成果報告書詳細
管理番号20100000001209
タイトル*平成21年度中間年報 グリーンネットワーク・システム技術研究開発プロジェクト(グリーンITプロジェクト)/ エネルギー利用最適化データセンタ基盤技術の研究開発 / サーバの最適構成とクラウド・コンピューティング環境における進化するアーキテクチャーの開発 / 将来の進化を想定した低消費電力アーキテクチャーの開発
公開日2010/9/9
報告書年度2009 - 2009
委託先名日本電気株式会社
プロジェクト番号P08017
部署名省エネルギー技術開発部
和文要約和文要約等以下本編抜粋:1. 研究開発の内容及び成果等 (1)筐体内高密度・大容量接続を適用した省電力筐体のアーキテクチャーの検討 筐体の冷却に関わる消費電力を従来の筐体に比べて30%削減できる筐体のアーキテクチャーを見いだすため、ブレード型筐体をモデルに、廃熱用スペースの配置、大きさ、吸気口の配置、大きさ、冷却ファンの配置、能力、LSI等熱源の配置をパラメータとして、筐体内の空気の流れ解析を行った。具体的には、熱流体解析ソフト上に、上記パラメータを変化させた様々な筐体モデルの構築を行った。さらに、構築した筐体モデルを用いて初期流れ解析を行い、上記パラメータに依存して廃熱特性が変化する等の基礎データを取得した。
英文要約Title: Research and Development Projects for Green Network Systems/Research and Development for Data Center Platform Technologies to Optimize Power Consumptions/Development for Optimizations of Server Constructions and Evolving Architectures on Cloud Computing/Development for Low Power Consumption on Evolving Architectures (FY2009-FY2012) FY2009 Annual Report
1. Investigation for Architectures on Low Power Consumption Shelves Applying High Density and High Capacity Connection: For investigating architectures which lowered the power consumption for cooling shelves, we constructed various types of shelf models on the thermo-fluid analysis software. Using those models, we preliminary performed the flow analysis. 2. Development for High Density and High Capacity Connection in a Shelf: 2-1. Investigation for On-board high density interconnection: We prepared the samples of waveguides, made of three different epoxy and norbornen-based materials owing different refractive indexes. By evaluating the insertion loss for those samples, we experimentally verified that loss at the curvature was improved when a clothoid curve was used at the curvature of the waveguides. 2-2 Development for Connection Technology between Boards and Shelves: We investigated the structure of the optical connection for improving the insertion loss between on-board polymer waveguides and optical fibers for board connections. In addition, we constructed the connection models using simulation software for optical waveguide analysis and optical propagation analysis for numerically analyzing optimal conditions for the structure of the optical connection by changing the parameters for fibers and polymer waveguides such as materials, shapes, core diameters, and distance between connections. 2-3 Development for High Efficient Connection Technology between Boards and Transceivers: For realizing high efficient optical connection between on-board polymer waveguides and optical transceivers, we made a study on the structures of optical connections, such as direct mountings, connections with lens, optical vias, grating couplers. Investigating and comparing properties of those structures we designed an outline of the structure of connections.
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