EXPERIMENTAL STUDY ON THERMAL PROPERTIES AND CORROSION PROPERTIES OF NANO-ZNO/TERNARY CHLORIDE MOLTEN SALT

被引：0
|
作者：
Ji C. [1 ]
Jiang W. [1 ]
Yang X. [1 ]
机构：
[1] Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, Department of Power Engineering, North China Electric Power University, Baoding
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 11期
关键词：
corrosion; molten salt; nanoparticles; solar thermal power generation; specific heat capacity;
D O I：
10.19912/j.0254-0096.tynxb.2022-1171
中图分类号：
学科分类号：
摘要：
In the paper，KCl-CaCl2-MgCl2 ternary chloride molten salt（m（KCl）∶m（CaCl2）∶m（MgCl2）=25∶27∶48））is used as the base salt，nano-ZnO particles with different particle sizes and mass fractions were added to prepare nano-ZnO/ternary chloride molten salt，and its thermal properties and corrosion characteristics were tested. The DSC test results show that addition of 1.0% 60 nm-ZnO has the greatest enhancement on the specific heat capacity of ternary chloride molten salt；The solid specific heat capacity is increased by 18.87%，and the liquid specific heat capacity is increased by 18.98% compared with the base salt；The melting point of nano-ZnO/ ternary chloride molten salt is lower than that of base salt，and the latent heat of melting is increased；The crystal structure and micromorphology of nano-ZnO/ternary chloride molten salt were characterized by FT-IR，XRD and SEM. The corrosion characteristics of base salt and nano-ZnO/ternary chloride molten salt on three kinds of stainless steel were tested. © 2023 Science Press. All rights reserved.
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页码：426 / 433
页数：7
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共 30 条
  • [1] GU Y J，, GENG Z，, ZHANG C，, Et al., Review on key technologies of concentrating solar thermal power generation systems［J］, Thermal power generation, 46, 6, pp. 6-13, (2017)
  • [2] FADAR A., Latest developments on TES and CSP technologies—energy and environmental issues，applications and research trends［J］, Applied thermal engineering, 167, (2020)
  • [3] RIZVI S M M，, NAYFEH Y，, Et al., Study of viscosity and heat capacity characteristics of molten salt nanofluids for thermal energy storage［J］, Solar energy materials and solar cells, 210, (2020)
  • [4] Heat transfer fluids for concentrating solar power systems—a review［J］, Applied energy, 146, pp. 383-396, (2015)
  • [5] LI Z, Et al., Stability of the thermal performances of molten salt- based nanofluid［J］, Energy storage science and technology, 9, 6, pp. 1775-1783, (2020)
  • [6] LOYD N., Molten salts and applications I： molten salt history， types，thermodynamic and physical properties，and cost［J］, Journal of energy and power engineering, 12, 11, pp. 507-516, (2018)
  • [7] LI Z，, WEN B, CHEN H Z，, Et al., State-of-the-art review on high temperature molten salt based nanofluids［J］, Proceedings of the CSEE, 41, 6, pp. 2168-2187, (2021)
  • [8] PACHECO J., Overview of recent results of the solar two test and evaluations program［M］, (1999)
  • [9] LONG B, WEI X L, DING J，, Et al., Calculation of chemical thermodynamics on deterioration of ternary nitrate salts at high temperature［J］, Acta energiae solaris sinica, 32, 2, pp. 252-256, (2011)
  • [10] Concentrating solar power program review 2013（Book）［M］, (2013)
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