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A refrigeration cycle uses refrigerant 134-a as the working fluid. The refrigerant enters the expansion valve as a saturated liquid at 1.00 MPa and exits the valve at a pressure of 200 kPa. What is the temperature at the exit of the valve in oC? what is the internal energy (kJ/kg) of the refrigerant at the exit of the valve?
If the beam has square cross section of 9 in., on each side, determine the absolute maximum bending stress in the beam.
a hovercraft has a square planform a mass of 1.8 kg and has a plenum pressure requirement of 125 pa. a levitation fan
two tanks tank a and tank b are seperated by a partion. initially tank a contains 2 kg steam at 1mpa and 300 celsius
an ideal gas undergoes a thermodynamic cycle consisting of three processesprocess 1-2 isothermal compression from p1
2103 v 40 v b c qv e0pr2d r qdvpe012 r 4.24 m 42 a parallel-plate air-gap capacitor has a capacitance of 0.14 f.
1- find the decay constant of cesium-137 half-life 30.2 y then calculate the activity in becquerels and curies for a
a compressed air cylinder initially contains air at 25ordmc and 100 kpa. the volume of the cylinder is 0.01021 m3. the
a system has an initial volume of 10 ft3 and expands to a final volume of 20 ft3. the initial pressure is 15 psia. find
compare the effectiveness of quenching in moderately agitated water and oil by graphing on a single plot radial
r-134a is throttled from 1200kpa and 40oc to 200kpa. it is known that heat of 5kjkg is lost from r-134a to the
Determine metal removal rate, etching time, and required dimensions of the opening in the cut and peel maskant required to achieve the desired pocket size on the part.
a 0.5-m3 vessel contains 10 kg of refrigerant-134a at -20oc. determine a the pressure b the total internal energy and c
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