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A pipe transporting water undergoes a sudden expansion. If the upstream pressure is 200 kPa and the mass ?ux is 40 kg=s, ?nd the pressure downstream, where a uniform ?ow can be assumed, and the head lost due to the expansion. Use the following dimensions:
(a) d1 ¼ 4 cm and d2 ¼ 10 cm
(b) d1 ¼ 4 cm and d2 ¼ 8 cm
(c) d1 ¼ 6 cm and d2 ¼ 12 cm
Explain how risk, certainty, and uncertainty influence the decisions that managers make. giving examples, or expressing opinions for your answer, and write the conclusion. This should give closure to the reader by giving a summary of what the body o..
Draw a general Wheatstone bridge and derive the output equation for a bridge comprising 3 resistors of equal value with one resistor changing an amount delta R?
The stators in a gas turbine are designed to increase the kinetic energy of the gas passing through them adiabatically. Air enters a set of these nossels at 270 psia and 795 F with a velocity of 97 ft/s and exists at 200 psia and 550 F. Calculate the..
a large pipe carries steam as a two-phase liquid-vapor miture at 1.0 mpa. a small quantity is withdrawn through a
A long concrete beam is to undergo a thermal test to determine its loss of strength in the event of a building lire. The beam cross section is triangular as shown in the sketch.
A piston-cylinder assembly contains a two-phase liquid-vapor mixture of H2O at 200 lbf/in^2. With a quality of 80%. The mixture is heated and expands at constant pressure until a final temperature of 480F is reached. Determine the work for the proces..
A combined cycle power plant burns natural gas and produces 600MW and has an efficiency of 48%. Find the whole sale cost of natural gas and determine the cost of the fuel burned per second for the plant to produce it rated output of 600MW
air enters an adiabatic compressor at 20 degc and 100 kpa at a rate of 2 kgs and exits at 700 kpa. if the power input
Water is to be supplied at a rate of 5000 kg/s to a hydro-electric generator located at the bottom of a lake at a height h. If the efficiency of the turbine-generator is 75% and of the generator 95%;
consider the constant -property steady laminar flow illustrated in fig 2p-4 a fluid flow through a very long tube in
The diameter of the steel pin at C is 0.375in and the ultimate shear strength is 54ksi. If a factor of safety of 2.0 is required in both the strut and the pin at C. determine the maximum load P that can be supported by the structure.
A compressor receives 0.1 kg/s R-134a at 150 kPa, -10C and delivers it at 1000 kPa, 40C. The power input is measured to be 3 kW. The compressor has heat transfer to air at 100 kPa coming in at 20C and leaving at 30C (i.e. like a heat exchanger). What..
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