Steam Temp Calculation From Pressure

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During a sterilizing stage I want to calculate the steam temperature using the steam pressure but using a spreadsheet. I would like to use the formula to do it by hand instead of using steam tables, an on-line conversion tool or app. I can’t make sense of the formula given in the Standard BSEN285. Can someone help please?

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Posted by Andy Walsall (England) (Questions: 1, Answers: 0)
Asked on August 8, 2015 12:34 pm
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Dear Andrew,

Thank you for your question, which led us to a fault in the standard EN 285:
The formula given there is simply wrong, better to say something is missing, i.e.: -273,27 K at the end (the absolute temperature -272,27 including a correction factor of -1). So the correct formula is: 42.6776 + (– 3892.7 / (In(P) – 9.48654)) –273.27

Mag. Dr. Tillo Miorini
WFHSS Publication Officer

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Posted by Tillo Miorini (Austria) (Questions: 0, Answers: 8)
Answered on September 14, 2015 11:58 pm
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