整流器を備えたヘリカル型海流MHD発電機の基礎特性

概要

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In our work, experimental and computational studies of the helical-type seawater magneto-hydrodynamics (MHD) power generator have been performed as a part of applying superconductivity to maritime sciences. The helical-type generator has a disadvantage of flow loss caused by seawater rotation, so that the flow velocity inside the generator is suppressed. In order to solve this problem, the use of flow rectifiers is expected to be effective. In this study, the helical-type generator is improved with flow rectifiers, and the basic characteristics of the improved generator are investigated. The flow rectifiers 158mm long consists of a cylindrical tube 10mm in thickness and six vanes 5mm in thickness. Results of the experiment using artificial seawater are summarized as follows:(1) The maximum flow velocity increases by 10% due to a decrease of the flow loss. (2) The maximum electromotive force in the magnetic field of 7 T increases by 10% due to an increase of the maximum flow velocity. The results are discussed in comparison with the results of the theory.
神戸大学の論文
2006-07-31