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0.75 kg of Refrigerant 134-a is compressed in a compressor from 160 kPa and -10°C to 1.2 Mpa and 50°C, steadily.
Determine the change in flow exergy of the refrigerant during this process, if the environment is at 100 kPa and 25°C.
the two blocks in the figureoscillate on a frictionless surface with a period of 1.7 s. the upper block just begins to
one-half kg of refrigerant-22 is contained in a piston-cylinder assembly initially saturated vapor at 5bar. the
a water line is planned to connect a new reservoir to an existing water treatment plant. the average water surface
an insulated system is divided into 2 parts by a partition . one part of the tank contain 2.5 kg of compressed liquid
moist air initially at 70 percent humidity and 5 c is heated to 25c. the input flow rate is 3000 cubic meters per hour
A bicycle floor pump has a cylindrical tube with an inside diameter of 1.0 inches. On the pump's upstroke, a diaphragm check valve opens and brings air in at 13.0 psia. The air is then transferred to the tire during the down stroke. The stroke length..
a 3-ft-diameter circular plate is located in the vertical side of an open tank containing gasoline. the resultant force
a transparent rigid container is filled with 2 gallons of water. initially the pressure is measured to be 10.2 psig
a spool of mass m214 kg inner and outer radii p1.84 m and r 2.23 m respectively and the radius of gyration kg 2m is
Exhaust steam from a turbine exhausts onto a surface condenser at a mass flow rate of 8000lbm/hr, 2psia, and 92% quality and leaves the condenser as a saturated liquid. Cooling water enters the condenser at 74 degrees far. and leaves at the steam inl..
a large plate contains a central crack of length 2 mm and is subjected to a cyclic stress normal to the crack which
would a flagpole made of steel or aluminum freeze ones tongue to it faster? why? thermal conductivity 2. the outer
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