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[EnergyPlus_Support] Comfort calculation (PMV)
I am comparing the PMV values (Fanger model) calculated by Energyplus
and by the software `WinComf' developed by Fountain,M.E. and
Huizenga, C., ASHRAE, 1997.
I have found differences between the results of both programs for a
period of 10 days in August.
average PMV ground floor: Energyplus=1.98 and WinComf=1.20,
average PMV top floor: Energyplus=2.33 and WinComf=1.40
For the calculation of the PMV in the software I am taking the
following values from energyplus:
1. ZONE 1:Mean Air Temperature[C](Hourly)
2. ZONE 1:Mean Radiant Temperature[C](Hourly)
3. ZONE 1:Zone Air Relative Humidity[%](Hourly)
4. Air Velocity values from the schedule (m/s)
5. Activity level from the schedule (w/person). The input of
this category in `WinComf' software is given in Met.
6. Clothing insulation from the schedule (clo)
My questions are:
? Are there any other input parameter in Energyplus which might
affect the results of PMV?
? Is the Mean Radiant Temperature from the output the same used
for comfort calculation in Energyplus?
? Which value of the "Fraction radiant" is acceptable for a
person wearing light summer clothes? I used 0.6 as in the example.
? Which value should be used for the "Work efficiency schedule"
for house activities like walking about and housecleaning?
Thanks for your support
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