| Title |
Experimental Studies on Heat Transfer in the Annuli with Corrugated Tubes |
| Keywords |
Heat transfer coefficient ; 열전달계수 ; Pressure drop ; 압력강하 ; Spirally corrugated tubes ; 나선 파형관 ; Flow mechanism ; 유동기구 ; Heat transfer enhancement ; 열전달촉진 |
| Abstract |
This paper is to present the results of a comprehensive study on heat transfer in annuli with spirally corrugated inner tubes in the turbulent regime. Tube surface-temperature measurements were used to explain the enhancement phenomena in the annuli with several different corrugated tubes. Nusselt numbers were between 1.1 and 2 times the smooth annulus values. These enhancement values can be used to determine the appropriate range of applicability for spirally corrugated annuli. |