A novel composite for thermal energy storage from alumina hollow sphere/paraffin and alkali-activated slag

Sang, Guochen; Zhang, Yangkai; Zhao, Caiyun; Cui, Xiaoling; Cui, Hongzhi; Zhang, Lei; Zhu, Yiyun; Guo, Teng

doi:10.1016/j.ceramint.2021.02.169

Cited by 20 publications

(2 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, a scale of 1 to 9 was used for importance comparisons of pairwise factors (Table 3). The elements were compared to each other to obtain the judgment matrix A, as shown in Formula (19) [43]:…”

Section: Calculation Of the Weight Coefficientmentioning

confidence: 99%

“…Nevertheless, there are a few reports on AASCCIBs [11,19] which focus on the preparation and performance of the block. In other words, there are very few studies devoted to the structural optimization and application feasibility of AASCCIBs [19], especially those dedicated to the comprehensive optimization of mechanical and thermal performances and the exploration of the thermal insulation effect. Undoubtedly, the above limitations restrict the application and promotion of AASCCIBs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structural Optimization and Application Research of Alkali-Activated Slag Ceramsite Compound Insulation Block Based on Finite Element Method

et al. 2021

Self Cite

View full text Add to dashboard Cite

The research and application of new wall materials have been attracting increasing attention owing to the continuous promotion of sustainable development in the building industry. An alkali-activated slag ceramsite compound insulation block (AASCCIB) is used as the research object. Based on the finite element method, the effects of different numbers of hole rows and hole ratios on the thermal and mechanical performances of AASCCIBs are analyzed using ANSYS CFX. On this basis, the AASCCIB with the optimal comprehensive performance is determined by a multi-objective optimization analysis. Finally, the improvement effect of the AASCCIB wall on the indoor thermal environment relative to an ordinary block (OB) wall is quantitatively analyzed using ANSYS CFX. The results show that the von Mises equivalent stress and heat transfer coefficient of the AASCCIB decrease with the increase in the hole ratio when the hole shape and number of hole rows are constant. has the optimal comprehensive performance among six AASCCIBs, with the heat transfer coefficient and average von Mises equivalent stress of 0.446 W/(m2∙K) and 9.52 MPa, respectively. Compared with the indoor lowest and average temperatures of the building with the OB wall, those of the building with the AASCCIB wall increased by at least 1.39 and 0.82 °C on the winter solstice, respectively. The indoor temperature difference decreased by at least 0.83 °C. In addition, the indoor highest temperature, average temperature, and temperature difference decreased by at least 1.75, 0.79, and 1.89 °C on the summer solstice, respectively.

show abstract

Section: Calculation Of the Weight Coefficientmentioning

confidence: 99%