储能

Effect of Air Distribution on the Transport Characteristics of Solid Particles in the Thermal Storage and Release System of Circulating Fluidized Bed

  • JI Zengcai ,
  • SONG Guoliang ,
  • TANG Zihua ,
  • SUN Liwei
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  • 1. State Key Laboratory of Coal Conversion, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Dalian National Laboratory for Clean Energy, Dalian 116023, China

网络出版日期: 2024-07-15

基金资助

This work was financially supported by the “High efficiency and low nitrogen combustion technology and demonstration of coal-fired industrial boiler”, Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. Y82C0532G1).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2024

Effect of Air Distribution on the Transport Characteristics of Solid Particles in the Thermal Storage and Release System of Circulating Fluidized Bed

  • JI Zengcai ,
  • SONG Guoliang ,
  • TANG Zihua ,
  • SUN Liwei
Expand
  • 1. State Key Laboratory of Coal Conversion, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Dalian National Laboratory for Clean Energy, Dalian 116023, China

Online published: 2024-07-15

Supported by

This work was financially supported by the “High efficiency and low nitrogen combustion technology and demonstration of coal-fired industrial boiler”, Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. Y82C0532G1).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2024

摘要

固体颗粒储热技术具有时空调节的特性,能够有效解决因可再生能源大比例接入电网造成的时间、空间和能量强度上的热能供给与需求不匹配而引起的问题,从而最大程度地确保电力系统的安全稳定运行。为了研究循环流化床储放热系统中固体颗粒的输运调节特性,设计搭建了0.1 MWth实验平台,系统的研究了以双U阀为进料控制阀,U型阀为返料控制阀的固体颗粒输运结构在不同配风方式下的输运调节特性。结果表明,该输运结构能够有效完成循环流化床内储热固体颗粒的高效快速储放,双U阀的松动风和两侧返料风共同影响储灰仓进料速率,在控制进料速率时,应采取松动风粗调,两侧返料风细调的调控策略。U型阀的松动风和返料风共同影响储灰仓的返料速率,在控制返料速率时,应采取U型阀的松动风粗调,返料风细调的调控策略。

本文引用格式

JI Zengcai , SONG Guoliang , TANG Zihua , SUN Liwei . Effect of Air Distribution on the Transport Characteristics of Solid Particles in the Thermal Storage and Release System of Circulating Fluidized Bed[J]. 热科学学报, 2024 , 33(4) : 1554 -1563 . DOI: 10.1007/s11630-024-1902-7

Abstract

Solid particle heat storage technology offers a potential solution to the challenges posed by the significant growth of renewable energy sources, particularly in terms of grid security and stability. Consequently, it has the capability to optimize the energy utilization efficiency of the power system. In order to investigate the transport regulation characteristics of solid particles in the thermal storage and release system of a circulating fluidized bed (CFB), a test rig with a capacity of 0.1 MW (th) was established. This rig was utilized to systematically study the transport regulation characteristics of solid particles under the double U-type valve feed structure and U-type valve discharge structure. The experimental findings indicate that the system’s design enables efficient and rapid storage and release of solid particles in the CFB. The air distribution mode, specifically the double U-type valve feed structure and the U-type valve discharge structure, significantly influence the feed and discharge characteristics of the ash storage bin. It was observed that the impact of loose air on these characteristics is more substantial than that of the return air, irrespective of the feed structure or the return structure. When adjusting the feed and discharge rate, it is recommended to adopt a scheme that involves coarse adjustment through loose air and fine adjustment through return air.

