熊亚选,高梓靖,张艾桐露,钱向瑶,宋超宇,何苗,吴玉庭,丁玉龙

• 1:北京建筑大学未来新材料研究院
• 2:北京京能热力发展有限公司通州分公司
• 3:北京工业大学传热强化与过程节能教育部重点实验室
• 4:英国伯明翰大学伯明翰储能中心

摘要(Abstract)：

工业生产及城市居民生活产生大量污水污泥，污泥的填埋严重破坏生态环境。为大规模消纳市政污泥，变废为宝，将其制备成低碳低成本储热材料，提出添加碳化硅、氮化硼和膨胀石墨为导热增强剂，以强化污泥焚烧灰渣/硝酸钾复合相变储热材料（50%污泥焚烧炉渣+50%硝酸钾）导热性能的思路。通过制备复合相变储热材料，研究导热增强剂对复合相变储热材料热性能的影响。结果表明：膨胀石墨不适合作为污泥焚烧灰渣/硝酸钾复合相变储热材料的导热增强剂；添加质量分数为2%的导热增强剂在熔化潜热改善方面是最优的，且添加氮化硼优于添加碳化硅；添加质量分数为2%氮化硼的样品的导热系数提升最为显著，在100～400℃时分别比样品SC3（不加导热增强剂）升高65%、93%、117%、203%；经历1 000次加热/冷却循环后，氮化硼质量分数为2%的样品潜热为35.29 J/g，储热密度为292.1 J/g，碳化硅质量分数为2%的样品潜热为40.90 J/g，储热密度为334.9 J/g；碳化硅质量分数为2%的样品、氮化硼质量分数为2%的样品传热速率分别为0.16、0.17℃/s。研究结果初步证明碳化硅和氮化硼作为污泥焚烧灰渣/硝酸钾复合相变储热材料的导热增强剂是可行的。

关键词(KeyWords)： 污泥焚烧灰渣;硝酸钾;复合相变储热材料;导热增强剂;储热性能;热稳定性

Abstract:

Keywords:

基金项目(Foundation): 北京市教育委员会科研计划项目(KM201910016011)~~

作者(Author): 熊亚选,高梓靖,张艾桐露,钱向瑶,宋超宇,何苗,吴玉庭,丁玉龙

DOI: 10.19666/j.rlfd.202412265

参考文献(References)：

• [1]汪翔,陈海生,徐玉杰,等.储热技术研究进展与趋势[J].科学通报, 2017, 62(15):1602-1610.WANG Xiang, CHEN Haisheng, XU Yujie, et al.Advances and prospects in thermal energy storage:a critical review[J]. Chinese Science Bulletin, 2017,62(15):1602-1610.
• [2] TAMME R, TAUT U, STREUBER C, et al. Energy storage development for solar thermal processes[J]. Solar Energy Materials, 1991, 24:386-396.
• [3]张钟平,刘亨,谢玉荣,等.熔盐储热技术的应用现状与研究进展[J].综合智慧能源, 2023, 45(9):40-47.ZHANG Zhongping, LIU Heng, XIE Yurong, et al.Application and research progress of molten salt heat storage technology[J]. Integrated Intelligent Energy,2023, 45(9):40-47.
• [4]药晨华,熊亚选,任静,等.硝酸钠/兰炭灰复合相变储热材料的制备及性能[J].复合材料学报, 2023,40(1):300-309.YAO Chenhua, XIONG Yaxuan, REN Jing, et al.Preparation and properties of sodium nitrate/semi-coke ash shape-stable phase change composite[J]. Acta Materiae Compositae Sinica, 2023, 40(1):300-309.
• [5] LIU R P, ZHANG F, SU W M, et al. Impregnation of porous mullite with Na2SO4 phase change material for thermal energy storage[J]. Solar Energy Materials and Solar Cells, 2015, 134:268-274.
• [6]敖慈.高性能硬脂酸基复合相变材料的制备及性能研究[D].呼和浩特:内蒙古工业大学, 2023:1.AO Ci. Preparation and performance study of high performance stearic acid-based composite phase change material[D]. Hohhot:Inner Mongolia University of Technology, 2023:1.
• [7] XIONG Y X, ZHANG A T L, YANG Y, et al. Effect of carbon capture on carbide slag-steel slag shape-stable phase change materials for thermal energy storage[J].Renewable Energy, 2024, 235:121251.
• [8] HE F, SONG G P, HE X D, et al. Structural and phase change characteristics of inorganic microencapsulated core/shell Al-Si/Al2O3 micro-particles during thermal cycling[J]. Ceramics International, 2015, 41:10689-10696.
• [9] CHEN H S, LIU C, XU Y J, et al. The strategic position and role of energy storage under the goal of carbon peak and carbon neutrality[J]. Energy Storage Science and Technology, 2021, 10:1477-1485.
• [10]熊亚选,尹心成,宋超宇,等.污泥焚烧炉渣/硝酸钾复合相变储热材料制备及性能[J].储能科学与技术,2024, 13(10):59-70.XIONG Yaxuan, YIN Xincheng, SONG Chaoyu, et al.Preparation and performance evaluation of sludge incineration residue/potassium nitrate phase-change composites[J]. Energy Storage Science and Technology,2024, 13(10):59-70.
• [11] WANG T Y, ZHANG T Y, XU G Z, et al. A new low-cost high temperature shape-stable phase change material based on coal fly ash and K2CO3[J]. Solar Energy Materials and Solar Cells, 2020, 206:110328.
• [12]肖俊兵,黄金.剥离膨胀石墨/熔融盐材料的制备及其性能研究[J].太阳能学报, 2015, 36(3):630-635.XIAO Junbing, HUANG Jin. Preparation and performance study of expanded graphite/molten salt materials[J]. Acta Energiae Solaris Sinica, 2015, 36(3):630-635.
• [13]黄友庭,李晓伟,查元飞,等.放电等离子烧结TiCN/W-Cu复合材料的高温摩擦磨损性能[J].机械工程材料, 2022, 46(6):11-20.HUANG Youting, LI Xiaowei, ZHA Yuanfei, et al. High temperature friction and wear properties of TiCN/W-Cu composites by spark plasma sintering[J]. Materials for Mechanical Engineering, 2022, 46(6):11-20.
• [14]刘远超,蒋旭浩,邵钶,等.几何尺寸及缺陷对石墨炔纳米带热输运特性的影响[J].化工学报, 2023, 74(6):2708-2716.LIU Yuanchao, JIANG Xuhao, SHAO Ke, et al.Influence of geometrical dimensions and defects on the thermal transport properties of graphyne nanoribbons[J].CIESC Journal, 2023, 74(6):2708-2716.
• [15] LUGOVITSKAYA T N, ROGOZHNIKOV D A.Construction of lignosulphonate-containing polymersomes and prospects for their use for elemental sulfur encapsulation[J]. Journal of Molecular Liquids, 2024,400:124612.