Re: [EnergyPlus_Support] high heat gain for core bottom zones from internal plug loads

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Subject: Re: [EnergyPlus_Support] high heat gain for core bottom zones from internal plug loads

From: "Fakeha Sehar fakeha_s@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>

Date: Sat, 28 Mar 2015 15:09:58 +0000 (UTC)

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My query has not been answered. for a rectangular shaped building with five zones on each floor, one core zone and four perimeter zones, the core zone on the bottom floor should be more cooler than the similar mid and top floor's core zones. Does EnergyPlus consider high internal plug load density (sum of adjacent perimeter zones plug densities) for the core zone on the bottom floor? My simulation results show that it does.

The sensible cooling rate is higher for the core zone on bottom floor than the mid and top floors core zones due to its high internal load heat gain.

On Wednesday, March 11, 2015 11:33 AM, "Fakeha Sehar fakeha_s@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

I am using E+ version 8.1. From the html report I observe that the plug load density for the core bottom zone is being considered as the sum of its surrounding perimeter zones plug load densities. This is further confirmed by observing the internal convective heat gain rate, heat added to air by internal loads, which is too high for the bottom core zone than similar mid/top floor's core zones.

I have also checked the surface convection rate for the core zones, for the bottom floor this is low as compared to mid/top floors core zones. So the surfaces for the bottom floor core zone are not the reason for its high heat gain .

Please let me know how this error can be removed.

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Posted by: Fakeha Sehar <fakeha_s@xxxxxxxxx>

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