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Posted by Abby Normal on September 14, 2006, 8:18 am
nikos wrote:
> Hi
>
> I'm working on an academic project that aims to improve the energy
> efficiency of a simple split-unit air conditioner (e.g. what people
> would have in their houses)
>
> As a first step I'd like to get a "feel" of the physical problem using
> computer simulations. Since the refrigeration cycle (evaporator,
> compressor, condenser, expansion valve) isn't really trivial to derive
> from scratch, I wonder if anyone has heard of computer software that is
> ready to offer such (dynamic) simulation of the INTERNALS in the air
> conditioner (I'm not interested in the room dynamics for the time
> being). It doesn't have to be really detailed, just capture the main
> effects.
>
> I have searched these groups and found references to some old programs
> but now they've all turned shareware. Since this is a student project
> I'm trying to find something free or inexpensive!
>
> Another possibility would be a sample flowsheet that can be loaded to
> either AspenPlus or HYSYS, since we have both these tools at college
>
> Any tips or links will be appreciated
> thanks
> nikos
A book called Heating and Cooling of Buildings by Kreider and Rabl used
to come with a disk. I think one program on the disk used to simulate
and R22 vapour compression cycle.
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