添加纳米SiO2对单组分及二元硝酸盐热物性的影响

doi:10.11949/j.issn.0438-1157.20180267

化工学报 ›› 2018, Vol. 69 ›› Issue (10): 4418-4426.DOI: 10.11949/j.issn.0438-1157.20180267

• 材料化学工程与纳米技术 • 上一篇下一篇

添加纳米SiO₂对单组分及二元硝酸盐热物性的影响

熊亚选¹, 王振宇¹, 徐鹏¹, 吴玉庭², 丁玉龙³, 马重芳²

1. 北京建筑大学供热供燃气通风及空调工程北京市重点实验室, 北京 100044;
2. 北京工业大学传热强化与过程节能教育部重点实验室暨传热与能源利用北京市重点实验室, 北京 100124;
3. 伯明翰大学能源存储中心, 英国B15 2TT

收稿日期:2018-03-14 修回日期:2018-07-16 出版日期:2018-10-05 发布日期:2018-10-05
通讯作者: 徐鹏
基金资助:
北京市自然科学基金重点项目（3151001）；国家自然科学基金项目（51206004）。

Eenhancing thermal properties of mono and binary nitrates by adding SiO₂ nanoparticles

XIONG Yaxuan¹, WANG Zhenyu¹, XU Peng¹, WU Yuting², DING Yulong³, MA Chongfang²

1. Key Laboratory of HVAC, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
2. Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Ministry of Education, Key Laboratory of Heat Transfer and Energy Conservation of Beijing Municipality, Beijing University of Technology, Beijing 100124, China;
3. Birmingham Center for Energy Storage, University of Birmingham, B15 2TT, UK

Received:2018-03-14 Revised:2018-07-16 Online:2018-10-05 Published:2018-10-05
Supported by:
supported by the Natural Science Foundation of Beijing(3151001) and the National Natural Science Foundation of China(51206004).

摘要/Abstract

摘要：

熔盐作为相变材料，可以用作聚热太阳能电站中的储热介质，通过向基盐中添加不同比例的纳米材料可以显著增强熔盐的热物性。将20 nm的SiO₂纳米颗粒分别分散到硝酸钾、硝酸钠和solar salt （60% NaNO₃，40% KNO₃，均为质量分数）中制备成稳定的纳米流体，制备的每一种纳米流体都经过溶解、超生、干燥蒸发等过程。采用差式扫描量热法测量熔盐的比热容、熔化潜热、熔点等热物理性质，并采用激光闪射法对基盐和纳米熔盐的热扩散系数进行测量和分析。结果表明，SiO₂颗粒的添加对硝酸钠、硝酸钾和solar salt的熔化潜热、比热容和热导率等热物理性质有显著的影响。与基盐相比，solar salt、硝酸钾和硝酸钠在液态的比热容值分别增加了4.7%～15.89%、3.9%～33.5%、1.9%～11.86%；测得的热导率分别最大增加了17.16%、39.7%、9.5%。

关键词: 纳米流体, 相变温度, 比热容, 熔化潜热, 热导率, 分解温度

Abstract:

Molten salt as phase change materials can be used as thermal storage medium in concentrating solar power (CSP) system. It is possible to significantly improve the thermal properties of molten salt by adding nanoparticles to molten salt. Nanofluids were synthesized by dispersing 20 nm SiO₂ particles to potassium nitrate, sodium nitrate, and solar salt (60% NaNO₃ and 40% KNO₃, mass fraction) respectively. Nanofluids were prepared by water-solution, sonication, and evaporation. The thermo-physical properties (latent heat, specific heat and molting point) of nonofluids were characterized by DSC method, and the thermal diffusivity was analyzed by laser flash apparatus (LFA). Results show that mass fraction of 20 nm SiO₂ particles significantly enhanced latent heat, specific heat and thermal conductivities of potassium nitrate, sodium nitrate, and solar salt. Compared with base salt, the average specific heat improved of solar salt,potassium nitrate,sodium nitrate with 20 nm SiO₂ nanoparticles was found to be 4.7%-15.89%, 3.9%-33.5%, 1.9%-11.86% in liquid, and the maximum thermal conductivity increased by a maximum of 17.16%, 39.7%, and 9.5%, respectively.

Key words: nanofluids, phase-change temperature, specific heat capacity, melting latent heat, thermal conductivities, decomposition temperature

中图分类号:

TB321

熊亚选, 王振宇, 徐鹏, 吴玉庭, 丁玉龙, 马重芳. 添加纳米SiO₂对单组分及二元硝酸盐热物性的影响[J]. 化工学报, 2018, 69(10): 4418-4426.

XIONG Yaxuan, WANG Zhenyu, XU Peng, WU Yuting, DING Yulong, MA Chongfang. Eenhancing thermal properties of mono and binary nitrates by adding SiO₂ nanoparticles[J]. CIESC Journal, 2018, 69(10): 4418-4426.

