Thermodynamics HW Solutions 22

Thermodynamics HW Solutions 22 - Chapter 1 Basics of Heat...

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Chapter 1 Basics of Heat Transfer 1-43 Water is heated in an insulated tube by an electric resistance heater. The mass flow rate of water through the heater is to be determined. Assumptions 1 Water is an incompressible substance with a constant specific heat. 2 The kinetic and potential energy changes are negligible, Δ Δ ke pe 0 . 3 Heat loss from the insulated tube is negligible. Properties The specific heat of water at room temperature is C p = 4.18 kJ/kg· ° C (Table A-9). Analysis We take the tube as the system. This is a control volume since mass crosses the system boundary during the process. We observe that this is a steady-flow process since there is no change with time at any
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This note was uploaded on 01/14/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.

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