problem 1: Derive the SFEE for the thermodynamic equipments such as:
b) Gas turbine.
problem 2: What are the different modes of work and prepare brief notes on:
a) Shaft work.
b) Flow work.
problem 3: Air expands from 3 bar to 1 bar in a nozzle. The initial velocity is 90 m/s and temperature is 150oC. Estimate the final velocity. Cp = 1.005 kJ/kg K.
problem 4: prepare brief notes on:
a) Isobaric Process.
b) Adiabatic Process.
problem 5: Steam enters a turbine at a velocity of 12 m/s and specific enthalpy is 2960 kJ/kg. At the exit of the turbine, the steam velocity is 30 m/s and the specific enthalpy is 2400 kJ/kg. The heat lost throughout the flow via the turbine 20 kJ/kg and the steam flow rate is 85 kg/s. Find out the work output from the turbine.
problem 6: The parameters at inlet and exit of a nozzle are described below. Compute:
a) Velocity of fluid at exit.
b) Rate of flow of fluid.
c) Area of the nozzle at the exit. Suppose the nozzle is horizontal and neglect the heat losses.