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Water is the working fluid in a Rankine cycle that produces 100O MW of power. Superheated vapor enters the turbine at 60 bar, 540°C and exits at 6 kPa. Saturated liquid enters the pump at 6 kPa. The isentropic turbine efficiency is 84%, and the isentropic pump efficiency is 80%. Cooling water enters the condenser at 20°C and exits at 38°C with no significant change in pressure. Determine: (a) the mass flow rate of the working fluid, in kg/s. (b) the thermal efficiency. (c) the mass flow rate of cooling water, in kg/s. (d) the back work ratio.

Water is the working fluid in a Rankine cycle that produces 100O MW of power. Superheated vapor enters the turbine at 60 bar, 540°C and exits at 6 kPa. Saturated liquid enters the pump at 6 kPa. The isentropic turbine efficiency is 84%, and the isentropic pump efficiency is 80%. Cooling water enters the condenser at 20°C and exits at 38°C with no significant change in pressure. Determine: (a) the mass flow rate of the working fluid, in kg/s. (b) the thermal efficiency. (c) the mass flow rate of cooling water, in kg/s. (d) the back work ratio.

Elements Of Electromagnetics
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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Current Attempt in Progress Water is the working fluid in a Rankine cycle that produces 100 MW of power. Superheated vapor enters the turbine at 60 bar, 540°C and exits at 6 kPa. Saturated liquid enters the pump at 6 kPa. The isentropic turbine efficiency is 84%, and the isentropic pump efficiency is 80%. Cooling water enters the condenser at 20°C and exits at 38°C with no significant change in pressure. Determine: (a) the mass flow rate of the working fluid, in kg/s. (b) the thermal efficiency. (c) the mass flow rate of cooling water, in kg/s. (d) the back work ratio.
Transcribed Image Text:Current Attempt in Progress Water is the working fluid in a Rankine cycle that produces 100 MW of power. Superheated vapor enters the turbine at 60 bar, 540°C and exits at 6 kPa. Saturated liquid enters the pump at 6 kPa. The isentropic turbine efficiency is 84%, and the isentropic pump efficiency is 80%. Cooling water enters the condenser at 20°C and exits at 38°C with no significant change in pressure. Determine: (a) the mass flow rate of the working fluid, in kg/s. (b) the thermal efficiency. (c) the mass flow rate of cooling water, in kg/s. (d) the back work ratio.
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