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CSME 2019/02
Volume 40 No.1
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73-82
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Investigating the Use of Na2SO4 and MgSO4 Electrolytic Solutions for Bulk Electrolysis Micro-Flowrate Pump
Chao-Kai Yanga, Jhih-Yuan Kea, Ming-Che Lina, Wen-Shih Lina and Tsung-Chieh Chenga
aDepartment of Mechanical Engineering (Jiangong Campus), National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
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Abstract:
A bulk energy-efficient electrolytic micro flowrate pump which generated the electrolytic gas to push syringe to inject the medicine are investigated in this paper. Two electrolytic solutions: Na2SO4 and MgSO4, are electrolyzed to use as the power resource for pump. The results indicated that the preparation time of syringe injection is shorter with MgSO4 electrolytic solution because of its lower impedance, as well as shortened entire operation time for the pump. However, the results also showed that it would be more difficult to control the process of electrolysis with MgSO4 electrolytic solution because it easily yield white MgO precipitants in electrolysis, which caused unstable syringe injection flow rate, and decreased operating efficiency of pump. On the other hand, when using Na2SO4 electrolytic solution with higher impedance, it will cause longer preparation region and entire operation time for the pump. Due to there’s no precipitants yielded from the process of electrolysis, thus its syringe injection flow rate would be stable and controllable, as well as higher operating efficiency. In addition, experimental result showed that a higher electrolytic current would result a higher syringe injection flowrate, and increase the operating efficiency for electrolytic pump.
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Keywords: micro flow, electrolysis pump, electrochemistry
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©
2019
CSME , ISSN 0257-9731
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