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Refrigerant 134a is compressed at steady state from 2.4 bar, 0oC, to 12 bar, 50oC. Refrigerant enters the compressor with a volumetric flow rate of 0.38 m3/min, and the power input to the compressor is 2.6 kW. Cooling water circulating through a water jacket enclosing the compressor experiences a temperature rise of 4oC from inlet to exit with a negligible change in pressure. Heat transfer from the outside of the water jacket and all kinetic and potential energy effects can be neglected. Determine the mass flow rate of the cooling water, in kg/s.
water at 10 kpa and 40 c enters the pump of a rankine cycle. the pump has an effiiciency of 82 and pumps the water up
a piston cylinder device initially contains steam at 200 kpa 200 degree c and 0.4 m3. at this state a linear spring is
Acceleration was uniform. If it assumed that the acceleration was uniform where the magnitute of the volocity of an airplane was changed from 120mph to 360mph in 6 seconds.
approximately how many pounds of downward pressure is placed on a piston in an internal combustion engine at the moment of ignition? I know this will vary some depending on the type fuel, the size of the combustion chamber and ect.
suppose that 1000 is deposited into an account that pays 5 intrest per year. at the end of each year th amount in the
to analyze the motion of a body that is traveling along a curved path to determine the bodys acceleration velocity and
a shrink fit assembly is to be performed on a pin and collar. with the starting dia. being 0.875 the pin needs to be
A small droplet of liquid detergent, falling through air in a spray drying tower, has its diameter reduced as water evaporates from the surface. If we assume that the temperature of the liquid within the drop remains at 290 K and the dry air is at..
air in a piston-cylinder assembly expands slowly from an initial state where the pressure is 250 kpa and the volume is
a 0.4m3 rigid tank initially contains refrigerant-134a at 14 degree c. at this state 70 of the mass is in the vapour
Evaluate the valve closure to achieve a water exit velocity
the crane shown below consists of a 10 m swinging arm that is pinned at point a in the horizontal axis. the load at
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