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An air conditioner is a refrigerator with the inside of the house acting as the cold reservoir and the outside atmosphere acting as the hot reservoir. Assume that an air conditioner consumes 1.70 X 103 W of electrical power, and that it can be idealized as a reversible Carnot refrigerator. If the coefficient of performance of this device is 3.30, how much heat can be extracted from the house in a day?
argon gas enters a turbine operating at steady state at 100 bar 325 k and expands adiabatically to 40 bar 235 k with no
1. the contraption below has a face cam with an elliptic pro?le pushing a push rod against a spring. the face cam is
A tank initially filled with 500 lb liquid water is being filled with water through two inlet pipes. One delivers hot water at mass flow rate of 1.5 lb/min and the second delivers cold water at a mass flow rate of 3 lb/min. A single exit pipe is drai..
The refrigerant is now allowed to cool. Determine the pressure when the refrigerant first starts condensing. Also, show the process on a P-v diagram with respect to saturation lines.
Consider a DC motor driving a mechanical load as shown below:)Find the time domain solution for x(t) given the to the applied voltage: ea(t) = 5, t > 0 and in Matlab, plot the function x(t) from t = 0s to t = 10s.
A belt moves upward at velocity V, dragging a film of viscous liquid of thickness h, as in Fig. C4.2. Near the belt, the film moves upward due to no slip.
Advanced Stress Analysis Assignment
the pump of a water distribution system is powered by a 6-kw electric motor whose efficiency is 95. the water flow rate
A 10 lbm block is pushed down a frictionless incline with a force of 5 lbf. the incline is 30 degrees relative to the horizontal. if the block starts from rest, what is its speed after it has been pushed 12 ft. Assume that gravity is 32.0 ft/ sec^2
An insulated piston-cylinder device contains 7L of saturated liquid water at a constant pressure of 175 kPa. Water is stirred by a paddle wheel while a current of 6.2A flows for 75 min through a resistor placed in the water. If one half of the liquid..
an inventor claims to have devised a refrigeration cycle that at steady state requires a net power of .8 hp to remove
The race car stars from rest at s = 0 and travels along a straight road. Its v-t graph is obtained as shown. The flat part of the graph is caused by shifting gears. Determine the acceleration, velocity, and position
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