参考文献

[1] Zhu G., Lv S., Jiang F., et al., Research on distribution performance of desert sand for heat storage in downcomer. International Journal of Green Energy, 2018, 15(2): 106–112.
[2] Kiwan S., Soud Q.R., Experimental investigation of the thermal performance of a sand-basalt heat storage system for beam-down solar concentrators. Case Studies in Thermal Engineering, 2020, 19: 100609.
[3] Diago M., Iniesta A.C., Soum-Glaude A., et al., Characterization of desert sand to be used as a high-temperature thermal energy storage medium in particle solar receiver technology. Applied Energy, 2018, 216: 402–413.
[4] Kang Q., Flamant G., Dewil R., et al., Particles in a circulation loop for solar energy capture and storage. Particuology, 2018, 43: 149–156.
[5] Knott R.C., Sadowski D.L., Jeter S.M., et al., High temperature durability of solid particles for use in particle heating concentrator solar power systems. ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology, 2014, Paper No: ES2014-6586.
[6] Calderón A., Barreneche C., Inés Fernández A., et al., Thermal cycling test of solid particles to be used in concentrating solar power plants. Solar Energy Materials and Solar Cells, 2021, 222: 110936.
[7] Sakadjian B., Hu S., Maryamchik M., et al., Fluidized-bed technology enabling the integration of high temperature solar receiver CSP systems with steam and advanced power cycles. Energy Procedia, 2015, 69: 1404–1411.
[8] Schwaiger K., Haider M., Active fluidization storage applications for CSP. Energy Procedia, 2014, 49: 973–982.
[9] Zhang H.L., Benoit H., Gauthier D., et al., Particle circulation loops in solar energy capture and storage: Gas-solid flow and heat transfer considerations. Applied Energy, 2016, 161: 206–224.
[10] Christen C.E., Gómez-Hernández J., Otanicar T.P., Bimodal particle distributions with increased thermal conductivity for solid particles as heat transfer media and storage materials. International Journal of Heat and Mass Transfer, 2022, 184: 122250.
[11] Yu Q., Yang Y.H., Wang Z.F., et al., Modeling and parameter sensitivity analysis of fluidized bed solid particle/sCO2 heat exchanger for concentrated solar power plant. Applied Thermal Engineering, 2021, 197: 117429.
[12] Hu F., Wang Z.F., Bai F.W., et al., Modeling study and experimental investigation of SPSR and solid particles-sCO2 heat exchanger for concentrating solar power plant. Energy Reports, 2022, 8(13): 1415–1423.
[13] Du J.W., Gao Y., Wu J.Z., et al., Physical property design of multi-component particle systems as heat transfer medium for directly irradiated solar receiver. Applied Thermal Engineering, 2023, 219: 119470.
[14] Khan M.I., Asfand F., Al-Ghamdi S.G., Progress in technology advancements for next generation concentrated solar power using solid particle receivers. Sustainable Energy Technologies and Assessments, 2022, 54: 102813.
[15] Haider M., Schwaiger K., Holzleithner F., et al., A comparison between passive regenerative and active fluidized bed thermal energy storage systems. Journal of Physics Conference, 2012, 395: 012053.
[16] Ma Z., Glatzmaier G.C., Mehos M., Development of solid particle thermal energy storage for concentrating solar power plants that use fluidized bed technology. Energy Procedia, 2014, 49: 898–907.
[17] Ma Z., Glatzmaier G., Mehos M., Fluidized bed technology for concentrating solar power with thermal energy storage. Journal of Solar Energy Engineering, 2014, 136(3): 031014.
[18] Calderón A., Palacios A., Barreneche C., et al., High temperature systems using solid particles as TES and HTF material: A review. Applied Energy, 2018, 213: 100–111.
[19] Calderón A., Barreneche C., Palacios A., et al., Review of solid particle materials for heat transfer fluid and thermal energy storage in solar thermal power plants. Energy Storage, 2019, 1(4): e63.
[20] Steiner P., Schwaiger K., Walter H., et al., Fluidized bed particle heat exchanger for supercritical carbon dioxide power cycles. ASME International Mechanical Engineering Congress & Exposition, 2016, Paper No: IMECE2016-67104.
[21] Steiner P., Schwaiger K., Walter H., et al., Active fluidized bed technology used for thermal energy storage. ASME International Conference on Energy Sustainability Collocated with the ASME Power Conference & the ASME International Conference on Fuel Cell Science, 2016, Paper No: ES2016-59053.
[22] Schwaiger K., Haider M., Hämmerle M., et al., SandTES —An active thermal energy storage system based on the fluidization of powders. Energy Procedia, 2014, 49: 983–992.
[23] Schwaiger K., Haider M., Haemmerle M., et al., Fluidized bed steam generators for direct particle absorption CSP-plants. Energy Procedia, 2015, 69: 1421–1430.
[24] Zhang H., Lyu J.F., Yue G.X., A review on research and development of CFB combustion technology in China. Powder Technology, 2023, 414: 118090.
[25] Xiao Y., Song G.L., Yang Z., et al., Application of post-combustion ultra-low NOx emissions technology on coal slime solid waste circulating fluidized bed boilers. Waste Management, 2022, 137: 72–80.
[26] Yan J., Lu X., Zheng X., et al., Enhanced combustion behavior and NOx reduction performance in a CFB combustor by combining flue gas recirculation with air-staging: Effect of injection position. Journal of Energy Institute, 2021, 96: 294–309.
[27] Song G., Yang X., Yang Z., et al., Experimental study on ultra-low initial NOx emission characteristics of Shenmu coal and char in a high temperature CFB with post-combustion. Journal of Energy Institute, 2021, 94: 310–318.
[28] Cheng L., Ji J., Wei Y., et al., A note on large-size supercritical CFB technology development. Powder Technology, 2020, 363: 398–407.
[29] Li L.Y., Cheng L.M., Wang B., et al., Role of carbide slag addition on NO emission characteristics during coal combustion. Fuel, 2023, 331: 125984.
[30] Xiao Y., Song G.L., Song W.J., et al., Influence of feeding position and post-combustion air arrangement on NOx emission from circulating fluidized bed combustion with post-combustion. Fuel, 2020, 269: 117394.
[31] Liu Y.H., Liu J.Z., Lyu Q.G., et al., Comparison of oxy-fuel preheated combustion characteristics of high- and low- volatility carbon-based fuels. Fuel, 2022, 330: 125583.
[32] Ke X.W., Zhu S.H., Huang Z., et al., Issues in deep peak regulation for circulating fluidized bed combustion: Variation of NOx emissions with boiler load. Environmental Pollution, 2023, 318: 120912.
[33] Zhang H.F., Gao M.M., Yue G.X., et al., Dynamic model for subcritical circulating fluidized bed boiler-turbine units operated in a wide-load range. Applied Thermal Engineering, 2022, 213: 118742.
[34] Tang Z.H., Song G.L., Yang X.T., et al., Research on combustion and emission characteristics of circulating fluidized bed during load changes. Journal of the Energy Institute, 2022, 105: 334–341.
[35] Zhu S.J., Hui J.C., Lyu Q.G., et al., Experimental study on pulverized coal combustion preheated by a circulating fluidized bed: Preheating characteristics for peak shaving. Fuel, 2022, 324: 124684.
[36] Gao M., Hong F., Liu J., Investigation on energy storage and quick load change control of subcritical circulating fluidized bed boiler units. Applied Energy, 2017, 185: 463–471.
[37] Ji Z, Song G, Tang Z, et al., Effect of structural characteristics on the transport characteristics of solid particles in the thermal storage and release system of circulating fluidized bed. Particuology, 2024, 89: 22–31.
[38] Kim D., Won Y., Hwang B.W., et al., Loop-seal flow characteristics of a circulating fluidized bed for 3 MWth scale chemical looping combustion system. Energy, 2023, 274: 127271.
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