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题名: Thermodynamic investigation of a solid-solid phase change material: 2-Amino-2-methyl-1,3-propanediol by calorimetric methods
作者: Tong Bo2, 3;  Tan Zhi-Cheng1, 3;  Liu Rui-Bin2;  Meng Chang-Gong2;  Zhang Jing-Nan1
关键词: 2-Amino-2-methyl-1,3-propanediol ;  Thermal energy storage ;  Phase change materials ;  Calorimetric methods ;  Combustion energy
刊名: ENERGY CONVERSION AND MANAGEMENT
发表日期: 2010-10-01
DOI: 10.1016/j.enconman.2010.02.021
卷: 51, 期:10, 页:1905-1910
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Thermodynamics ;  Energy & Fuels ;  Mechanics ;  Physics, Nuclear
研究领域[WOS]: Thermodynamics ;  Energy & Fuels ;  Mechanics ;  Physics
英文摘要: An important solid-solid phase change heat storage material (PCM) 2-amino-2-methyl-1,3-propanediol was investigated by calorimetric methods. The molar heat capacities of the compound were measured in the temperature range from 78 to 405 K by means of a small sample automated adiabatic calorimeter. A solid-solid and solid-liquid phase transitions were found at T = 351.598 K and 380.633 K. respectively, from the experimental C(p)-T curve. The molar enthalpies and entropies of these transitions were determined to be 24.33 +/- 0.02 kJ mol(-1), 69.20 +/- 0.07 J K(-1) mol(-1) for the solid-solid phase transition and 4.01 +/- 0.01 kJ mol(-1), 10.52 +/- 0.01 J K(-1) mol(-1) for the solid-liquid phase transition, respectively. The thermodynamic functions (H(T)-H(298.15)) and (S(T)-S(298.15)), were derived from the heat capacity data in the temperature range of 78-405 K with an interval of 5 K. A precise oxygen-bomb combustion calorimeter was used to obtain the standard molar enthalpy of combustion and the standard molar enthalpy of formation, Delta(c)H(m)(0) (C(5)H(11)NO(2), Cr) = ( -3326.25 +/- 0.52) kJ mol(-1) and Delta(f)H(m)(0) (C(5)H(11)NO(2), Cr) = (-213.37 +/- 0.86) kJ mol(-1). DSC and TG tests were performed to investigate the solid-solid and solid-liquid phase transition behaviors and its thermostability. The results were in agreement with those obtained from heat capacity measurements, which indicated that 2-amino-2-methyl-1,3-propanediol possesses typical solid-solid phase change material characteristics, such as, suitable transition temperature, high transition enthalpy and good thermal stability. (C) 2010 Elsevier Ltd. All rights reserved.
关键词[WOS]: THERMAL-ENERGY STORAGE ;  HEAT-CAPACITY MEASUREMENT ;  BINARY-SYSTEM ;  POLYALCOHOLS
语种: 英语
WOS记录号: WOS:000278730100009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141850
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
2.Dalian Univ Technol, Sch Chem Engn, Dept Chem, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian 116023, Peoples R China

Recommended Citation:
Tong Bo,Tan Zhi-Cheng,Liu Rui-Bin,et al. Thermodynamic investigation of a solid-solid phase change material: 2-Amino-2-methyl-1,3-propanediol by calorimetric methods[J]. ENERGY CONVERSION AND MANAGEMENT,2010,51(10):1905-1910.
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