이산화탄소를 이용한 간접 냉장시스템의 실험적 연구
기관명 | NDSL |
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저널명 | 설비공학논문집 = Korean journal of air-conditioning and refrigeration engineering |
ISSN | 1229-6422, |
ISBN |
저자(한글) | 김윤섭,백원근,윤린 |
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저자(영문) | |
소속기관 | |
소속기관(영문) | |
출판인 | |
간행물 번호 | |
발행연도 | 2016-01-01 |
초록 | Experimental studies for an indirect R404A- $CO_2$ refrigeration system and a direct R404A refrigeration system were conducted. The configurations of the indirect R404A- $CO_2$ refrigeration system are a R404A refrigeration system as a top cycle and a circulating $CO_2$ system as a bottom cycle. The direct R404A system was modified from indirect R404A- $CO_2$ refrigeration system by removing circuit for $CO_2$ circulation. Various tests for both systems were conducted by changing load side brine temperature from 0 to 5 and $10^{ circ}C$ with cooling brine temperatures for R404A system at 15, 20, or $25^{ circ}C$ . The indirect R404A- $CO_2$ refrigeration system showed the highest COP when load side brine temperature was at $10^{ circ}C$ in the evaporator and at cooling brine temperature of $15^{ circ}C$ . The COP of 3.04 under that condition was the highest. This indirect R404A- $CO_2$ refrigeration system showed 9.02% higher COP than the direct R404A system that had increased pipeline length of 15 m, which simulated actual installation in a supermarket. |
원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO201616553237416 |
첨부파일 |
과학기술표준분류 | |
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ICT 기술분류 | |
DDC 분류 | |
주제어 (키워드) | 이산화탄소,냉장,간접 시스템,캐스케이드,Carbon dioxide,R404A,Refrigeration,Indirect system,Cascade |