Answered: Unit mass of a fluid at pressure of 3…

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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A. Unit mass of a fluid at pressure of 3 bar, and specific volume of 0.19 m3/kg, contained in a cylinder behind a piston expands reversibly to a pressure of 0.8 bar according to law p = c/v2, where c is a constant. Calculate the work done during the process. B. In the turbine of a gas turbine unit the gases flow through the turbine at 14+04 kg/s and the power develop by the turbine is 16000 kW. The specific enthalpies of the gases at inlet and outlet are 1200 kJ/kg and 180 kJ/kg respectively, and the velocities of the gases at inlet and outlet are 65 +04 m/s and 140 m/s respectively. Calculate the rate at which heat is rejected from the turbine. C. In the turbine of a gas turbine unit the gases flow through the turbine at 14+16 kg/s and the power develop by the turbine is 16000 kW. The specific enthalpies of the gases at inlet and outlet are 1200 kJ/kg and 180 kJ/kg respectively, and the velocities of the gases at inlet and outlet are 65 +16 m/s and 140 m/s respectively. Calculate the rate at which heat is rejected from the turbine.

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