lesson 3

Question 1

advantage of concentrating collector over the flat collector

Answer 1

1. the size of the absorber can be reduced that gives high concentrating ratio
2. thermal losses are less than FPC, However small losses occur in the concentrating collector because of it’s optical system as well as by reflection absorption by mirrors and lenses.
3. the efficiency increase at high temperature.
4. in these collectors the area intercepting the solar radiation is greater than the absorber area