成果報告書詳細
管理番号20140000000833
タイトル*平成25年度中間年報 太陽光発電多用途化実証プロジェクト 太陽光発電多用途化実証事業 傾斜地における太陽光発電設置のための小径鋼管杭工法の開発および実証
公開日2015/5/1
報告書年度2013 - 2013
委託先名奥地建産株式会社
プロジェクト番号P13008
部署名新エネルギー部
和文要約
英文要約Title : Verification Project for Diversified Applications Solar Power Plant/ Development and Verification of Small-Diameter Steel Piping Pile Method Utilized in Solar Power Plant System Installations on Sloping Land” (FY2013-FY2015) FY2013 Annual Report

If large-scale deployment of solar power plant systems in Japan is desired, it becomes important to expand the scope of installation sites and applications, in addition to reducing power plant costs that constitute the primary challenge in solar power plant. And so our business objectives are to develop technologies (for increasing power output, reducing installation costs, etc.) that would encourage installations in yet-to-be-deployed sites of solar power plant with power generation costs comparable to more popular sites, and to verify technological effectiveness. This annual report showed developing technology for applying a small-diameter steel pipe pile method for installing solar power plant systems on diverse, complex shaped sloping land and rugged terrain. This method was originally developed by Okuji Kensan as a simple solar system installation method for flat areas. To verify technology effectiveness and confirm results, the business will also cover the construction and installation of a 50kW solar system on mountainous slopes at Iwaki Meisei University in Fukushima using this method. The specifics of the implementation of the first test site for the frame design development of the solar power plant on sloping land are as follows: Establishing a subsurface investigation method, Verification of small-diameter steel pipe pile driving accuracy, Small-diameter steel pipe pile construction error absorption verification, Lightweight unit rack design and Wind tunnel test for determining design wind force coefficients on sloping land. Not only design development of frame of solar power plant on sloping land but also development of anti-corrosion technology for small-diameter steel pipe piles is important for the achievement of our purpose. To investigate the corrosion mechanism on soil-contacting surfaces, experimental data will be collected and analyzed regarding corrosion speed, degree of corrosion, factors causing corrosion, etc. After this process, sensors and equipment will be readied and pretesting for data analysis will commence. Pretest implementation specifics for modeling macrocell corrosion on soil-contact surfaces and preliminary corrosion testing are as follows: Relationship test between capillary water and soil quality (volume water content), Macro-potential measurement using a 2-piece specimen contact, Macro-potential measurement using a 6-piece specimen and Development of a condensation sensor to discover corrosion mechanism on soil-contacting surface. During the relevant fiscal year there were no Research presentations/lectures (including oral presentations) and award activities. One patent will be applied for based on the activities described above. Exhibiting at PVEXPO 2014 in Tokyo and advertising in The Nikkei has helped to promote the Project.
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