209s10a8

209s10a8 - DCGN209-Spring10: Homework#8 p. 1 of 3 I. Study...

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DCGN209-Spring’10: Homework#8 p. 1 of 3 I. to hand in) . A. The following derivations refer to “control volume” devices. The starting point for the energy balance for such a device is the equation below; use this equation as a starting point for the first derivation. 1. For a steady-flow device the mass flow rate at the inlet is equal to the mass flow rate at the outlet. Start with the equation above and show that the energy balance for such a device is: 2. Use the result of derivation #1 to show, for a device in which no work is done (such as a nozzle, diffuser or throttling valve) that the following relationship holds when the device is adiabatic : 3. Use the result of derivation #1 to show, for a device in which no work is done (such as a nozzle, diffuser or throttling valve) that the following relationship holds when the device is non-adiabatic : 4. Use the result of derivation #1 to show, for a device in which non-boundary work is done by the fluid as it passes through the device (such as a turbine or
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209s10a8 - DCGN209-Spring10: Homework#8 p. 1 of 3 I. Study...

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