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Issue No:2 Vol.4 |
February -2011 |
ISSN: 0974-5645 |
| RESEARCH ARTICLES |
Reders.....Save |
| 12. Experimental investigations of air assisted pressure swirl atomizer. Digvijay B. Kulshreshtha, Saurabh Dikshit and S. A. Channiwala. Indian J.Sci.Technol. Vol.4, Issue 2, pp: 126-130. |
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- Abstract
In pressure-swirl atomizer, a swirling motion is imparted to the fuel, leading it under the action of the centrifugal force to
spread out in the form of a hollow cone as soon as it leaves the exit orifice. This kind of atomizer finds its use in gas
turbines and liquid propellant rockets. The combustion usually starts at the periphery of spray and the flame front
travels towards the center of the spray. The availability of air for combustion therefore decreases as the flame travels
towards the center of the spray from pressure swirl atomizer. The newer approach is to develop a swirling air core in
the center of the spray. This approach led to the development of air assisted pressure swirl atomizer. This paper
presents the experimental investigations of air assisted pressure swirl atomizer for spray cone angle and penetration
length at different injection pressure differential ranging from 3 bar to 18 bar in an increment of 3 bar. The results are
then compared with conventional pressure swirl atomizer; with same nozzle dimensions, same inlet pressure and
temperature, same mass flow rate and same injection pressure differential.
- Keywords: Air assisted pressure swirl atomizer, spray cone angle, penetration length, injection pressure.
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