Hello SNORGY
Thanks for the method you provided.
i tried you method, but the result seems not right to me.
Fluid NF3
Pin=10500kPa(a);
Pout=65kPa(a);
Tin=300K
R=8.314kJ/(kmol.K)
Tc=233.85K
Pc=4530kPa(a)
Cp=755J/(kg.K)(when 25 deg C)
Calculation result:
a=352.0636
b=0.05365
µ=0.0042
deltaT=44.7K...
Hi Apetri
what i'm interesting now is to calculate it by manually or excel which will help myself to get the better understanding of thermodynamics:-)
only reason i can't figure this out is that there shall have something miss i don't realize yet.
Thanks all the same
Regards
Ding
Hi All
i found a calculation example from an engineering book named<PROCESS ENGINEERING and DESIGN USING VISUAL BASIC,2nd EDTION> where provide the manual calculation method for temperature calculation for JT Effect. but still can not figure out few things,
------example from book-------...
Latexman
Its OK, everybody is a student when they ask the question, and everybody is a teacher when they provide the answer, method or solution.
so, you're right.
i appreciate that you still remember the issue i have.
regards
Ding
Hi Latexman
Thanks for your remind, i actually have the answer from software(Aspen), and i tried to test the correction by manual calcs, its shame that my calcs failed. Its the reason i raise it again.
The thermodynamics lessons were really not that good myself, and i didn't touch it for years...
Hi All
Found a thread about the temperature calculation for gas expansion(high pressure gas thru a signle stage pressure regulating valve),e.g. Pi=1000psig, Po=60psig,Ti=300K,To=?.
reference: thread124-86992
is there anybody can provide the manual calcs process sample? it seems only some...
Hello All
I was suffered by this calculation for a long time.
is there anybody can help me on this?
Basis:
u=dT/dP
Case Assume:
A pressure regulator to reduce the gas online pressure from high pressure to desired pressure.
Known Conditions:
1.Gas Name: SiH4(example)
2.Inlet Pressure of...
