외부온도 노출에 대한 PCM 축냉 덕트의 성능 특성에 대한 해석적 연구

• 영문명: Performance Characteristics of Phase-Change Material Cold-Storage Duct Exposed to Outside Temperature
• 발행기관: 한국산업기술융합학회(구. 산업기술교육훈련학회)
• 저자명: 김태중(Tae-Jung Kim) 홍성인(Sung-In Hong)
• 간행물 정보: 『산업기술연구논문지』산업기술연구논문지 제25권 3호, 59~65쪽, 전체 7쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2020.09.30

영문 초록

Recently, side-by-side refrigerators are becoming commercialized because of their left and right compartments. In addition, refrigerators and freezers are becoming commercialized because they can be opened from the top and bottom. However, when a power failure occurs or the set temperature is reached, a refrigerator is not supplied with power. At this time, when the refrigerator is used, the food becomes stale owing to the high external temperature. Hence, a phase-change material (PCM) cold-storage duct needs to be utilized in a refrigerator to prevent this situation. In this study, temperature variations of a PCM cold-storage duct were analyzed when refrigeration inside was exposed to the outdoor temperature. The PCM cold-storage duct was exposed to 25 °C for 60 min. The PCM cold-storage temperature changed from 1.5 to 4.8 °C at the top and bottom, respectively, and -14.7 to -8.2 °C at the left and right sides, respectively. Additionally, the cooling air in the PCM cold-storage duct started to coagulate from the upper side having a large heat-exchange area and solidified from the side to the center with the coagulation nucleus.

목차

Ⅰ. 서 론

Ⅱ. 모델링 및 해석 조건

Ⅲ. 해석 결과 및 고찰

Ⅳ. 결 론

참고문헌

키워드

상변화 물질 응고 축냉 덕트 외부 온도 냉장고 Phase Change Material Coagulation Cold Storage Outside Temperature Refrigerator