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Determine the COP of a refrigerator that removes heat from the food compartment at a rate of 5040 kJ/ h for each kW of power it consumes. Also, determine the rate of heat rejection to the outside air.
Outside cool air at 15C and 40% relative humidity is mixed with inside air taken near the celling in a room at 32C and 70% relative humidity. Determine the relative humidity and temperature of the resultant air stream if the outside flow rate is 40 m..
An outside wall of a building is constructed of 1/2 inch gypsum sheeting, 8 inches of concrete block (hollow, 3 oval core), and 4 inches of common brick. The inside of the building is maintained at 75F dry-bulb temperature and 65F wet-bulb temperatur..
consider a steam power plant that operates between the pressure limits of 10 mpa and 20 kpa. steam enters the pump as
a water tank consists of a cylindrical part of radius r and height h and a hemispherical top. the tank is to be
a specimen of a 4340 steel alloy having a plane strain fracture toughness of 45 mpa m is exposed to a stress of 1000
in order to help design a water channel that will be constructed on the moon an experiment is being conducted on earth.
during some actual expansion and compression processes in piston-cylinder devices the gases have been observed to
materials have been used in engineering applications for thousands of years. sometimes these engineering structures or
a storage tank is 40 feet above a river. water is pumped from the river to the storage tank at a rate of 0.095m3s. the
consider a cylinder transistor diameter 0.4 cm and length 0.5 cm that dissipated 0.2w power onto 30c transistor1
air is compressed in a piston-cylinder device from 90 kpa and 20 degrees c to 400 kpa in a reversible isothermal
a shock absorber is to be designed to limit its overshoot to 15 percent of its initial displacement when released. find
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