The figure below shows a turbine-driven pump that provides water to a mixing chamber located 25m higher than the pump. Steady-state operating data for the turbine and pump are labeled on the figure. Heat transfer from the water to the 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 states can be ignored. Determine:
a) The power required by the pump, in kW, to supply the water to the inlet of the mixing chamber
b) The mass flow rate of steam, in kg/s, that flows throught the
turbine
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The figure below shows a turbine-driven pump that provides water
to a mixing chamber located 25m...
Problem 4.070 SI The figure below shows a turbine-driven pump that provides water to a mixing...
Problem 4.070 SI The figure below shows a turbine-driven pump that provides water to a mixing chamber located dz 5 m higher than the pump, where -20 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....
A steam turbine, as shown in Figure Q3, operates at steady state with inlet conditions of Pi= 2 M...
A steam turbine, as shown in Figure Q3, operates at steady state with inlet conditions of Pi= 2 MPa, T1 = 480°C and producing 4000 kW. Saturated steam leaves the turbine at a pressure of 0.1 bar where it is condensed at 45.81 °C in the condenser. There is no significant heat transfer between the turbine and the condenser and their surroundings, and kinetic and potential energy changes between inlet and exit are negligible.
A steam turbine, as shown in...
Steam enters a turbine operating at steady state at 30 bar, 400 °C with a mass flow rate of 126 kg/min and exits as saturated vapor at 0.2 bar, producing power at a rate of 1.5 MW. Kinetic and po...
Steam enters a turbine operating at steady state at 30 bar, 400 °C with a mass flow rate of 126 kg/min and exits as saturated vapor at 0.2 bar, producing power at a rate of 1.5 MW. Kinetic and potential energy effects can be ignored. Determine the followings. (a) (5 points) The rate of heat transfer, in kW. (b) (15 points) The rate of entropy production, in kW/K, for an enlarged control volume that includes the turbine and enough of...
6.133 Figure P6.133 shows a simple vapor power cycle operating at steady state with water as...
6.133 Figure P6.133 shows a simple vapor power cycle operating at steady state with water as the working fluid Data at key locations are given on the figure. Flow through the turbine and pump occurs isentropically. Flow through the steam generator and condenser occurs at constant pressure. Stray heat transfer and kinetic and potential energy effects are negligible. Sketch the four processes of this cycle in series on a T-s diagram. Determine the thermal efficiency P 20 MPa T 700°C...
3. 50 points) Steam enters a turbine operating at a steady state at 12 MPa and...
3. 50 points) Steam enters a turbine operating at a steady state at 12 MPa and 700 C. The mass flow rate of the steam is 200 kg'min. The steam exits the turbine as a saturated vapor at 3 bar. The turbine produces 3.0 MW of power. Ignore potential and kinetic energy effects. Assuming heat transfer from the turbine to the surroundings occurs at 20 C, determine: (a) (20 pts) The rate of heat transfer, in kW (b) (20 pts)...
Steam enters a turbine operating at steady state at 700oF and 450 lbf/in2 and leaves as...
Steam enters a turbine operating at steady state at 700oF and 450 lbf/in2 and leaves as a saturated vapor at 0.8 lbf/in2. The turbine develops 12,000 hp, and heat transfer from the turbine to the surroundings occurs at a rate of 2 x 106 Btu/h. Neglect kinetic and potential energy changes from inlet to exit. Determine the exit temperature, in oF, and the volumetric flow rate of the steam at the inlet, in ft3/s.
5. Steam at 140 bar and 600 °C enters a turbine at a mass flow rate...
5. Steam at 140 bar and 600 °C enters a turbine at a mass flow rate of 0.5 kg/s. This steam exits the turbine as a saturated vapor at 300 °C. During operation, the turbine loses 200 kW of heat to the surroundings. Assume that the turbine operates at steady state and that the change of kinetic energy and gravitational energy can be ignored. (a) Sketch the system and boundary (4 points); (b) Label all mass flows and energy transfer...
Water vapor at 5 MPa, 320 C enters a turbine operating at steady state and expands...
Water vapor at 5 MPa, 320 C enters a turbine operating at steady
state and expands to 0.1 bar. The mass flow rate is 6.52 kg/s, and
the isentropic turbine efficiency is 92%. Stray heat and kinetic
and potential energy effects are negligible. Determine the power
developed by the turbine in kW.
ht 6/3 of En Help I S Water vapor at 5 MPa, 320°C enters a turbine operating at steady state and expands to 0.1 bar. The mass flow...
