Control of cone-jet geometry during electrospray by an electric current |
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Authors: | Asep Suhendi Muhammad Miftahul Munir Adi Bagus Suryamas Asep Bayu Dani Nandiyanto Takashi Ogi Kikuo Okuyama |
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Affiliation: | 1. Department of Chemical Engineering, Hiroshima University, Hiroshima 739-8527, Japan;2. Department of Physics, Institut Teknologi Bandung, Bandung 40132, Indonesia |
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Abstract: | A new electrospray system has been successfully developed by employing a proportional–integral–derivative control action to maintain an electric current at a certain value. A polymer precursor solution containing polyethylene glycol was used to examine the performance of this system. The result showed that cone-jet geometry could be controlled easily by adjusting the electric current. The length of the cone-jet decreased as the electric current was increased, in a correlation that followed power law. We also found that the cone-jet observed during electrospraying was stable and robust with no disturbance during long periods of use (up to 4000 s). The present study is very useful for further development of high precision aerosol generators and particle synthesis. |
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