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1. Explain why the bulk temperature defined by Eq. 7.7-3 is equal to T∞.
2. Air at atmospheric pressure and 90°F flows past a flat plate maintained at 600°F. The plate is 3 ft long and the air velocity is 105 ft/sec. Find the heat transferred from the plate, per foot of width.
3. Water at 100°F flows at a velocity of 14 ft/sec past a steam-heated tube 1 in. in diameter. If the outside surface of the tube is 187°F, find the heat transfer per unit length of tube.
a cylindrical tank measuring 0.75 m in diameter and 1.2 m high contains a transformer immersed in an oil bath that
Prepare a Journal paper on Renewable Energy
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a cylindrical rod with a diameter of 25mm is subjected to a torque of 500n?m and axial tensile force of 40kn.i draw a
A power cycle receives 1120 Btu by heat transfer from a reservoir at 1080o F and discharges energy by heat transfer to a reservoir at 280 o F. The thermal efficiency of the cycle is 68% of that for a reversible power cycle operating between the same ..
Impact of a Particle in a Circle A particle m is fired with initial velocity v0 from the intersection of a circle with radius R and the x-axis. Assume e = 1 and determine the coordinates of the third impact point of the particle with a wall in Fig..
Air at 500 kPa, 500 K and a mass flow of 600 kg/h enters a pipe passing overhead in a factory space. At the pipe exit, the pressure and temperature of the air are 475 kPa and 450 K, respectively. Air can be modeled as an ideal gas with k 5 1.39. K..
a solid circular cylinder of radius r rotates at angular veolicity omega in a viscous incompressible fluid that is at
a piston cylinder device contains 0.25 kg of air initially at 1.8 mpa and 360 degc. the air is first expanded
Calculate the elastic modulus and thermal conductivity perpendicular to continuous, reinforcing fibers in an E-glass (70 vol%) polyester composite.
an engineer is installing an open-end mercury manometer attached to a pipe that will eventually carry pressurized gas.
the driveshaft of a buildings air-handling fan is turned at 300 rpm by a belt running on a 0.3- m-diameter pulley. the
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