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How to calculate zone wise load from IdealLoad system or by Custom metering?

asked 2015-02-02 05:59:04 -0600

Waseem gravatar image

updated 2015-07-12 18:09:08 -0600

Hello All, I want to calculate (break down) zone wise load in my EnergyPlus idf. I have idealLoad system and tried to calculate zone wise load by typing in Output:Variable,*,Zone Ideal Loads Supply Air Total Heating Energy,RunPeriod; but it is always less than Output:Meter,DistrictHeating:Facility,RunPeriod;. The same goes for Cooling energy as well. Is there something wrong?

I have also tried to add a Meter:Custom to find individual zone's load by looking at the .mtd file and have added the following code.

Meter:Custom, Waseem, DistrictHeating, *, Zone Ideal Loads Supply Air Total Heating Energy;

This is not working as well. Any ideas will be appreciated.


Kindest Regards


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answered 2015-06-07 12:02:39 -0600

updated 2015-06-17 13:08:50 -0600

Hi Waseem,

As far as I know the zone level loads should add up to the district report. However, you may have other loads or losses in your district heating / cooling system? For example, do you have domestic hot water on the district heating system? Check over your district heating / plant loop idf lines to see if there are any losses assigned for piping etc. I would also double check the units of the two reports.

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Asked: 2015-02-02 05:59:04 -0600

Seen: 364 times

Last updated: Jun 17 '15