1. 1.5-Steam is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 8 MPa and saturated liquid exits the condenser at a pressure of 0.008 MPa. The net power output of the cycle is 100 MW. Determine: The thermal efficiency (Ans. 37.1%) • The back work ratio (Ans. 0.84%) • The mass flow rate of the steam in kg/h (Ans. 3.77 x 105³ kg/h) •The rate of heat transfer, Qin in MW (Ans. 269.77 MW) • The mass flow rate of condenser cooling water, in kg/h, if the cooling water enters the condenser at 25°C and exits at 35°C. (Ans. 14.27x10 kg/h) .

1. 1.5-Steam is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 8 MPa and saturated liquid exits the condenser at a pressure of 0.008 MPa. The net power output of the cycle is 100 MW. Determine: The thermal efficiency (Ans. 37.1%) • The back work ratio (Ans. 0.84%) • The mass flow rate of the steam in kg/h (Ans. 3.77 x 105³ kg/h) •The rate of heat transfer, Qin in MW (Ans. 269.77 MW) • The mass flow rate of condenser cooling water, in kg/h, if the cooling water enters the condenser at 25°C and exits at 35°C. (Ans. 14.27x10 kg/h) .

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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Question

Sheet 2
1. 1.5-Steam is the working fluid in an ideal Rankine cycle. Saturated vapor enters
the turbine at 8 MPa and saturated liquid exits the condenser at a pressure of
0.008 MPa. The net power output of the cycle is 100 MW. Determine:
• The thermal efficiency (Ans. 37.1%)
• The back work ratio (Ans. 0.84%)
• The mass flow rate of the steam in kg/h (Ans. 3.77 x 105 kg/h)
• The rate of heat transfer, Qin in MW (Ans. 269.77 MW)
• The mass flow rate of condenser cooling water, in kg/h, if the cooling water
enters the condenser at 25°C and exits at 35°C. (Ans. 14.27x106 kg/h)

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