In a hydroelectric project, a discharge of 400 m/s is available with net head of 32 m. Iftwo turbines of same size having specific speed Ns are required to give an efficiency of90 % then Ng (in Sl unit) of each turbine is_(Assume speed of each turbine to be 152 r.p.m.).

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Answered: In a hydroelectric project, a discharge…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Water flows through a 7.5 m diameter penstock on a dam at a flow rate of 113 m3/s. The total head available for the turbine is 18.4 m. The specifiic weight of water is 9810 N/m3. What is the power generated by the turbine?
Read the question carefully and give me right solution with clear calculations. Note: If you don't know the solution please leave it but don't give me wrong solution. At a river a suitable site for a run-of-the river installation has an available head of 13 m between the water intake and the turbine house. Environmental guidelines permit to extract water for hydropower only if it is in excess of 2.8 m3/s. Estimate the power generated in kW when the flow in the river is 10.9 m3/s for a turbine with an efficiency of 90%. Present the answer as integer in kW.
A small hydro electric power plant utilizing two (2) Pelton turbines and a single main penstock serving water to two nozzles for respective turbines. If both turbines are operated at the same time with same efficiency of 92% under the same net head of 2314 ft, same speed of 360 rpm and same flow rate. Determine the specific speed if the flow rate in the main penstock is 263 ft3 /s.
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Water must flow over a distance of 2 800 m from a large catchment dam to a turbine. The water level in the catchment dam is 1 620 m above sea level and the turbine is situated 1 275 m above sea level. The efficiency of transmission is 65% and 300 kW must be transmitted from the pipeline to the turbine. If f = 0.007, determine the number of 200 mm diameter pipelines, which must be laid in parallel, needed to transmit the required power.
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Extra examples: A turbine receives water from a large reservoir and discharges the water into the atmosphere, if pipe dia. 18 in. pipe length= 150 ft, and the velocity in the pipe 20 ft's, find the power derived to the turbine by the water, take the major losses (f = 0.03)? Watee 20 Tiabine 20
A turbine is installed with a total energy head of 14.97 m. if the rate of flow is 0.48 m3/s,determine the following:a. The input horsepower of the turbine.b. If the efficiency of the turbine is 82 %, compute its output hp.

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In a hydroelectric project, a discharge of 400 m/s is available with net head of 32 m. If two turbines of same size having specific speed Ng are required to give an efficiency of 90 % then Ng (in Sl unit) of each turbine is_ (Assume speed of each turbine to be 152 r.p.m.).