Modeling and simulation on the thermal performance of shape-stabilized phase change material floor used in passive solar buildings |
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| Affiliation: | 1. Department of Building Science, Tsinghua University, Beijing 100084, PR China;2. Department of Chemical Engineering, Tsinghua University, Beijing 100084, PR China;1. Laboratoire des Systèmes Complexes, Université Denis Diderot, France;2. Pole Ingénierie Matériaux, Bouygues, 78114 Magny les Hameaux, France;3. Laboratoire Interdisciplinaire des Energies de Demain, Université Denis Diderot, France;1. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China;2. Technical Center of China State Construction Engineering Corporation, Beijing 100037, China;1. Civil, Environmental & Architectural Engineering Department, The University of Kansas, Lawrence, KS 66045, USA;2. DLR Group, Chicago, IL 60606, USA;3. School of Energy and Power Engineering, Changsha University of Science & Technology, Changsha, Hunan 410004, PR China;1. Cerema, Regional Laboratory of Strasbourg, France;2. University of Lyon, CETHIL, UMR 5008, INSA Lyon, University Lyon 1, France;3. ENTPE, University of Lyon, LGCB, France;1. School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China;2. Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400030, China |
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| Abstract: | Shape-stabilized phase change material (PCM) is a kind of novel PCM. It has the following salient features: large apparent specific heat for phase change temperature region, suitable thermal conductivity, no container. In the present paper, a kind of shape-stabilized PCM floor is put forward which can absorb the solar radiation energy in the daytime and release the heat at night in winter. Therefore, in winter the indoor climate can be improved and the energy consumption for space heating may be greatly reduced. A model of analyzing the thermal performance of this shape-stabilized PCM floor is developed. By using the modeling, the influence of various factors (thickness of PCM layer, melting temperature, heat of fusion, thermal conductivity of PCM, etc.) on the room thermal performance was analyzed. The model was verified by the experimental results. The model and the analysis are helpful for the application of shape-stabilized PCM floor in solar buildings. |
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