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Thread: help with math problem
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28-04-2007, 02:52 AM #1
help with math problem
i am trying to find the formula for this problem, I have the wet and dry bulb return temps and the dry bulb unit outlet temp, how do i find the wetbulb outlet temp. I am new to forum, have 30 yrs in powerplant operations, last 18 at Ford motor co. Thought i would try and learn the other side. Thanks Don.
Last edited by donjahner1; 28-04-2007 at 03:35 AM.
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28-04-2007, 04:29 AM #2
Re: help with math problem
Hi Don,
How come you have the outlet dry bulb? Did you measure it?
Either you have to measure it or you have to do a coil calculation. This means you have to know your evaporator coil's physical info and then simulate the performance of the coil, this will give the outlet dry and wet bulb temperatures.
If you want to measure it then you can measure the outlet dry bulb temp. and relative humidity. With these you can calculate the wet bulb (with psychometric calculations or software).
Hope this help.
CheersLast edited by lana; 28-04-2007 at 05:51 AM.
Even Einstein Asked Questions
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28-04-2007, 04:48 AM #3
Re: help with math problem
i am trying to find the formula for this problem, I have the wet and Dry bulb return temps and the Dry bulb unit outlet temp, how do i find the wetbulb outlet temp. I am new to forum, have 30 yrs in powerplant operations, last 18 at Ford motor co. Thought i would try and learn the other side. Thanks Don.
Is it possible that you are asking how to read tables? Perhaps Lana is more on target with her answer.
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29-04-2007, 08:46 PM #4
Re: help with math problem
WOW A psychometric calculator, Thats what i needed. Told ya i was a begineer, Thanks.
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29-04-2007, 09:00 PM #5
Re: help with math problem
Try here for software..
http://www.linric.comBrian - Newton Abbot, Devon, UK
Retired March 2015
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02-05-2007, 05:58 PM #6
Re: help with math problem
Hi,
you can try this :
http://fridgetech.com/calculators/rel-hum-b.html
it is free.
CheersEven Einstein Asked Questions