参考文献 31

[1]	KENISARIN M M. High-temperature phase change materials for thermal energy storage[J]. Renewable & Sustainable Energy Reviews, 2010, 14(3):955-970.
[2]	TAMME R, BAUER T, BUSCHLE J, et al. Latent heat storage above 120℃ for applications in the industrial process heat sector and solar power generation[J]. International Journal of Energy Research, 2008, 32(3):264-271.
[3]	KINGA P, KRZYSZTOF P. Phase change materials for thermal energy storage[J]. Progress in Materials Science, 2014, 65(10):67-123.
[4]	SHARMA A, TYAGI V V, CHEN C R, et al. Review on thermal energy storage with phase change materials and applications[J]. Renew. Sustain. Energy Rev., 2009, 13(2):318-345.
[5]	HERRMANN U, KEARNEY D W. Survey of thermal energy storage for parabolic trough power plants[J]. Journal of Solar Energy Engineering, 2002, 124(1):145-152.
[6]	LIU Y S, YANG Y. Use of nano-α-Al2O3 to improve binary eutectic hydrated salt as phase change material[J]. Solar Energy Materials & Solar Cells, 2017, 160:18-25.
[7]	RATHOD M K, BANERJEE J. Thermal stability of phase change materials used in latent heat energy storage systems:a review[J]. Renewable and Sustainable Energy Reviews, 2013, 18(2):246-258.
[8]	SHIN D, BANERJEE D. Enhanced specific heat of silica nanofluid[J]. Journal of Heat Transfer, 2015, 133(2):216-226.
[9]	熊亚选, 栗博, 吴玉庭,等. 添加纳米SiO2对四元溴化盐相变热物性的影响[J]. 化工学报, 2017, 68(4):1299-1305. XIONG Y X, LI B, WU Y T, et al. Effects of nano-SiO2 addition on the thermal properties of quaternary bromide salts[J]. CIESC Journal, 2017, 68(4):1299-1305.
[10]	WU Y T, LI Y, REN N, et al. Improving the thermal properties of NaNO3-KNO3 for concentrating solar power by adding additives[J]. Solar Energy Materials & Solar Cells, 2017, 160:263-268.
[11]	CHOI S, EASTMAN J. Enhancing thermal conductivity of fluids with nanoparticles[J]. Dev. Appl. Newt. Flows, ASME, 1995, 23(1):99-105.
[12]	CHIERUZZI M, MILIOZZI A, CRESCENZI, et al. A new phase change material based on potassium nitrate with silica and alumina nanoparticles for thermal energy storage[J]. Nanoscale Research Letters, 2015, 10(1):984.
[13]	SHIN D, BANERJEE D. Enhanced thermal properties of SiO2 nanocomposite for solar thermal energy storage applications[J]. International Journal of Heat & Mass Transfer, 2015, 84:898-902.
[14]	SHIN D, BANERJEE D. Specific heat of nanofluids synthesized by dispersing alumina nanoparticles in alkali salt eutectic[J]. International Journal of Heat & Mass Transfer, 2014, 74(5):210-214.
[15]	MING X H, PAN C. Optimal concentration of alumina nanoparticles in molten Hitec salt to maximize its specific heat capacity[J]. International Journal of Heat & Mass Transfer, 2014, 70(3):174-184.
[16]	ZHANG L D, CHEN X, WU Y T, et al. Effect of nanoparticle dispersion on enhancing the specific heat capacity of quaternary nitrate for solar thermal energy storage application[J]. Solar Energy Materials & Solar Cells, 2016, 157:808-813.
[17]	JR P D M, ALAM T E, KAMAL R, et al. Nitrate salts doped with CuO nanoparticles for thermal energy storage with improved heat transfer[J]. Applied Energy, 2016, 165:225-233.
[18]	TIZNOBAIK H, BANERJEE D, SHIN D. Effect of formation of "long range" secondary dendritic nanostructures in molten salt nanofluids on the values of specific heat capacity[J]. International Journal of Heat & Mass Transfer, 2015, 91:342-346.
[19]	CHIERUZZI M, CERRITELLI G F, MILIOZZI A, et al. Heat capacity of nanofluids for solar energy storage produced by dispersing oxide nanoparticles in nitrate salt mixture directly at high temperature[J]. Solar Energy Materials & Solar Cells, 2017, 167:60-69.
[20]	TAKAHASHI Y, SAKAMOTO R, KAMIMOTO M. Heat capacities and latent heats of LNO3, NaNO3, and KNO3[J]. International Journal of Thermophysics, 1988, 9(6):1081-1090.
[21]	ROGERS D J, JANZ G J. Melting-crystallization and pre-melting properties of NaNO3-KNO3[J]. J. Chem. Eng. Data, 1982, 27(4):424-428.
[22]	DANCY E A, NGUYEN-DUY N D P. Calorimetric determination of the thermodynamic properties of the binary eutectics in the NaNO3 Ca(NO3)2 and KNO3 Ca(NO3)2 systems[J]. Thermochimica Acta, 1981, 12(6):59-63.
[23]	JANZ G J. Molten Salts Handbook[M]. Academic Press,1967:39-51.
[24]	WANG L, TAN Z C, MENG S G, et al. Enhancement of molar heat capacity of nanostructured Al2O3[J]. J. Nanoparticle Res., 2001, 3(5/6):483-487.
[25]	WANG B X, ZHOU L P, PENG X F. Surface and size effects on the specific heat capacity of nanoparticles[J]. Int. J. Thermophys., 2006, 27(1):139-151.
[26]	DUDDA B, SHIN D. Effect of nanoparticle dispersion on specific heat capacity of a binary nitrate salt eutectic for concentrated solar power applications[J]. International Journal of Thermal Sciences, 2013, 69(7):37-42.
[27]	SCHULLER M, LITTLE F, MALIK D, et al. Molten salt-carbon nanotube thermal energy storage for concentrating solar power systems final report[R]. Office of Scientific & Technical Information Technical Reports, 2012.
[28]	AHMED S F, KHALID M, RASHMI W, et al. Recent progress in solar thermal energy storage using nanomaterials[J]. Renewable & Sustainable Energy Reviews, 2017, 67:450-460.
[29]	RASHMI W, KHALID M, ONG S S, et al. Preparation, thermo-physical properties and heat transfer enhancement of nanofluids[J]. Materials Research Express, 2014, 1(3):032001.
[30]	KEBLINSKI P, PHILLPOT S R, CHOI S U S, et al. Mechanisms of heat flow in suspensions of nano-sized particles (nanofluids)[J]. International Journal of Heat & Mass Transfer, 2002, 45(4):855-863.
[31]	LAMAS B, ABREU B, FONSECA A, et al. Critical analysis of the thermal conductivity models for CNT based nanofluids[J]. International Journal of Thermal Sciences, 2014, 78(1):65-76.

