Water delivery performance of PVC airlift pumps of different pipe sizes and configurations

Date

6-2016

Degree

Bachelor of Science in Agricultural and Biosystems Engineering

Major Course

Major in Land & Water Resources Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Aurelio A. Delos Reyes

Abstract

Water delivery performance of PVC airlift pumps were evaluated at different air flow rates, pipe diameter, lift height, submergence-lift ratio (S/L), and configurations of inlet and outlet. It was concluded that as air flow rate increases, water flow rate also increases until a maximum flow rate. Lower lift height and higher S/L ratio resulted to higher water flow rates especially for larger diameter pipes. Considering the water flow rates obtained for set ups of different lift heights of 0.3, 0.4, and 0.5 and S/L ratios of 2, 3 and 5, the highest water flow rate of 46.4 Lpm was observed at S/L ratio of 5, diameter of 50 mm with two injection points and an air flow rate of 24.1 Lpm. There was significant difference when using different configurations of inlet and outlet. Higher water flow rates were obtained with the elbow as outlet with either tee or 60 degrees cut as inlet. Based on the study, 1.2 m pipe length with S/L ratio of 5 was applicable for all diameters. Water flow rates of 14.4-15.1 Lpm can be obtained for 25 mm diameter 24.4 to 25.6 Lpm for 32 mm 30.4 to 32.0 Lpm for 50 mm with one injection point 5.2 to 16.0 Lpm for 63 mm with one injection point for 63 mm with two injection points.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2016 A2 S22

Document Type

Thesis

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