Effect of SiC on the Heat Transfer and Mechanical Properties of Energy Pile Concrete
YIN Ya1, LI Qingwen1,2,*, QIAO Lan1, ZHANG Qinglong1
1 School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China 2 Jianlong Group & USTB Joint Laboratory, Beijing 100083, China
Abstract: As a building energy-saving technology, energy pile system can effectively alleviate the energy crisis by developing clean energy. The heat transfer enhanced concrete prepared by adding SiC powder is taken as the research object. Through the analysis of energy pile enhanced heat transfer model, indoor heat transfer and mechanical properties test and central heat source thermal imaging results, the results showed that the thermal conductivity of SiC concrete increases linearly with the increase of SiC content at the same ambient temperature. In terms of mechanical properties, when the mass ratio of SiC reaches 10%, the compressive strength and tensile strength of concrete are increased by 6.3% and 8.3% respectively compared with plain concrete. When the mass ratio of SiC reaches 15%, the growth rate of compressive strength slows down and the tensile strength decreases. Central heat source imaging also further verified that the heat transfer efficiency from inside to outside of SiC sample was significantly higher than that of ordinary concrete. Compared with 0% SiC sample, the central temperature of 10% SiC sample decreased by 39.2%. It is found that when the addition of SiC powder reaches 10%, the thermal conductivity of reinforced concrete increases significantly and the compressive strength increases most obviously, which provides a reliable reference method for improving the thermal efficiency of energy pile.
尹雅, 李庆文, 乔兰, 张庆龙. SiC对能源桩混凝土传热与力学性能的影响[J]. 材料导报, 2023, 37(10): 21060198-5.
YIN Ya, LI Qingwen, QIAO Lan, ZHANG Qinglong. Effect of SiC on the Heat Transfer and Mechanical Properties of Energy Pile Concrete. Materials Reports, 2023, 37(10): 21060198-5.
1 Xia C C, Cao S D, Wang W. Chinese Journal of Underground Space and Engineering, 2009, 5(3), 419(in Chinese). 夏才初, 曹诗定, 王伟. 地下空间与工程学报, 2009, 5(3), 419. 2 Zhao J, Zhang C L, Li X G. Acta Energiae Solaris Sinica, 2006, 27(1), 63(in Chinese). 赵军, 张春雷, 李新国. 太阳能学报, 2006, 27(1), 63. 3 Zhao H F, Gui S Q, Li Q, et al. Journal of Yangtze River Scientific Research Institute, 2017, 34(8), 153(in Chinese). 赵海丰, 桂树强, 李强, 等. 长江科学院院报, 2017, 34(8), 153. 4 Liu H L, Wang C L, Kong G Q, et al. Rock and Soil Mechanics, 2016, 37(S1), 441(in Chinese). 刘汉龙, 王成龙, 孔纲强, 等. 岩土力学, 2016, 37(S1), 441. 5 Go G H, Lee S R, Yoon S, et al. Applied Energy, 2014, 125, 165. 6 Xiang Y, Su H, Gou W S, et al. International Journal of Heat and Mass Transfer, 2015, 91, 777. 7 Fadejev J, Kurnitski J. Energy and Buildings, 2015, 106, 23. 8 Park S, Lee D, Choi H J, et al. Energy, 2015, 81, 56. 9 Ghasemi O, Basu P. Energy and Buildings, 2013, 66, 470. 10 Park H, Lee S R, Yoon S, et al. Applied Energy, 2013, 103, 12. 11 Faizal M, Bouazza A, Singh R. Renewable and Sustainable Energy Reviews, 2016, 57, 16. 12 Caulk R, Ghazanfari E, Mccartney J. Geomechanics for Energy and the Environment, 2016, 5, 1. 13 Ghasemi O, Basu P. Renewable Energy, 2016, 86, 1178. 14 Cecinato F, Loveridge F. Energy, 2015, 82, 1021. 15 Astrain D, Aranguren P, Martinez A, et al. Applied Thermal Enginee-ring, 2016, 103, 1289. 16 Xiao J Z, Song Z W, Zhang F. Journal of Building Materials, 2010, 13(1), 17(in Chinese). 肖建庄, 宋志文, 张枫. 建筑材料学报, 2010, 13(1), 17. 17 Ma K Z, Liu L, Liu C, et al. Journal of Building Materials, 2017, 20(2), 261(in Chinese). 马恺泽, 刘亮, 刘超, 等. 建筑材料学报, 2017, 20(2), 261. 18 Puzach V G, Shustrov N S, Chervyakov V M, et al. Refractories and Industrial Ceramics, 2019, 60(6), 296. 19 Sui Z L, Zhao C L, Li Q W, et al. Journal of Guangxi University (Natural Science Edition), 2021, 46(1), 83(in Chinese). 隋智力, 赵春雷, 李庆文, 等. 广西大学学报(自然科学版), 2021, 46(1), 83. 20 Gong Z W, Wang Y. New Building Materials, 2021, 48(2), 146(in Chinese). 弓中伟, 王颖. 新型建筑材料, 2021, 48(2), 146. 21 Jiang F. Building Materials World, 2020, 41(5), 22(in Chinese). 江锋. 建材世界, 2020, 41(5), 22. 22 Wang J P, He D G, Zhao W Y. Equipment for Electronic Products Manufacturing, 2018, 47(4), 23(in Chinese). 王家鹏, 贺东葛, 赵婉云. 电子工业专用设备, 2018, 47(4), 23. 23 Mohammed F, Abdelmalek B, Rao M. Renewable and Sustainable Energy Reviews, 2016, 57, 16. 24 Kim H G, Qudoos A, Jeon I K, et al. Construction and Building Mate-rials, 2020, 258, 119637. 25 普通混凝土配合比设计规程(JGJ 55-2011), 中国建筑工业出版社, 2011. 26 Zhu L, Dai T, He Z C. Materials Science and Technology, 2017, 25(6), 50(in Chinese). 朱琳, 戴挺, 何志成. 材料科学与工艺, 2017, 25(6), 50.