The wall temperature field on the condenser section of an AGHP (Axial Grooved Heat Pipe) is measured by infrared thermal imaging technology, and the temperature field information on condenser wall is obtained in the horizontal and vertical working conditions and different temperature conditions. In accordance with the temperature field, Combination of the interaction characteristics between vapor-liquid two-phase annular flow, and by calculating, the accuracy to predict the outcome on non-condensable gas region is verified. Based on the distance to evaporator outlet, the condenser of the AGHP is divided into four regions for analysis. The zone I is closest to evaporator outlet and zone IV is located at the end of condenser. There are different characteristics in 4 zones for the AGHP with different vacuum degree and working conditions. On the conditions of horizontal working status, for the high vacuum AGHP, steadily working region, small fluctuations region, large fluctuations region and temperature recovery region will appear in turn. However for the low vacuum one, the single temperature fluctuation region and a linear decline region come forth followed by the abnormal increase region and steadily working region. Recurring to the analysis of wall temperature information, the characteristics of two-phase vapor-liquid phase change heat transfer and capillary driven flow inner the AGHPs can be discerned qualitatively or semi-quantitatively and some of the laws, Such as vacuum degree, two-phase flow instability are conjectured. The research content in this paper will redound to understanding inner working mechanism for an AGHP or a small heat pipe, and at the same time, provide theory evidences for heat pipe testing in the service of mass production.
Skip Nav Destination
ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer
December 18–21, 2009
Shanghai, China
Conference Sponsors:
- Nanotechnology Institute
ISBN:
978-0-7918-4390-1
PROCEEDINGS PAPER
Thermal Image Analysis on the Axial Temperature Distribution of an AGHP (Axial Grooved Heat Pipe) Available to Purchase
Ling Cheng,
Ling Cheng
Jiangsu Academy of Safety Science & Technology, Nanjing, China
Search for other works by this author on:
Hanzhong Tao
Hanzhong Tao
Nanjing University of Technology, Nanjing, China
Search for other works by this author on:
Ling Cheng
Jiangsu Academy of Safety Science & Technology, Nanjing, China
Hanzhong Tao
Nanjing University of Technology, Nanjing, China
Paper No:
MNHMT2009-18105, pp. 395-403; 9 pages
Published Online:
October 26, 2010
Citation
Cheng, L, & Tao, H. "Thermal Image Analysis on the Axial Temperature Distribution of an AGHP (Axial Grooved Heat Pipe)." Proceedings of the ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 2. Shanghai, China. December 18–21, 2009. pp. 395-403. ASME. https://doi.org/10.1115/MNHMT2009-18105
Download citation file:
9
Views
Related Proceedings Papers
Related Articles
An Experimental Investigation of the Transient Characteristics on a Flat-Plate Heat Pipe During Startup and Shutdown Operations
J. Heat Transfer (August,2000)
Analytical Investigations of Rotating Disks With and Without Incorporating Rotating Heat Pipes
J. Eng. Gas Turbines Power (July,2004)
The Influence of the Thermal Conductivity on the Heat Transfer Performance in a Heat Sink
J. Electron. Packag (September,2002)
Related Chapters
Climate Control Isn't Natural
Hot Air Rises and Heat Sinks: Everything You Know about Cooling Electronics Is Wrong
Heat Pipes and Others
Thermal Management of Microelectronic Equipment, Second Edition
Numerical Simulation and Experiment for Structure Optimization of Small Gravity Heat Pipe Radiators
International Conference on Mechanical Engineering and Technology (ICMET-London 2011)