Abstract

This paper introduces a new concept of coastal management system in order to protect beaches against erosion, by transporting sand materials from the near-by deposition area to the eroded beach using wind power energy without CO2 emission. A new Sand Bypass system using pipes with holes was developed and the field tests were conducted at the Northern Kanto area beach faced to the Pacific Ocean. Results of the tests showed that 100kW electric power supply was necessary in the system, and 300kW-typed offshore wind generator was recommended with the system. Estimated CO2 emission reduction rate was also discussed.

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