单侧加热方形通道内超临界水传热研究

doi:10.11949/0438-1157.20211532

摘要/Abstract

摘要：

数值模拟了辅助冷却剂超临界水在单侧加热方形通道中的流动传热特性，从边界层厚度与近壁区湍动能两方面阐述传热恶化产生和恢复的机理。研究了不同工况（压力、入口温度、热通量、质量流量、流动方向和管径）下超临界流体常用传热关联式的适用性，发现Fan关联式预测精度较高。采用PEC因子对不同强化传热结构（双通道和凹槽）进行评价，发现上下双通道PEC因子普遍小于1，综合强化换热效果不佳，而偏下游的非对称倒角凹槽结构PEC因子为1.13~1.51，不同工况下均为最大值。场协同原理分析也证明偏下游的非对称倒角凹槽结构具有最佳的综合换热性能。

关键词: 数值模拟, 超临界水, 传热, 关联式, 强化结构

Abstract:

The heat transfer of supercritical water in a side-heated square channel with auxiliary coolant is numerically investigated, and the mechanisms of heat transfer deterioration and recovery are explained in terms of boundary layer thickness and turbulent kinetic energy in the near-wall region. The heat transfer correlations for supercritical water heat transfer in a side-heated square channel under different conditions (pressure, inlet temperature, heat flux, mass flow, flow direction and pipe diameter) are examined and the Fan correlation achieves the highest prediction agreement. The PEC factor is employed to evaluate different enhanced heat transfer structures (dual channels and grooves). It is found that the PEC factor of upper and lower dual channel is generally less than 1, and the overall heat transfer enhancement is low. The PEC factor of the downstream asymmetric chamfered groove is in the range of 1.13—1.51, and the maximum value is achieved under different working conditions. The field synergy analysis also proves that the down stream asymmetric chamfered groove structure has the best comprehensive heat transfer performance.

Key words: numerical simulation, supercritical water, heat transfer, correlation, enhanced structure

中图分类号:

TK 121

黄志豪, 李光熙, 唐桂华, 李小龙, 范元鸿. 单侧加热方形通道内超临界水传热研究[J]. 化工学报, 2022, 73(4): 1523-1533.

Zhihao HUANG, Guangxi LI, Guihua TANG, Xiaolong LI, Yuanhong FAN. Numerical investigation on heat transfer of supercritical water in a side-heated square channel[J]. CIESC Journal, 2022, 73(4): 1523-1533.

图/表 14

图1 方形通道示意图

Fig.1 Schematic of square channel

图2 凹槽结构示意图

Fig.2 Schematic of grooves

表1 计算工况参数

Table 1 Conditions of numerical simulation

Case	P/ MPa	G/ (kg·m^-2·s^-1)	q_w/ (kW·m^-2)	D/ mm	T_in/ K	流向
1	23	500	1000	8	573	向上
2	23	500	200	8	573	向上
3	25	500	1000	8	573	向上
4	28	500	1000	8	573	向上
5	23	500	1000	8	373	向上
6	23	500	1000	8	673	向上
7	23	200	1000	8	573	向上
8	23	1000	1000	8	573	向上
9	23	1500	1000	8	573	向上
10	23	500	1000	30	573	向上
11	23	500	1000	25	573	向上
12	23	500	1000	20	573	向上
13	23	500	1000	15	573	向上
14	23	500	1000	10	573	向上
15	23	500	1000	2	573	向上
16	23	500	1000	8	573	水平
17	23	500	1000	8	573	向下

图3 实验结果与数值模拟结果的比较

Fig.3 Comparison between available experimental and present numerical results

图4 竖直向上与无重力流动内壁面h/hDB沿程变化

Fig.4 h/hDB on the inner wall with and without gravity

图5 边界层厚度的影响

Fig.5 Effect of boundary layer thickness

图6 近壁区湍动能的影响

Fig.6 Effect of near-wall turbulent kinetic energy

图7 关联式计算与数值模拟结果的比较

Fig.7 Comparison between the correlations and present numerical results

图8 加热底面平均温度随加热长度的变化

Fig.8 Average temperature on the heated surface against heating length

图9 不同强化换热结构的Nu/Nu0

Fig.9 Nu/Nu0 of different enhanced structures

图10 不同强化换热结构的PEC

Fig.10 PEC of different enhanced structures

图11 凹槽附近剖面流线图

Fig.11 Streamlines around various grooves

图12 凹槽附近的协同角β云图

Fig.12 Distribution of synergy angle β around various grooves

图13 凹槽附近的协同角α云图

Fig.13 Distribution of synergy angle α around various grooves

参考文献 32

1	陈玮玮, 方贤德, 鹿世化, 等. 飞行器燃料再生冷却热管理系统参数设计[J]. 化工学报, 2020, 71(S1): 204-211.
	Chen W W, Fang X D, Lu S H, et al. Parameter design of aircraft fuel regeneration cooling thermal management system[J]. CIESC Journal, 2020, 71(S1): 204-211.
2	Shang Z, Chen S. Numerical investigation of diameter effect on heat transfer of supercritical water flows in horizontal round tubes[J]. Applied Thermal Engineering, 2011, 31(4): 573-581.
3	范辰浩, 王海军, 宋子琛, 等. 小管径超临界流体传热恶化特性研究[J]. 工程热物理学报, 2018, 39(9): 2032-2039.
	Fan C H, Wang H J, Song Z C, et al. Investigation on heat transfer deterioration characteristics of supercritical fluid in small diameter tube[J]. Journal of Engineering Thermophysics, 2018, 39(9): 2032-2039.
4	Wang H, Wang S Q, Lu D G. Large eddy simulation on the heat transfer of supercritical pressure water in a circular pipe[J]. Nuclear Engineering and Design, 2021, 377: 111146.
5	Bai J H, Pan J, Wu G, et al. Numerical investigation on the heat transfer of supercritical water in non-uniform heating tube[J]. International Journal of Heat and Mass Transfer, 2019, 138: 1320-1332.
6	Gao Z G, Bai J H. Numerical analysis on nonuniform heat transfer of supercritical pressure water in horizontal circular tube[J]. Applied Thermal Engineering, 2017, 120: 10-18.
7	潘杰, 杨冬, 朱探, 等. 超临界压力水在垂直上升内螺纹管中的传热特性[J]. 化工学报, 2011, 62(2): 307-314.
	Pan J, Yang D, Zhu T, et al. Heat transfer characteristics of supercritical pressure water in vertical upward rifled tube[J]. CIESC Journal, 2011, 62(2): 307-314.
8	曲默丰, 梁梓宇, 赵云杰, 等. 低质量流速光管内超超临界水传热特性的实验与数值模拟[J]. 西安交通大学学报, 2018, 52(7): 52-59.
	Qu M F, Liang Z Y, Zhao Y J, et al. Experimental and numerical investigation on heat transfer characteristics of ultra-supercritical water in smooth tube with low mass flux[J]. Journal of Xi'an Jiaotong University, 2018, 52(7): 52-59.
9	曲默丰, 李娟, 董乐, 等. 半周加热内螺纹管中超临界水传热特性的数值模拟及机理分析[J]. 动力工程学报, 2019, 39(11): 893-899.
	Qu M F, Li J, Dong L, et al. Numerical simulation and mechanism analysis of heat transfer to supercritical water in semi-circumferentially heated ribbed tubes[J]. Journal of Chinese Society of Power Engineering, 2019, 39(11): 893-899.
10	Lei X L, Li H X, Yu S Q, et al. Numerical investigation on the mixed convection and heat transfer of supercritical water in horizontal tubes in the large specific heat region[J]. Computers & Fluids, 2012, 64: 127-140.
11	Sahu S, Vaidya A M. Numerical study of enhanced and deteriorated heat transfer phenomenon in supercritical pipe flow[J]. Annals of Nuclear Energy, 2020, 135: 106966.
12	Gu H Y, Zhao M, Cheng X. Experimental studies on heat transfer to supercritical water in circular tubes at high heat fluxes[J]. Experimental Thermal and Fluid Science, 2015, 65: 22-32.
13	Schatte G A, Kohlhepp A, Wieland C, et al. Development of a new empirical correlation for the prediction of the onset of the deterioration of heat transfer to supercritical water in vertical tubes[J]. International Journal of Heat and Mass Transfer, 2017, 113: 1333-1341.
14	梁梓宇, 万李, 李娟, 等. 并联双通道内超临界水的脉动传热特性[J]. 化工学报, 2019, 70(7): 2488-2495.
	Liang Z Y, Wan L, Li J, et al. Oscillatory heat transfer characteristics of supercritical water in parallel channels[J]. CIESC Journal, 2019, 70(7): 2488-2495.
