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An ideal vapor-compression refrigeration cycle, with ammonia as the working fluid, has an evaporator temperature of 2208C and a condenser pressure of 12 bar. Saturated vapor enters the compressor, and saturated liquid exits the condenser. The mass flow rate of the refrigerant is 3 kg/min.
Determine
(a) the coefficient of performance.
(b) the refrigerating capacity, in tons.
a sketch three-dimensional views of the unit cell of a b.c.c. crystal showing a 100 plane a 110 plane a 111 plane and a
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you are driving your car with a manual transmission down a 6 grade and notice that when your foot is off the throttle
using excel find the value of the 97.5 confidence interval for a single-sample using the z variable and the students
A 1982 U.S. Department of Energy article (FS#204) states that a leak of one drip of hot water per second can cost $1.00 per month. Making reasonable assumptions about the drop size and the unit cost of energy, determine if this claim is reasonable. S..
using the mechanical energy balance estimate the time required for the water level to drop from an upper piece of tape
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an airplane is flying at 300 mih at 4000 m standard altitude. as is typical the air velocity relative to the upper
Air enters a frictionless duct with V1 = 70 m/s, T1 = 600 K, and P1 = 350 kPa. Letting the exit temperature T2 vary from 600 to 5000 K, evaluate the entropy change at intervals of 200 K, and plot the Rayleigh line on a T-s diagram.
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