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Thread: Superheat - again!
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18-12-2017, 09:15 PM #1
Superheat - again!
You know what guys, I was asked a question about this today just as I was going home and didn't know how to answer.
I've always used deg F when calculating s/heat, as that's just the way I was taught.
I was asked why we don't use dec C in the UK,, as it's generally C that we use for most temp measurements here.
So, lets say we are working in F and looking for a target s/heat on a system of 7f (evaporator), would we still be looking for 7 if converting the pressure / temps to C. In other words, it's just the numerical value we require?
I feel daft asking, but it's never crossed my mind before really.
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18-12-2017, 10:49 PM #2
Re: Superheat - again!
Nope, if you work in F stay in F.
Best to work in C as one degree C is near enough one degree Kelvin which is what you should be measuring your superheat or subcooling in.Brian - Newton Abbot, Devon, UK
Retired March 2015
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18-12-2017, 11:15 PM #3
Re: Superheat - again!
Ignorance on this side of the pond?
I thought one degree C was the same as Kelvin.
Then i looked at Wikipedia and am now confused.
Help a Yank out here!Last edited by NH3LVR; 18-12-2017 at 11:16 PM. Reason: Grammer
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18-12-2017, 11:47 PM #4
Re: Superheat - again!
https://www.thoughtco.com/convert-ke...celsius-609233
When talking kelvin normally refers to temperature difference which is same scale as deg C.
So superheat in degrees kelvin refers to degrees C.
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19-12-2017, 06:15 PM #5