Q1- Consider a small hydro scheme with a head of 60 m and a flow rate of 5 m³/s. If the efficiencies of the main components at rated output are penstock efficiency: 0.88 turbine efficiency: 0.78 generator efficiency: 0.95. The generator to be used is a 24 pole synchronous generator operating at 60Hz, and the reservoir supplying the scheme has a useable storage capacity of 800,000 m³. a) Calculate the normal speed and the electrical output. b) How much electrical energy can be generated without the reservoir being replenished? Ignore the effect of changes in the depth of the reservoir c) Calculate the specific speed d) which type of turbine is suitable for this hydro power scheme

Q1- Consider a small hydro scheme with a head of 60 m and a flow rate of 5 m³/s. If the efficiencies of the main components at rated output are penstock efficiency: 0.88 turbine efficiency: 0.78 generator efficiency: 0.95. The generator to be used is a 24 pole synchronous generator operating at 60Hz, and the reservoir supplying the scheme has a useable storage capacity of 800,000 m³. a) Calculate the normal speed and the electrical output. b) How much electrical energy can be generated without the reservoir being replenished? Ignore the effect of changes in the depth of the reservoir c) Calculate the specific speed d) which type of turbine is suitable for this hydro power scheme

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.19P

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