An experimental investigation of thermal contact conductance of Hastelloy C-276 based on steady-state heat flux method

• Published in: International communications in heat and mass transfer 2013-02, Vol.41, p.63-67
• Main Authors: Zhu, Zhi, Zhang, Li-Wen, Wu, Qin-Ke, Gu, Sen-Dong
• Format: Article
• Language: English
• Subjects: Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Experimental investigation; Hastelloy C-276; Heat flux; Heat transfer; Mass transfer; Mathematical models; Optimization; Other topics in thermal properties of condensed matter; Physics; Rotor can; Shrink fit; Shrink fitting; SS302; Thermal conductivity; Thermal contact conductance; Thermal properties of condensed matter
• ISSN: 0735-1933; 1879-0178
• DOI: 10.1016/j.icheatmasstransfer.2012.11.007

In this study, measurements of the thermal contact conductance (TCC) at the interfaces of Hastelloy C-276/Hastelloy C-276 and Hastelloy C-276/SS302 test pairs were conducted by a self-developed experimental setup based on the steady-state heat flux method. The reliability of experimental setup and method was validated by the repeated measurement of the thermal contact conductance between Hastelloy C-276 and Hastelloy C-276. In addition, the effects of contact pressure and interfacial temperature on thermal contact conductance were also discussed. This study not only provides a necessary database for the accurate numerical simulation but also lays a foundation for the optimal design of the shrink fitting process of rotor can.