An insulated electrically heated tank for hot water contains 200 Kg of liquid water at 60ᴼC. Imagine you are taking a shower using water from this tank when power outage occurs. If water is withdrawn from the tank at steady rate of m=0.2 kg/s. How many minutes will it take for the temperature of the water in the tank to drop from 60 to 30ᴼC. Assume that cold water enters the tank at 10ᴼC and that heat losses from the tank are negligible. Here assume that the liquid water Cv = Cp=C, is independent of Temperature and Pressure.
An insulated electrically heated tank for hot water contains 200 Kg of liquid water at 60ᴼC. Imagine you are taking a shower using water from this tank when power outage occurs. If water is withdrawn from the tank at steady rate of m=0.2 kg/s. How many minutes will it take for the temperature of the water in the tank to drop from 60 to 30ᴼC. Assume that cold water enters the tank at 10ᴼC and that heat losses from the tank are negligible. Here assume that the liquid water Cv = Cp=C, is independent of Temperature and Pressure.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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An insulated electrically heated tank for hot water contains 200 Kg of liquid water at 60ᴼC. Imagine you are taking a shower using water from this tank when power outage occurs. If water is withdrawn from the tank at steady rate of m=0.2 kg/s. How many minutes will it take for the temperature of the water in the tank to drop from 60 to 30ᴼC. Assume that cold water enters the tank at 10ᴼC and that heat losses from the tank are negligible. Here assume that the liquid water Cv = Cp=C, is independent of Temperature and Pressure.
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