Steam enters the condenser of a steam power plant at 20 kPa and a quality of 90 percent with a mass flow rate of 20,000 kg/h. It is to be cooled by water from a nearby river by circulating the water through the tubes within the condenser. To prevent thermal pollution, the river water is not allowed to experience a temperature rise above 10°C. If the steam is to leave the condenser as saturated liquid at 20 kPa, Determine (a) the mass flow rate of the cooling water required, and (b) rate of heat loss from the steam. Please attempt (a) then (b)
Steam enters the condenser of a steam power plant at 20 kPa and a quality of 90 percent with a mass flow rate of 20,000 kg/h. It is to be cooled by water from a nearby river by circulating the water through the tubes within the condenser. To prevent thermal pollution, the river water is not allowed to experience a temperature rise above 10°C. If the steam is to leave the condenser as saturated liquid at 20 kPa, Determine (a) the mass flow rate of the cooling water required, and (b) rate of heat loss from the steam. Please attempt (a) then (b)
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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Steam enters the condenser of a steam power plant at 20 kPa and a
quality of 90 percent with a mass flow rate of 20,000 kg/h. It is to be cooled by water from a
nearby river by circulating the water through the tubes within the condenser. To prevent
thermal pollution, the river water is not allowed to experience a temperature rise above
10°C. If the steam is to leave the condenser as saturated liquid at 20 kPa,
Determine
(a) the mass flow rate of the cooling water required, and
(b) rate of heat loss from the steam.
Please attempt (a) then (b)
Transcribed Image Text:m3 = 20,000 kg/h
P3 = 20 kPa
*3 = 0.9
Steam
P₁ = 20 kPa
Sat. liquid
Water
T, +10°C
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Should the final answer for part (b) be -ve as heat is exiting?
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