Year-end Sale % OFF 
Abstract
In the current study, a novel design of an air injection system for an airlift pump was designed and tested. The pump has a circular cross-section and composed of three parts; suction pipe, injection system, and riser pipe. The riser pipe has a diameter of 31.7 mm and a length of 2 m. The performance of the pump was tested using different submergence ratios, ranging from 0.15 to 0.3, and the injected airflow rate was ranging from 1.65 kg/h to 13.32 kg/h. The results showed that both the airflow rate and the submergence ratio have a significant effect on the capacity and performance of the pump. Besides, it was found that the best range of pump efficiency was in the slug and slug-churn flow regimes. Moreover, the highest efficiency was at the most significant submergence ratio of 0.3. A reasonable enhancement in water flow rate was achieved using the current air injection design when compared with the conventional airlift pump injections system.
Highlights
INTRODUCTIONThe effect of a new foot-piece design of an air injection system on the performance of the airlift pump was investigated at different submergence ratios in [2]
For the churn flow regime, most of the gas phase is in a gas form, such that it occupies the whole cross-section of the riser pipe due to the increase in void fraction value
The principal characteristic of the air injection system design is the enhancement of the water flow rate that could be achieved at a certain submergence ratio
Summary
The effect of a new foot-piece design of an air injection system on the performance of the airlift pump was investigated at different submergence ratios in [2]. FME Transactions (2020) 48, 800-807 800 significant submergence ratios result in better efficiency and enhanced water flow rate. It was reported that the main parameters affecting the performance of the airlift pump are the flow pattern inside the riser pipe. One can notice that little work is available on the effect of both the mode of air injection (steady and unsteady) and the design on the airlift pumps’ performance. Various operational parameters are taken into consideration during the experiment, such as the flow rates of the injected air and the submergence ratio to study their effect on the performance of the airlift pump. The range of the airflow rate and submergence ratio is 1.65 to 13.32 kg/h and 0.15 up to 0.3, respectively
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
