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An open feedwater heater operates steadily with 30 kg/hr of liquid water entering one inlet at 40 °C and 700 kPa. Water vapor enters a second inlet at 200 °C and 700 kPa. Saturated liquid exits with a pressure of 700 kPa. The dead state temperature and pressure is 20 °C and 100 kPa, respectively. (a) Draw and label a schematic of the system. (b) Determine the mass flow rate (kg/s) of water vapor needed and (c) the rate of exergy destruction (kW)
A turbine takes in 2 kg/s neon at 27C and 200 kPa with negligible velocity. The produced work is 75 kW and 30 kW of heat leaks into the turbine from the surroundings. The neon exits at 100 kPa and 230 K. Find the exit velocity of the neon.
The piston is now unlocked so it is free to move, and it conducts heat so the air comes to a uniform temperature . Find the mass in both A and B, and the final T and P.
(a) Draw a schematic of the system and (b) determine if the inventor's claims are true.
Determine the smallest horizontal force required to lift the 260- crate. The coefficient of static friction at all contacting surfaces is = 0.7. Neglect the mass of the wedge.
Angela needs 20 quarts of 50% antifreeze solution in her radiator. She plans to obtain this by mixing some pure antifreeze with an appropriate amount of a 40% antifreeze solution. How many quarts of each should she use?
A dump truck is shown in the figure. The loaded container has a mass of 8000 Kg and may be modelled as a solid homogeneous block. The hydraulic cylinder applies a force of 300 kN to the container in the starting position shown.
A similar measurement is made applying the force parallel to one of the cube axes. Explain why the two measurements give different values of the elastic modulus.
Steam at 1000kPa and 300deg C expands to a pressure of 150kPa in a cylinder. If PV = constant during the process, calculate W, Q and delta S for the process.
What would have been the advantages or disadvantages of Tata collaborating with another automaker on the Tata? Who might it have collaborated with?
The separator produces 43,150 scf/d of 0.724 gravity gas, and the stock tank vents 7240 scf/d of 1.333 gravity gas. What is the formation volume factor of the oil? What is the solution gas-oil ratio? Which of the previous answers applies only at t..
Calculating electrical power from a geothermal Resource, A geothermal well is producing 9000kg/second from a hot water basin at 200 ºC [enthalpy of 800 KJ/Kg].
Construct the homogeneous solution in terms of four constant that could be determined from initial conditions and show the equations of motion
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