EXPERIMENTAL INVESTIGATION ON HEAT TRANSFER CHARACTERISTIC OF MOLTEN SALT FLOW ACROSS VAPOR-LIQUID TWO-PHASE FLOW IN TUBE

Dong Xinyu, Zhang Shulei, Zhang Yuxuan, Liu Lu

Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (7) : 241-247.

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (7) : 241-247. DOI: 10.19912/j.0254-0096.tynxb.2022-0442

EXPERIMENTAL INVESTIGATION ON HEAT TRANSFER CHARACTERISTIC OF MOLTEN SALT FLOW ACROSS VAPOR-LIQUID TWO-PHASE FLOW IN TUBE

  • Dong Xinyu, Zhang Shulei, Zhang Yuxuan, Liu Lu
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Abstract

A binary mixture solar salt was used as a working fluid to experimentally study the heat transfer characteristics of molten salt and vapor-liquid two-phase flow in a shell-tube heat exchanger. The impact of solar salt mass flow rate, solar salt inlet temperature, water pressure, water mass flow rate and water dryness on the heat transfer characteristics of the heat exchanger is analyzed. Among them, the molten salt inlet temperature and water dryness have a great impact on the heat transfer characteristics.

Key words

CSP / molten salt / vapor-liquid two-phase flow / shell-tube heat exchanger / heat transfer characteristics

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Dong Xinyu, Zhang Shulei, Zhang Yuxuan, Liu Lu. EXPERIMENTAL INVESTIGATION ON HEAT TRANSFER CHARACTERISTIC OF MOLTEN SALT FLOW ACROSS VAPOR-LIQUID TWO-PHASE FLOW IN TUBE[J]. Acta Energiae Solaris Sinica. 2023, 44(7): 241-247 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0442

References

[1] 董新宇. 高温熔盐热交换器实验台设计搭建及相关研究[D]. 西安: 西安建筑科技大学, 2016.
DONG X Y.Study on the design and construction of high-temperature molten salt heat exchanger and related research[D]. Xi’an: Xi’an University of Architecture & Technology, 2016.
[2] AMBROSEK J W.Molten chloride salts for heat transfer in nuclear systems[M]. Madison: The University of Wisconsin-Madison ProQuest Dissertation Publishing,2011.
[3] 董新宇, 姚凡, 毕勤成. 熔融盐-亚临界汽/水传热性能实验分析[J]. 中国电机工程学报, 2018, 38(15): 4467-4473, 4647.
DONG X Y, YAO F, Bi Q C.Experimental investigation of heat transfer performance of solar molten salt and subcritical water/steam[J]. Proceedings of the CSEE, 2018, 38(15): 4467-4473, 4647.
[4] WU Y T, LIU B, MA C F, et al.Convective heat transfer in the laminar-turbulent transition region with molten salt in a circular tube[J]. Experimental thermal and fluid science, 2009, 33(7): 1128-1132.
[5] LIU B, WU Y T, MA C F, et al.Turbulent convective heat transfer with molten salt in a circular pipe[J]. International communications in heat and mass transfer, 2009, 36(9): 912-916.
[6] WU Y T, CHEN C, LIU B, et al.Investigation on forced convective heat transfer of molten salts in circular tubes[J]. International communications in heat and mass transfer, 2012, 39(10): 1550-1555.
[7] SRIVASTAVA A K, VAIDYA A M, MAHESHWARI N K, et al.Heat transfer and pressure drop characteristics of molten fluoride salt in circular pipe[J]. Applied thermal engineering, 2013, 61(2): 198-205.
[8] LU J F, HE S Q, LIANG J M, et al.Convective heat transfer in the laminar-turbulent transition region of molten salt in annular passage[J]. Experimental thermal and fluid science, 2013, 51: 71-76.
[9] DONG X Y, BI Q C, YAO F.Experimental investigation on heat transfer performance of solar salt flowing in an annular tube[J]. Experimental thermal and fluid science, 2019, 102: 113-122.
[10] DONG X Y, BI Q C, CHENG X, et al.Convective heat transfer performance of solar salt in an inclined circular tube[J]. Applied thermal engineering, 2020, 178: 115349.
[11] 常春, 张强强, 李鑫. 周向非均匀热流边界条件下太阳能高温吸热管内湍流传热特性研究[J]. 中国电机工程学报, 2012, 32(17): 104-109.
CHANG C,ZHANG Q Q,LI X.Turbulent heat transfer characteristics in solar thermal absorber tubes with circumferentially non-uniform heat flux boundary condition[J]. Proceedings of the CSEE, 2012, 32(17): 104-109.
[12] 常春, 李石栋, 李鑫, 等. 周向非均匀热流边界条件下混合熔融盐在太阳能高温吸热管内的强化换热研究[J]. 中国电机工程学报, 2014, 34(20): 3341-3346.
CHANG C, LI S D, LI X, et al.Enhanced heat transfer characteristics of molten salt in solar thermal absorber tubes with circumferentially non-uniform heat flux boundary condition[J]. Proceedings of the CSEE, 2014, 34(20): 3341-3346.
[13] HE S Q, LU J F, DING J, et al.Convective heat transfer of molten salt outside the tube bundle of heat exchanger[J]. Experimental thermal and fluid science, 2014, 59: 9-14.
[14] LU J F, HE S Q, DING J, et al.Convective heat transfer of high temperature molten salt in a vertical annular duct with cooled wall[J]. Applied thermal engineering, 2014,73(2): 1519-1524.
[15] QIAN J, KONG Q L, ZHANG H W, et al.Experimental study for shell-and-tube molten salt heat exchangers[J]. Applied thermal engineering, 2017, 124: 616-623.
[16] HE Y L, ZHENG Z J, DU B C, et al.Experimental investigation on turbulent heat transfer characteristics of molten salt in a shell-and-tube heat exchanger[J]. Applied thermal engineering, 2016, 108: 1206-1213.
[17] DU B C, HE Y L, QIU Y, et al.Investigation on heat transfer characteristics of molten salt in a shell-and-tube heat exchanger[J]. International communications in heat and mass transfer, 2018, 96: 61-68.
[18] DU B C, HE Y L, WANG K, et al.Convective heat transfer of molten salt in the shell-and-tube heat exchanger with segmental baffles[J]. International journal of heat and mass transfer, 2017, 113: 456-465.
[19] QIAN J, KONG Q L, ZHANG H W, et al.Performance of a gas cooled molten salt heat exchanger[J]. Applied thermal engineering, 2018, 124: 1429-1435.
[20] QIU Y, LI M J, WANG W Q, et al.An experimental study on the heat transfer performance of a roto type molten-salt rod baffle heat exchanger for concentrated solar power[J]. Energy, 2018, 156: 63-72.
[21] YUAN Y B, HE C M, LU J F, et al.Thermal performances of molten salt steam generator[J]. Applied thermal engineering, 2016, 105: 163-169.
[22] ZOU Y K, DING J, WANG W L, et al.Heat transfer performance of U-tube molten salt steam generator[J]. International journal of heat and mass transfer, 2020, 160: 120200.
[23] LU J F, ZHENG L, ZOU Y K, et al.Experimental thermal performance study of molten salt steam generator-superheater with saturated water[J]. International journal of heat and mass transfer, 2021, 168: 120884.
[24] YAO F, BI Q C, DONG X Y.Convective heat transfer of high temperature molten salt flowing across tube bundles of steam generator in a solar thermal plant[J]. Applied thermal engineering, 2018,141: 858-865.
[25] DONG X Y, BI Q C, JIANG J L,et al.Experimental investigation on the shell-side thermal performance of molten salt steam generators[J]. International journal of heat and mass transfer, 2020, 158: 119991.
[26] 董新宇, 毕勤成, 姜梦雨. 熔盐在套管换热器中传热特性实验研究[J]. 中国电机工程学报, 2021, 41(19): 6670-6679.
DONG X Y, BI Q C, JIANG M Y.Experimental investigation of heat transfer performance of molten salt in double-pipe heat exchanger[J]. Proceedings of the CSEE, 2021, 41(19): 6670-6679.
[27] 庞力平, 张世刚, 段立强. 高温熔盐储能提高二次再热机组灵活性研究[J]. 中国电机工程学报, 2021, 41(8): 2682-2691.
PANG L P, ZHANG S G, DUAN L Q.Flexibility improvement study on the double reheat power generation unit with a high temperature molten salt thermal energy storage[J]. Proceedings of the CSEE, 2021, 41(8): 2682-2691.
[28] 潘杰, 杨冬, 朱探, 等. 亚临界及近临界压力区低质量流速垂直内螺纹管传热特性试验研究[J]. 中国电机工程学报, 2010, 30(11): 79-85.
PAN J, YANG D, ZHU T, et al.Experimental investigation on heat transfer characteristics of vertical rifled tube at low mass flux under subcritical and near critical pressure[J]. Proceedings of the CSEE, 2010, 30(11): 79-85.
[29] KLINE S J, MCLINTOCK F A.Describing uncertainties in single-sampleexperiments[J]. Mechanical engineering, 1953, 75: 3-8.
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