Match the technologies to its uses.
...
Answers: 3
Engineering, 04.07.2019 18:20
Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k
Answers: 2
Engineering, 04.07.2019 19:20
Determine (a) the maximum thermal efficiency of reversible power cycles operating between a hot reservoir at 1000°c and a cold reservoir at 200°c and (b) the maximum cops for reversible refrigeration and heat pump cycies, respectively, between 28°c and 14°c.
Answers: 1
Engineering, 04.07.2019 19:20
Apreheater involves the use of condensing steam at 100°c on the inside of a bank of tubes to heat air that enters at 1 atm and 25°c. the air moves at 5 m/s in cross flow over the tubes. each tube is 1 m long and has an outside diameter of 10 mm. what is the minimum value of nl needed to achieve an outlet temperature of t 75 c? what is the corresponding pressure drop across the tube bank?
Answers: 3
Engineering, 06.07.2019 04:10
Ahousehold refrigerator operating steadily and with a coefficient of performance of 2.5 removes energy from a refrigerated space at a rate of 650 kj/h. evaluating electricity at $0.06 per kw.h, determine the cost of electricity in a month when the refrigerator operates for 360 hours.
Answers: 3
Health, 16.10.2019 08:30
Social Studies, 16.10.2019 08:30
Mathematics, 16.10.2019 08:30
Chemistry, 16.10.2019 08:30
History, 16.10.2019 08:30
Mathematics, 16.10.2019 08:30
Biology, 16.10.2019 08:30
Biology, 16.10.2019 08:30
Mathematics, 16.10.2019 08:30
English, 16.10.2019 08:30
Computers and Technology, 16.10.2019 08:30
Biology, 16.10.2019 08:30