I have not look at the IDF yet.
Check the OD temperature, if you are using type4 thermostat, when the OD temperature is low the heater may turn on. You can verfy or prevent this by making the heating set point lower to 10°C, say.
If you have high internal heat load, the cooling may be turned on in Winter.
Dr. Li
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: xing.shi.2006@xxxxxxxxx
Date: Wed, 7 Sep 2011 18:35:36 +0800
Subject: [EnergyPlus_Support] Why T becomes so low
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Primary EnergyPlus support is found at:
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The primary EnergyPlus web site is found at:
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Check the OD temperature, if you are using type4 thermostat, when the OD temperature is low the heater may turn on. You can verfy or prevent this by making the heating set point lower to 10°C, say.
If you have high internal heat load, the cooling may be turned on in Winter.
Dr. Li
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: xing.shi.2006@xxxxxxxxx
Date: Wed, 7 Sep 2011 18:35:36 +0800
Subject: [EnergyPlus_Support] Why T becomes so low
Attached is our IDF file. It is a 5-story building with two chillers for cooling and electric heating. The srange thing is that the simulation shows that the zone T is well controlled as the schedule defines in winter (20 degree C). However, in summer the schedule wants to maintain the zone T at 26 degree C but the output shows that the T overshoots to 20 degree C.
We replaced the HVAC system with IdealSystem and the zone T is well controlled. I guess this means that the schedule has no error.
We have been working on this problem for several days and are really puzzled.
Please help. Thanks!
XS
__._,_.___
Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx
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 currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files.
EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
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