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You are to design a rooftop solar absorber made of black chrome. The purpose is to heat up 0 . 0 1 k g s

You are to design a rooftop solar absorber made of black chrome. The purpose is to heat up 0.01kgs-1 of tank water from 300 to 360K. Every 1m2 surface of solar absorber can accommodate 1m length of thin-walled copper tube of diameter 0.02m beneath its surface.
At noon, the intensity of direct solar irradiation (normal to horizon) was measured to be 1,154Wm-2. The ambient temperature is 305K, while the sky temperature is 270K. The convective heat transfer coefficient on the surface was measured to be 5Wm-2K-1.
a) Write the steady-state energy balance equation when no water is flowing through the tube. What is the surface temperature of the solar absorber?(15 marks)
b) How much heat load is required to heat up the water? (10 marks)
c) Write the steady-state energy balance equation taking into account of the heat flux, qwater'', to be transferred to the water. (10 marks)
d) Calculate the convective heat transfer coefficient within the tube, and subsequently estimate the tube length required. (30 marks)
e) What is the total surface area of absorber,Asolar,, required? (5 marks)
f) Calculate the surface temperature of the solar absorber with water flowing through the tube. (20 marks)
g) Your Supervisor suggests to increase the tube length per surface area of absorber to increase the overall solar efficiency. What is your take on this? Briefly elaborate your reasoning. (10 marks)
Provide final answer for every question ,thank you.
Flow Rate is 0.01 kg/s .

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