Thermal Characterization of Pinus radiata Wood Vacuum-Impregnated with Octadecane

Rodrigo Fuentes-Sepúlveda, Claudio García-Herrera, Diego A. Vasco, Carlos Salinas-Lira and Rubén A. Ananías
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Rodrigo Fuentes-Sepúlveda: Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile, Avda. Lib. Bdo. O’Higgins 3363, 9170002 Santiago, Chile
Claudio García-Herrera: Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile, Avda. Lib. Bdo. O’Higgins 3363, 9170002 Santiago, Chile
Diego A. Vasco: Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile, Avda. Lib. Bdo. O’Higgins 3363, 9170002 Santiago, Chile
Carlos Salinas-Lira: Departamento de Ingeniería Mecánica, Universidad del Bío-Bío, Avda. Collao 1202, Casilla 5-C, 4030000 Concepción, Chile
Rubén A. Ananías: Departamento de Ingeniería en Maderas, Universidad del Bío-Bío, Avda. Collao 1202, Casilla 5-C, 4030000 Concepción, Chile

Energies, 2020, vol. 13, issue 4, 1-16

Abstract: The incorporation of phase change materials (PCM) in construction components has become an alternative to reduce the effect of thermal loads in buildings with low thermal inertia. This study put together the effective heat storage capacity of an organic phase change material (O-PCM, octadecane) with the construction and production potential of Pinus radiata in Chile. The wood is impregnated with octadecane by using the Bethell method, showing that it has good retention of the impregnator, and that its size was not modified. Differential scanning calorimetry analysis (DSC) showed that the composite material could achieve fusion enthalpy values from 36 (20.8 MJ/m 3 ) to 122 J/g (108.9 MJ/m 3 ). The transient line heat source method used, indicated that impregnation of Pinus radiata with octadecane increases its specific heat at temperatures from 15 to 20 °C, while its thermal conductivity decreases in the radial and the tangent directions, and increases in the longitudinal direction, showing a decrease in the orthotropic behavior of the wood. The ability of Pinus radiata wood to store latent heat positioned it as a candidate material to be considered in the building industry as a heat storage system.

Keywords: Pinus radiata; impregnation; octadecane; thermal properties (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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