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In a refrigerator cycle R-12 enters an evaporator as saturated liquid at 100.4 kPa. It exits with a negligible pressure drop as saturated vapor. It then enters a turbine where it is compressed to 1500 kPa at 100*c. Find the: cooling achieved and the work by the compressor. Is the compressor isentropic? IF the cooling is 300 KJ/kg and the work by the compressor is 300 kJ/kg what is the coefficient of performance for the system?
Consider a supersonic wind tunnel with test section Mach number of 2 and fixed geometry diffuser designed to operate with minimum stagnation pressure losses (smallest diffuser area).
the air velocity in a duct is measured by a Pitot-static probe connected to a differential pressure gage. if the air is at 13.4 psia absolute and 70 degrees C and the reading of the differential pressure gage is 0.15 psi, determine the air velocit..
a hot rolled shaft is subjected to torsional load that varies from 320 nm clock wise to 120 nm anti -clockwise and an
the enthalpy of combustion for propane is -2044 kjmol. how many liters of propane at stp must be burned in order to
in kidney dialysis a persons blood is passed through a bath that contains several ions and molecules. the blood is
A paper clip is made of wire 0.7 mm in diameter. If the original material from which the wire is made is a rod 25 mm in diameter, calculate the longitudinal engineering strain and true strain that the wire has undergone during processing.
consider a cylindrical specimen of some hypothetical metal alloy that has a diameter of 8.0 mm 0.31 in.. a tensile
The catapult is used to launch a ball such that it strikes the wall of the building at the maximum height of its trajectory. If it takes 1.5 s to travel from A to B, determine the velocity vA at which it was launched, the angle of release q, and t..
compressor air enters 100 kpa and 17c and exits compressor 600 kpa and 167c. mass flow rate of air is 2 kgmin amp power
horizontal stresses are estimated for a rock formation field in the gulf of mexico in depth of 5000 ft. as 6 ksi. it is
the uniform slender has a mass of 15 kg. determine the horizontal and vertical components of reaction on pin o and the
at a time when rotation is prevented at the lower end of each shaft a 80 n-m torque is applied at the end a of shaft
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