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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.
Even as exploring a sunken ocean liner, principal researcher found the absolute pressure on the robot observation submarine at the level of the ship to be about 413 atmospheres. The density of seawater is 1025kg/m^3.
At what distance along the central axis of a uniformly chargedplastic disk of radius R = 1.40 m is themagnitude of the electric field equal to 1/9 times the magnitude ofthe field at the center of the surface of the disk?
A dedicated sports-car enthusiast polishes the inside and outside surfaces of a hubcap that is a section of a sphere. When she looks into one side of the hubcap, she sees an image of her face 30 cm in back of the hubcap. She then flips the hubcap ..
A 420g oscillator has a speed of 128.5cm/s when its displacement is 3.30cm and 59.5cm/s when its displacement is 5.40cm .what is the oscillator's maximum speed
What are the stages of appreciative inquiry and What are the main broad categories of interviews?
I ran an experiment in Lab. Placed a can of Tuna in a hot bath and a thermometer inside the can and one outside to measure temperatures inside the can and outside of it, respectively. In addition, also had a thermometer about 8in away from the Tuna..
A boeing 747 "jumbo jet" has a length of 59.7m the runway on which the plane lands intersects another runway. the width of the intersection is 25.0m. the plane decelerates through the intersection at a rate of 5.7 meter per second square and clears ..
The potiential energy of a + 2 * 10^-6 C charge decreases from 0.06J to 0.02J, What is the change in electric potiental between these two points
Saturn's moon Titan is the largest moon in the solar system. Its mostly-nitrogen atmosphere exerts a pressure of 1.60×105 Pa at the moon's surface.
a road rises 1ft for every 100ft it travels horizontally it is said to have a 15 grade. if the road you are traveling on has a 5 % grade what is the angle of the road above the horizontal
A jogger travels a route that has two parts. The first is a displacement of 2.00 km due south, and the second involves a displacement that points due east.
A flywheel turns through 36 rev as it slows from an angular speed of 4.8 rad/s to a stop. Calculate how much time is required for it to complete the first 18 of the 36 revolutions
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