Muhammad,
Please refer to the Type941 documentation. It explains how the external files and the parameters relate to each other to compute the overall capacity and power consumption of the heat pump.
The evaporator does not really need to be designed more than to choose a machine with an appropriate rated capacity. Traditionally that might mean adding a safety factor to the peak cooling load (10% is often used) and then selecting a machine that will meet that capacity. Also bear in mind that Type941 models a single speed (ie single capacity) heat pump that is either on or off. Depending on how variable the load in your building it, you might want to meet that load with multiple smaller heat pumps rather than one big one.
kind regards,
David
On 03/27/2020 08:02, Muhammad Zeeshan via TRNSYS-users wrote:
Hello Everyone,I am working on cooling a building with type 41(air to water source heat pump). The cooling load of the building is 25 tons. I want to know
1)- how the compressor power will be calculated? as the external files of type 941 contains fractions of compressor power which shows no link to the equations provided in manual. How to link the external file with the provided equations?
2)-As the cooling load of the building is 25 tons, how to design the evaporator for this building load?
Your help in this regard will be highly appreciated.
Regards,Muhammad Zeeshan
_______________________________________________ TRNSYS-users mailing list TRNSYS-users@lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 3 North Pinckney Street - suite 202 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com