Engineering, 27.02.2020 17:15 Reganlist
A cylindrical aluminum fin has a 1cm diameter and is 30 cm in length. It is attached to a surface at 80 and is exposed to the air at 220. The thermal conductivity is 237 W/m*k and the heat transfer coefficient is 18 W/m*k. Assume the fin to be very long. What is the rate of heat transfer from the fin effectiveness?
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Engineering, 03.07.2019 14:10
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
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The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
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Engineering, 04.07.2019 18:10
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
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Engineering, 04.07.2019 18:10
Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines
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A cylindrical aluminum fin has a 1cm diameter and is 30 cm in length. It is attached to a surface at...
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