The blockage ratio effect to the spray performances
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...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Semarak Ilmu
2022
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7691/1/J14531_7329b1117ffc476988959fa11b04325c.pdf http://eprints.uthm.edu.my/7691/ https://doi.org/10.37934/arfmts.95.1.99109 |
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| Summary: | 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. |
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