JT effect
JT effect
(OP)
I am not an engineer, so forgive my ignorance. I need to know if there is a formula for determining the delta T when taking a pressure drop across a valve. Specifically, what information do I need other than the inlet/outlet pressures, specific gravity (this is natural gas) and inlet temperature? Thanks for your help.





RE: JT effect
You find the starting pressure and temperature and then drop straight down (assuming the x axis is enthalphy, otherwise you follow a constant enthalphy line) to your outlet pressure and read off the resulting temperature.
I don't remember seeing a simple equation like you are hoping to find and nothing is popping out of some of my engineering textbooks.
RE: JT effect
TD2K, thanks for your help. I was hoping to find a formula to put in a spreadsheet. BTW, what section of Perry's are these charts. I couldn't find it. Thanks.
RE: JT effect
RE: JT effect
Best Regards
Morten
RE: JT effect
i want to know what is the effect of heat transfer by conduction , by convection and by raiation . and thank you
RE: JT effect
1) Dont ad a question to a random tread - create a new tread
2) Your question is mush to general.Best advice to expect will be a number of references to good text books.
Best Regards
Morten