Geometrical Effects on Spray Performance of a Special Twin-fluid Atomizer without Water Power and its CO2 Absorption Capacity

Yao, Jiafeng; Tanaka, Keiichi; Kawahara, Akimaro; Sadatomi, Michio

doi:10.3811/jjmf.27.511

Cited by 4 publications

(15 citation statements)

References 26 publications

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“…Fig. 3 shows the test apparatus for the twin-fluid type atomizer [4][5][6][7]. Air was supplied with a compressor after controlling the air volume flow rate, Q G .…”

Section: Test Atomizersmentioning

confidence: 99%

“…1 which is the twin-fluid type but has a merit because water is automatically sucked through a porous pipe by a negative pressure arisen downstream from the orifice in the mixer. Thus, the mixer can be operated with a lower electric power than the usual twin-fluid type, i.e., operable with a solar power [3][4][5][6][7][8]. The mixer is also usable as a micro bubble generator [9,10] when water is supplied and air is sucked.…”

mentioning

confidence: 99%

“…In our previous studies, a mathematical model to predict its hydraulic performance was proposed and validated [4], and better geometrical parameters were experimentally clarified [5][6][7][8], i.e., the diameter ratio of the orifice to the mixer pipe, the ratio of the outlet length from the porous pipe to the mixer pipe diameter, the geometry of the orifice, the whole size, and the CO 2 adsorption performance by the mists.…”

mentioning

confidence: 99%

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Air Purification Using Mists Generated by an Efficient Multi-fluid Mixer

Sadatomi¹,

Kawahara²,

Kawasaki³

2016

JEPE

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Sadatomi and Kawahara developed a special twin-fluid atomizer called a multi-fluid mixer, which can spray mists by supplying air alone because water is automatically sucked by a vacuum pressure arisen inside the mixer. In the present paper, firstly, some applications of the mists sprayed by the atomizer are described. Secondly, the performance of the twin-fluid atomizer with best performance was compared with those of the commercial twin-fluid MMA100 type together with the single-fluid swirl type. In the CO 2 adsorption tests, mists were sprayed five minutes by the respective types in turn in a test room, and time variations of CO 2 concentration in air after the introduction of CO 2 in the room were measured at the bottom of the room to compare the CO 2 adsorption rates by the mists for the respective cases. In addition, diameters of droplets for the respective types were measured with a microscope. As a result, superiority of our twin-fluid atomizer was confirmed, because 40% droplets were 20 to 40 μm in diameter, and the CO 2 adsorption rate by the mists with our twin-fluid atomizer was 25% higher than that with the commercial ones.

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“…Fig. 3 shows the test apparatus for the twin-fluid type atomizer [4][5][6][7]. Air was supplied with a compressor after controlling the air volume flow rate, Q G .…”

Section: Test Atomizersmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Air Purification Using Mists Generated by an Efficient Multi-fluid Mixer

Sadatomi¹,

Kawahara²,

Kawasaki³

2016

JEPE

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“…1 [1] which is categorized as a twin-fluid type but have a merit of water suction type. The mixer is usable to generate mists [2][3][4][5], fine liquid droplets, as well as microbubbles [6,7] when water is supplied and air is sucked. In the mists generation, pressurized air alone is supplied because water can be sucked automatically through a porous pipe by a negative pressure arisen downstream from an orifice in the mixer.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the mixer is called as twin-fluid water suction type atomizer in the present paper. In our previous studies [2][3][4][5], better geometrical parameters was clarified, i.e., the diameter ratio of the orifice to the mixer pipe, the ratio of outlet length from the rear end of the porous pipe to the mixer pipe diameter, the geometry of the orifice, and the whole size.…”

Section: Introductionmentioning

confidence: 99%

Comparison of mist generators between twin fluid water suction type and single fluid swirl type

Kawahara¹,

Tanaka²,

Sadatomi³

2015

Third International Conference on Advances in Mechanical, Aeronautical and Production Techniques - MAPT 2015

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Sadatomi and Kawahara invented a multi-fluids mixer which is categorized as a twin-fluid type but have a merit of water suction type. The mixer is usable to generate microbubbles, etc. besides mists, fine droplets. In the mists generation, pressurized air alone is supplied because water can be sucked automatically by a negative pressure arisen downstream from the orifice in the mixer. The objective of the present study is to compare the performance between the above twin-fluid type atomizer and a common single-fluid swirl type atomizer studied in the present experiments. The comparison results showed that the twin-fluid type was superior to the singe-swirl type in the performance of CO 2 adsorption by the mists.The CO 2 adsorption rate by the twin-fluid type was about twice. Such results on the experiments and the comparisons are described in this paper.

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Study Aiming at Low Power Two-Fluid Atomization System and Its Applications

Sadatomi¹,

Kawahara²

2014

JAPANESE JOURNAL OF MULTIPHASE FLOW

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Geometrical Effects on Spray Performance of a Special Twin-fluid Atomizer without Water Power and its CO2 Absorption Capacity

Cited by 4 publications

References 26 publications

Air Purification Using Mists Generated by an Efficient Multi-fluid Mixer

Air Purification Using Mists Generated by an Efficient Multi-fluid Mixer

Comparison of mist generators between twin fluid water suction type and single fluid swirl type

Study Aiming at Low Power Two-Fluid Atomization System and Its Applications

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