PRACTICAL STUDY ON COUPLED ANALYSIS OF THE PRIMARY AND THE SECONDARY WAVE-ENERGY-CONVERSION OF PW-OWC TYPE DEVICE
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- KIHARA Kazuyoshi
- エム・エム ブリッジ株式会社
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- MASUDA Kouichi
- 日本大学 理工学部 海洋建築学科
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- IKOMA Tomoki
- 日本大学 理工学部 海洋建築学科
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- HOSOKAWA Yasushi
- エム・エム ブリッジ株式会社
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- NAGATA Shuuichi
- 国立大学校法人佐賀大学 海洋エネルギーセンター
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- SHIMOSAKO Kenichiro
- 港湾空港技術研究所
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- OOSAWA Hiroki
- 国立研究開発法人海洋研究開発機構
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- SAKAMOTO Tatsuya
- 東亜建設工業株式会社 土木事業本部
Bibliographic Information
- Other Title
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- PW付加振動水柱型波力発電装置の一次,二次エネルギー変換連成解法について
Abstract
In this study, the wave-energy-converter of Oscillating-Water-Column type with Projecting-Wall (PW-OWC) is treated, on which an impulse-turbine is installed as a secondary energy converter from air-flow to electricity. When the primary conversion from wave motion to air-flow is improved by PW, as well as the secondary one from air-flow to electricity is refined by applying an impulse-turbine, then the optimum design is newly required of the total system consisting of the primary and the secondary conversion systems. The air-flow after the primary conversion is introduced in the air chamber to the entrance of turbine, where air-flow (Q) with pressure difference (ΔP), difference between the pressure at entrance and that at exit, makes the secondary conversion with rotating the turbine to generate electricity. Accordingly, Q and ΔP are the common parameters connecting the primary conversion system and the secondary one. A numerical model on hydraulics can provide Q and ΔP for an assigning incident wave. The characteristics of the impulse turbine is obtained under the constant flow condition and found independent from its size for the certain range of Q and ΔP. For the coupled analysis of the total system, a graphical method is tried. On the same Q vs P chart, both the hydraulic characteristic curve and the turbine curve can be drawn. The intersection point gives the possible combination of Q and ΔP, which satisfies the primary and the secondary systems at the same time. After the verification by the prototype field experiment, this method can be found useful as a practical design tool for PW-OWC.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 72 (2), I_802-I_807, 2016
Japan Society of Civil Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390001205352776192
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- NII Article ID
- 130005263298
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- ISSN
- 21854688
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed