[TRNSYS-users] Metabolic rate of heat production

[Antoine Gautier]

Dear users

 

I have found a great source for quantifying the average metabolic rate for
almost every human activity I could think of: The Compendium of Physical
Activities.

However the values in this document are often much higher than the ones
encountered in standard building literature (which are already considered as
aimed at HVAC sizing and thus as high values for energy analysis). For
instance for the activity "Filing, standing" they propose 2.3 met VS 1.4 met
in Ashrae Fundamentals (where I also read that the uncertainty is rather low
for well defined activities under 1.5 met). For "Reading, seated": 1.3 VS 1
met in Ashrae. I consider that the given values of metabolic rate correspond
to the actual rate of heat production (under the assumptions that the
mechanical efficiency of muscular work is very low and that the mechanical
work will anyhow end up as heat in buildings). However I am not quite
familiar with the underlying physics and I may miss something here. Has
anyone of you been using these values before? Or maybe a good insight to
share?

 

Best regards

--

Antoine Gautier
Solamen SAS
+33 6 58 24 02 60

 <mailto:antoine.gautier at solamen.fr> antoine.gautier at solamen.fr

 

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