메뉴 건너뛰기
.. 내서재 .. 알림
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)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국박용기관학회지 제28권 1호
발행연도
2004.1
수록면
29 - 38 (10page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

초록· 키워드

오류제보하기
The Condensation heat transfer coefficients of R-22 and R-134a were measured in smooth horizontal copper tubes with inner diameters of 1.77, 3.36 and 5.35 mm, respectively. The experiments were conducted in a closed loop, which was driven by a magnetic gear pump. They were performed for the following ranges of variables: mass flux (200 to 500 kg/m²·s), saturation temperature 30℃ and quality(0 to 1.0).
The main results obtained are as follows: Condensation heat transfer coefficients in the small diameter tubes (ID<7 mm) were observed to be strongly affected by inner diameter change and to differ from those in the large diameter tubes. The heat transfer coefficients in the small diameter tubes were 20~40% higher than those in the large diameter tubes as the inner diameter of the tube was reduced. Also, it was very difficult to apply some well-known previous predictions (Cavallini-Zecchin's, Haraguchi's and Dobson's correlation) to small diameter tubes. Based on an analogy between heat and mass transfer, the new correlation is proposed to predict the experimental data more accurately.

목차

Abstract

기호설명

1. 서론

2. 실험장치

3. 실험결과 및 고찰

4. 결론

참고문헌

참고문헌 (19)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2009-559-013743034