J028025 河川流発電のための生体模倣シール(Bio-Star)のトライボロジー特性(第2報)([J028-02]人々のくらしとバイオ(2))

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タイトル別名
  • J028025 Tribological characteristic of biomimetic sealing system (Bio-Star) for streamflow generation, 2nd report

抄録

Renewable energy research has been promoted to slow down climate change and maintain economic growth. Streamflow is valued as a source of energy, and environmentally friendly and low-friction sealing system that employs biomimetic technologies is proposed for its utilization. A dynamo-electric generator and ancillary systems with waterproof construction are installed under water. Lip seals with a rotating shaft function to prevent the ingress of water from the outside and excellent frictional properties with various rotation speeds are required to improve the power generation efficiency with constantly changing water flow. The sealing system was successfully developed using a hydrated material (polyvinyl formal; PVF) that mimics articular cartilage in a natural synovial joint. Polyethylene glycol (PEG) dissolved in distilled water, which is a non-Newtonian fluid, was used as a lubricant. These materials have low toxicity and low environmental impact. The biomimetic sealing system exhibits excellent frictional properties with extremely low ingress of water.

収録刊行物

  • 年次大会

    年次大会 2013 (0), _J028025-1-_J028025-4, 2013

    一般社団法人 日本機械学会

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