The figure below shows a turbine-driven pump that provides water to a mixing chamber located dz = 45 m higher than the pump where m = 80 kg/s. Steady-state operating data for the turbine and pump are labeled on the figure. Heat transfer from the water to its surroundings occurs at a rate of 2 kW. For the turbine, heat transfer with the surroundings and potential energy effects are negligible. Kinetic energy effects at all numbered states can be ignored. h2 = 417.69 kJ/kg Mixing chamber Ocy = 2 kW Steam P3 = 30 bar T3 = 400°C dz

Elements Of Electromagnetics
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The figure below shows a turbine-driven pump that provides water to a mixing chamber located dz = 45 m higher than the pump,
where n = 80 kg/s. Steady-state operating data for the turbine and pump are labeled on the figure. Heat transfer from the water
to its surroundings occurs at a rate of 2 kW. For the turbine, heat transfer with the surroundings and potential energy effects are
negligible. Kinetic energy effects at all numbered states can be ignored.
h = 417.69 kJ/kg
Mixing chamber
Ocy = 2 kW
Steam
P3 = 30 bar
T; = 400°C
dz
Turt
Pump
P4 =5 bar
-4
T = 180°C
Saturated liquid water
m, Pj = 1 bar
Determine:
(a) the magnitude of the pump power, in kW.
(b) the mass flow rate of steam, in kg/s, that flows through the turbine.
Transcribed Image Text:The figure below shows a turbine-driven pump that provides water to a mixing chamber located dz = 45 m higher than the pump, where n = 80 kg/s. Steady-state operating data for the turbine and pump are labeled on the figure. Heat transfer from the water to its surroundings occurs at a rate of 2 kW. For the turbine, heat transfer with the surroundings and potential energy effects are negligible. Kinetic energy effects at all numbered states can be ignored. h = 417.69 kJ/kg Mixing chamber Ocy = 2 kW Steam P3 = 30 bar T; = 400°C dz Turt Pump P4 =5 bar -4 T = 180°C Saturated liquid water m, Pj = 1 bar Determine: (a) the magnitude of the pump power, in kW. (b) the mass flow rate of steam, in kg/s, that flows through the turbine.
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