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Air enters a gas turbine with a velocity of 165m/s and a specific enthalphy of 2800KJ/kg and leaves with a velocity of 135m/s and specific enthalpy of 2175KJ/kg. The heat lost to the surrounding turbine is 32.5KJ/kg. Determine power developed by the turbine
Liquid water in a pumped flow system experiences varying pressures as it circulates through the system. One concern in designing any such system is to ensure that cavitation does not occur. If the water temperature during operation of a particular sy..
Five kg of water is in a closed rigid container with a volume of 0.3935 m3 and a pressure of 5.0 MPa. Draw and label the states and process on a P-v diagram and determine the amount of heat removed and work done when the pressure is reduced to 1.5 MP..
Water as a saturated vapor at 600 Â°F is contained in a piston-cylinder device that has an initial volume of 30 ft3. The device undergoes a constant temperature process, until the water reaches the saturated liquid condition. Draw and label the state..
Nitrogen in a piston-cylinder assembly undergoes a polytropic expansion process. Initially, nitrogen is at 125 C and 144 kPa. Then it is expanded to a state of 102 kPa and 90 C. determine the heat transfer and work for the process considering no chan..
A slow leak develops in an inner tube (volume, 0.5 ft3, temperature, 600F), wherein it takes 4 hours for the pressure to decrease from 30 to 25 psig. The mass flow rate of air per second under the conditions is given by 0.68pA/(RT)0.5, where the unit..
Explain how you would expect the strength and ductility of a crystalline material to change as the ASTM Grain size number change from 14 to 3.
Evaluate the concentration of vacancies in copper at 650C temperature. What temperature will be needed to heat treat copper such that the concentration of vacancies produced will be 1000 times more than the equilibrium concentration of vacancies at s..
Air at standard temperature and pressure flows through a horizontal galvanized iron pipe at a rate of 4.0 ft3/s. The pressure drop must not exceed 0.75 psi per 100 ft of pipe (and naturally we want to design the most economic pipe). What diameter sho..
What is the composition, in weight percent and atom percent, of an alloy that contains 105.0 kg iron, 20.3 kg of aluminium, and 2.0 kg of copper?
An insulated piston-cylinder assembly containing a fluid has a stirring device operated externally. The piston is frictionless, and the force holding it against the fluid is due to standard atmospheric pressure and a coil spring. The spring constant ..
the tie rod ab and a pipe strut ac are used to support a 100-kn load as shown in the figure. both members are made of
a cylinder has a capacity of 300 cubic feet and contains oxygen at a pressure of 3.1 mpa and temperature of 18 deg c.
a two-dimensional flow field is described by v-4yi-4xj. find a functional expression of the streamlines and sketch
steam is expanded in an adiabatic turbine from 3 mpa and 400 c to 30 kpa. the turbine generates 4947kw of power when
a slide projector contains a 500 w light bulb cooled by an internal fan that blows room air across the bulb at a rate
a consider a simply-supported low-alloy steel shaft ten feet in length and two inches in diameter. the shaft supports
if the standard deviations are obtained to be 4n-m and 5 rpm for torque-165 n-m and rotational speed-3000 rpm through a
basically a block is slid down from left side of the circle and when it reaches the middle of the bottom the speed of
three pieces of plywood are held together by a couple of washers one on each side of the plywood pieces and a steel
Consider the multi-fluid container that contains fluids of different SGs as shown except for one fluid. Given that the pressure measured by the gage is 15.5 psia and the pressure in the container is 108.55 kpa, calculate specific gravity of the missi..
the displacement vectors 46.0 cm at 15.0deg and 23.0 cm at 56.0deg both start from the origin and form two sides of a
A 10-lb block has an initial velocity of 10 ft/s on a smooth, horizontal plane. A force, F = (2.5 t) lb, where t is in seconds, acts horizontally on the block in its direction of motion. Determine an expression for the distance, s in terms of time, t
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