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Effect analysis of heat transfer fluid parameters on charging and mechanical performance of TES tank using PCM capsules
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Gang WANG, Long BAI, Tieliu JIANG
Thermal Power Generation | 2023, 52(5) : 62 - 71
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Thermal Power Generation | 2023, 52(5): 62-71
• Thermal energy and science research •
Effect analysis of heat transfer fluid parameters on charging and mechanical performance of TES tank using PCM capsules
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Gang WANG, Long BAI, Tieliu JIANG
Affiliations
  • School of Energy and Power Engineering, Northeast Electric Power University, Jilin 132012, China
Published: 2023-05-25 doi: 10.19666/j.rlfd.202210236
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The effects of different heat transfer fluid (HTF) parameters on charging and mechanical performance of the thermal energy storage (TES) tank using phase change material (PCM) capsules are studied by employing the fluid-solid coupling calculation. The results show that, with the inlet HTF flow velocity increased from 0.000 7 m/s to 0.000 9 m/s, the total heat storage quantity is basically unchanged, the average charging power increases from 5.33 MW to 6.79 MW, and the peak maximum mechanical stress (MMS) of the tank wall decreases. When the initial cold HTF temperature decreases from 610 K to 530 K, the total heat storage quantity increases, the average charging power increases from 5.29 MW to 6.81 MW, but the peak MMS of the tank wall also increases. With the initial hot HTF temperature increases from 730 K to 810 K, the total heat storage quantity increases obviously, the average charging power increases from 3.81 MW to 7.97 MW, but the peak MMS also increases to 159.6 MPa. Hence, to improve the charging performance of the TES tank, on the premise of ensuring the structural safety of steel wall of the TES tank, the inlet HTF flow velocity and initial hot HTF temperature should be increased properly, and the initial cold HTF temperature should be reduced properly.

PCM capsule  /  TES tank  /  heat transfer fluid  /  charging performance  /  mechanical performance
Gang WANG, Long BAI, Tieliu JIANG. Effect analysis of heat transfer fluid parameters on charging and mechanical performance of TES tank using PCM capsules[J]. Thermal Power Generation, 2023 , 52 (5) : 62 -71 . DOI: 10.19666/j.rlfd.202210236
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  • Natural Science Foundation of Jilin Province(20210101081JC)
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Year 2023 volume 52 Issue 5
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Article Info
doi: 10.19666/j.rlfd.202210236
  • Receive Date：2022-10-02
  • Online Date：2026-01-23
  • Published：2023-05-25
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  • Received：2022-10-02
Funding
Natural Science Foundation of Jilin Province(20210101081JC)
Affiliations
    School of Energy and Power Engineering, Northeast Electric Power University, Jilin 132012, 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
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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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