A boiler has a mass flow rate of 3 tons/hour of feed water at a temperature of 28 C and a pressure of 1 atm. This water is pumped to a pressure of 30 atm assuming a constant temperature. Pump efficiency is 90%. The water leaving this pump is heated in an Economizer heat exchanger to its saturation point temperature in the saturated water phase? What is the rate of heat supplied by the Economizer to heat the pump exit feedwater to the above conditions
A boiler has a mass flow rate of 3 tons/hour of feed water at a temperature of 28 C and a pressure of 1 atm. This water is pumped to a pressure of 30 atm assuming a constant temperature. Pump efficiency is 90%. The water leaving this pump is heated in an Economizer heat exchanger to its saturation point temperature in the saturated water phase? What is the rate of heat supplied by the Economizer to heat the pump exit feedwater to the above conditions
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
A boiler has a mass flow rate of 3 tons/hour of feed water at a temperature of 28 C and a pressure of 1 atm. This water is pumped to a pressure of 30 atm assuming a constant temperature. Pump efficiency is 90%. The water leaving this pump is heated in an Economizer heat exchanger to its saturation point temperature in the saturated water phase? What is the rate of heat supplied by the Economizer to heat the pump exit feedwater to the above conditions
Expert Solution
Step 1
Given:
The mass flow rate of water, m = 3 tons per hour
The temperature of water, T = 28 C
The pressure of water, P = 1 atm
The pressure at pump exit, P2 = 30 atm
The efficiency of pump = 90%
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