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Which temperature field best represents indoor living zone temperature?

asked 2021-02-22 09:50:05 -0600

sashadf1
1136 ●1 ●40 ●10

updated 2021-02-22 10:20:33 -0600

I am trying to use the difference in outdoor and indoor temperature to model for a Transactive Energy system.

I am using SITE OUTDOOR AIR DRYBULB TEMPERATURE (Environment) [F] for the ambient external air temperature.

However, I do not know whether I should use ZONE THERMOSTAT AIR TEMPERATURE, ZONE AIR TEMPERATURE, ZONE OPERATIVE TEMPERATURE, or ZONE MEAN AIR TEMPERATURE of the living zone as my representative indoor air temperature.

I have noticed that all the fields are pretty much identical except for the operative temperature, which is different by about a few deg F comparing across the same timestep.

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Have you consulted the EnergyPlus documentation?

shorowit ( 2021-02-22 10:58:24 -0600 )edit

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answered 2021-02-24 08:09:53 -0600

sashadf1
1136 ●1 ●40 ●10

Yes, and that helped me rule out Zone Operative Temperature because it includes radiative emissivity of interior solids. I chose the Zone Air Temperature because it was more temporally granular than the Zone Mean Air Temperature.

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Asked: 2021-02-22 09:50:05 -0600

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Last updated: Feb 24 '21

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