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首页> 外文期刊>Energy Conversion & Management >Development of pomegranate-type CaCl_2@C composites via a scalable one- pot pyrolysis strategy for solar-driven thermochemical heat storage
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Development of pomegranate-type CaCl_2@C composites via a scalable one- pot pyrolysis strategy for solar-driven thermochemical heat storage

机译：通过可扩展的单盆热解策略进行石榴型CaCl_2 @ C复合材料，用于太阳能驱动的热化学蓄热液

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摘要

This study aimed to develop a novel sorbent for solar driven thermochemical heat storage. The core-shell CaCl2@C composites with tunable CaCl2 loading were obtained by a facile one-pot pyrolysis strategy, with the low-cost and abundant coal tar being used as the carbon precursor. CaCl2 was confined to the mesopores and macropores of the carbon shell, which led to a better structural stability than that of the impregnated sorbent. Moreover, the light-to-heat conversion of carbon shell was followed by the thermal energy storage by calcium chloride. In addition, the surface temperature of Ca/CT200-700 under the simulated sunlight of 1000 W/m(2) increased to 75 degrees C. After irradiation for 230 min, the volumetric energy storage density of Ca/CT200-700 was 254 kWh/m(3), with the water loss of 0.81 g-H2O/g-sorbent. This core-shell sorbent will provide new insights into the field of solar thermal conversion and storage.
机译：本研究旨在为太阳驱动的热化学蓄热进行新型吸附剂。具有可调谐CaCl2载荷的核 - 壳CaCl2 @ C复合材料通过容易的单盆热解策略获得，具有低成本和丰富的煤焦油作为碳前体。 CaCl2限制在碳壳的中孔和大孔中，这导致了比浸渍的吸附剂更好的结构稳定性。此外，碳壳的光热转化率随着氯化钙的热能储存。此外，在1000W / m（2）的模拟阳光下的CA / CT200-700的表面温度升至75℃。在照射230分钟后，CA / CT200-700的体积储能密度为254千瓦时/ m（3），水分损失为0.81g-h2O / g-sorbent。该核心壳吸附剂将在太阳能热转换和储存领域提供新的见解。

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  • 来源
    《Energy Conversion & Management》 |2020年第5期|112694.1-112694.11|共11页
  • 作者

    Wei Siyu; Han Rui; Su Yanlin; Zhou Wei; Li Junfeng; Su Chengzhi; Gao Jihui; Zhao Guangbo; Qin Yukun;

  • 作者单位

    Harbin Inst Technol Sch Energy Sci & Engn Harbin 150001 Peoples R China;

    Tianjin Univ Sch Environm Sci & Engn Tianjin 300072 Peoples R China;

    Harbin Inst Technol Sch Energy Sci & Engn Harbin 150001 Peoples R China;

    Harbin Inst Technol Sch Energy Sci & Engn Harbin 150001 Peoples R China;

    Harbin Inst Technol Sch Energy Sci & Engn Harbin 150001 Peoples R China;

    Harbin Inst Technol Sch Energy Sci & Engn Harbin 150001 Peoples R China;

    Harbin Inst Technol Sch Energy Sci & Engn Harbin 150001 Peoples R China;

    Harbin Inst Technol Sch Energy Sci & Engn Harbin 150001 Peoples R China;

    Harbin Inst Technol Sch Energy Sci & Engn Harbin 150001 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sorption thermochemical energy storage; Core-shell sorbents; Photothermal; Calcium chloride;

    机译：吸附热化学储能;核心壳吸附剂;光热;氯化钙;

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