[TRNSYS-users] Calculation of PMV and PPD in accordance with ISO 7730

[Kim Goethals]

Dear TRNSYS users,

When I compare the outputted PMV and PPD of TRNSYS with the results 
which I have calculated using the equations in accordance with ISO 7730, 
the PMV and PPD differ on average respectively 0.18 and 10. At first I 
have used the mean surface temperature of the room. I have also 
calculated the mean radiant temperature estimated from the values of the 
plane radiant temperatures for a sitting and a standing person with 
different orientations. However, none of the calculated values of the 
mean radiant temperature produces the same PMV and PPD as outputted in 
TRNSYS. Can somebody explain me this?

Thanks in advance,
best regards,
Kim

-- 
kim goethals
engeneer-architect
department of architecture and urban planning
faculty of engineering
ghent university
t + 32 (0)9 264 78 61
f + 32 (0)9 264 41 85
www.architectuur.ugent.be

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