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The impeller of a centrifugal pump has inner and outer diameters of 13 and 30 cm, respectively, and a flow rate of 0.15 m3/s at a rotational speed of 1200 rpm. The blade width of the impeller is 8 cm at the inlet and 3.5 cm at the outlet. If water enters the impeller in the radial direction and exits at an angle of 60° from the radial direction, determine the minimum power requirement for the pump.
steam enters a turbine at 300 deg c and exhausts at 20 kpa. it is estimated that the isentropic efficiency of the
as a designer you are required to develop a new closed sealed thermal energy storage cell that has a maximum reversible
a class room that normally contains 40 people is to be air conditioned with window air conditioning units of 5 -kw
Given that an activity's normal time and cost are 10 days and $400 and its crash time and cost are 5 days and $800, what is the activity's slope?
minimum weight design of a variable shape three-bar truss.numerical solution using the matlab optimization toolbox
question 1 a for the reciprocal lattice we know thatexpjg.r 1where g.r 2pit t an integernbsp r lambnc
As a 75 slug car travels along a horizontal, 3200 ft section of road, it changes speed from 5 mph to 60 mph. During this acceleration, how efficient is the car's engine assuming 1 gallon gasoline produces 120 MJ of energy when completely combusted in..
Sketch crystallographic planes with the following Miller-Brava is indices in a hexagonal unit cell: (a) 1(Bar)101 ; (b) 2(Bar)112 . Mark the origin and axes. Explain your answers.
a fruit juice containing 30 solids of molecular weight 100 g was placed in a tray length 100 cm height 90 cm width 8
a patent application describes a device that at steady state receives a heat transfer at the rate 1 kw at a
If the fin thickness and pitch are t = 1 mm and S = 4 mm, respectively, what is the value of the thermal resistance Rt,o for a one-half section of the fin array?
Electrical work is employed to heat 2kg of water from 298.15 K to 373.15 K. Determine the electrical work required, and the minimum work required (e.g., by using a heat pump instead).
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