[TRNSYS-users] CO2 Heat pump

[Jeff Thornton]

Mohamed, 

Most HVAC devices in TRNSYS that use a refrigerant (heat pumps,
chillers, etc.) are typically modeled using the concept of a look-up
performance data file approach. The very short timesteps required to
accurately model the dynamics of a refrigeration cycle would cause many
simulation to run a long time. I'm not sure what you are trying to
accomplish with your research but if it's a detailed study of the CO2
cycle then I would recommend a program like EES (which can couple with
TRNSYS). If you are just wanting to use a CO2 heat pump in your studies
then I would suggest finding performance data for the unit that you are
considering and then building a performance map and using one of the
existing HVAC components. 

Jeff 

---
Jeff Thornton
President - TESS LLC
3 N. Pinckney Street, Suite 202, Madison WI USA 53703
Office: (608) 274-2577 Fax: (608) 278-1475
www.tess-inc.com
E-Mail: thornton at tess-inc.com

On 01/19/2021 7:55 am, Mohamed Tawfeek via TRNSYS-users wrote: 

> Hello, 
> 
> I am trying to generate a model that includes CO2 heat pump in Trnsys. I wonder if some module already exists. I also can't find CO2 refrigerant in TYPE 58 (refrigerant and system properties) Does it exist in a different module or can I purchase it extra? 
> 
> Thanks for your help 
> 
>   
> 
> Med vänlig hälsning, 
> 
> MOHAMED TAWFEEK 
> 
> Energikonsult 
> 
> +46 (0) 76-577 23 18 
> 
> www.sens.se [2] 
> 
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at lists.onebuilding.org
> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org [1]
 

Links:
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[1]
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[2] http://www.sens.se/
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