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Author:

Yao, Haichen (Yao, Haichen.) | Liu, Xianglei (Liu, Xianglei.) | Luo, Qingyang (Luo, Qingyang.) | Xu, Qiao (Xu, Qiao.) | Tian, Yang (Tian, Yang.) | Ren, Tianze (Ren, Tianze.) | Zheng, Hangbin (Zheng, Hangbin.) | Gao, Ke (Gao, Ke.) | Dang, Chunzhuo (Dang, Chunzhuo.) | Xuan, Yimin (Xuan, Yimin.) | Liu, Zhan (Liu, Zhan.) | Yang, Xiaohu (Yang, Xiaohu.) | Ding, Yulong (Ding, Yulong.)

Indexed by:

EI SCIE Scopus Engineering Village

Abstract:

Volumetric-absorption-based solar charging via phase change processes is an emerging technology to harvest solar energy, however, how pore-scale radiation transport interacts with latent heat thermal energy storage processes is still vague. In this paper, volumetric-absorption-based solar charging processes at pore scale are investigated by experiments and numerical simulations based on Monte Carlo ray tracing coupled with the Finite Volume Method. The solar radiation transport, temperature distribution, liquid fraction, and solar thermal energy storage efficiency are systematically evaluated under different radiation intensities and skeleton thermal conductivities. Compared to the traditional surface-absorption-based mode, solar thermal energy storage efficiency of the volumetric-absorption mode is enhanced by 94% due to presence of multi-region heat sources. The solar thermal energy storage efficiency reaches a peak value of 54.09% at a radiation intensity of 10 kW·m−2. That is because low radiation intensities increase the melting time while too high intensities lead to large temperature nonuniformity, leading to high heat losses for both scenarios. Increasing the skeleton thermal conductivity can continuously improve the efficiency by reducing temperature nonuniformity, but further enhancement becomes marginal for thermal conductivity over 90 W·m−1·K−1. This work paves the way for the design and deployment of efficient integrated solar thermal conversion and latent heat storage systems. © 2022 Elsevier Ltd

Keyword:

Energy efficiency Finite volume method Heat storage Latent heat Monte Carlo methods Numerical methods Phase change materials Solar energy Solar heating Solar radiation Thermal energy Virtual storage

Author Community:

  • [ 1 ] [Yao, Haichen]School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China
  • [ 2 ] [Liu, Xianglei]School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China
  • [ 3 ] [Liu, Xianglei]Key Laboratory of Thermal Management and Energy Utilization of Aviation Vehicles, Ministry of Industry and Information Technology, Nanjing; 210016, China
  • [ 4 ] [Luo, Qingyang]School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China
  • [ 5 ] [Xu, Qiao]School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China
  • [ 6 ] [Tian, Yang]School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China
  • [ 7 ] [Ren, Tianze]School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China
  • [ 8 ] [Zheng, Hangbin]School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China
  • [ 9 ] [Gao, Ke]School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China
  • [ 10 ] [Dang, Chunzhuo]School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China
  • [ 11 ] [Xuan, Yimin]School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China
  • [ 12 ] [Xuan, Yimin]Key Laboratory of Thermal Management and Energy Utilization of Aviation Vehicles, Ministry of Industry and Information Technology, Nanjing; 210016, China
  • [ 13 ] [Liu, Zhan]College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao; 266061, China
  • [ 14 ] [Yang, Xiaohu]Institute of the Building Environment & Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 15 ] [Ding, Yulong]Birmingham Centre for Energy Storage, School of Chemical Engineering, University of Birmingham, UK, Birmingham; B15 2TT, United Kingdom
  • [ 16 ] [Yao, Haichen]Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China
  • [ 17 ] [Liu, Xianglei]Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China
  • [ 18 ] [Luo, Qingyang]Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China
  • [ 19 ] [Xu, Qiao]Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China
  • [ 20 ] [Tian, Yang]Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China
  • [ 21 ] [Ren, Tianze]Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China
  • [ 22 ] [Zheng, Hangbin]Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China
  • [ 23 ] [Gao, Ke]Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China
  • [ 24 ] [Dang, Chunzhuo]Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China
  • [ 25 ] [Xuan, Yimin]Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China
  • [ 26 ] [Liu, Xianglei]Minist Ind & Informat Technol, Key Lab Thermal Management & Energy Utilizat Aviat, Nanjing 210016, Peoples R China
  • [ 27 ] [Xuan, Yimin]Minist Ind & Informat Technol, Key Lab Thermal Management & Energy Utilizat Aviat, Nanjing 210016, Peoples R China
  • [ 28 ] [Liu, Zhan]Qingdao Univ Sci & Technol, Coll Electromech Engn, Qingdao 266061, Peoples R China
  • [ 29 ] [Yang, Xiaohu]Xi An Jiao Tong Univ, Inst Bldg Environm & Sustainabil Technol, Sch Human Settlements & Civil Engn, Xi'an, Peoples R China
  • [ 30 ] [Ding, Yulong]Univ Birmingham, Birmingham Ctr Energy Storage, Sch Chem Engn, Birmingham B15 2TT, England
  • [ 31 ] [Liu, Xianglei]Minist Ind & Informat Technol, Key Lab Thermal Management & Energy Utilizat Avia, Nanjing 210016, Peoples R China
  • [ 32 ] [Xuan, Yimin]Minist Ind & Informat Technol, Key Lab Thermal Management & Energy Utilizat Avia, Nanjing 210016, Peoples R China
  • [ 33 ] [Yang, Xiaohu]Xi An Jiao Tong Univ, Inst Bldg Environm & Sustainabil Technol, Sch Human Settlements & Civil Engn, Xian, Peoples R China

Reprint Author's Address:

  • [Liu, X.]School of Energy and Power Engineering, China;;

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Source :

Applied Energy

ISSN: 0306-2619

Year: 2022

Volume: 320

9 . 7 4 6

JCR@2020

ESI Discipline: ENGINEERING;

ESI HC Threshold:7

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 9

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 12

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