以十八烷和棕榈酸的低共熔物作相变材料,膨胀石墨为基体,采用真空浸渗方法,制备出十八烷-棕榈酸/膨胀石墨相变储能材料.由于膨胀石墨的多孔结构,其毛细作用力和表面张力使得相变材料在发牛固液相变的过程中,失去了流动性.采用DSC,ESEM、熔化凝同过程分析对相变储能材料进行了结构和热性能研究.结果表明,癸酸-月桂酸被有效地包封在多孔石墨孔内,膨胀石墨作为基体材料,较大的提高了相变材料的导热率,同时该储能材料还具有较高的相变潜热和较好的热稳定性,可被应用于储能和热能回收系统中.
参考文献
| [1] | Belen Zalba;Jose M Marin;Luisa F. Cabeza;Harald Mehling .Review on thermal energy storage with phase change: materials, heat transfer analysis and applications[J].Applied thermal engineering: Design, processes, equipment, economics,2003(3):251-283. |
| [2] | FARID M M;KHUDHAIR A M;RAZACK S A K et al.A review on phase change energy storage:materials and applications[J].Energy Conversion and Management,2004,45:1597-1615. |
| [3] | Sarier N;Onder E .The manufacture of microencapsulated phase change materials suitable for the design of thermally enhanced fabrics[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2007(2):149-160. |
| [4] | AHMET Sail .Form-stable paraffin/high density polyethylene composites as solid-liquid phase change material for thermal energy storage:preparation and thermal properties[J].Energy Conversion and Management,2004,45(13-14):2033-2042. |
| [5] | Ahmet Sari;Ali Karaipekli .Thermal conductivity and latent heat thermal energy storage characteristics of paraffin/expanded graphite composite as phase change material[J].Applied thermal engineering: Design, processes, equipment, economics,2007(8-9):1271-1277. |
| [6] | 陈中华,肖春香.十二醇/蒙脱土复合相变储能材料的制备及性能研究[J].功能材料,2008(04):629-631. |
| [7] | Ali Karaipekli;Ahmet Sari;Kamil Kaygusuz .Thermal conductivity improvement of stearic acid using expanded graphite and carbon fiber for energy storage applications[J].Renewable energy,2007(13):2201-2210. |
| [8] | Y.F. Zhao;M. Xiao;S.J. Wang .Preparation and properties of electrically conductive PPS/expanded graphite nanocomposites[J].Composites science and technology,2007(11/12):2528-2534. |
| [9] | Maria Natalia R. Dimaano;Takayuki Watanabe .The capric-lauric acid and pentadecane combination as phase change material for cooling applications[J].Applied thermal engineering: Design, processes, equipment, economics,2002(4):365-377. |
| [10] | 陈中华,肖春香,冯润财.CA-SA分子合金的制备及储热性能研究[J].应用化工,2008(01):1-3. |
| [11] | 李忠,井波,于少明.CA-SA/蒙脱土复合相变贮能材料的制备、结构与性能[J].化工新型材料,2007(03):42-44. |
| [12] | 张东.脂肪酸分子合金相变材料的热稳定性[J].建筑材料学报,2008(03):283-287. |
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