Re: [TRNSYS-users] I: strange output for type 927

[Jeff Thornton <thornton@tess-inc.com>]

Chiara,

If you have no heat transfer from the heat pump that means the device is off.  And if the device is off then the outlet temperature is set to the inlet temperature.  So if you’re seeing a large outlet temperature it means that you are giving the model a large inlet temperature.  I suggest you review the TRACE command in TRNSYS and use it to figure out what may be going wrong with your simulation.

Jeff - TESS

Sent from my iPhone

On May 15, 2018, at 1:40 PM, chiara pinto via TRNSYS-users <trnsys-users@lists.onebuilding.org> wrote:

 

 

Inviato da Posta per Windows 10

 

Da: chiara pinto via TRNSYS-users
Inviato: lunedì 14 maggio 2018 20:17
A: trnsys-users@lists.onebuilding.org
Cc: chiara pinto
Oggetto: [TRNSYS-users] strange output for type 927

 

Hi everyone,

i’m using type 927 to simulate a water to water heatpump. I have write the input file and i have modify the input schedule in trnsys, but ,when i run the simulation , i have strange value: for example my oulet load temperature= 1.6*10^8 and this is not normal. I have the same problem if i use the input file that trnsys give me as example with its default values.

One other problem is that the heat pump seems to be off because heat transfer to load end heat transfer from source are zero. There is a type to impose that heat pump had to be on from 8.00 am to 17.00 pm?

 

I really don’t understand where the problem is.

Has anyone a solution for this problem?

 

Thanks for your help,

Best regards,

Chiara

 

 

Inviato da Posta per Windows 10

 

 

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