Question

Steady state water enters y 220ºF into a heat exchanger, leaves it at y 320ºF. The...

Steady state water enters y 220ºF into a heat exchanger, leaves it at y 320ºF. The steam that leaves the exchanger is fed to a turbine from which it comes out with a quality of 90% and 1 psia. The exchanger uses air that enters 360ºF and 1 atm with a volumetric flow of 3000 ft3 / min, and exits at 280ºF at the same pressure. Determine the power in the turbine (Btu / min).

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
4.58 Air enters a compressor operating at steady state with a pressure of 14.7 lbf/in^2, a...
4.58 Air enters a compressor operating at steady state with a pressure of 14.7 lbf/in^2, a temperature of 808 F, and a volumetric flow rate of 18 ft /s. The air exits the compressor at a pressure of 90 lbf/in^2 Heat transfer from the compressor to its surroundings occurs at a rate of 9.7 Btu per lb of air flowing. The compressor power input is 90 hp. Neglecting kinetic and potential energy effects and modeling air as an ideal gas,...
Steam at 400 psia and 50 percent quality is heated in a steady-flow heat exchanger until...
Steam at 400 psia and 50 percent quality is heated in a steady-flow heat exchanger until it becomes saturated vapor. It is then expanded isentropically through a turbine to 1 psia. This is followed by cooling in a second heat exchanger and then isentropic compression to the initial condition. Determine the Carnot efficiency for the cycle and the net work output.
Air enters a counterflow heat exchanger operating at steady state at 22°C, 0.1 MPa and exits...
Air enters a counterflow heat exchanger operating at steady state at 22°C, 0.1 MPa and exits at 7°C. Refrigerant 134a enters at 0.2 MPa, a quality of 0.21, and a mass flow rate of 30 kg/h. Refrigerant exits at 0°C. There is no significant change in pressure for either stream. (a) For the Refrigerant 134a stream, determine the rate of heat transfer, in kJ/h (b) For the refrigerant stream evaluate the change in flow exergy rate, in kJ/h. (c) For...
Air enters the evaporator section of a window air conditioner at 14.7 psia and 90°F with...
Air enters the evaporator section of a window air conditioner at 14.7 psia and 90°F with a volume flow rate of 200 ft3 /min. Refrigerant-134a at 20 psia with a quality of 30 percent enters the evaporator at a rate of 4 lbm/min and leaves as saturated vapor at the same pressure. Determine (a) the exit temperature of the air and (b) the rate of heat transfer from the air.
Air enters a compressor operating at steady state at 15.4 lbf/in^2, 80°F with a volumetric flow...
Air enters a compressor operating at steady state at 15.4 lbf/in^2, 80°F with a volumetric flow rate of 424 ft^3/min and exits at 176.4 lbf/in^2, 260°F. Heat transfer occurs at a rate of 6800 Btu/h from the compressor to its surroundings. Assuming the ideal gas model for air and neglecting kinetic and potential energy effects, determine the power input, in hp.
Air at 95°F, 1 atm, and 10% relative humidity enters an evaporative cooler operating at steady...
Air at 95°F, 1 atm, and 10% relative humidity enters an evaporative cooler operating at steady state. The volumetric flow rate of the incoming air is 1765 ft3/min. Liquid water at 68°F enters the cooler and fully evaporates. Moist air exits the cooler at 70°F, 1 atm. There is no significant heat transfer between the device and its surroundings and kinetic and potential energy effects can be neglected. a)Determine the mass flow rate of the dry air in lb(dry air)/min....
Water is used to cool R-134a in the condenser of a heat exchanger. The refrigerant enters...
Water is used to cool R-134a in the condenser of a heat exchanger. The refrigerant enters the counter-flow heat exchanger at 800 kPa, 80 0C and a mass flow rate of 2 kg/s. The refrigerant exits as a saturated liquid. Cooling water enters the condenser at 500 kPa and 18 0C and leaves the condenser at 30 0C. Determine the necessary mass flow rate of water. Each fluid is assumed to flow at constant pressure.
Steam enters an adiabatic turbine at 140 bar and 560 C and leaves at 10 kPa....
Steam enters an adiabatic turbine at 140 bar and 560 C and leaves at 10 kPa. At the exit, the pressure and quality are 50 KPa and .90, respectively. Determine the power produced (kW) by the turbine if the mass flow rate is 1.63 kg/s.
Methane enters a heat e xchanger at a volumetric flow rate of 145.0 m 3 /min,...
Methane enters a heat e xchanger at a volumetric flow rate of 145.0 m 3 /min, at an absolute pressure of 1.013 bar and temperature of 15.0°C. At these conditions, the specific enthalpy of methane is - 23.181 kJ/kg. The methane leaves the heat exchanger at an absolute pressure of 1.0 13 bar and temperature of 60.0°C. The corresponding specific enthalpy at these conditions is 78.656 kJ/kg. The methane is heated by a stream of saturated steam entering the heat...
a tube-within-a-tube heat exchanger operating at steady state is composed of one pipe containing Refrigerant 134a...
a tube-within-a-tube heat exchanger operating at steady state is composed of one pipe containing Refrigerant 134a and another pipe containing an ideal gas with constant specific heat at constant pressure of 1.2 kJ/(kg∙K). The refrigerant 134a enters the heat exchanger in a saturated liquid state and exits the heat exchanger in a saturated vapor state. The temperature and mass flow rate of the refrigerant 134a are -20° C and 3 kgs/s, respectively, at both its inlet and outlet. The ideal...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT