how to make diy air lift pump simple step by step guide

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how to make diy air lift pump in this video I will guide you how to build an diy air lift pump simple step by step guide you need to know • If you want to learn more about Airlift and koi fish keeping click here https://www.giobelkoicenter.com/ • The theory and principle of airlift pumps were described in detail by Nicklin.(5) From a simple conceptual viewpoint, air bubbles act as pneumatic pistons, pushing or drawing water up a pipe or stack as they rise and expand. A more precise explanation describes the pumping action as the result of an air-water mixture. The air-water mixture is less dense than and therefore is displaced by the surrounding water of higher density. • • Airlift pumps are widely used by aquaculturists. Common airlift applications are to pump, circulate and aerate water in closed, recirculating systems as well as in ponds. Several researchers have examined the performance characteristics of airlift pumps used for aquacultural applications. Castro et al.(4) and Castro and Zielinski(3) studied performance for 1.27-8.0 cm diameter airlifts at different levels of submergence (40-100%) in water tanks. Parker and Suttle(6) examined the performance characteristics of 3.75-30 cm diameter airlift pumps at various air flow rates and air injection depths at 100% submergence (level flow) in ponds, and concluded that 7.6-10 cm diameter pumps were the most practical. • • Centrifugal blowers are one of the most effective and inexpensive methods to produce or pump air because they produce relatively high volumes of air at low operating pressures. One might conclude from the results of Parker and Suttle(6) that individual, large-diameter pipes are the most effective airlift pumps. However, that does not take into consideration actual, and most efficient, blower operating pressures. The purpose of this study (7) was to test airlift pumping characteristics for a specific design configuration and to determine reasonable expectations of water pumping capacity under practical field conditions. • • • Methods • • Airlift pumps were constructed from commonly used and readily available materials and equipment (PVC and polyethylene pipes, PVC fittings, stainless steel ring-clamps and a centrifugal blower). Pumping capacities were determined for floating airlift pumps (Fig. 1A, basic test configuration) powered by a 2.5-hp (1.9 kw) centrifugal blower. Airlift pumps, 185 cm long, were made from PVC pipes of 7.6, 10.2 and 15.2 cm inner diameters. Air was injected through a 2.5-cm inner diameter pipe (14.12 m long) at 50, 65, and 80 cm below the discharge outlet. The bottom of the discharge outlet ranged from 0-2.5 cm above the water surface and was buoyed with foam flotation. Air flow rates were varied between 71 and 324 liters per minute (L/min) and corresponding water flow rates were measured. Operating pressures were recorded for each airflow rate tested.

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