[EnergyPlus_Support] Re: air to water heat pump

["aymericnovel" <aymericnovel@xxxxxxxxx>]

Indeed, I had the same concern recently. Use the heat pump water 
heater component along with water tank:mixed (to connect condenser to 
water loop, DX:Coil:heatpumpwaterheater and a Fan:OnOff. That makes 4 
object to use.

Still, there is a limitation for that: If the air entering the 
evaporator is below 5°C, the heat pump stops. In China, they do use 
these heat pumps for lower temperature even if COP is bad, that is a 
problem I could not avoid and if anyone has an idea, he/she is 
welcome to propose!

Mr Yiqun Pan, you are working in Shanghai? I am in Beijing and I 
would be glad to discuss with you about models of EPlus that we 
should work on according to simulation use in China

Best Regards
Aymeric

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Griffith, Brent" 
<brent_griffith@...> wrote:
>
> There is a heat pump water heater component that can be used with
> hydronic heat. 
> 
>  
> 
>  
> 
> ________________________________
> 
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Yiqun Pan
> Sent: Wednesday, October 22, 2008 10:44 PM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] air to water heat pump
> 
>  
> 
> How can we simulate air to water heat pump with EnergyPlus? There 
are 
> water to water heat pump, water to air heat pump, air to air heat 
pump, 
> but no air to water heat pump in E+. But air to water heat pump is 
a 
> very popular cooling and heating source equipment around the area 
of 
> Shanghai, China. Is there any other ways to simulate this system 
with 
> E+?
>



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