[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: [EnergyPlus_Support] Comfort calculation (PMV)
Hi,
For the mean radiant temperature, there is a different report variable that you should probably use called "THERMALCOMFORTMRT."
I am not familiar with the WinComf software, but I thought those authors had developed a new, more advanced, model for thermal comfort, so make sure that you are really comparing Fanger model results from both programs.
brent
-----Original Message-----
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]On Behalf Of abeltablada
Sent: Wednesday, May 18, 2005 3:40 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Comfort calculation (PMV)
Hello,
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
Abel
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are not allowed -- please post any files to the appropriate folder in the Files area of the Support Web Site.
_____
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/EnergyPlus_Support/
* To unsubscribe from this group, send an email to:
EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx <mailto:EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx?subject=Unsubscribe>
* Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
[Non-text portions of this message have been removed]
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are not allowed -- please post any files to the appropriate folder in the Files area of the Support Web Site.
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/EnergyPlus_Support/
<*> To unsubscribe from this group, send an email to:
EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/