메뉴 건너뛰기
소속 기관 / 학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
고객센터 ENG
주제분류

논문 기본 정보

저자정보
(국립한밭대학교) (국립한밭대학교) (국립한밭대학교)
저널정보
대한설비공학회 설비공학논문집 설비공학논문집 제37권 제5호
오류 신고하기

피인용 2

검색

    초록·키워드

    This study aimed to analyze the heating and cooling capacity and refrigerant charge variation according to the mixing ratio of R744 and R290 in a mobile heat pump system. Results showed that as the mass fraction of R290 increased, both heating and cooling capacity, as well as the coefficient of performance (COP), improved. In particular, performance differences were observed depending on the outdoor temperature. The maximum difference was 55.5% in cooling mode and 54.5% in heating mode. When applying an R-404A compressor for the present model, the COP did not exhibit a linear increase within the R290 mass fraction range of 0.4 to 0.6. Additionally, the refrigerant charge decreased linearly with an increasing R290 mass fraction, attributed to the differences in density and void fraction between R744 and R290. The maximum reduction for refrigerant charge was 52.0% in cooling mode and 56% in heating mode. This study confirms that the compressor can significantly impact the overall performance of the heat pump system, indicating that compressor selection is a critical factor in the design process of a mobile heat pump system utilizing an R290 and R744 mixture.

    최근 본 자료 전체보기

      UCI(KEPA) : I410-151-25-02-093016060