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Aquaponics: Paradigm Shift with Airlift PDF

33 Pages·2013·3.12 MB·English
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Aquaponics: Paradigm Shift with Airlift part 2 Dr. Tetsuzan Benny Ron and Glenn Martinez Aquaponics: Paradigm Shift with Airlift Webinar Series eXtension Sponsored by Vanessa Weldon , vmaxwell24@gmail.com Freshwater Aquaculture eXtension Community http://www.extension.org/freshwater_aquaculture Introduction to Glenn Martinez Olomana Gardens Oahu, Hawaii http://www.olomanagardens.com permaculture, inventing, designing, sustainable food growing systems, from backyard & schools to large scale farms American Samoa October 2011 Necessity is the Mother of Invention American Samoa October 2011 The Principle by which Airlift Pump is Operating: • The only energy required is provided by compressed air • This air is usually compressed by a compressor or a blower • The air is injected in the lower part of a pipe that transports a liquid • It usually bubbles into another larger diameter pipe The Principle by which Airlift Pump is Operating: • By buoyancy the air, which has a lower density than the liquid, rises quickly • By fluid pressure, the liquid is taken in the ascendant air flow and moves in the same direction as the air The Principle by which Airlift Pump is Operating: • The calculation of the volume flow of the liquid is possible thanks to the physics of two-phase flow. • Airlift pump technology is superb due to its simple structure. An airlift pump, powered by compressed air, raises fluid by entraining gas to reduce its density. 1. Air supply. 2. Liquid supply. 3. Air inlet port. 4. Air supply line. 5. Air port. 6. Air outlet. 7. Fluid intake. 8. Riser tube. 9. Air liquid mixture. 10. Pump outlet. L:Liquid, usually wastewater. LL:Liquid level. V:Vessel G:Gravel or solids.

Description:
Aquaponics: Paradigm Shift with Airlift part 2. Dr. Tetsuzan Benny Ron and Glenn Martinez Glenn Martinez. Olomana Gardens. Oahu, Hawaii.
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