[TRNSYS-users] about the type 50

[em04143 at fe.up.pt]

Hi,

I'm developing a study with a PV-T flate plate collector. I'm using  
the type 50 c, a collector with angular dependance of the  
transmitance. However, the Tout of the collector is very high (about  
380 ºC!!!). Does anyone now if there is any problem with this type?  
I've confirmed my parameters many times, and the input data as well.  
The fluid is water, with a rate of 0.0768 Kg/s, and with 20ºC of  
temperature at the entrance of the collector.

Thanks, Tiago Teixeira

Collector parameters

Mode                                                        3        -
Collector Area                                                3.84        m^2
Collector Efficiency Factor                                0.664        -
Fluid Thermal Capacitance                                4.190        kJ/kg.K
Collector plate absorptance                                0.9        -
Number of glass covers                                        1        -
Collector loss coefficient                                        2.78  
        W/m^2.K
Extinction coefficient thickness product                        0.012        -
Temperature coeficient of PV cell efficiency                -0.0045     
             any
Temperature for cell reference efficiency                        25     
             deltaC
Packing factor                                                0.69        -


Tiago Teixeira
Engineer/Student At FEUP, Oporto, Portugal
em04143 at fe.up.pt
www.fe.up.pt