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7-Bedrock

## Temperature units

Hi everyone.

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

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

1 ACCEPTED SOLUTION

Accepted Solutions
23-Emerald II
(To:BPP)

Here's a confirmatory worksheet ...

Stuart

5 REPLIES 5
23-Emerald II
(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
23-Emerald II
(To:BPP)
Yes, you have to use the delta C unit to represent temperature differences.

https://support.ptc.com/help/mathcad/r6.0/en/index.html#page/PTC_Mathcad_Help%2Fexample_working_with...
23-Emerald II
(To:BPP)

Here's a confirmatory worksheet ...

Stuart

7-Bedrock
(To:StuartBruff)

Great. Thank you very much Stuart.

24-Ruby III
(To:BPP)

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