Answer:
2.9 * 10^ ⁷ Btu/h
Explanation:
The given data is:
The efficiency of solar power plant = 4%
The net power output Ẇ = 350 kW
Then,
The expression for efficiency is,
η = Ẇ/˙
Q
Q = Ẇ/η
Where Q is the rate of heat collection.
Substituting the values in above expression becomes,
Q = 350/0.04
Q= 8750 kW
By doing the unit conversion for the collection rate.
1kW =3412.14 Btu/h
Q = 8750 * 3412.14
Q = 2.9 * 10^ ⁷ Btu/h
Therefore the he average value of the required solar energy collection rate in Btu/h is 2.9 * 10^⁷ Btu/h
