Journal
ENERGY
Volume 216, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2020.119213
Keywords
Phase change material (PCM); Rigid polyurethane (RPU); Insulation panels; Thermal conductivity; Thermal performance; Numerical simulations
Categories
Funding
- Portuguese Foundation for Science and Technology/MCTES [UIDB/50011/2020, UIDP/50011/2020]
- TEMA e Centre for Mechanical Technology and Automation - FCT - Fundacao para a Ciencia e a Tecnologia [UIDB/00481/2020, UIDP/00481/2020]
- Centro Portugal Regional Operational Programme (Centro2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund [CENTRO-01-0145-FEDER-022083]
- FCT/MEC [FCT/UID/ECI/04450/2013]
- University of Aveiro
- FCT [IF/01089/2015]
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By incorporating phase change materials (PCM) into rigid polyurethane (RPU) foams, the thermal regulation effect can be enhanced, with experimental results demonstrating a significant reduction in thermal amplitude for RPU panels containing PCM.
The potential thermal regulation effect of rigid polyurethane (RPU) foams can be enhanced by the incorporation of phase change materials (PCM). The main goal of the present work is to evaluate the thermal characteristics of RPU panels using two different types of PCM (a commercial one and another based on paraffin and calcium carbonate) and to quantify their potential as thermal regulators of indoor spaces. The experimental results obtained revealed that the RPU panels incorporating PCM can lead to a thermal amplitude reduction of about 3.5-1 degrees C (peak maximum temperature - peak minimum temperature). Furthermore, it was demonstrated that the performance of the RPU panel with PCM was enhanced when the external and internal mean temperature were closer to the melting peak temperature of the PCM. Additionally, it was also verified that the thermal amplitude reduction due to the PCM is more significant for the RPU panel incorporating PCM. In brief, the results showed that the efficiency of the RPU panels incorporating PCM is not exclusively dependent on the presence and quantity of PCM (equivalent in wt% in all cases) but it is also affected by the imposed temperature profile and the PCM thermal properties. (C) 2020 Elsevier Ltd. All rights reserved.
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