Energy Transfer
Energy Transfer
Energy Transfer
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Total <strong>Energy</strong> of a Flowing Fluid• It is sum of internal, kinetic, and potential energy of acompressible system, i.e.eukepeugz(kJ / kg)• For a flowing system on a per unit mass basis we mustadd flow energy to obtain the total energy of a flowingfluid, viz. = Pv + e = Pv + (u + ke + pe) or = h + ke + pe where h = Pv + uVh is called specific enthalpy of the fluid. Using h instead ofu allows us to account for flow work in control volumeproblems.2/2<strong>Energy</strong> <strong>Transfer</strong> 47© Copyright 2005 Prof. Arun S. Mujumdar.
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