Problem 4. Water vapor at 6 MPa, 600 °C enters a turbine operating at steady state...
Problem 4. Water vapor at 6 MPa, 600 °C enters a turbine operating at steady state and expands to 10 kPa. The mass flow rate is 2 kg/s, and the power developed is 2626 kW. Stray heat transfer and kinetic and potential energy effects are negligible. Determine (a) the isentropic turbine efficiency and (b) the rate of entropy production within the turbine in kw/K.
Separate streams of steam and air flow through the turbine and heat exchanger arrangement shown in...
Separate streams of steam and air flow through the turbine and heat exchanger arrangement shown in Fig. P4.108. Steady-state operating data are provided on the figure. Heat transfer with the surroundings can be neglected, as can all kinetic and potential energy effects. Determine (a) T3, in K, and (b) the power output of the second turbine, in kW. Figure P4.108 (page 227) Fundamentals of Engineering Thermodynamics 7th edition: Moran Shapiro
Problem 4.070 SI The figure below shows a turbine-driven pump that provides water to a mixing chamber located dz 5 m higher than the pump, where -20 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....
A steam turbine, as shown in Figure Q3, operates at steady state with inlet conditions of Pi= 2 MPa, T1 = 480°C and producing 4000 kW. Saturated steam leaves the turbine at a pressure of 0.1 bar where it is condensed at 45.81 °C in the condenser. There is no significant heat transfer between the turbine and the condenser and their surroundings, and kinetic and potential energy changes between inlet and exit are negligible.
A steam turbine, as shown in...
Steam enters a turbine operating at steady state at 30 bar, 400 °C with a mass flow rate of 126 kg/min and exits as saturated vapor at 0.2 bar, producing power at a rate of 1.5 MW. Kinetic and potential energy effects can be ignored. Determine the followings. (a) (5 points) The rate of heat transfer, in kW. (b) (15 points) The rate of entropy production, in kW/K, for an enlarged control volume that includes the turbine and enough of...
6.133 Figure P6.133 shows a simple vapor power cycle operating at steady state with water as the working fluid Data at key locations are given on the figure. Flow through the turbine and pump occurs isentropically. Flow through the steam generator and condenser occurs at constant pressure. Stray heat transfer and kinetic and potential energy effects are negligible. Sketch the four processes of this cycle in series on a T-s diagram. Determine the thermal efficiency P 20 MPa T 700°C...
3. 50 points) Steam enters a turbine operating at a steady state at 12 MPa and 700 C. The mass flow rate of the steam is 200 kg'min. The steam exits the turbine as a saturated vapor at 3 bar. The turbine produces 3.0 MW of power. Ignore potential and kinetic energy effects. Assuming heat transfer from the turbine to the surroundings occurs at 20 C, determine: (a) (20 pts) The rate of heat transfer, in kW (b) (20 pts)...
5. Steam at 140 bar and 600 °C enters a turbine at a mass flow rate of 0.5 kg/s. This steam exits the turbine as a saturated vapor at 300 °C. During operation, the turbine loses 200 kW of heat to the surroundings. Assume that the turbine operates at steady state and that the change of kinetic energy and gravitational energy can be ignored. (a) Sketch the system and boundary (4 points); (b) Label all mass flows and energy transfer...
Water vapor at 5 MPa, 320 C enters a turbine operating at steady
state and expands to 0.1 bar. The mass flow rate is 6.52 kg/s, and
the isentropic turbine efficiency is 92%. Stray heat and kinetic
and potential energy effects are negligible. Determine the power
developed by the turbine in kW.
ht 6/3 of En Help I S Water vapor at 5 MPa, 320°C enters a turbine operating at steady state and expands to 0.1 bar. The mass flow...
Problem 4. Water vapor at 6 MPa, 600 °C enters a turbine operating at steady state and expands to 10 kPa. The mass flow rate is 2 kg/s, and the power developed is 2626 kW. Stray heat transfer and kinetic and potential energy effects are negligible. Determine (a) the isentropic turbine efficiency and (b) the rate of entropy production within the turbine in kw/K.
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