Jiafeng Yao
Department of Advanced Mechanical Systems, Graduate School of Science and Technology, Kumamoto University, Kurokami 2-39-1, Chuou-Ku, Kumamoto City, 860-8555, Japan
Keiichi Tanaka
Department of Advanced Mechanical Systems, Graduate School of Science and Technology, Kumamoto University, Kurokami 2-39-1, Chuou-Ku, Kumamoto City, 860-8555, Japan
Akimaro Kawahara
Department of Advanced Mechanical Systems, Graduate School of Science and Technology, Kumamoto University, Kurokami 2-39-1, Chuou-Ku, Kumamoto City, 860-8555, Japan
Michio Sadatomi
Department of Advanced Mechanical Systems, Graduate School of Science and Technology, Kumamoto University, Kurokami 2-39-1, Chuou-Ku, Kumamoto City, 860-8555, Japan
ABSTRACT
Experimental studies were conducted for a special air assisted atomizer patented by Sadatomi and Kawahara (2012); in which atomization is attained by supplying the pressurized air alone into a mixing chamber inside the nozzle, and water can be sucked automatically with siphon principle. Since the energy for atomization is only supplied by an air compressor, consumption of energy to produce a fine spray is lower than usual twin-fluid-type atomizers. In our previous study, experimental and analytical results for the atomizer of small size with outlet of 7 mm i.d. were reported. In the present paper, in order to test the scaling capability of the atomizer, similar experiments have been conducted for that of medium size with outlet of 14 mm i.d. In the experiments, atomizers with a series of outlets in different lengths were tested since some spraying effects (vacuum pressure, diameter of droplet, etc.) are considered to be influenced by the lengths of outlet. In addition, six types of PET (Polyethylene Terephthalate) propellers with different blades and outer diameters were tested to expand the spray dispersion. After the optimization of the middle sized atomizer, comparisons of atomization performance were made between the two sized atomizers, and the superiority of the small sized atomizer was confirmed.
PDF References Citation
Received: August 02, 2013;
Accepted: October 08, 2013;
Published: November 13, 2013
How to cite this article
Jiafeng Yao, Keiichi Tanaka, Akimaro Kawahara and Michio Sadatomi, 2013. Performance Evaluation of an Air Assisted Atomizer with Liquid Siphon. Journal of Applied Sciences, 13: 4985-4993.
DOI: 10.3923/jas.2013.4985.4993
URL: https://scialert.net/abstract/?doi=jas.2013.4985.4993
DOI: 10.3923/jas.2013.4985.4993
URL: https://scialert.net/abstract/?doi=jas.2013.4985.4993
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