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dc.contributor.authorSun, Xiaoqin
dc.contributor.authorMedina, Mario A.
dc.contributor.authorZhang, Yuan
dc.identifier.citationSun X, Medina MA and Zhang Y (2019) Potential Thermal Enhancement of Lightweight Building Walls Derived From Using Phase Change Materials (PCMs). Front. Energy Res. 7:13. doi: 10.3389/fenrg.2019.00013en_US
dc.descriptionThis work is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.description.abstractThis paper presents results of the potential thermal enhancement in building walls derived from using phase change materials (PCMs). Typical North American construction, namely, frame walls outfitted with hydrated-salt-based PCM with a melting temperature of 29°C were evaluated in well-controlled test houses under full weather conditions. It was found that PCMs produced reductions in energy gains during summer. The reductions were assessed via total heat transfer and peak heat transfer. For a 10 percentage by weight (wt%) PCM concentration, the largest peak flux reduction of 31.25% was observed when the PCM was integrated within a north-facing wall. For a 20 wt% PCM concentration, the largest peak flux reduction was 25.54% when the PCM pipes was installed on an east-facing wall. Doubling the amount of PCM did not produce improvement on heat flux reduction except for the east-facing wall. The indoor wall surface temperature and temperature amplitude was reduced by 1.5 and 1.4°C, respectively. The maximum time lag for peak heat flux was observed on the north-facing wall, which was 1.5 h for a 10 wt% PCM concentration and 2.25 h for a 20 wt% PCM concentration, respectively. To achieve the maximum energy savings, it is recommended that the PCMs be installed within west-facing walls.en_US
dc.publisherFrontiers Mediaen_US
dc.rightsCopyright © 2019 Sun, Medina and Zhang.en_US
dc.subjectPhase change materials (PCMs)en_US
dc.subjectHeat transfer through building wallsen_US
dc.subjectEnergy management in buildingsen_US
dc.subjectEnhanced building enclosuresen_US
dc.subjectHeat flux reductionen_US
dc.titlePotential Thermal Enhancement of Lightweight Building Walls Derived From Using Phase Change Materials (PCMs)en_US
kusw.kuauthorMedina, Mario A.
kusw.kudepartmentCivil, Environmental & Architectural Engineeringen_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

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Copyright © 2019 Sun, Medina and Zhang.
Except where otherwise noted, this item's license is described as: Copyright © 2019 Sun, Medina and Zhang.