I am modeling a small space of 240 sf and want to use window /wall unit for
both heating and cooling . I am analysing the performance of windows in
different climate zones.
So does anyone know which system should be used for that.
I was checking the pacakaged terminal heat pump system with dx coil cooling
and heat pump heating.
other system was dx coil cooling and electric coil heating with packaged
terminal AC.
not very sure how to model these.
any help is highly appreciated.
Regards
Deepika
window heating and cooling unit
Oct 19, 2010
Using eQuest to model a single 240 sq. ft. space with a window unit is a
bit like using a backhoe to dig a hole for a plant in your flower
garden. From a technical perspective, PTAC is the closest thing that
comes to a window unit, but as to whether or not you use a heat pump or
not is totally dependent upon whether or not you want to analyze your
window performance with a PTHP or a PTAC with strip heat. Unless I'm not
fully understanding what it is you are trying to model...
While I have not used them, (we are not in the residential business)
there are some residential energy calculation tools that probably would
be much more appropriate for a micro-scale project like this. I defer to
the other eQuesters who may have more knowledge in this area than me...
Thanks,
Gary Schrader
ya true... but there has to be some system to analyse the savings... I am
modelling a sunroom with 86
5 glazing.
thanks Gary
Deepika
discard the earlier email.
but there has to be some system to analyse the savings... I am modelling a
sunroom with 85% glazing.and analyzing what will be impact of using
switchable glazing instaed of regular glass.
thanks Gary
Deepika
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is there a possibility to create yr own switchable window details in this
software?
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Be careful when allowing eQUEST to auto-size the HVAC system when
modeling such a small area. I recently performed a daylighting study
which included only one classroom and eQUEST would not properly size the
cooling system. I realized that I had to manually size the system to get
an accurate comparison.