15	Hao X H, Xu P X, Suo H, et al. Numerical investigation of flow and heat transfer of supercritical water in the water-cooled wall tube[J]. International Journal of Heat and Mass Transfer, 2020, 148: 119084.
16	Li F B, Bai B F. A model of heat transfer coefficient for supercritical water considering the effect of heat transfer deterioration[J]. International Journal of Heat and Mass Transfer, 2019, 133: 316-329.
17	张鑫, 刘朝晖, 毕勤成, 等. 倾斜内螺纹管中亚临界及超临界水传热特性研究[J]. 化工学报, 2021, 72(2): 945-955.
	Zhang X, Liu Z H, Bi Q C, et al. Investigation on heat transfer characteristics of subcritical and supercritical water in an inclined rifled tube[J]. CIESC Journal, 2021, 72(2): 945-955.
18	王为术, 路统, 赵鹏飞, 等. 超临界水冷堆类四边形子通道内超临界水的传热试验研究[J]. 中国电机工程学报, 2014, 34(20): 3356-3361.
	Wang W S, Lu T, Zhao P F, et al. Experimental investigation on heat transfer of supercritical pressure water flowing in the sub-channel with square distribution in supercritical water cooled reactor[J]. Proceedings of the CSEE, 2014, 34(20): 3356-3361.
19	王为术, 侯彦亮, 徐维晖, 等. 超临界水冷堆类三角形子通道传热不均匀性研究[J]. 核动力工程, 2018, 39(3): 33-39.
	Wang W S, Hou Y L, Xu W H, et al. Investigation on nonuniformity of heat transfer in triangular subchannels of supercritical water cooled reactor[J]. Nuclear Power Engineering, 2018, 39(3): 33-39.
20	徐维晖, 朱晓静, 王为术, 等. 超临界水在垂直上升类矩形通道内传热与阻力特性试验研究[J]. 中国电机工程学报, 2017, 37(3): 819-826.
	Xu W H, Zhu X J, Wang W S, et al. Experimental study on the heat transfer and flow resistance characteristics of supercritical water in a vertical quasi-quadrilateral channel[J]. Proceedings of the CSEE, 2017, 37(3): 819-826.
21	朱海雁, 闫晓, 李永亮, 等. 带螺旋肋片方环形通道内超临界水传热特性实验研究[J]. 核动力工程, 2017, 38(6): 18-22.
	Zhu H Y, Yan X, Li Y L, et al. Experimental research on heat transfer of supercritical water in square annular channel[J]. Nuclear Power Engineering, 2017, 38(6): 18-22.
22	Yamagata K, Nishikawa K, Hasegawa S, et al. Forced convective heat transfer to supercritical water flowing in tubes[J]. International Journal of Heat and Mass Transfer, 1972, 15(12): 2575-2593.
23	Koshizuka S, Takano N, Oka Y. Numerical analysis of deterioration phenomena in heat transfer to supercritical water[J]. International Journal of Heat and Mass Transfer, 1995, 38(16): 3077-3084.
24	Winterton R H S. Where did the Dittus and Boelter equation come from? [J]. International Journal of Heat and Mass Transfer, 1998, 41(4/5): 809-810.
25	Fan Y H, Tang G H. Numerical investigation on heat transfer of supercritical carbon dioxide in a vertical tube under circumferentially non-uniform heating[J]. Applied Thermal Engineering, 2018, 138: 354-364.
26	Gupta S, Saltanov E, Mokry S J, et al. Developing empirical heat-transfer correlations for supercritical CO₂ flowing in vertical bare tubes[J]. Nuclear Engineering and Design, 2013, 261: 116-131.
27	Mokry S, Pioro I, Farah A, et al. Development of supercritical water heat-transfer correlation for vertical bare tubes[J]. Nuclear Engineering and Design, 2011, 241(4): 1126-1136.
28	Jackson J D. Consideration of the heat transfer properties of supercritical pressure water in connection with the cooling of advanced nuclear reactors[C]//Proceedings of the 13th Pacific Basin Nuclear Conference. Shenzhen, 2002.
29	Bishop A A, Sandberg R O, Tong L S. Forced convection heat transfer to water at near-critical temperatures and super-critical pressures[R]. Pittsburgh, PA, USA: Westinghouse Electric Corporation, 1964.
30	Kim D E, Kim M H. Experimental investigation of heat transfer in vertical upward and downward supercritical CO₂ flow in a circular tube[J]. International Journal of Heat and Fluid Flow, 2011, 32(1): 176-191.
31	Fan Y H, Tang G H, Li X L, et al. Correlation evaluation on circumferentially average heat transfer for supercritical carbon dioxide in non-uniform heating vertical tubes[J]. Energy, 2019, 170: 480-496.
32	Guo Z Y, Li D Y, Wang B X. A novel concept for convective heat transfer enhancement[J]. International Journal of Heat and Mass Transfer, 1998, 41(14): 2221-2225.

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