Skip to Main content Skip to Navigation
Journal articles

IR thermography measurement of convective coefficients in a pipe with periodic excitation

Abstract : A new methodology has been developed in order to measure heat transfer coefficients without requiring knowledge of fluid properties. This methodology is based on periodic excitation by Joule effect and infrared (IR) thermography measurement. It has been applied to measure heat transfer coefficients in the case of water flowing in a cylindrical copper tube. An analytical model has been developed to deduce heat transfer coefficients from the outside tube temperature amplitude and heat flux measurement. The Reynolds number ranges investigated are from 2000 to 14 000, with a heat flux varying from 1000 W m(-2) to 5000 W m(-2). The results obtained show good agreement with those obtained with a reference correlation in the literature, demonstrating the reliability of the methodology. This method can be applied to measure the heat transfer coefficients of complex shaped systems. The advantages of the method are the low heat flux required and its non-invasive nature.
Document type :
Journal articles
Complete list of metadata

https://hal.inrae.fr/hal-02599886
Contributor : Migration Irstea Publications <>
Submitted on : Thursday, October 8, 2020 - 4:42:09 PM
Last modification on : Monday, May 17, 2021 - 2:52:17 PM

File

Leblay2013.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

P. Leblay, J.-F. Henry, D. Caron, Denis Leducq, Aurore Bontemps, et al.. IR thermography measurement of convective coefficients in a pipe with periodic excitation. International Journal of Thermal Sciences, Elsevier, 2013, 74, pp.183-189. ⟨10.1016/j.ijthermalsci.2013.06.011⟩. ⟨hal-02599886⟩

Share

Metrics

Record views

69

Files downloads

43