충돌분류계에서 사다리형로드에 의한 열전달증진 효과 = Heat Transfer Enhancement by Trapezoid Rods in Impinging Jet System

다국어 초록 (Multilingual Abstract)

?The objective of the study was to investigate the characteristics of heat transfer and flow in 2-dimensional impinging air jet system, in which trapezoid rods have been set up in front of impinging plate in order to increase heat transfer. Experiments were carried out first using without the rods to establish the baseline heat transfer performance. And this result compared with the experimentation with rods. When rods are installed in front of the impinging plate, the acceleration of the flow and the eddies due to the rods seem to contribute to the heat transfer enhancement. Heat transfer performance was best under the condition of C=1 mm and as the pitch is 30 mm. In this case, maximum rate of heat transfer augmentation is about 1.62 times greater compared to that without trapezoid rods

참고문헌 (Reference)

1 김동춘, "충돌분류계에서의 하이브리드 로드에 의한 열전달증진에 관한 연구" 2000

2 Lee, J.H, "The Effect of Nozzle Aspect Ratio on Stagnation Legion Heat Transfer Characteristics of Elliptic Impinging Jet" 2000

3 Gau, C, "Flow and Impingement Cooling Heat Transfer Along Triangular Rin-roughened Walls" 2000

4 Kum, S.M, "A Study on Heat Transfer Enhancement by a Square-Rod Array in an Impinging Jet System" 24 (24): 193-, 1995

5 최두섭, "?충돌공기분류계에???전열촉진기술에 관한 연구? 태양에너지학회논문집" 1993

6 Goldstein, "?Visualization of Heat Transfer from Arrays of Impinging Jet? Int. J. Heat Mass Transfer" 18571982

7 Gau, "?Surface Curvature Effect on Slot-Air-Jet Impingement Cooling Flow and Heat Transfer Process? ASME J. Heat Transfer" 1991