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Two refrigerators are arranged in series. One of them receives 300 kJ/cycle from a reservoir at 300 K. The heat rejection from this refrigerator serves as the heat input to the second refrigerator which delivers 1000 kJ/cycle of heat output to a reservoir at 1000 K. The two refrigerators have the same coefficients of performance. (a) Determine the heat exchange between the first to the second cycle (kJ/cycle) that occurs at the intermediate temperature. (b) What is the coefficient of performance of each refrigerator? (c) Compute the work required (kJ/cycle) to operate each refrigerator.
consider an ideal simple gas turbine cycle. for a net power output of 10000 horse power an inlet air temperature of
a garden hose attached with a nozzle is used to fill a 10-gallon bucket. the inner diameter of the hose is 2 cm and it
a man of mass m1 walks along a plank of length l with a constant acceleration a relative to the plank. The mass of the plank is m2 and the coefficient of friction between the plank and the ground is mu. Find the distance the plank moves if the man..
Determine the Final Velocity, An object whose mass is 1 lb has a velocity of 100 ft/s. How would I determine the final velocity, in ft/s, if the kinetic energy of the object decreases
a full-revolution press has 100 rpm flywheel rotation. the press is equipped with two-hand palm buttons mounted on the
20 kg of water at 200 kpa with a quality 25 is heated under a constant volume process until its pressure reaches 400
What would happen if the air filter was partially choked. If the piston rings were leaking state what you would expect the results of a, b, c, and d above would be.
the diagonal of a long triangular bar 45-45-90 triangle section is well insulated. while sides of equivalent length are
the 2.4m wide portion abcd of an inclined cantilevered walk-way is partially supported by members ef and gh. knowing
power system assignmentthe assessment to design a substation and the associated protection system. the transformer is
assuming a constant concentration gradient and constant number of atoms at the surface calculate the approximate
Determine (a) the exit temperature, (b) the exit relative humidity of the air, (c) the exit velocity.
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