Visual technique for detection of gas-liquid two-phase flow regime in the airlift pump

Experimental study on the performance of an air-lift pump for artificial upwelling

Experimental and analytical investigations of airlift pumps operating in three-phase flow

Mass transfer efficiency of a vacuum airlift—Application to water recycling in aquaculture systems

Wave energy is being increasingly regarded as a major and promising resource since the artificial upwelling was invented. There are many different ways to convert wave energy to electricity and some other energy such as the power supply for artificial upwelling in this paper. An overview of wave energy converters in artificial upwelling application as well as the power systems and environmental energy conversions for the artificial upwelling all over the world is given in this article. Some basic principles are present, assessment and advices are shown for each category. Some suggestions of the outlook of power systems and wave energy converters in air-lift artificial upwelling application are also given.

Reviews of power supply and environmental energy conversions for artificial upwelling

The air-lift pump is a well-established method for vertical transport of liquids and solid-liquid mixtures. The objectives of the present study are to evaluate the performance of a pump under predetermined operating conditions and to optimize the related parameters for the use of the pump for two-phase mixtures of air and water when a compressor is readily available.This paper is focused on the general mathematical functions applicable to air-lift pump installations. The effect of various design parameters on the performance of air-lift pump is presented. A user-friendly computer program is developed on the basis of the optimization of influencing variables. This program will be useful for the design and installation of an air-lift pump handling air-water mixtures. A comparative study of an air-lift pump with a centrifugal pump handling two-phase mixtures is also discussed in the paper.

Performance analysis of air-lift pump design:

Airlift pumps are finding increasing use where pump reliability and low maintenance are required, where corrosive, abrasive, or radioactive fluids must be handled and when a compressor is readily available. The objective of the present study is to evaluate the performance of a pump under predetermined operating conditions and to optimize the related parameters The effects of design parameters viz. mass flow rate of air, immersion ratio, diameter of rising main etc. on the performance of airlift pump are presented. The larger diameter of rising main is found to be suitable for high flow rate of water. The injecting device used in the system has considerable effect on the performance of the pump. The paper is focused on the general mathematical expression to determine the effective diameter of nozzle applicable to air lift pump installations in the diameter range of 25.4 mm < d < 101.6 mm. The various types of flows are visualized in the rising main of a pump and the corresponding airlift pump performance is analyzed. It is observed that the slug flow is more predominant for improving the performance of the pump.

/pdf/a-generalized-gas-liquid-two-phase-flow-analysis-for-1jowqc8vak.pdf

A generalized gas-liquid two-phase flow analysis for efficient operation of airlift pump

The Air-Lift Pump is a well-established method for vertical transport of liquids and solid liquid mixtures. The objectives of the present study are to evaluate the performance of a pump under predetermined operating conditions and to optimize the related parameters for use of the pump for two phase mixtures of air and water when the compressor is readily available. This paper is focussed on the general mathematical functions applicable to pump installations. The user friendly computer program is developed based on the optimization of influencing variables. This program will be useful for design and installations of air-lift pump handling air water mixtures. A comparative study of the air-lift pump with the centrifugal pump when handling two phase mixtures is also discussed in the paper.

/pdf/an-experimental-analysis-of-two-phase-flow-for-air-lift-pump-5gmafp14ib.pdf

D. G. Wakde

Papers

Performance analysis of air-lift pump design:

A generalized gas-liquid two-phase flow analysis for efficient operation of airlift pump

An experimental analysis of two phase flow for air lift pump design

An Experimental Analysis Of Two Phase Flow ForAir Lift Pump Design