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A circumferential fin of rectangular profile is constructed of a material having k = 55 W/m-oC and is installed on a tube having a diameter of 3 cm. The length of the fin is 3 cm and the thickness is 2 mm. If the fin is exposed to a convection environment at 20oC with a convection coefficient of 68 W/m2-oC and the tube wall temperature is 100oC, calculate the heat lost by the fin.
two streams of air one at 1 bar 27degree and velocity of 30 ms and the other at 5 bar 227 degree and 50 ms velocity mix
a solid object of aisi 302 steel at a temperature of 850?c is quenched in mineral oil at a temperature of 25?c. the oil
water at 20 bar 400oc enters a turbine operating at steady state and exits at 1.5 bar. stray heat transfer and kinetic
Find Stall Speed (KEAS) at 1 G, 0 deg AOB and find Stall Speed (KEAS), level flight 70 deg AOB (2.9 G)
How many engagement points on the flywheel would be necessary to make this machine safe
a stream of gases at 7.5 bar 750 ordmc and 140 ms enters the turbine of a jet engine. the stream comes out of the
a turning operation calls for a single pass on a 3 diameter part down to 2.800 on a lathe using a hss high speed steel
helium initially at 160degf and 30 psia is slowly withdrawn from a well-insulated rigid tank of volume 7 ft2 until the
a distillation column with a total condenser and a partial reboiler is separating two feeds. the first feed is a
sketch the ewald sphere construction for the 200 diffraction with mo kalpha radiation and a poly crystalline specimen
A wooden board AB, which is used as a temporary prop to support a small roof, exerts at point A of the roof a 57-lb force directed along BA. Determine the moment about C of that force.
a shaft of radius r and length l is subjected to a uniformly distributed shear. the shaft is fixed at one end and not
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