Engineering, 17.07.2019 22:20, samsavage4073
Arefrigerator uses refrigerant-134a as the working fluid and operates on vapor- compression refrigeration cycle. the pressures of the evaporator and condenser are 0.2 mpa and 0.5 mpa, respectively. the isentropic efficiency of the compressor is 0.9. the mass flow rate of the refrigerant is 0.5 kg/s. assume that the refrigerator leaves the evaporator as saturated vapor, and leaves the condenser as saturated liquid, and disregard any heat transfer and pressure drops in the connecting lines between the components. (a) show the cycle on a t-s diagram with respect to saturation lines; and determine (b)the rate of heat removal from the refrigerated space; (c) the rate of heat rejection to the environment (d) the coefficient of performance.
Answers: 2
Engineering, 04.07.2019 18:10, ashleybaber4966
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
Engineering, 04.07.2019 18:10, yasminothman02
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
Engineering, 04.07.2019 18:10, heidiburgos1own6c0
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
Arefrigerator uses refrigerant-134a as the working fluid and operates on vapor- compression refriger...
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