29권 2호 119-125 2021 [한국자동차공학회 논문집 ]
| 제목 | 열다공성 모델을 이용한 컴팩트 열교환기 성능 예측 |
|---|---|
| 분야 | 열유체 및 공조시스템(HVAC) |
| 언어 | Korean |
| 저자 | 김택근(한국기술교육대학교), 송성훈(한온시스템) |
| Key Words | Compact heat exchanger(컴팩트 열교환기), Offset strip fin(오프셋 스트립 휜), Porous medium approach(다공성 매질 접근법), Friction correlation(마찰 상관식), Dimensionless heat transfer correlation(무차원 열전달 상관식), Computational fluid dynamics(전산 유체 역학) |
| 초록 |
The thermal porous medium model for 30 percent offset rate for mass production was constructed in order to conduct a CFD analysis of the air-cooled air-charged intercooler, which is a type of compact heat exchanger. This CFD model has features assumed by the charged air side offset fin and cooling air side louvered fin as the porous medium model. The air-cooled air-charged intercooler pressure drop and heat transfer performance obtained from the correlations with the existing 50 percent offset rate were compared with the pressure drop and heat transfer performance obtained from the 30 percent offset rate correlation presented in this study. The correlation between Fanning f factor and Colburn j factor with 30 percent offset fins is presented. For the offset strip fins for mass production, it was found that the Fanning f factor and Colburn j factor of 30 percent offset fins presented in this study predicted the performance of the air-cooled air-charged intercooler better than the correlation of the conventional 50 percent offset rate. |
| 원문(PDF) | 다운로드 Journal Site |