Pairan, Mohamad Rasidi and Osman, Sharul Azmir and Md Nasir, Ahmad Nabil and Noh@Seth, Nur Hazirah and Mohd Hisham, Mohd Hizwan and Mazlan, Adjah Naqkiah and Jambari, Hanifah and Aripin, Muhamad Afzamiman (2022) The blockage ratio effect to the spray performances. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 95 (1). pp. 99-109.
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Abstract
Nozzle sprays are used in wide range of application. The used of nozzle application is depend on the spray characteristics, by which to suit the particular application. This project studies the effect of the air blockage ratio to the spray characteristics. This research conducted into two part which are experimental and simulation section. The experimental was conducted by using particle image velocimetry (PIV) method, and ANSYS software was used as tools for simulation section. There are two nozzles were tested at 1 bar pressure of water and air. Nozzle A (with blockage ratio 0.316) and nozzle B (blockage ratio 1.000). Both of the sprays performances generated by the nozzles was examined at 9 cm vertical line from 8 cm of the nozzle orifice. The validation result provided in the detailed analysis shows that the trend of graph velocity versus distance gives the good agreement within simulation and experiment. From result, nozzle A generated a wider spray angle and higher water droplet velocity which are 31.41 degree and 37.317 m/s compared to nozzle B which has produced 27.13 degree of spray penetration angle and 16.49 m/s water droplet velocity. As a conclusion, blockage ratio has affected the spray system by increasing the velocity of air inside the spray system. This is happened at a condition of 1 bar air pressure.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Mist spray; cooling system; spray pattern. |
| Subjects: | T Technology > T Technology (General) |
| Depositing User: | Mr. Abdul Rahim Mat Radzuan |
| Date Deposited: | 19 Sep 2022 02:02 |
| Last Modified: | 19 Sep 2022 02:02 |
| URI: | http://eprints.uthm.edu.my/id/eprint/7691 |
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