Unformatted text preview: The following heat capacities for air may be assumed independent of temperature: C v = 20.78 and Cp = 29.10 J mol-1 K-1 Assume also for air that P V/ T is a constant, regardless of the changes it undergoes. 3. (35) An adiabatic steady-state turbine is shown as below. The inlet to the turbine is steam at 600°C and 10 bar, with a mass flow rate of 2.5 kg/s. The outlet stream is 400 o C, and the rate of work obtained from the turbine is 1000kJ/second. Assuming the kinetic energy change of the stream is negligible: 1. Is the outlet fluid a single phase of superheated vapor or a mixture of vapor and liquid? 2. What is the pressure of the outlet stream? T 1 =600 o C P 1 =10bar T 2 =400 o C P 2 =?? s kJ W s / 1000-= • High pressure line Valve P=1 bar, T=400 o C thermocouple...
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- Spring '08