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[EnergyPlus_Support] Sharp Increase on Air Temperature when Heating is initially on?
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- Subject: [EnergyPlus_Support] Sharp Increase on Air Temperature when Heating is initially on?
- From: "Denis" <denis.fan@xxxxxxxxx>
- Date: Thu, 14 Jul 2011 10:16:06 -0000
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- Delivery-date: Thu, 14 Jul 2011 04:16:11 -0600
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Hi everyone,
I am new to E+, and hope if some of you can help me out on this.
I have a simple system, district heating as the supply heat source, which then connected to a radiator (currently using Baseboard:Convective:Water object) for the demand side. A constant flow rate pump is on the inlet side of the supply part, and the remaining node connections are in Pipe:Adiabatic.
The building is a single zone, one story house, with a setpoint schedule for the room thermostat as:
00:00 - 07:00: 10 deg C
07:00 - 23:00: 21 deg C
23:00 - 24:00: 10 deg C
Since the Air Temperature is well above the setpoint between 00:00 - 07:00, and so the heating wouldn't kicked in after 07:00. What I am not so sure about is the rate of temperature increase is too quick (about 2 deg C per 10 minutes). I have tried adding some air infiltration, but occasionally the HVAC system doesn't converge at its maximum iterations. Is there any other heat source component that I can use, which can simulated a more graduated increase in the air temperature?
Many thanks,
Denis
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