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Two Independent Numerical Studies Demonstrating How to Efficiently Eliminate Electrolysis Side Reactions in Magneto-Hydro-Dynamic Pumping System
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作者 Adam Bouras Raoudha Chaabane Kamel Charrada Rachid Sald 《Journal of Chemistry and Chemical Engineering》 2012年第6期536-546,共11页
In this work, a numerical study for designing a new kind of MHD (Magneto-Hydrn-Dynamic) pumps is presented. This technique makes a compromise between electrolysis prevention and high flow rate performance. This tech... In this work, a numerical study for designing a new kind of MHD (Magneto-Hydrn-Dynamic) pumps is presented. This technique makes a compromise between electrolysis prevention and high flow rate performance. This technique should eliminate electrolytic bubble generation, electrodes wear and fluid propriety modification. All these side phenomena are prevented by considering isolated electrodes. The numerical presented results in this paper demonstrate that continuous MHD pumping is possible with isolated electrodes. The MHD excitation combines a high frequency altering current with a low frequency altering magnetic field. In order to validate our results, two independent theoretical methods for computing flow rate are followed. The two presented independent approaches show that high flow rate is possible even with isolated electrodes. To overcome the problem of dimensioning this kind of pumps, a generic numerical analysis is proposed. Hence, the pump performances as functions of the external parameter are studied and tools to calculate for a given fluid and the optimal high frequency regime are provided. 展开更多
关键词 Magneto-Hydro-Dynamic iorenz force high frequency regime electric line model characteristic impedance high flow rate.
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