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Study on aluminum ammonium sulfate dodecahydrate composite phase change material and its properties
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Zhansheng FAN, Yuanwei LU, Yuanyuan WANG, Zhengyang LI, Tian ZHAO, Yuting WU
Thermal Power Generation | 2023, 52(2) : 32 - 38
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Thermal Power Generation | 2023, 52(2): 32-38
• Research of thermal energy storage technology •
Study on aluminum ammonium sulfate dodecahydrate composite phase change material and its properties
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Zhansheng FAN, Yuanwei LU, Yuanyuan WANG, Zhengyang LI, Tian ZHAO, Yuting WU
Affiliations
  • MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing University of Technology, Beijing 100124, China
Published: 2023-02-25 doi: 10.19666/j.rlfd.202210246
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In order to solve the problems of high supercooling degree, low thermal conductivity and poor cycle stability of single hydrated salt phase change material, ammonium aluminum sulfate dodecahydrate was used as phase change material, Al2O3 and xanthan gum were used as additives to modify ammonium aluminum sulfate dodecahydrate by melt blending, and a new composite phase change material was prepared by using porous adsorption method to composite modified expanded graphite and modified ammonium aluminum sulfate dodecahydrate. The thermophysical properties, supercooling degree, cycle stability and material compatibility were analyzed. The results show that, the melting point, latent heat and thermal conductivity of the composite phase change material were 93.23 ℃, 235.40 kJ/kg and 4.086 W/(m·K), respectively. After 50 cycles, the supercooling degree was stable at 24 ℃, and after 300 cycles, the latent heat only decreased by 5.9%, with good stability. The 316L stainless steel and composite phase change materials have good compatibility, and can be used as packaging container materials. The composite phase change material has good performance and great application potential in building heating.

composite phase change material  /  ammonium aluminum sulfate dodecahydrate  /  thermophysical property  /  compatibility  /  stability
Zhansheng FAN, Yuanwei LU, Yuanyuan WANG, Zhengyang LI, Tian ZHAO, Yuting WU. Study on aluminum ammonium sulfate dodecahydrate composite phase change material and its properties[J]. Thermal Power Generation, 2023 , 52 (2) : 32 -38 . DOI: 10.19666/j.rlfd.202210246
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  • National Natural Science Foundation of China(52076006; 52106096)
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Year 2023 volume 52 Issue 2
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Article Info
doi: 10.19666/j.rlfd.202210246
  • Receive Date：2022-10-30
  • Online Date：2026-01-23
  • Published：2023-02-25
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  • Received：2022-10-30
Funding
National Natural Science Foundation of China(52076006; 52106096)
Affiliations
    MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing University of Technology, Beijing 100124, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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