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Repeat given Problem using R-134a instead of R-22 as the refrigerant.
Problem :A vapor-compression cycle refrigerator using R-22 as the working fluid has an evaporator temperature of -30.0°C and a condenser temperature of 50.0°C. The refrigerant enters the compressor at 7.50 kg/min as a saturated vapor and exits the condenser as a saturated liquid. The isentropic efficiency of the compressor is 82.5%. Determine
a. The coefficient of performance for the system.
b. The coefficient of performance for a reversed Carnot cycle with the same temperature limits.
c. The refrigeration (in tons) that this system can provide.
Draw a diagram illustrating a total solar eclipse. Include the orbital paths of the Earth and the Moon, and indicate the approximate time of day at which the eclipse is taking place.
the vector position of a particle varies in time according to the expression 5.60 - 6.80 t2 where is in meters and t
At 18°C, a brass cube has an edge length of 32 cm. What is the increase (in square cm) in the cube's surface area
During a cardiac cycle, the heart squeezes about 65g of blood on each contraction into the arterial circulation. what is the maximum force acting on the center of mass of the blood
for this module you will investigate the operation of antennas. antennas can both transmit and receive electromagnetic
The receiver for a dish antenna is located in front of the concave surface of the dish. If the radius of curvature of the dish is R, find how far in front of dish should receiver be located
you have a two-wheeled trailer that you pull behind your ATV. two children with a combined mass of 70.2kg hop on board for a ride through the woods, obtain frequency of the oscillation
Car has the mass M = 1100kg at 60.0 km/hour. What is the radius of the turn if theta = 20.0 degrees
The two metal objects in the figure have net charges of +68 pC and -68 pC, which result in a 28 V potential difference between them, What is the capacitance in picofarads of the system
According to Equation 20.7, an ac voltage V is given as a function of time t by V = Vo sin 2ft, what is the smallest value of the time at which the voltage equals one-half of the peak-value
What is the angular velocity of the tires in rad/s - Find the horizontal distance the arrow will travel before hitting the ground.
If Hawaii Cable is subject to a price cap regulation that enables it to break even, show in your graph the price, quantity, economic profit, consumer surplus, and deadweight loss.
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