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Liquid water enters a valve at 300 kPa and exits at 275 kPa. As water flows through the valve, the change in its temperature, stray heat transfer with the surroundings and potential energy effects are negligible. Operation is at steady state. Modeling the water as incompressible with constant p = 1000 kg/m3, determine the change in kinetic energy per unit mass of water flowing through the valve, in kJ/kg.
a flywheel can be considered as being composed of this disk and a rim. the rim weighs 322lb and has a diameter of 24in
air in a piston-cylinder device has 400 degrees f 1000 kpa with a volume of 3.5 ft3. combustion heats it to 1500 k in a
Converging duct flow is modeled by the steady two-dimensional velocity field. For the case in which Uo = 3.56 ft/s and b = 7.66s^-1, Plot several streamlines from x = 0 to 5 ft and y = -2 to 2 ft. Be sure to show the direction of the streamlines.
consider a steam power plant that operates on a simple ideal rankine cycle and has a net power output of 45 mw. steam
water behind a dam enters an intake pipe at a pressure of 1.05 bar and velocity of 1 ms flow through a hydraulic
A battery of silicon photocells mounted on a plane surface operates with an efficiency of 16.7% under all conditions encountered in this problem. it is installed at a location 45 degrees north. the time is 10:00 on April 1, 1995. When the battery fac..
refrigerant-134a is throttled from the saturated liquid state at 700kpa to a pressure of 160kpa. determine the
a double acting hydraulic cylinder is hooked up in the regenerative circuit. the relief valve setting is 1000 psi. the
a conveyor belt rises at a thirty degree angle. its vertical hight measured from the ground is 20 ft sorry i cant seem
a cylindrical pressure vessel of diameter 2 m and wall thickness 20 mm is subjected to an internal pressure of 20 bar 2
What is the prudent economic decision - "sell or hold" - how many months from now, the beginning of these exercise?
air with mass flow rate of 0.4 kgs enters an insulated compressor operating at steady state.determine the power
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