Cooling Load componenets after thermal lag calculations?

I’ve come to understand that the Honeybee_ReadEPResult and Honeybee_ReadEPCustomResult components output the heat gains and losses for the individual energy sources (people, lighting, equipment, infiltration, opaque conduction, glazing conduction, solar, etc.)…is there a way to output these same individual breakouts but output them as their cooling load contribution after radiative thermal lag adjustment calculations have been made??

I can output the “Output:Variable,*,Zone Ideal Loads Zone Total Cooling Energy,hourly; !- HVAC Sum [J]” which is the sum of all these cooling load sources, but it would be great to visualize the individual cooling load components…any thoughts?


@josh.greenfield ,
I apologize for such a late reply. Yes, you can absolutely do this. If you are interested in understanding the cooling load contribution on a peak summer design day, this example file has exactly what you are looking for:,0

You will see that you get outputs of both instantaneous heat entering the space and the estimated cooling load, which accounts for thermal lag.

thanks Chris! is there a way to see each component of the total cooling load, with the thermal lag included, or is only possible to see the heat gains (with no thermal lag) and just the TOTAL cooling load (with thermal lag)?

@josh.greenfield ,
The concept of “heat gains with thermal lag” doesn’t really exist in a physical sense. You can imagine that you have several sources of heat (let’s say electric lights, equipment, and solar) and they all radiate heat to the floor slab. The slab absorbs the heat and then, depending on the temperature that the slab gets to, it starts re-radiating heat to the other surfaces of the zone and convects to the zone air. At a certain point, it isn’t really possible to say how much of the heat reradiated by a given zone surface is the result of the lights, equient or solar because it’s all been mixed around and it has interacted with the other heat sources

What you can do is try to visualize the whole energy balance at each time step over the day. This will show you how much of the incoming load is being stored in the zone mass vs. being sucked up by the cooling system.

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