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Thermo homework help?
Dorkman
Registered User regular
Registered User regular
Well I have been beating my head all night over this question, and although it seems simple enough, I can't seem to find a way to attack it.
"A tank having a volume of 30 ft^3 is half filled with water, and the remainder is filled with water vapor at 100psia. Calculate the quality of the mixture and the enthalpy of the mixtures in BTU/lb".
So I know that the water and vapor are bother at 15ft^3, but I don't know how to tackle calculating the quality. I have tried going the route of finding the quality using specific volume and everything but I am stumped. It almost seems like I don't have enough information, but I probably should considering it's a problem from the book.
Any hints?
"A tank having a volume of 30 ft^3 is half filled with water, and the remainder is filled with water vapor at 100psia. Calculate the quality of the mixture and the enthalpy of the mixtures in BTU/lb".
So I know that the water and vapor are bother at 15ft^3, but I don't know how to tackle calculating the quality. I have tried going the route of finding the quality using specific volume and everything but I am stumped. It almost seems like I don't have enough information, but I probably should considering it's a problem from the book.
Any hints?
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For the enthalpy, you'll want to check the steam tables for the enthalpy of both saturated water and steam at 100psia. If I had my thermo text with me I could probably look up the way to solve this. If you haven't gotten help from anyone else by the time I get home, I'll see if I can dig up that book and help more.
Not sure if it's right, but it's what I did. Thanks for the help though, much appreciated!