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[EnergyPlus_Support] Comparing HeatPump and “Purchased air”
Hi All !
I was running the same building twice: One with heat pump system from
the "Heat pump" example file, and the other with no system, only
with "Purchased air".
I did it in order to learn about my building's energy thermal loads
and my system COP.
I found out 2 interesting facts:
1. The energy parameters I thought that wouldn't change
(Heating:EnergyTransfer and Cooling:EnergyTransfer) ? were very
different between the run with the system and without it.
2. In the purchased air solution, There is a difference within
the heating energy depending on the heating supply air temperature
(while I thought that it's don't have to be, because the energy
supplied to the zones is the air heat flow * the air volume, and if
I "Purchase" hot air ? it doesn't matter what it's temperature
because the volume is not being determined by me).
What are the report parameters that talk about the thermal load by
the building? I need it to compare it with the electricity demand and
calculate my system COP.
Is there have to be a difference within the heating energy depending
on the heating supply air temperature in "Purchased air"?
Thanks
Itamar Goldberger B.S.c
NBRI Technion, Israel
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