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Consider a thin thermocouple that behaves like iron having dimensions of 0.5 × 0.1 × 0.005 in. Calculate the time constant for such a thermocouple when exposed to an airstream with a convection heat-transfer coefficient of 100 W/m2 · ?C.
Over time, dust accumulates on the refrigerator's con- denser coil, which is located behind the refrigerator, increasing the hot side resistance to Rh,d = 0.1 K/W. It is desired to have a refrigerator cooling rate of qin = 750 W. Using the results ..
Write Three ways used to perform Heat treatment ? Select three out of six ways.
one pound-mass of air at 78 degrees f and 75 psia is contained in a piston-cylinder device. during a reversible process
the cost per hour of running a ship at a speed of v knots is pound 4 v3 2048. find the speed which makes the cost of
a four cylinder two stroke diesel engine has a cut-off ratio of 1.8 and a compression ratio of 22. it operates with an
Find the moment of inertia of a solid cylinder of mass 'M' and radius 'R' about a line parallel to axis of the cylinder and on the surface of the cylinder.
A pilot in an airplane flying horizontally with constant speed of v = 480 km/hour at an elevation of h=610 m above a level plain wishes to bomb a target B on the ground as shown below. At what angle below the horizontal should he see the target at th..
water flows through a horizontal pipe at a rate of 1gals. the pipe consists of two sections of diameters 4in and 2in
a 1050 hot-rolled steel of diameter 300mm has an ultimate tensile strength of sut724mpa that is hot-rolled is exposed
A heated cylinder, 0.0635 m long and 0.0127 m diameter, is exposed to an air stream in cross flow arrangement having air speed of 10.5 m/sec. If the cylinder surface temperature is 50 C and the air temperature is 22 C, estimate the power required to ..
The system acetone(1) and methanol(2) is well represented by the one parameter Margules equation using A = 0.605 at 50 degrees C. a) What is bubble pressure for an equimolar mixture at 30 C?
Solar energy reaching the earth is about 1350 W/m2 outside the earth’s atmosphere and 950 W/m2 on earth’s surface normal to the sun on a clear day. Someone is marketing 2 m 3 3 m photovoltaic cell panels with the claim that a single panel can meet th..
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