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Consider a domestic refrigerator running an ideal vapor-compression cycle using Refrigerant 134a. Assume that saturated vapor enters the compressor at -10 C, and saturated liquid leaves the condenser at 30 C. The mass flowrate of the 134a is 3 kg/min. What compressor power is needed to drive this system? What is the COP? How quickly could this refrigerator freeze a typical tray of ice cubes?
two workstations are being conciered by your company. machine 1 costs 12000 new and 1300 to operate and maintain each
what is value of convective heat transfer coefficient for pebble glass in air medium?
The diameter of the steel pin at C is 0.375in and the ultimate shear strength is 54ksi. If a factor of safety of 2.0 is required in both the strut and the pin at C. determine the maximum load P that can be supported by the structure.
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