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Engineering Solutions
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Gas & Steam Turbines and Air Compressor
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Understanding gas flow for improved clean energy applications
Scientists have designed mathematical expressions that more accurately estimate gas movement through nanosized pores. This could help improve fuel cell development.
Many engineered devices depend on the flow of gases through a porous medium. In catalytic converters, for example, harmful automobile exhaust gases pass through a porous medium of ceramic beads coated with a catalyst that converts them into harmless compounds. Also, in fuel cells under development for eco-friendly vehicles, hydrogen and oxygen pass through a porous catalyst that converts them into water, producing electricity.
Engineers need a clear understanding of how gases move through porous media to improve these devices. However, it is difficult to measure the transport of molecules through nanosized pores.
Researchers at Tohoku University in Japan specializing in rarefied gas dynamics, together with colleagues at Honda R&D Co., Ltd., used computer-based simulations to develop two mathematical expressions that estimate gas flow velocity through a porous medium.
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Surface Protections from High Temperature, Chemicals and abrasive!
Surfaces Protection
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