SET Proceedings 2978-4387 Caravel Press 10.65582/set.2010.044 2010.044 A numerical study of convective heat transfer of inner helix casing tube of supercritical carbon dioxide LvJing lvjing810@163.com YangDazhang HeZhebin HuangXiuzhi ZhangSongbo School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 24082010 9 978-1-995850-04-7 1 6 24 August 2010 © 2010 Copyright WSSET 2010

The helix tube is a new form of heat exchange unit for gas cooler of trans-critical carbon dioxide heat pump. The convective heat transfer of supercritical carbon dioxide in helix tube was investigated numerically. The distributions of temperature, velocity and Nusselt number were obtained. The results show that the distributions of temperature and velocity are complex, and the effects of variable physical properties of carbon dioxide and the construction of helix tube on flow and heat transfer were very significant. The results of the study are useful for the design of gas cooler of trans-critical carbon dioxide heat pump.

 numerical study convective heat transfer helix casing tube super-critical carbon dioxide 24 to 27 August 2010 9th International Conference on Sustainable Energy Technologies SET2010 9 Shanghai, China