Design Procedure of an Axial Flow Irrigation Pump

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Published: Nov 5, 2024
Keywords:
Thai irrigation pump Pump design Pump preliminary design Pump efficiency Pump performance

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K. Wasinarom
School of International and Interdisciplinary Engineering Programs, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
J. Charoensuk
Department of Mechanical Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
W. Sanghirun
The Joint Graduate School of Energy and Environment, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
S. Kaewnai
Department of Mechanical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
M. Jaikuson
Department of Mechanical Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand

Abstract

The paper presents the design procedure of an axial flow irrigation pump. It was designed to deliver a flow rate of 9,000 L/min with a head of 4 m at the Best Efficiency Performance point (BEP). The target hydraulic efficiency was 75%. It started with the preliminary design which predefined the inlet and outlet blade angle of the impeller and the stator vane using a triangular velocity diagram. After that, the other components in the pump system which are the inlet bell, duct, and trailing cone were constructed in the Computer Aided-Design (CAD) software. Then, the flow structure of the pump system was obtained using Computational Fluid Dynamics (CFD). The impeller blade channel, guide vane profile, and the flow channel throughout the pump system were improved to attain target efficiency. This was done by awareness of the development of high velocity (jet flow) and low velocity wake (wake flow) along the entire flow channel. The blade profile was adjusted to minimize wake region while the high jet velocity was reduced. By continuously improving the blade profile, the final version’s hydraulic efficiency was 75.27%. The head was 5.68 m with the flow rate of 11,676 L/min.

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How to Cite
Wasinarom , K., Charoensuk, J. ., Sanghirun , W. ., Kaewnai , S. ., & Jaikuson, M. (2024). Design Procedure of an Axial Flow Irrigation Pump. Journal of Research and Applications in Mechanical Engineering, 13(1), JRAME–25. Retrieved from https://ph01.tci-thaijo.org/index.php/jrame/article/view/254688
Issue
Vol. 13 No. 1 (2025): In progress
Section
RESEARCH ARTICLES
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