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      Thermal performance comparison of recycled and clay roof tiles due heat radiation by digital holographic interferometry

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          Abstract

          Abstract It is through the recycling process that disposed waste materials could regain a new purpose on their use, take for instance the tetrapakTM packaging. This material consists of thermally joint layers of paper, aluminum, and polyethylene. Once recycled, the two latter materials form a new composite named poly-aluminum, which is employed to manufacture roof tiles that serve as environmental protection against solar radiation and rain. This work reports an optical nondestructive comparison study of the surface deformation in poly-aluminum and clay roof tiles exposed to heat radiation. The optical system, based on a sensitive out-of-plane interferometer configuration, records several image holograms from a controlled heat source that raises the temperature on the tile's surface. The retrieved optical phase renders the tiles surface's deformation at three different temperature values: 26, 36 and 46 degrees on a Celsius scale. The results show a greater deformation profile from the poly-aluminum tile compared with the classic clay tile. However, its thermal insulation properties are better than those of the clay roof tile.

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          Author and article information

          Journal
          rmf
          Revista mexicana de física
          Rev. mex. fis.
          Sociedad Mexicana de Física (México, DF, Mexico )
          0035-001X
          December 2019
          : 65
          : 6
          : 678-683
          Affiliations
          [1] León Guanajuato orgnameUniversidad Tecnológica de León Mexico
          [2] Aguascalientes orgnameCentro de Investigaciones en Óptica, A. C. México
          [3] León Guanajuato orgnameCentro de Investigaciones en Óptica, A. C. México asalvarez@ 123456utleon.edu.mx
          Article
          S0035-001X2019000600678 S0035-001X(19)06500600678
          10.31349/revmexfis.65.678
          f582294e-ad83-4521-b2f8-bf2328ecb80b

          This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

          History
          : 02 July 2019
          : 17 May 2019
          Page count
          Figures: 0, Tables: 0, Equations: 0, References: 22, Pages: 6
          Product

          SciELO Mexico

          Categories
          Research

          07.05.Pj,surface measurements,42.40.Kw,non-destructive testing,Holographic interferometry,thermal effects

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