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A pump is employed to deliver liquid water from a pond to a higher elevation. The pump steadily draws water from the pond at a volumetric flow rate of 192 gal/min through a pipe having a 7 in diameter inlet. The exit diameter of the pipe is 2 in. and the exit is located 42 ft above the pipe inlet. Water enters at 66oF, 14.7 lbf/in.2 and exits with no significant change in temperature or pressure. The magnitude of the rate of heat transfer from the pump to the surroundings is 9% of the power input. The acceleration of gravity is 32.2 ft/s2. Determine: (a) the velocity of the water at the inlet and exit, each in ft/s (b) the power required by the pump, in hp.
A total condenser is to be designed for condensing saturated 2-butanol vapor to form saturated 2-butanol liquid at 1 atm at the rate of 0.72 kmol/h. The saturation temperature of 2-butanol vapor at 1 atm is 99.6C. Cooling water at 25C and 1 atm is av..
steam enters one inlet of an adiabatic mixing chamber at 1.4mpa and 300 c. at the second inlet steam enters at 1.4mpa
a closed system consists of an ideal gas with constant specific heats that remain constant. the gas undergoes a proces
the gate in the is hinged at H.the gate is 2 m wide and normal to the palne of the diagram.calculate the force required to hold the gate closed.
100 lbm of water at 500 psi occupies 1.6 ft3. it undergoes a constant pressure process until the temperature is 600
the compression ratio of an air-standard ideal otto cycle is 10. prior to the isentropic compression process the air is
an 800 ft ship has a displacement of 35000 tons and the area defined by the waterline is 38000 ft2. will the ship take
consider steady flow of a constant property fluid in a long duct formed by two parallel planes. consider a point
Simics Central Simics can simulate real workloads at reasonable speeds Is the reported performance a result of optimization or simulator simplicity? What are some of the potential drawbacks of making a completely general simulation environment?
air initially at rest m1 0 with an initial pressure p1 1 atm and temperature t1 300k flows through a nozzle into a
air flow along a length of a 50x50cm square heated flat plate is in a large room the plates surface is at a uniform
current automotive air conditioners use r134a as a working fluid. assume an evaporator temperature of 0c in practice
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