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Medium fuel oil at 25°C is to be pumped at a flow rate of 200 m3 / h through a DN 125 Schedule 40 pipe over a total horizontal distance of 15 km. The maximum working pressure of the piping is to be limited to 4800 kPa gage and the pumps being used require an inlet pressure of at least 70 kPa absolute. Determine the number of pumping stations needed to traverse the total distance. Sketch your design. What would be an advantage to changing the pipe to Schedule 80 or Schedule 160?
Determine Temperature of ball after 10 second and Time for ball to cool to 400oC - Alloy steel ball of 2 mm diameter heated to 800oC is quenched in a bath at 100oC.
an air-standard brayton cycle has compressor inlet conditions of 310 k and 98 kpa and turbine inlet conditions of 882
air flows steadily at rate of 0.4kgs through an air compressor entering at 6ms with a pressure of 1 bar and specific
a small 110-g particle is projected with a horizontal velocity of 2ms into a the top a of the smooth circular guide
A thin walled tube with closed ends has an inside radius of 80mm and a wall thickness of 6 mm. It is subjected to an internal pressure of 20 MPa, a torque of 60 kN*m, and an axial compressive force of 200 kN. Determine the maximum normal stress and t..
Derive an equation that relates the measured potential of the cell in (b) to pAsO4 (assume that the junction potential is zero).
a piston cylinder device contains 1 kg of liquid water at 200kpa and 25oc. heat is added to the water in the cylinder
A rigid insulated tank contains 0.6 kg of air, initially at 200 kPa, 20 C. The air is stirred by a paddle wheel until its pressure is 250 kPa. Using the ideal gas model with Cv = 0.72 kJ/(kg*K), determine, in kJ, (a) the work, (b) the change in exerg..
Important information about Multipal choice question on mechanics, A machine is supplied energy at a rate of 4,000 W and does useful work at a rate of 3,760 W. What is the efficiency of the machine?
steam enters a diffuser operating at steady-state with a pressure of 15 psia a temperature of 300 ordmf and a velocity
a piston-cylinder assembly contains a 2 phase liquid-vapor mixture of water initially with a pressure of 500 kpa and a
A power cycle operates between a reservoir at temperature TH and a lower-temperature reservoir at 280 K. At steady state, the cycle develops 40 kW of power while rejecting 1000 kJ/min of energy by heat transfer to the cold reservoir. Determine the mi..
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