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Author:

Xiong, Yaxuan (Xiong, Yaxuan.) | Wu, Yuting (Wu, Yuting.) (Scholars:吴玉庭) | Ren, Jing (Ren, Jing.) | Li, Xiang (Li, Xiang.) | Yao, Chenhua (Yao, Chenhua.) | Zhao, Yanqi (Zhao, Yanqi.) | Xu, Qian (Xu, Qian.) | Ding, Yulong (Ding, Yulong.)

Indexed by:

EI Scopus SCIE

Abstract:

To enhance the efficiency and cost-effectiveness of heating, air-conditioning, and solid waste recycling in buildings, this work proposed the solid waste semi-coke ash as skeleton material and the sodium carbonate as phase-change material to produce shape-stable phase-change composites using the cold compression-hot sintering method for building thermal energy storage. Eight shape-stable phase-change composites were prepared and the detailed chemical compatibility, thermal property, structural and mechanical performance, and micromorphology were investigated by X-ray diffraction, differential scanning calorimetry, laser flash analysis, N2 adsorption and desorption method, constant speed pressurization method, and scanning electron microscopy. Results demonstrated that semi-coke ash is suitable with sodium carbonate for fabricating shape-stable phasechange composites. The optimal mass ratio of semi-coke ash to Na2CO3 powder for sample CC3 was determined to be 52.5:47.5. This particular sample demonstrated a thermal energy storage density of 961.58 J/g and a maximum thermal conductivity of 1.306 W/(m center dot K). It also exhibited excellent chemical compatibility between its components. Furthermore, sample CC3 displayed a mechanical strength of 23.57 MPa, with elements evenly distributed throughout. Importantly, CO2 emission from the production of sample CC3 was significantly low, indicating great potential for commercialization.

Keyword:

Sodium carbonate Skeleton material Thermal energy storage Industrial solid waste Carbon emission

Author Community:

  • [ 1 ] [Xiong, Yaxuan]Beijing Univ Civil Engn & Architecture, Beijing Key Lab Heating Gas Supply Ventilating & A, Beijing 100044, Peoples R China
  • [ 2 ] [Li, Xiang]Beijing Univ Civil Engn & Architecture, Beijing Key Lab Heating Gas Supply Ventilating & A, Beijing 100044, Peoples R China
  • [ 3 ] [Yao, Chenhua]Beijing Univ Civil Engn & Architecture, Beijing Key Lab Heating Gas Supply Ventilating & A, Beijing 100044, Peoples R China
  • [ 4 ] [Wu, Yuting]Beijing Univ Technol, Coll Environm & Energy Engn, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Ren, Jing]Beijing Bldg Res Inst Co Ltd CSCEC, Beijing 100076, Peoples R China
  • [ 6 ] [Zhao, Yanqi]Jiangsu Univ, Sch Mech Engn & Inst Intelligent Flexible Mechatro, Sch Mech Engn, Zhenjiang 212013, Peoples R China
  • [ 7 ] [Xu, Qian]Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China
  • [ 8 ] [Ding, Yulong]Univ Birmingham, Birmingham Ctr Energy Storage, Birmingham B15 2TT, England

Reprint Author's Address:

  • [Xiong, Yaxuan]Beijing Univ Civil Engn & Architecture, Beijing Key Lab Heating Gas Supply Ventilating & A, Beijing 100044, Peoples R China;;[Wu, Yuting]Beijing Univ Technol, Coll Environm & Energy Engn, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ, Beijing 100124, Peoples R China;;[Xu, Qian]Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China;;

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Source :

SOLAR ENERGY MATERIALS AND SOLAR CELLS

ISSN: 0927-0248

Year: 2024

Volume: 270

6 . 9 0 0

JCR@2022

Cited Count:

WoS CC Cited Count: 4

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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