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Temperature units

BPP
8-Gravel
8-Gravel

Temperature units

Hi everyone.

I am doing a simple calculation, but I have problems in the temperature units, which generates erroneous results.

 

Example.JPG

 

A quick solution in this case would be to work the temperature without units. However, is there a way to work with units in this type of equations without getting wrong results?

Thanks for the help

ACCEPTED SOLUTION

Accepted Solutions
StuartBruff
23-Emerald III
(To:BPP)

Here's a confirmatory worksheet ...

 

 

StuartWorking with Temperatures.png

View solution in original post

5 REPLIES 5
StuartBruff
23-Emerald III
(To:BPP)

I haven't got Mathcad available at the moment to check, but Mathcad internally stores temperatures as kelvin. Consequently, your T2+Tperd will be about 338 K + 278 K = 616 K, giving deltaT = 333 K (which is about 60 deg C).

You need to take this into account. There is a ways of dealing with this in unit, but I can't remember what it is ... look it up in help?

Stuart
StuartBruff
23-Emerald III
(To:BPP)

StuartBruff
23-Emerald III
(To:BPP)

Here's a confirmatory worksheet ...

 

 

StuartWorking with Temperatures.png

Great. Thank you very much Stuart.

ValeryOchkov
24-Ruby IV
(To:BPP)

TT.png

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