An activated fluid stream – New techniques for cold water cleaning |
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| Institution: | 1. Chemistry, Natural and Environmental Sciences, University of Southampton, Southampton SO17 1BJ, UK;2. Institute of Sound and Vibration Research, Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, UK;1. Department of Chemical Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan;2. Faculty of Environment, University of Science, VNU-HCM, Viet Nam;3. Honda Electronics Co., Ltd., Toyohashi, Aichi 441-3193, Japan;4. Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan;1. Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran;2. Department of Chemical Engineering, Tabriz Branch, Islamic Azad University, 51579-44533 Tabriz, Iran;3. School of Mechanical Engineering, Yeungnam University, 712-749 Gyeongsan, South Korea;4. Center for Research Facilities, Yeungnam University, 712-749 Gyeongsan, South Korea |
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| Abstract: | Electrochemical, acoustic and imaging techniques are used to characterise surface cleaning with particular emphasis on the understanding of the key phenomena relevant to surface cleaning. A range of novel techniques designed to enhance and monitor the effective cleaning of a solid/liquid interface is presented. Among the techniques presented, mass transfer of material to a sensor embedded in a surface is demonstrated to be useful in the further exploration of ultrasonic cleaning of high aspect ratio micropores. In addition the effect of micropore size on the cleaning efficacy is demonstrated. The design and performance of a new cleaning system reliant on the activation of bubbles within a free flowing stream is presented. This device utilised acoustic activation of bubbles within the stream and at a variety of substrates. Finally, a controlled bubble swarm is generated in the stream using electrolysis, and its effect on both acoustic output and cleaning performance are compared to the case when no bubbles are added. This will demonstrate the active role that the electrochemically generated bubble swarm can have in extending the spatial zone over which cleaning is achieved. |
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| Keywords: | Bubble swarm Cleaning Stream Ultrasound Electrochemical |
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