A study on Darrieus-type hydroturbine toward utilization of extra-low head natural flow streams

Kei Tanaka, Kotaro Hirowatari, Kai Shimokawa, Satoshi Watanabe, Daisuke Matsushita, Akinori Furukawa

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A two-dimensional Darrieus-type hydroturbine system, installed with a wear for flow streams such as small rivers and waterways, has been developed for hydropower utilization of extra-low head less than 2m. There are several problems such as flow rate change and flowing wastes to be solved for its practical use in natural flow streams. In the present study, at first, a design guideline in the case of overflow or bypass flow is shown by using simple flow model. Next, in order to avoid the unexpected obstacles flowing into the hydroturbine, an installation of waste screening system is examined. It is confirmed that the screen is effective with some amount of bypass flow rate, however the output power is remarkably deteriorated.

Original languageEnglish
Pages (from-to)152-159
Number of pages8
JournalInternational Journal of Fluid Machinery and Systems
Volume6
Issue number3
DOIs
Publication statusPublished - Oct 4 2013

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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