The extent to which the tip condition affects the thermal performance of a fin depends on the fin geometry and thermal conductivity, as well as the convection coefficient. consider an alloyed aluminum (k = 180 w/m*k) rectangular fin of length l = 10 mm, thickness t = 1 mm, and width w > > t. the base temperature of the fin is tb = 100°c, and the fin is exposed to a fluid of temperature t∞ = 25°c. assuming a uniform convection coefficient of h = 100 w/m2*k over the entire fin surface, determine the fin heat transfer rate per unit width qf’, efficiency ηf, effectiveness εf, thermal resistance per unit width r’t, f, and the tip temperature t(l) for the tip conditions: convection heat transfer, adiabatic, and infinitely long.
Answers: 2
Physics, 21.06.2019 17:50, Riplilpeep
Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.
Answers: 3
Physics, 22.06.2019 10:00, yasminlockser6
Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.
Answers: 2
Physics, 23.06.2019 00:30, asseatingbandit
Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?
Answers: 2
The extent to which the tip condition affects the thermal performance of a fin depends on the fin ge...
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