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Refrigerant Gas (r-134) at 500k and 70 degrees C enters an air-cooled condenser (heat exchanger) and leaves the condenser as saturated liquid at 500 kPa. The cooling enters the heat the heat exchanger at 100 kPa and 18 Degrees C with a volumetric flow of 450 (m^3/min.). after the heat exchange , the warm air leaves the condenser at 110 kPA and 65 degrees C. Using an average value of 1.005 kJ/kg.K as the specific heat at constant pressure of air, calculate the
A) Amount of heat lost by the refrigerant gas in the condenserB) Mass flow rate of refrigerant gas
At what location S will the combined moment of the weights of the man and platform about point B be zero?
pure aluminum is poured into a sand mold. the metal level in the pouring basin is 10 in. above the metal level in the
an electric moter drivers an axial fan assuming that the desired air velocity 65degree f existing the fan is 50mph and
The motion of a particle in defined by the relation x = t3 - 15 t2 - 20, where ‘x' is expressed in metres and ‘t' in seconds. Determine the acceleration of the particle at t = 3 seconds.
what happens if a positive edge dislocation meets a negative edge dislocation on the same slip plane with a parallel
steel rods of 0.05m diameter are heat treated by being passed through a heat-treating furnace in which the atmosphere
What will the ratio of the angle of twist be to that of the hollow shaft if the maximum shear stress in the material of 75 N / mm ^2 and what is the ratio of actual permissible shear stress?
air enters an adiabatic compressor at 20 degc and 100 kpa at a rate of 2 kgs and exits at 700 kpa. if the power input
consider a gas turbine with turbine staging and reheating. it operates under the following conditions.inlet air at 285
two astronauts are 1.2 m apart in their spaceship. one speaks to the other. the conversation is transmitted to earth
a 20 mw radial flow hydraulic turbine is to be designed with a head of 70 m and a speed of 90 rpm. a geometrically
Design a wide flange, simply supported beam below so that the stress due to bending does not exceed that allowed by AISC for A36 steel and calculate the shear stress where the parts join as indicated. Maximum V = 10,000 lb.
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