Re: RES: [EnergyPlus_Support] Earth tubes simulation

["wasilqayyum" <wasilqayyum@xxxxxxxxxxx>]

Dear Alberto

Currently I have 2 files for the same zone. In the first one (without the tubes) I only have "HVACTemplate:Thermostat and HVACTemplate:Zone:IdealLoadsAirSystem". I haven't described the HVAC components in detail. In this case I noted down the "Zone/Sys Sensible Cooling Rate" output. This will tell me the mechanical cooling load required to maintain thermostat temperature (24 degrees).

In the second file, I removed the earlier HVACTemplates and replaced it with ZoneEarthTube instead. Then I noted down the "Earth Tube Zone Sensible Cooling Rate" output. This will tell me how much cooling load can be provided by the tubes and thus be subtracted from my earlier file to show the reduced amount. 

Is this approach correct? Will this approach show me the difference in cooling load requirements properly?

Please correct me if I'm wrong.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Alberto Hernandez Neto - USP" <ahneto@...> wrote:
>
> Dear E+ user,
> 
> My suggestion is to include the earth tube object and  the air conditioning
> system object that you willing to simulate. Then you can run a simulation
> with no mass flow rate in the earth tube system and another with the proper
> mass flow rate for the eart tube system and compare outputs.
> 
> Regards,
> 
> Alberto
> 
> -----Mensagem original-----
> De: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] Em nome de wasilqayyum
> Enviada em: terça-feira, 21 de junho de 2011 11:57
> Para: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Assunto: [EnergyPlus_Support] Earth tubes simulation
> 
> Hello, 
> 
> Im trying to simulate earth tubes for cooling using EnergyPlus for a desert
> climate. 
> 
> My question is that, how can I show the difference (reduction) in cooling
> requirement for a building zone with and without earth tubes. 
> 
> Thanks.
> 
> 
> 
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