Question

For a hydropower plant having 150 m head of stored water behind the dam. The water in the reservoir is clear and load on the powerhouse is not likely to fluctuate much. Which type of turbine will be suitable for the same?

(a) Pelton turbine

(b) Francis turbine

(c) Kaplan turbine

(d) Propeller turbine

The question was asked during an online exam.

Asked question is from Hydro Electric Power in division Hydro Electric Power of Irrigation Engineering

Answer 1

Right answer is (b) Francis turbine

To explain I would say: Francis turbines are cheaper than Pelton’s turbine and there is no special need for Pelton’s turbine because variable loads are not likely to come and water is not sandy which may certainly need Pelton’s turbines. Hence, Francis turbine will suffice to our needs.