing, could you share your Aspen calculation files so I can learn from them? I’m just starting to use this software, so I need everyone’s guidance
The conditions are lacking; there needs to be a temperature before the valve. Different temperatures before the valve result in different temperature differences. It’s easy to get results from simulations.
Reply to 2# lalabrw: The temperature before the valve is at room temperature; consider it to be 20°C.
Reply to 3# mmqfli: Based on simulations, the temperature behind the valve is -10. 17
Reply to 4# lalabrw: Hello, could you show me that file? I’d like to learn from it. Thank you