8/11/2019 At Unit Test II2014_2

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8/11/2019 At Unit Test II2014_2

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Q.2 a. Atmospheric air at 101 KPa and 27 C is accelerated isentropically in a nozzle from 13.5 m/sto 223.8 m/s. Find the changes in (i) Temperature, (ii) Pressure, (iii) Density, (iv) Stagnationtemperature and stagnation pressure.

Assume Cp = 1005 J/kg.K and R = 287 J/ kg.K

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b. Static air at 10 bar and 8000C flows through a duct. Calculate the temperature, velocity and

Mach number at points, Where pressures are 5 bar and 1 bar, respectively.

Assume Cp = 1005 J/kg.K and R = 287 J/ kg.K

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Q.3 a. Prove that

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b. Explain the working and analysis of the regenerative Rankine cycle with one feed waterheater.

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Q.2 a. Atmospheric air at 101 KPa and 270C is accelerated isentropically in a nozzle from 13.5 m/s

to 223.8 m/s. Find the changes in (i) Temperature, (ii) Pressure, (iii) Density, (iv) Stagnationtemperature and stagnation pressure.

Assume Cp = 1005 J/kg.K and R = 287 J/ kg.K

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b. Static air at 10 bar and 8000C flows through a duct. Calculate the temperature, velocity and

Mach number at points, Where pressures are 5 bar and 1 bar, respectively.Assume Cp = 1005 J/kg.K and R = 287 J/ kg.K

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Q.3 a. Prove that

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b. Explain the working and analysis of the regenerative Rankine cycle with one feed waterheater.

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