Hi

you can depend on the following reference

Duffie, John A., and William A. Beckman. Solar engineering of thermal processes. John Wiley & Sons, 2013.

Outlet temperature is taking fixe at 60 C?

Yes +/- 2C

Why outlet temperature dont change with solar radiation?

Dear Ali, Thank you for you answer

YES, The temperature change with solar radiation but my question was : What are the steps to be taken for a complete study.

To be more clear : supposed this question as an exercise and I ask the steps of solutions and the methods to follow.

I think that it is easy to do. First of all you have to mention the site you intend to install this collector in ( i.e. the latitude and longitude). then you can select a methodology which you may find it Duffiee or Sotories etal. to start calculating the sun-earth angles and hence the total radiation. Further extenstion is possible to calculate the monthly average daily global radiation. The next step is to calculate absorbed solar radiation . This requires calculating the fraction indeses and the effective transmitivity/absorbtivitym. Futhermore; ea loss estimastion is neccessary to conduct including the top loss; bottom loss; edge loss and the side loss. A comprehansive mathematical model may found in Soteries. An interative approach is needed to estimate the glass temperature. Now; the useful heat gain and the effeciency of the collector can be calculated after determining certain paramters such as ethe efficieny factor and the heat removal factheeintermediate efficiency factor and the heat removal factor.

Finally you can simulate the hourly and daily performance of your designed collector and uncertinainty calculation of your experimental and theoritical results are recommended.

Best regards.

Abdullateef

Dear Mr. Abdulrrahman;

I' ll send your request soon.

with compliments

Abdullateef

Thank you Mr. Abdulrrahman