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Appl. Sci. 2017, 7(12), 1253; https://doi.org/10.3390/app7121253

Non-Destructive Infrared Evaluation of Thermo-Physical Parameters in Bamboo Specimens

Department of Electronics and Computer Science, Pontificia Universidad Javeriana Cali, Cali 760031, Colombia
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Received: 1 November 2017 / Revised: 24 November 2017 / Accepted: 27 November 2017 / Published: 2 December 2017
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Abstract

The estimation of heat conduction properties has considerable importance in the characterization of bamboo with respect to its potential use as an alternative construction material. Even though traditional methods such as hot plates have successfully measured thermal parameters, like thermal diffusivity and conductivity in bamboo samples, it is still necessary to transform the cylindrical bamboo specimen into a piece with special geometry and size. This requirement makes this method impractical in applications where several bamboo specimens need to be measured in their original cylindrical shape. This paper presents the estimation of thermo-physical parameters k and ρ c p in Guadua angustifolia kunth (Guadua a.k.) bamboo through nonlinear least square optimization and infrared thermography. A sensitivity analysis was carried out to determine how the temperature on the bamboo surface is affected by changes in the convection coefficient h, thermal conductivity k, and volumetric heat capacity ρ c p . In spite of the nonlinearity and high correlation in the parameters of the inverse heat conduction problem (IHCP), the estimation of such parameters is robust and consistent with those reported in the literature. View Full-Text
Keywords: inverse heat conduction problem; infrared thermography; thermo-physical properties; heat transfer coefficient; Guadua a.k. inverse heat conduction problem; infrared thermography; thermo-physical properties; heat transfer coefficient; Guadua a.k.
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

  • Externally hosted supplementary file 1
    Link: https://github.com/hbenitez/FlorezBenitez2017Bamboo
    Description: Information here provided can be used to reproduce the results in the paper Non-destructive infrared evaluation of thermo-phisycal parameters in bamboo specimens.
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Ospina-Borras, J.E.; Benitez-Restrepo, H.D.; Florez-Ospina, J.F. Non-Destructive Infrared Evaluation of Thermo-Physical Parameters in Bamboo Specimens. Appl. Sci. 2017, 7, 1253.

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