Experimental Study on Heat Transfer Performance in Condensation Section of ThreePhase Flow Closed Gravity Heat Pipe
QI Guo-Peng, LIU Ze, JIANG Feng, LI Xiu-Lun
1. Institute of Biology and Environment Engineering, Tianjin Vocational Institute; 2. School of Chemical Engineering and Technology, Tianjin University
Abstract：
To expand the application fields of threephase flow heat transfer enhancing and fouling preventing technology, a three-phase flow closed gravity heat pipe was built to research the heat transfer performance. The effects of solid holdup, heating power, filling ratio on the heat transfer performance in condensation section were investigated. The results showed the three-phase flow closed gravity heat pipe could enhance heat transfer. The convective heat transfer coefficient in condensation section increases with increase in heating power, and decreases with increase in filling ratio. When the filling ratio is lower, the convective heat transfer coefficient in condensation increases as the solid holdup increases; but when filling ratio is higher, with the increase of solid holdup, the convective heat transfer coefficient decreases after the first increase, then increases again.
QI Guo-Peng, LIU Ze, JIANG Feng, LI Xiu-Lun.Experimental Study on Heat Transfer Performance in Condensation Section of ThreePhase Flow Closed Gravity Heat Pipe[J]. Chemcial Industry and Engineering, 2012,29(6): 56-61
2012, Vol. 29 
