Water is the working fluid in an ideal Rankine cycle. Superheated vapor enters the turbine at 8 MPa, 480C. The condenser pressure is 8 kPa. The net power output of the cycle is 100 MW. Determine for the cycle (a) the rate of heat transfer to the working fluid passing through the steam generator, in kW. (b) the thermal efficiency. (c) the mass flow rate of condenser cooling water, in kg/h, if the cooling water enters the condenser at 15C and exits at 35C with negligible pressure change.
Water is the working fluid in an ideal Rankine cycle. Superheated vapor enters the turbine at 8 MPa, 480C. The condenser pressure is 8 kPa. The net power output of the cycle is 100 MW. Determine for the cycle (a) the rate of heat transfer to the working fluid passing through the steam generator, in kW. (b) the thermal efficiency. (c) the mass flow rate of condenser cooling water, in kg/h, if the cooling water enters the condenser at 15C and exits at 35C with negligible pressure change.
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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Transcribed Image Text:Water is the working fluid in an ideal Rankine cycle. Superheated vapor enters the turbine
at 8 MPa, 480C. The condenser pressure is 8 kPa. The net power output of the cycle is 100
MW.
Determine for the cycle
(a) the rate of heat transfer to the working fluid passing through the steam generator, in kW.
(b) the thermal efficiency.
(c) the mass flow rate of condenser cooling water, in kg/h, if the cooling water enters the
condenser at 15C and exits at 35C with negligible pressure change.
(d)Plot each of the quantities calculated in Problem 8.2 versus steam generator pressure
ranging from 4 MPa to 24 MPa. Maintain the turbine inlet temperature at 480C. Discuss.
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