Engineering, 16.12.2019 17:31, cee837
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at 2358c by rejecting waste heat to cooling water that enters the condenser at 188c at a rate of 0.25 kg/s and leaves at 268c. the refrigerant enters the condenser at 1.2 mpa and 508c and leaves at the same pressure subcooled by 58c. if the compressor consumes 3.3 kw of power, determine
(a) the mass flow rate of the refrigerant,
(b) the refrigeration load,
(c) the cop
d) the minimum power input to the compressor for the same refrigeration load
Answers: 1
Engineering, 04.07.2019 18:10, skpdancer1605
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
Answers: 3
Engineering, 04.07.2019 18:10, soreese02
An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature
Answers: 2
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated...
English, 05.02.2020 07:56
English, 05.02.2020 07:56
Mathematics, 05.02.2020 07:56
Mathematics, 05.02.2020 07:56
Mathematics, 05.02.2020 07:56