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1. A steam turbine receives steam at 250. psia and 900.°F and exhausts it at 20.0 psia. The turbine is adiabatic and does the work of 190.4 Btu/lbm of steam flowing. Find the entropy production per lbm of steam flowing.
2. What mass flow rate is required to produce 75.0 kW from a steam turbine with inlet conditions of 2.00 MPa, 900.°C and exit conditions of 0.100 MPa, 200.°C if the turbine is reversible but not adiabatic? The heat transfer from the turbine occurs at a surface temperature of 50.0°C. Neglect any changes in kinetic and potential energy.
Determine the power of the pump. The efficiency of the pump is 65%.
If the annual equivalent cost of the levee is less than the annual expectation of flood damage, the levee should be built. The annual expectation of flood damage is (1/8)x 20,000 = $2,500. Compute the annual equivalent cost of the levee.
a typical car driving along a level highway at constant speed of 60 miles per hour must expend approximately 10
If there is a total of 250 kJ of thermal energy available at a temperature of 500K, how much can be converted to useful work if the environment is at a temperature of 300K?
The drinking water needs of an office are met by large water bottles. One end of a 0.6 cm diameter plastic hose is inserted into the bottle placed on a high stand, while the other end with on/off valve is maintained 0.6 m below the bottom of the bott..
saturated liquid water is compressed from 100 kpa state 1 to 2.5 mpa state 2 in an adiabatic pump having 85 isentropic
You are required to design a device for crushing aluminium cans. An example of a design is shown in Figure. Firstly, you are required to produce a product design specification. You then need to produce three possible concept design solutions to th..
A single-stage ideal regenerative steam cycle has a boiler pressure and temperature of 5000 kPa and 500 C, and a condensing pressure of 10 kPa. The extraction pressure is 500 kPa.
in a hydroelectric power plant water enters the turbine nozzles at 880 kpa absolute with a negligible velocity. if the
an airplane wing with chord length of 5ft and span of 30ftis designed to move through standard air at a speed of
A 3in diameter can which is 6in tall contains R134a at 70oF. Initially the can is half full, by volume, of liquid R134a. The can is connected to and air conditioning system and is used to fill up that system. Knowing only vapor R134a leaves the conta..
Saturated liquid-vapor mixture of water, called wet steam, in a steam line at 2000 kPa is throttled to 100 kPa and 120?C. What is the quality in the steam .
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