Study on the influence of thermo-physical parameters of phase change material panel on the indoor thermal environment of passive solar buildings in Tibet

Zhang, Yangkai; Sang, Guochen; Li, Pan; Du, Mengjie; Guo, Teng; Cui, Xiaoling; Zhang, Lei; Han, Weixiao

doi:10.1016/j.est.2022.105019

Cited by 18 publications

(1 citation statement)

References 26 publications

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“…And the integration of PCM can contribute to 15% of energy conservation to maintain the comfort range. Zhang et al [26] analyzed the effects of different thermophysical parameters on the indoor thermal environment of a passive solar building with PCM panels in Tibet. The optimal design parameters on enhanced building thermal performance were obtained by numerical simulation that presented a phase transition temperature of 18 °C and thickness of 30 mm on the inner surface of the composite wall, respectively.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance and Energy Analysis of Phase Change Material-Integrated Building with the Auxiliary Heating System in Different Climate Regions

Guo

Sang

Zhang

et al. 2023

International Journal of Energy Research

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Phase change material (PCM) embedded in the building contributes to enhancing indoor thermal comfort and reducing the heating load in winter by absorbing/releasing solar energy. The application effects of PCM incorporated into a single-space passive solar building with the auxiliary heating system (AHS) were investigated numerically in the six representative regions of western China. In the calculation and analysis by the enthalpy model, it was found that the effectiveness of PCM greatly depended on local climate conditions, thickness, and location of PCM. The results indicated that it was necessary to adopt the AHS for winter heating of the passive solar building. On this basis of using AHS, it showed a favorable thermal energy storage effect after the application of PCM resulting in the minimum indoor air temperature being maintained above 15°C within the comfort range stably. The integrated discomfort degree in each region was decreased by more than 96% compared to the original building, and the average temperature in Lhasa was 2°C higher than that in Urumqi. Furthermore, the highest rate of energy saving and carbon dioxide emission saving in the six regions was 19.7% and 17.4% in Lhasa, and the lowest were 4.3% and 4.2% in Urumqi, while other regions were relatively close, respectively. As a result, it can be stated that for a passive solar building using the AHS during the heating period, PCM was the most suitable for application in Lhasa, unsuitable in Urumqi, and generally suitable in other regions.

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Section: Introductionmentioning

confidence: 99%