0420 水熱交換器によるCO_2ヒートポンプ給湯機の省エネルギー化(S46-2 高効率ヒートポンプの要素技術とその応用(2),S46 高効率ヒートポンプの要素技術とその応用)
スポンサーリンク
概要
- 論文の詳細を見る
In a heat exchanger for CO_2 heat-pump water heaters, heat transfer enhancement, especially in water-side, is required to develop a high performance system. A tube with inner dimple, which called "Smart Dimple tube (SD tube)", has been developed to increase a heat transfer coefficient without increasing a friction factor. The SD tube was applied to a new water-CO_2 heat exchanger, and contributed greatly to the improvement of COP of the heat pump unit. In this paper, the technology for high efficiency CO_2 heat pump water heater by development of the water-CO_2 heat exchanger was described.
- 一般社団法人日本機械学会の論文
- 2007-09-07