Engineering, 25.01.2020 05:31, cherokeesiouxw72
Aroom is cooled by circulating chilled water through a heat exchanger located in the room. the air is circulated through the heat exchanger by a 0.25-hp (shaft output) fan. typical efficiency of small electric motors driving 0.25-hp equipment is 60 percent. determine the rate of heat supply by the fan–motor assembly to the room.
Answers: 2
Engineering, 03.07.2019 14:10, aliceohern
The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite
Answers: 3
Engineering, 04.07.2019 18:20, luisgonz5050
Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k
Answers: 3
Engineering, 04.07.2019 18:20, miguel454545
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
Aroom is cooled by circulating chilled water through a heat exchanger located in the room. the air i...
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