For a turbine design, experiments are carried out at 1000 rpm with a 40 cm diameter model which is 13 times smaller than the prototype. The values obtained as a result of the experiments are given in the table below. The turbine to be used in the hydroelectric power plant with a net head of 60 will be designed using the values at the most efficient operating point of the model. [m³/s] 0.87 1.40 1.54 1.90 2.34 3.10 Hart [mSS] 16.1 16.0 15.9 15.8 15.7 15.5 W [kW] 58.7 117.4 176.1 234.8 293.5 355.0 a) CH, CQ and n are functions of CP. Draw the dimensionless performance curves of the turbine on a single graph by making the necessary scalings. (Fit the curve by using the excel program for drawing. Also give the values you used for plotting in the table) b) Find the efficiency of the model at the most efficient operating point and the coefficients of head (CH), flow (CQ) and power (CP). Show them on the graph you have drawn. c)Calculate the diameter, net head, number of revolutions (rpm), flow rate, power (MW) and modified efficiency of the prototype d)Determine the turbine type

For a turbine design, experiments are carried out at 1000 rpm with a 40 cm diameter model which is 13 times smaller than the prototype. The values obtained as a result of the experiments are given in the table below. The turbine to be used in the hydroelectric power plant with a net head of 60 will be designed using the values at the most efficient operating point of the model. [m³/s] 0.87 1.40 1.54 1.90 2.34 3.10 Hart [mSS] 16.1 16.0 15.9 15.8 15.7 15.5 W [kW] 58.7 117.4 176.1 234.8 293.5 355.0 a) CH, CQ and n are functions of CP. Draw the dimensionless performance curves of the turbine on a single graph by making the necessary scalings. (Fit the curve by using the excel program for drawing. Also give the values you used for plotting in the table) b) Find the efficiency of the model at the most efficient operating point and the coefficients of head (CH), flow (CQ) and power (CP). Show them on the graph you have drawn. c)Calculate the diameter, net head, number of revolutions (rpm), flow rate, power (MW) and modified efficiency of the prototype d)Determine the turbine type

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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