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논문 기본 정보

저자정보
(Hanbat National University) (Cape Coast Technical University) (Hanbat National University) (Korea University) (Korea University) (Korea University) (Hanbat National University)
저널정보
대한설비공학회 대한설비공학회 학술발표대회논문집 대한설비공학회 2020년도 하계학술발표대회 논문집
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    초록·키워드

    The simultaneous provision of cooling, heating and hot water in residential buildings has propelled the demand of cascade multi-functional heat pumps in recent times. There is however insufficient literature outlining the effect of temperature variations for cascade multi-functional heat pumps. The performance characteristics of water-to-water cascade multi-functional heat pump in heating-hot water mode was analyzed in this experimental study with emphasis on the variation of outdoor entering water temperature. Capacity of heating cycle increased greatly as outdoor entering water temperature increased. The hot water capacity also increased as OD EWT increased. Overall system COP increased up to 27.4% as OD EWT increased by 15℃.

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