Research of Convection Heat Transfer of CO2 at Supercritical Pressures in Microtubes
[1]YANG FengYe,LlU MinShan,LIU Tong,et al.Research of Convection Heat Transfer of CO2 at Supercritical Pressures in Microtubes[J].Journal of Zhengzhou University (Engineering Science),2014,35(02):96-99.[doi:10.3969/j.issn.1671-6833.2014.02.022]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
35卷
Number of periods:
2014 02
Page number:
96-99
Column:
Public date:
2014-04-30
- Title:
- Research of Convection Heat Transfer of CO2 at Supercritical Pressures in Microtubes
- Keywords:
- supereritical CO2; convection transfer; buoyancy
- CLC:
- -
- DOI:
- 10.3969/j.issn.1671-6833.2014.02.022
- Abstract:
- Conveetion heat transfer of supererilical pressure CO, in mierotubes (D =0.4 mm) were investiga-ted, the changes of physieal property of supereritieal CO, and the impaet of buoyaney on the heat transfer wereanalyzed, and eonvection correlations of supereritical CO, in mierotubes were fitted when considering buoyan.ey. The results showed that the impaet of physieal properties of carbon dioxide on the buoyaney was big, andthe physieal property of CO, changes very violently at the critical point , which caused larger decline of buoyan.cy, heat transer was strengthened. lt was also eoneluded that the heat transfer correlations of the supererilicaC0, were achieved, which can be used to prediet heat transfer performanee of supereritieal CO, in mierolubes.
- References:
- -
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