It is proposed to have a water heater that consists of an insulated pipe of 7.5-cm diameter

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It is proposed to have a water heater that consists of an insulated pipe of 7.5-cm diameter and an electric resistor inside. Cold water at 20°C enters the heating section steadily at a rate of 24 L/min. If water is to be heated to 48°C, determine
(a) The power rating of the resistance heater and
(b) The average velocity of the water in the pipe.
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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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