[TRNSYS-users] PV powered air conditioning

[David BRADLEY]

Michael,
I think you would need to rewrite the heat pump model so that it takes 
the available power as an input and returns the machine's available 
capacity as an output. We had to do this with a pump model a few years 
ago because we had the same situation; a pump that was directly 
connected to a PV.

My impression is that variable speed compressor heat pumps are fairly 
new to the market and that you find the performance files from a 
manufacturer who makes one and see if you can turn their catalog data 
around so that power and entering conditions are the independent (input) 
variables and capacity is the dependent (output) variable. Normally, 
heat pump performance files have the entering conditions as inputs and 
both the power and capacity as outputs.

Kind regards,
David


On 9/28/2011 06:09, e0526036 at student.tuwien.ac.at wrote:
> Dear TRNSYS-users,
>
> I am trying to model a PV powered heat pump for cooling purpose 
> (variable speed => no battery required, power from PV is used 
> directly). I would like to try Type 94a (PV), 48a (inverter) and 665-8 
> (heat pump) but I can't find a "power input" for the heat pump, there 
> is only the required power as an output. In case, is there 
> alternatives for the 665-8?
>
> Thank you very much for your suggestions!
> Kind regards
>
> Michael Mischkot
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>

-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

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d.bradley at tess-inc.com

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