In a Rankine cycle power plant superheated steam enters the turbine at 18 MPa and 580 C. Steam expands through a single stage turbine and discharges at 6 kPa with stage efficiency of 82 %. The condensate leaves the condenser at 25 C and pumped to 18.5 MPa going to the steam generator. The pump efficiency is 77 %. For steam flow of 9,000 kg/hr, determine: a) Electrical power output of the plant if mechanical efficiency & generator efficiency are 88 % & 92 %, respectively. b) Heat added in the steam generator if boiler efficiency is 85 % c) Plant thermal efficiency (ans: 35.7%)

In a Rankine cycle power plant superheated steam enters the turbine at 18 MPa and 580 C. Steam expands through a single stage turbine and discharges at 6 kPa with stage efficiency of 82 %. The condensate leaves the condenser at 25 C and pumped to 18.5 MPa going to the steam generator. The pump efficiency is 77 %. For steam flow of 9,000 kg/hr, determine: a) Electrical power output of the plant if mechanical efficiency & generator efficiency are 88 % & 92 %, respectively. b) Heat added in the steam generator if boiler efficiency is 85 % c) Plant thermal efficiency (ans: 35.7%)

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

In a Rankine cycle power plant superheated steam enters the turbine at 18 MPa and 580 c.
Steam expands through a single stage turbine and discharges at 6 kPa with stage efficiency
of 82 %. The condensate leaves the condenser at 25 C and pumped to 18.5 MPa going to the
steam generator. The pump efficiency is 77 %. For steam flow of 9,000 kg/hr, determine:
a) Electrical power output of the plant if mechanical efficiency & generator efficiency
are 88 % & 92 %, respectively.
b) Heat added in the steam generator if boiler efficiency is 85 %
c) Plant thermal efficiency (ans: 35.7%)

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