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[TRNSYS-users] TYPE2b issue



Dear Trnsys users

 

I facing problem while using controller Type 2b between solar water heater and storage tank. i have spent several hours in understanding its behavior but still i am confused. 

Issue is i have connected the "upper Input temperature" as collector outlet and "lower Input temperature" as outlet from storage tank heat exchanger.

I have set the deltaTH=10 and delta TL= 2 as i want that controller switch keep the pump on between this two limits.

 

But when u exported the TRNSyS data to excel to check the result it is noticed that sometimes pump is off even the above mentioned limit (deltaTH=10 and delta TL= 2) is satisfied. I am attaching the excel file and issue is highlighted in this file (sheet 1). Also TRNSYS file is attached

 

I will be thanks for the help and the suggestion and to know where I am wrong.

 

Reagrds

Adeel

 

Attachment: Project 1.xlsx
Description: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Attachment: Project_Controller.tpf
Description: Binary data