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| Teaching Since: | Apr 2017 |
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bachelor in business administration
Polytechnic State University Sanluis
Jan-2006 - Nov-2010
CPA
Polytechnic State University
Jan-2012 - Nov-2016
Professor
Harvard Square Academy (HS2)
Mar-2012 - Present
A single-stage centrifugal pump is to be used to pump water through a vertical distance of 30 m at the rate of 45 L ·s−1. Suction and delivery pipes will have a combined length of 36 m and a friction factorf of 0.006. Both will be 150 mm diameter. Losses at valves, etc. are estimated to total 2.4 times the velocity head in the pipes. The basic design of pump has a specific speed of 0.465 rad (0.074 rev), forward-curved impeller blades with an outlet angle of 125◦ to the tangent and a width of impeller passages at outlet equal to one-tenth of the diameter. The blades themselves occupy 5% of the circumference. If a manometric efficiency (neglecting whirl slip) of 75% may be expected, determine a suitable impeller diameter
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