Hello everyone,
I was working on type 74 CPC. I tried checking the collector outlet temp. for a location and I got temperature up to 600 degree C which doesn`t seem so realistic. In parameters of TYPE 74, the overall loss coefficient UL is fixed as 3kJ/hr.m2.K.
Now, UL depends on ambient temperature, average collector fluid temperature and some other parameters as well.
So if these temperature are varying with time then the loss coefficient should also vary, which is not happening as I think. So is there any option through which we can modify the loss coefficient ( as a function of temperatures and other parameters) and get some realistic collector outlet temperatures.
Regards
Aditi Garg