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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?
a .75 m3 rigid tank initially contains water at 250degc 50 liquid and 50 vapor by volume. a valve at the bottom of the
A rigid tank of 4 m^3 has air at 200 kpa and 33 c. if we know that the tank is connected to a supply line by a valve. And air is flowing in the supply line at 800 kpa and 22c. Then the valve is opened and air is now allowed to enter the tank until th..
A cable drum for a crane is to rotate between 160 and 166 rpm. Design a gear drive for 25 hp in which the input pinion rotates at 925 rpm and the output rotates with the drum. The crane is expected to operate with a 50% duty cycle for 120 hours per w..
infinite resistor network is shown below composed of resistors of resistance r0 on the horizontal lines and 2r0 on the
a gate with a circular cross section is held close by a lever 1 m long attached to a buoyant cylinder. the cylinder is
an ideal diesel cycle has r23 and rc1.86. determine the specific net-work i.e. net-work per unit mass flow in terms of
an unguided weapon is launched off a fighter aircraft flying at 500kts 844 fts straight and level at an altitude of
Note that the free-body diagram of the sphere should include its weight acting down and the buoyant force and the drag force acting up. The steel has a specific gravity of7.83. See also Chapter 2.
a rigid container is filled with 1 kg of water.the volume of the container is 125-l.the initial pressure of the
these include micrel mm5450 mic5821 allegro a6276ea ucn5832a and texas instruments tpic6c595. these are all serial
a rigid tank a of volume 0.6 cubic meters contains 3kg of water at 120 degrees celcius and rigid tankd b is 0.4 cubic
at the beginning of the compression process of an air-standard otto cycle p1 14.7 lbin2 and t1 530degr. the maximum
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