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State of steam after pressure reduction

2019-07-16View Original

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RT, is the state of saturated steam after passing through a pressure reducing valve superheated steam? Still saturated steam? If it is saturated steam, where does the temperature energy go?
Reply #22019-07-16
Superheated steam: sudden drop in pressure, with the temperature dropping at a rate that cannot keep up with the rate of pressure decrease
Reply #32019-07-16
Do you mean saturated steam still? Can the steam flow rate after pressure reduction be used to calculate the volumetric flow rate using the ideal gas equation? Or does the volumetric flow rate remain unchanged after pressure reduction?
Reply #42019-07-16
http://blog.sina.com.cn/s/blog_611969ad0101evkt.html
Reply #52019-07-16
The conditions before and after the valve are considered on an isenthalpic basis, with the outlet being superheated. The throttling loss isn’t that large
Reply #62019-07-16
Can the volume of steam after depressurization be calculated using the ideal gas equation? According to you, since the temperature doesn’t change, is P1V1=P2V2?
Reply #72019-07-16
Can the volume of steam after depressurization be calculated using the ideal gas equation? According to you, since the temperature doesn’t change, is P1V1=P2V2?
Reply #82019-07-16
There’s no point in saying the temperature remains constant here: L. The temperature is actually decreasing, so it can’t be treated as an ideal gas

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