Experimental Investigations on Spray Characteristics in Twin-Fluid Atomizer
A twin-fluid atomizer was designed and developed for fuel atomization.The droplet characteristic in the spray which was produced with the atomizer was investigated experimentally.Air flow induced in the atomizer causes a pressure reduction, hence the fuel is sucked into the atomizer.The mixture flow of air and liquid caused the atomization downstream due to the turbulence.In the twin-fluid atomizer, atomization is attained by injecting an air stream at tip of the liquid inlet port.In this research, the test liquid supply pressure was kept constant and the air flow rate through the atomizer was varied over a range of air supply pressure to obtain the variation in air liquid mass flow ratio (ALR) from 0.2 to 2.7.The results revealed that the air assisted atomizer had a capability to inject the test liquid in the range of the rates of 0.0019-0.00426 kg/s, with the use of air pressure supplied from 68.9 to 689 kPa.The images of the spray were obtained with a shadowgraph technique and analyzed to obtain the particle size and its distribution.Droplet size from twin-fluid atomizer had various sizes in the range of about 17-200 urn.The atomizer can be applied for aerosol and combustion purposes.
Air liquid mass flow ratio (ALR) Air assisted atomizer Twin fluid atomizer shadowgraph technique Droplet size
Pipatpong Watanawanyoo Hiroyuki Hirahara Hirofumi Mochida Teruyuki Furukawa Masanori Nakamura Sumpun Chaitep
Graduate School of Science and Engineering,Saitama University,Saitama,Japan,338-8570 Department of Mechanical Engineering,Saitama University,Saitama,Japan,338-8570 Department of Mechanical Engineering,Chiang Mai University,Chiang Mai,Thailand,50200
国际会议
International Conference on Advances in Engineering 2011(2011年工程研究进展国际学术会议 ICAE2011)
南京
英文
866-872
2011-12-17（万方平台首次上网日期，不代表论文的发表时间）