인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
최근 본 자료 전체보기
UCI(KEPA) : I410-151-25-02-093016060