Engineering, 27.05.2020 21:58, gingerham1
An electronic component consists of 25chips arranged in the form of a square of 5chips x 5chips, adjacent to each other. Each chip is of a surface of 0.01 m x 0.01 m (i. e. 1 cm x 1 cm), giving a total surface for the electronic component of 0.05m x 0.05m. The chips are all attached to a circuit board, which is then exposed to a coolant fluid. The surface of the circuit board is at a temperature (Ts) of 360K, while the fluid is at a temperature (T[infinity]) of 285K, flowing at a velocity (V) of 0.5m/s. Assume the circuit board reaches a uniform surface temperature and neglect any radiative losses. What is the heat rate dissipated through each chip?
Answers: 2
Engineering, 03.07.2019 14:10, bryneosburn
Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned
Answers: 2
Engineering, 04.07.2019 18:10, caitlynnpatton1208
Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.
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
An electronic component consists of 25chips arranged in the form of a square of 5chips x 5chips, adj...
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