Hi,
I was wondering if someone could help me. I am currently modeling a
Packaged DX heat pump system for a two storey building. As it is a heat
pump the heating is electric so there is no gas consumption. It seems
to be not giving me the correct heat load (it gives me 818 kWh space
heating for a 181,000 sf building). The cooling seems to be ok though
(404,708 kWh) and I was thinking that it would be including some of the
heating in this number too? Has anyone come across this problem in
modeling electric heat pump before?
If anyone could help me out on this, it would be greatly appreciated.
Best Regards,
Celia King-Scott
I think you could output the hourly building heat load results of this building, also you need to check the weather data, and internal loads, especially lighting and plug load densities.
2009-03-26
rongxinyin
???? King-Scott, Celia
????? 2009-03-26 12:05:22
???? equest-users at lists.onebuilding.org
???
??? [Equest-users] DX heat pump system in eQUEST
Hi,
I was wondering if someone could help me. I am currently modeling a Packaged DX heat pump system for a two storey building. As it is a heat pump the heating is electric so there is no gas consumption. It seems to be not giving me the correct heat load (it gives me 818 kWh space heating for a 181,000 sf building). The cooling seems to be ok though (404,708 kWh) and I was thinking that it would be including some of the heating in this number too? Has anyone come across this problem in modeling electric heat pump before?
If anyone could help me out on this, it would be greatly appreciated.
Best Regards,
Celia King-Scott
Also, check your unmet load hours. Maybe your heat is not coming on.
--
Karen
A few things to check:
Reasonable unmet hours?
Outside air quantity?
How is the seasonal profile of usage by end-use? Is the cooling
showing up year round? Also does the seasonal variation match your
climate?
-DSE
Sent from my iPhone