<I am using type 927 to model a water-to-water heat pump but I don't have data about the normalized capacity and power draw based on the entering load and source temperatures and the normalized source and load flow rates (as mentioned in the description of type 927). Knowing that in the old version of this type "668", we didn't need values of normalized source and load flow rates.>
If your catalog data doesn't show the impact of the flow rates on performance, or if you'll be using the device at the flow rates that are provided in the data, then simply provide only one data point for the flow rates in the data file. Or copy the performance and repeat it for the other flow rate points. 927 was written to be more accommodating for heat pumps that have performance that varies with flow rate but can still model everything that 668 could model before.
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@tess-inc.com
On 05/02/2019 8:29 am, Sekaina EL KHATTABI via TRNSYS-users wrote:
Hi everyone,
I am using type 927 to model a water-to-water heat pump but I don't have data about the normalized capacity and power draw based on the entering load and source temperatures and the normalized source and load flow rates (as mentioned in the description of type 927). Knowing that in the old version of this type "668", we didn't need values of normalized source and load flow rates.PS: see data about the heat pump which I want to model at page 24 in the attached documentDo you have any idea to solve this issue based on the data I have?Thanks
--
Sekaina EL KHATTABIÉlève Ingénieur à l'Ecole Centrale de Nantes+212 6 02 24 71 01+33 6 60 18 15 70
_______________________________________________ TRNSYS-users mailing list TRNSYS-users@lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
Attachment:
16121_psd_02_2012_61wg_30wg_lr.pdf
Description: Adobe PDF document