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Heat transfer fins can be used to improve the operation performance of heat storage tanks using phase change filling material (PCM). Based on the COMSOL software, the effects of annular heat transfer fin's parameters (fin length, fin thickness and fin angle) on charging performance of a double-tube PCM heat storage tank is preliminarily evaluated. The results show that, when the fin length increases from 1.0 m to 1.2 m, the total melting time of the filling material shortens from 8 h to 5 h. When the fin thickness increases from 40 mm to 60 mm, the total melting time of the filling material decreases from 10 h to about 6 h, and the average charging rate increases from 11.3×108 kJ/h to 14.8×108 kJ/h. When the fin angle is –15°, the tank has the shortest total melting time and the maximum average charging rate, which is 14.3×108 kJ/h. For the double-tube PCM tank investigated in this study, the optimal fin angle is -15°. The results can provide basis for the design of double-tube PCM heat storage tanks for CSP plants.

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传热翅片可用于改善相变类材料(PCM)储热罐的运行性能。基于COMSOL软件,初步评估了环形翅片参数(翅片长度、厚度及倾斜角度)对双套管式相变储热罐蓄热性能的影响。结果表明:随着翅片长度从1.0 m增加到1.2 m,相变熔盐的总熔化时间从8 h缩短到5 h;当翅片厚度从40 mm增加到60 mm时,相变熔盐的总熔化时间从10 h缩短至6 h左右,平均蓄热速率从1.3×108 kJ/h增加到14.8×108 kJ/h;当翅片角度为–15°时,储热罐内PCM的总熔化时间最短,平均蓄热速率最大,为14.3×108 kJ/h,对于本文双套管式PCM储热罐,最佳倾斜角度为–15°。研究结果可为用于太阳能光热电站的双套管式相变储热罐的设计提供依据。

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姜铁骝(1982),男,博士,副教授,主要研究方向为太阳能利用,
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王刚(1984),男,博士,教授,主要研究方向为太阳能利用,

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环形翅片对用于太阳能光热电站的相变储热罐蓄热性能的影响
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王刚 , 庞仕承 , 姜铁骝
热力发电 | 热储能技术研究 2023,52(2): 39-45
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热力发电 | 热储能技术研究 2023, 52(2): 39-45
环形翅片对用于太阳能光热电站的相变储热罐蓄热性能的影响
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王刚 , 庞仕承, 姜铁骝
作者信息
  • 东北电力大学能源与动力工程学院,吉林 吉林 132012
  • 王刚(1984),男,博士,教授,主要研究方向为太阳能利用,

通讯作者:

姜铁骝(1982),男,博士,副教授,主要研究方向为太阳能利用,
Effect of annular heat transfer fin on charging performance of heat storage tank using phase change material for solar thermal power plants
Gang WANG , Shicheng PANG, Tieliu JIANG
Affiliations
  • School of Energy and Power Engineering, Northeast Electric Power University, Jilin 132012, China
出版时间: 2023-02-25 doi: 10.19666/j.rlfd.202208182
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传热翅片可用于改善相变类材料(PCM)储热罐的运行性能。基于COMSOL软件,初步评估了环形翅片参数(翅片长度、厚度及倾斜角度)对双套管式相变储热罐蓄热性能的影响。结果表明:随着翅片长度从1.0 m增加到1.2 m,相变熔盐的总熔化时间从8 h缩短到5 h;当翅片厚度从40 mm增加到60 mm时,相变熔盐的总熔化时间从10 h缩短至6 h左右,平均蓄热速率从1.3×108 kJ/h增加到14.8×108 kJ/h;当翅片角度为–15°时,储热罐内PCM的总熔化时间最短,平均蓄热速率最大,为14.3×108 kJ/h,对于本文双套管式PCM储热罐,最佳倾斜角度为–15°。研究结果可为用于太阳能光热电站的双套管式相变储热罐的设计提供依据。

PCM储热  /  储热罐  /  传热翅片  /  蓄热性能  /  太阳能电站

Heat transfer fins can be used to improve the operation performance of heat storage tanks using phase change filling material (PCM). Based on the COMSOL software, the effects of annular heat transfer fin's parameters (fin length, fin thickness and fin angle) on charging performance of a double-tube PCM heat storage tank is preliminarily evaluated. The results show that, when the fin length increases from 1.0 m to 1.2 m, the total melting time of the filling material shortens from 8 h to 5 h. When the fin thickness increases from 40 mm to 60 mm, the total melting time of the filling material decreases from 10 h to about 6 h, and the average charging rate increases from 11.3×108 kJ/h to 14.8×108 kJ/h. When the fin angle is –15°, the tank has the shortest total melting time and the maximum average charging rate, which is 14.3×108 kJ/h. For the double-tube PCM tank investigated in this study, the optimal fin angle is -15°. The results can provide basis for the design of double-tube PCM heat storage tanks for CSP plants.

PCM heat storage  /  heat storage tank  /  heat transfer fin  /  heat storage performance  /  solar power plant
王刚, 庞仕承, 姜铁骝. 环形翅片对用于太阳能光热电站的相变储热罐蓄热性能的影响. 热力发电, 2023 , 52 (2) : 39 -45 . DOI: 10.19666/j.rlfd.202208182
Gang WANG, Shicheng PANG, Tieliu JIANG. Effect of annular heat transfer fin on charging performance of heat storage tank using phase change material for solar thermal power plants[J]. Thermal Power Generation, 2023 , 52 (2) : 39 -45 . DOI: 10.19666/j.rlfd.202208182
  • 吉林省自然科学基金学科布局项目(20210101081JC)
2023年第52卷第2期
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doi: 10.19666/j.rlfd.202208182
  • 接收时间:2022-08-03
  • 首发时间:2026-01-23
  • 出版时间:2023-02-25
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  • 收稿日期:2022-08-03
基金
Natural Science Foundation of Jilin Province(20210101081JC)
吉林省自然科学基金学科布局项目(20210101081JC)
作者信息
    东北电力大学能源与动力工程学院,吉林 吉林 132012

通讯作者:

姜铁骝(1982),男,博士,副教授,主要研究方向为太阳能利用,
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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