Sintered aluminium heat pipe (SAHP)

Ameli, Masoud, Agnew, Brian, Ng, Bobo, McGlen, R. J., Sutcliffe, C. J. and Singh, J. (2012) Sintered aluminium heat pipe (SAHP). In: 16th International Heat Pipe Conference (16th IHPC), 20-24 May 2012, Lyon, France.

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Abstract

This work is the product of an ongoing PhD project in the School of the Built and Natural Environment of Northumbria University in collaboration with the University of Liverpool and Thermacore Europe Ltd. The achievements at the end of the first year are summarized. The main objective of the project is to develop an aluminum ammonia heat pipe with a sintered wick structure. Currently available ammonia heat pipes mainly use extruded axially grooved aluminum tubes as a capillary wick. There have been a few attempts of employing porous steel or nickel wicks in steel tubes with ammonia as the working fluid (Bai, Lin et al. 2009)although it is a common practice in loop heat pipes but there is no report of aluminum-ammonia heat pipes porous aluminium wick structures. The main barrier is the difficulty of sintering aluminum powders to manufacture porous wicks. So far during this project promising sintered aluminum heat pipe samples have been manufactured using the Selective Laser Melting (SLM) technique with various wick characteristics. This SLM method has proven to be capable of manufacturing very complicated wick structures with different thickness, porosity, permeability and pore sizes in different regions of a heat pipe. In addition the entire heat pipe including the end cap, outer tube wall, wick and the fill tube can be generated in a single process.

Item Type: Conference or Workshop Item (Paper)
Subjects: H100 General Engineering
H200 Civil Engineering
Department: Faculties > Engineering and Environment > Architecture and Built Environment
Related URLs:
Depositing User: Ay Okpokam
Date Deposited: 07 Mar 2013 12:15
Last Modified: 09 May 2017 01:26
URI: http://nrl.northumbria.ac.uk/id/eprint/11358

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