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What is the temperature change from high pressure to low pressure as it passes through the pressure relief valve?

2020-04-05View Original

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I’m seeking advice from experts: When hot (cold) high-pressure fluid passes through a pressure reducing valve to become hot (cold) low-pressure fluid, what changes occur in the temperatures before and after?
Reply #22020-04-05
A pressure relief valve reduces pressure; what does it have to do with temperature?
Reply #32020-04-05
Reducing pressure means doing work; where does that work go?
Reply #42020-04-06
The temperature at the front is the same as the temperature at the back
Reply #52020-04-07
It’s about 2 to 4 degrees difference; basically, it won’t change
Reply #62020-04-12
It’s mainly the change in pressure; temperature has little impact
Reply #72020-04-14
The temperature remains almost constant; the angle valve reduces pressure, not temperature. For details, refer to the process principle flowchart
Reply #82020-04-18
Due to the reduction in pressure, the saturation temperature of some components drops; these components vaporize again, and this process absorbs heat!

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