Vortex Measurement at Bell-Shaped Pump Inlet Using Particle Image Velocimetry
Journal Title: Jurnal Kejuruteraan - Year 2018, Vol 30, Issue 2
Abstract
The vortex formed at the pump intake is known to be the main factor affecting the performance of a pump and it contributes directly to the increase of energy consumption. This study was aimed at obtaining an in-depth visualization and identifying the characteristics of the vortices generated by the installation of a bell-shaped suction inlet in a pump-induced flow using particle image velocimetry (PIV). A complementary metal-oxide semiconductor (CMOS) camera was used to capture images of the illuminated bubbles in a sump pump model. The PIV images were analysed using PIVlab, which provided representations of the 2-D plane velocities and vorticities around the inlet of the pump. The measurements were taken at four different planes that were coaxial with the bell circumference below the bell inlet. The results showed that the diameter of the vortex structure became smaller as it approached the bell inlet. Higher values of vorticity were observed within the vortex core, which conformed to the characteristics of a vortex formation. The velocity profiles exhibited the proportionality of the velocity against the radius of the vortex, which categorized this as a forced vortex. The findings from the study will be utilized by the Department of Irrigation and Drainage (DID) Malaysia to develop remedial measures for problems related to the formation of vortices in sump pumps.
Authors and Affiliations
Muhammad Azhar Akbar Batcha, Tajul Ariffin Norizan, Zulkhairi Zainol Abidin, Zambri Harun
Keywords
Related Articles
- EP ID EP455566
- DOI 10.17576/jkukm-2018-30(2)-11
- Views 107
- Downloads 0
A Rapid and Non-Destructive Technique in Determining The Ripeness of Oil Palm Fresh Fruit Bunch (FFB)
Oil palm industry is one of the main industries in Malaysia that contributes to the country’s gross domestic product (GDP). In the oil palm industrial sector, methods of planting, detection and assessment are very import...
Kajian Model Penukaran Kadar Hujan untuk Integrasi Masa 60 Minit kepada 1 Minit di Malaysia (Study on Rainrate Conversion Models for 60 Minutes to 1 Minute Integration Times in Malaysia)
The rapid development of wireless communication technologies has led the frequency band reach its saturated level, particularly in developed countries. This has drawn the attention of telecommunication systems engineer t...
Kajian Pelemahan Hujan pada Jalur Ku dan Jalur Ka di Malaysia Menggunakan Data Satelit TRMM (Study on Rain Attenuation at Ku and Ka-Band in Malaysia Derived From TRMM Satellite Data)
Attenuation due to rain can severely degrade the radio wave propagation at frequencies above 10 GHz. The impact is more severe in tropical and equatorial region like Malaysia which encounters higher rainfall intensity th...
Calibrating and Modelling of Statistical Delay for Signalized Intersections at Al-Nasiriyah City in Iraq
In this paper develops an empirical delay model for delay prediction by taking lane group parameters to make delay model in the field where delay have considered very important measure that effects at signalized intersec...
Kesan Kepekatan Mangan Terhadap Biojerapan Mangan oleh Pencilan Bacillus Cereus Tempatan (Effect of Initial Concentrations on Biosorption of Manganese by Locally Isolated Bacillus Cereus)
Problem of manganese (Mn) pollutions that found in water is highly toxic to living thing, which can cause gastro intestinal accumulation, low heamoglobin levels in blood, neurotoxicity, nausea, water appears reddish brow...