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An uninsulated thin-wall pipe of 75 mm diameter is used to transport water at a temperature of 3?C to an outdoor cooling tower. During the winter, the pipe wall achieves a steady-state temperature of-15?C and a cylindrical layer of ice forms on the inner surface of the pipe. If a convection heat transfer coe?cient of 2500 W/(m2K) is maintained at the ice/water interface, and the ice is at 0?C, what is the thickness of the ice layer?
Describe the machinability evaluation criteria, is it a quantitative or qualitative evaluation and describe the High Speed Machining of Steel/Iron or Aluminium
Calculate reactions of a simply supported continuous beam. A beam is simply supported at the ends and is continuous over two spans.
Calculate the velocity v of the collar as it hits the stop at B if it is elevated from rest at A by the action of the constant 40-N force in the cord. The cord is guided by the small fixed pulleys.
For a combined turbine-generator efficiency of 83%, determine the net electric output. Disregard the effect of the KE correction factors.
determine the torque that can be applied to a solid shaft of 20-mm diameter without exceeding an allowable shearing
Evaluate the position and magnitude of the maximum bending moment.
Derive at least four concept designs to satisfy the given specification. Use short written descriptions and simple sketches to illustrate your ideas
Determine the minimum no of teeth required on pinion in order to avoid interference which is to gear with 1 a wheel to give a gear ratio of 3 to 1
the 18 kg block starts from rest and moves upward when constant forces of 20 n and 40 n are applied to supporting
the system on site is a pressure sand filter with a service curve. the filter is backwashed using the feed pump at a
what is the rotation matrix for an object rotation of 30o around the z axis followed by 60o around the x axis and followed by a rotation of the y axis. all rotations are counter clockwise.
water flows at a rate of 20 ls through a horz pipe dia .03 m. the pressure drop across the valve in the pipe is
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