添加纳米SiO₂对单组分及二元硝酸盐热物性的影响

Eenhancing thermal properties of mono and binary nitrates by adding SiO₂ nanoparticles

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献 31

相关文章 15

编辑推荐

Metrics

本文评价

[1]	赵佳佳, 田世祥, 李鹏, 谢洪高. SiO₂-H₂O纳米流体强化煤尘润湿性的微观机理研究[J]. 化工学报, 2023, 74(9): 3931-3945.
[2]	范坤阳, 杨景兴, 许海波, 连兴容, 何凤梅, 陈聪慧, 李增耀. 遮光剂掺杂SiO₂气凝胶传热的统一格子Boltzmann模型研究[J]. 化工学报, 2023, 74(5): 1974-1981.
[3]	石兴达, 陈华艳, 戈亚南, 武春瑞, 贾红友, 吕晓龙. 低界面热阻改性氮化铝和多壁碳纳米管充填PVDF构建杂化三维网络及其导热性能强化[J]. 化工学报, 2022, 73(5): 2262-2269.
[4]	许昊, 陈伟, 李邹路. 以［Li（TX-7）］SCN/H₂O为工质对的第二类热泵特性研究[J]. 化工学报, 2022, 73(2): 577-586.
[5]	徐欢, 柯律, 张生辉, 张子林, 韩广东, 崔金声, 唐道远, 黄东辉, 高杰峰, 何新建. GO表面原位生长CNTs改善聚丙烯导热复合材料分散与界面形态[J]. 化工学报, 2022, 73(11): 5150-5157.
[6]	梁恒, 刘益才, 汪谦旭, 赵祥乐, 李政. 开孔泡沫金属复合材料有效热导率的研究进展[J]. 化工学报, 2021, 72(S1): 7-20.
[7]	齐聪, 李可傲, 李春阳. 微肋结构对纳米流体绕流圆柱热性能的影响[J]. 化工学报, 2021, 72(4): 2006-2017.
[8]	杨振, 姚元鹏, 吴慧英. 基于导热形状因子的泡沫金属导热特性分析[J]. 化工学报, 2021, 72(3): 1295-1301.
[9]	刘昌会, 刘红莉, 张天键, 饶中浩. 基于尿素/氯化胆碱低共熔溶剂体系纳米流体制备及其热物性研究[J]. 化工学报, 2021, 72(3): 1333-1341.
[10]	刘昌会,张海悦,李业美,张天键,顾彦龙. 低共熔溶剂在储能与传热方面的研究进展[J]. 化工学报, 2021, 72(10): 4973-4986.
[11]	李富恒. 石墨烯纳米片-乙二醇纳米流体光热转化特性研究[J]. 化工学报, 2020, 71(S1): 479-485.
[12]	田东民, 吴延鹏, 陈凤君. 基于纳米增强相变材料的铜-水热管传热性能分析[J]. 化工学报, 2020, 71(S1): 220-226.
[13]	石彦, 赵君文, 袁艳平, 戴光泽, 韩靖. Cu含量对Al-Cu-Si合金相变储热性能的影响[J]. 化工学报, 2020, 71(5): 2017-2023.
[14]	郎中敏, 吴刚强, 赫文秀, 韩晓星, 苟延梦, 李双莹. 二氧化铈/水基纳米流体核沸腾传热特性[J]. 化工学报, 2020, 71(5): 2061-2068.
[15]	刘明, 徐哲. 甲烷水合物声子导热及量子修正[J]. 化工学报, 2020, 71(4): 1424-1431.