Design of airlift pumps for water circulation and aeration in aquaculture

Aquacultural Engineering
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Abstract

Water flow rates were measured in airlift pumps 3·75-30 cm in diameter to develop performance data that might be useful to aquaculturists. Flows were determined when submergence of airlifts was 100% and when the center-line of the discharge was between 12·5 cm above and 5 cm below the water surface. Air was injected at 15-cm intervals from 15 cm to 120 cm below the discharge of the airlift and air flow was varied from 28 to 1416 liters min−1. An increase in the vertical lift reduced flow rates greatly in large-diameter pipes, but only slightly affected flow rates in small-diameter pipes. Water flow increased linearly as air flow increased logarithmically.

Publication type Article
Publication Subtype Journal Article
Title Design of airlift pumps for water circulation and aeration in aquaculture
Series title Aquacultural Engineering
DOI 10.1016/0144-8609(87)90008-2
Volume 6
Issue 2
Year Published 1987
Language English
Publisher Elsevier
Contributing office(s) Leetown Science Center
Description 14 p.
First page 97
Last page 110
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