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We couldn’t do without pumps. They serve up water from the tap, circulate our car’s coolant, and the master of all pumps, the human heart, keeps us alive. Pumps are essential in countless areas of our lives, and they’re of two major types, positive displacement or centrifugal. We’ll start our discussion with a focus on positive displacement pumps. Our hearts belong to this category.
Master of All Pumps, the Human Heart As their name implies, positive displacement pumps displace, that is to say they move or circulate, a set quantity of liquid with each operating cycle. Your heart moves 2 to 3 ounces of blood with every heartbeat and up to 2,000 gallons of blood per day! Next week we’ll introduce an industrial application for a positive displacement pump when we install one in a food manufacturing plant. You didn’t think those jelly pastries filled themselves, did you? Copyright 2018 – Philip J. O’Keefe, PE Engineering Expert Witness Blog ____________________________________ |
