成果報告書詳細
管理番号20120000000378
タイトル*平成23年度中間年報 次世代型ヒートポンプシステム開発/デシカント・蒸気圧縮式ハイブリッド型ノンフロストヒートポンプの研究開発
公開日2012/6/1
報告書年度2011 - 2011
委託先名国立大学法人東京大学 東京電力株式会社 新日本空調株式会社
プロジェクト番号P10011
部署名省エネルギー部
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 本研究開発では、吸着剤メソポーラスシリカを使用したデシカントサイクルと蒸気圧縮式冷凍サイクルのハイブリッドシステムにより、冬季におけるノンフロスト運転、夏季におけるノンドレイン運転を可能とするノンフロストヒートポンプを開発する。平成23年度の取組状況を表1に示す。研究項目と平成23年度の目標と取組・成果と当初目標との差異を示す
英文要約Title:Research and Development of a Next-generation Heat Pump System. Research and development of frost-free vapor-compression heat pump systems hybridized with desiccant material (FY2010-FY2012) FY2011 Annual Report

The objectives of this project were to make prototypes of two different types of frost-free vapor-compression heat pump systems hybridized with desiccant material used as water heater and air conditioner and to evaluate their energy efficiency. To achieve these objectives, the research topics have been categorized into the following four classes: (A) Research and development of desiccant materials, (B) Design of energy-saving systems, (C) Research and development of hybrid heat pump systems, and (D) Operation test & evaluation and marketing research for product commercialization. Research results in FY 2011 are as follows. (A) The water adsorption-desorption isotherms of TMPS (Taiyo Kagaku mesoporous silicas) 4a powder and the powder-coated paper containing polymer binder were measured at 266 K. Both the powder and powder-coated paper can adsorb water vapor without freezing even if the temperature is below 273 K. Thus, the powder-coated paper is potentially applicable in frost-free heat pumps system, but the adsorption properties deteriorate. Furthermore, a desiccant module was fabricated with the powder-coated paper and the adsorption properties were evaluated by measuring the time courses of the adsorbed water mass and the humidity of outlet air. The result showed that the time constant (relaxation time to achieve the saturation condition) was 2 min for summer weather conditions. The design and optimization of desiccant modules is an ongoing work. (B) The software to design the energy-saving systems of water heaters and air conditioners was developed. The prototypes were designed and made using the software. (C) The components of hybrid heat pump systems were designed and developed. (D) The energy saving effect of the proposed systems was calculated by the analysis of energy consumption in the commercial sector. The feasibility of the system was confirmed by interviewing house constructors and heat pump manufacturers in Tohoku district. Furthermore, the test facility for water-heater systems was constructed in Kashiwa Campus, the University of Tokyo and a commercial product was placed and tested.
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