Wood impregnated with multicomponent bio-based PCM for low temperature energy storage in buildings
Nazari, Meysam; Jebrane, Mohamed; Terziev, NaskoAbstract
Wood is widely used in buildings but its low thermal mass limits its energy efficiency for internal use. The thermal mass of wood can be improved by incorporation of PCMs into its porous structure, and thus can control energy intermittency inside buildings. In this study, coconut oil fatty acids mixed with linoleic acid in 4:1 (w/w), with a phase transition temperature in the range of human comfort (18-25 ºC), were integrated into thermally treated spruce. The impregnation uptake was 60% and the stability of the PCM in wood structure was evaluated by subjecting impregnated wood samples to leaching tests, and found to be 5%. Thermal characteristics of the wood/BPCM composite including phase transition temperature, enthalpy, heat capacity and thermal conductivity were investigated with DSC, T-history and heat flow meter method, and respectively found to be in the range of 22.4-25.5 °C, 39 J/g, 4 J/(g K) and 0.13 W/(m K).
Keywords
Thermally treated wood; Bio-based PCM; Air conditioning; Energy EfficiencyPublished in
Refrigeration science and technology2021, number: 13
Book title: 13rd IIR conference on phase-change materials and slurries for refrigeration and air conditioning : proceedings
ISBN: 978-3-36215-049-4
Publisher: International Institute of Refrigeration
Conference
13th IIR conference on phase-change materials and slurries for refrigeration and air-conditioning, 210901-210903, Vicenza, Italy
Authors' information
UKÄ Subject classification
Energy Engineering
Wood Science
Publication Identifiers
DOI: https://doi.org/10.18462/iir.PCM.2021.2074
URI (permanent link to this page)
https://res.slu.se/id/publ/114503