During the dry season cooling water is not available for the steam plant in the problem# 1. Consequently the exhaust steam is discharged directly to the atmosphere at 1 bar. Fresh feed water at 30oC is pumped to the boiler. Under these conditions determine the following: a. Dryness fraction of exhaust steam. b. Turbine work output. c. Work input to the feed pump. d. Heat supplied to the boiler. e. Heat rejected to the atmosphere. f. Efficiency of the plant. g. Net power output.
During the dry season cooling water is not available for the steam plant in the problem# 1. Consequently the exhaust steam is discharged directly to the atmosphere at 1 bar. Fresh feed water at 30oC is pumped to the boiler. Under these conditions determine the following: a. Dryness fraction of exhaust steam. b. Turbine work output. c. Work input to the feed pump. d. Heat supplied to the boiler. e. Heat rejected to the atmosphere. f. Efficiency of the plant. g. Net power output.
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
During the dry season cooling water is not available for the steam plant in the problem# 1. Consequently the exhaust steam is discharged directly to the atmosphere at 1 bar. Fresh feed water at 30oC is pumped to the boiler. Under these conditions determine the following:
a. Dryness fraction of exhaust steam.
b. Turbine work output.
c. Work input to the feed pump.
d. Heat supplied to the boiler.
e. Heat rejected to the atmosphere.
f. Efficiency of the plant.
g. Net power output.
Transcribed Image Text:1. In a steam plant 100 kg/min of dry-saturated steam at 30 bar enters the turbine. After expanding isentropic
ally the exhaust steam enters the condenser. The condenser pressure is maintained at 0.1 bar by the
cooling water taken from a nearby river. Calculate the following:
a. Dryness fraction of exhaust steam.
b. Turbine work output.
Work input to the feed pump.
d. Heat supplied to the boiler.
Heat rejected to the cooling water.
f. Efficiency of the plant.
g. Net power output.
С.
е.
2. During the dry season cooling water is not available for the steam plant in the problem# 1.
Consequently the exhaust steam is discharged directly to the atmosphere at 1 bar. Fresh feed
water at 30°C is pumped to the boiler. Under these conditions determine the following:
a. Dryness fraction of exhaust steam.
b. Turbine work output.
Work input to the feed pump.
d. Heat supplied to the boiler.
e. Heat rejected to the atmosphere.
f.
С.
Efficiency of the plant.
g. Net power output.
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