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What output should I select to obtain the HVAC system load profile in each thermal zone?

asked 2019-04-29 05:00:38 -0500

anacun18 gravatar image

updated 2019-04-29 07:34:54 -0500

Hello. I am doing a simulation to a supermarket, and then I intend to calculate the energy class of the building. For this I need to know the heating / cooling loads of each HVAC system. I have already noticed that the results of the HVAC loads are present in the OpenStudio results as "HVAC load profile" , but I expect the results to be by zone and not global. Does anyone know what output I have to select?

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answered 2019-04-29 12:35:49 -0500

updated 2019-04-29 12:36:54 -0500

Do you have single-zone HVAC systems, or a multi-zone system with terminal units?

If you have single-zone systems, you can just output the heating/cooling coil energy for each system:

Output:Variable,*,Cooling Coil Total Cooling Energy,hourly;
Output:Variable,*,Heating Coil Heating Energy,hourly;

If you have a multi-zone system, you'd have to sum the sensible and latent loads. You can output the sensible loads for each zone using:

Output:Variable,*,Zone Air Terminal Sensible Heating Energy,hourly;
Output:Variable,*,Zone Air Terminal Sensible Cooling Energy,hourly;

The latent loads can be output using:

Output:Variable,*,Zone Total Internal Latent Gain Energy,hourly;
Output:Variable,*,Zone Infiltration Total Heat Gain Energy,hourly;
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Asked: 2019-04-29 05:00:38 -0500

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Last updated: Apr 29