Load differences between ApHVAC and ApSys linked simulations

ApacheCalc – Heat loss/gain calculations using CIBSE procedures to determine design heating/cooling loads.
ApacheLoads – Design heating/cooling loads calculations using ASHRAE Heat Balance Method.
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charlesdg
VE Newbie
VE Newbie
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Joined: Tue Dec 15, 2020 12:02 pm

Load differences between ApHVAC and ApSys linked simulations

Post by charlesdg »

Hi, good day to you all.
Would like to have a general understanding as to why the loads are different when simulating at these scenarios:
a. non apHVAC linked simulation (just uses ApSys)
b. ApHVAC linked simulation

Results between the two scenarios are far off from each other. ApHVAC linked simulation has way higher loads compared to non- ApHVAC linked simulation.

Hope anyone has idea regarding this. Thanks heaps!

Thanks for all of your support!
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