首页|Preparation and characterization of modified steel slag-based composite phase change materials

Preparation and characterization of modified steel slag-based composite phase change materials

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  • NSTL
  • Elsevier
© 2024 Elsevier Inc.In order to promote the resource utilization in steel slag and reduce the environmental hazards caused by steel slag, a steel slag-based composite phase change material was prepared in this experiment. Steel slag had a porous structure with good structural stability, which could be used to prepare composite phase change materials and applied in fields such as thermal energy storage and waste heat recovery. To enhance the adsorption capacity of steel slag on phase change materials, the impact of acid or alkali modifiers on steel slag was meticulously examined. The investigation revealed that the pore structure of the modified steel slag was markedly enhanced, accompanied by a notable improvement in adsorption capacity. Among the results, the adsorption rate of the acid washed modified steel slag for paraffin reached 35 %, with the phase change temperature and latent heat of phase change being 53 °C and 60 J/g. Acid washing had a significant impact on the pore structure of the steel slag, with the adsorption rate of the acid washed modified steel slag for paraffin being approximately twice that of the unmodified steel slag.

ParaffinsPhase change materialsSteel slagThermal energy storage

Yang C.、Zhang Z.、Yu H.、Xu N.、Chu H.、Rui Z.

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School of Energy and Environment Anhui University of Technology

SOJO Electric Hefei Co. Ltd.

2025

10.1016/j.ijheatfluidflow.2024.109666

International journal of heat and fluid flow

International journal of heat and fluid flow

SCI
ISSN：0142-727X
年,卷(期)：2025.111(Jan.)
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