[TRNSYS-users] Help : Type 71 problem

[zouhour sayadi <rouhouzs@yahoo.fr>]

hi trnsys users ,

 

I have a problem in fixing the parameter 8 in type 71 'the negative of second order efficiency coefficient ' .I tried to modify this parameter by changing the default value but it returns again in the initial value made by trnsys ' 0.00833 w/m^2.K^2' .I must change this value because I want to create another industrial type . 

 

What efficiency mode do I take ?

 

 In type 71 : Is the flow rate at test conditions per m^2 of the collector area or of another surface ? I mean if I change the value of the collector area , automatically I must change the flow rate at test conditions ?

 

Please help me

 

thanks ; best reagrds

 

zouhour  

 

 

 

 

 

 

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