Numerical simulation of pulsating heat pipes with two-bends in different structures

doi:10.11949/0438-1157.20190520

Abstract

Abstract:

The pulsating heat pipe (PHP) has achieved remarkable results in heat dissipation field of electronic devices for its unique advantages in heat transfer. Therefore, this paper proposed a novel saw-tooth corrugated structure PHP with two-bends. Besides, the impact of arrangement position of saw-tooth corrugated section on the operation performance of PHP was investigated by numerical simulation. The results indicate that the heat transfer performance and start-up characters of saw-tooth corrugated PHP are much better than that with traditional structure of PHP. Additionally, the PHP has the lowest start-up timing with the serrated corrugated section in both ends of the heat pipe. Especially, the novel structure PHP with serrated corrugated part in condensation section has lower thermal resistance and higher heat exchange. Thus, it could conclude that the novel saw-tooth corrugated PHP has the best operation performance as new structure is arranged in condensation section.

Key words: mass transfer, multiphase flow, numerical simulation, optimization, phase change, pulsating heat pipe

摘要：

脉动热管以其独特的换热优势，在电子器件的散热领域取得了卓越的成效。因此提出一种带有锯齿波纹段的两弯头新型脉动热管，并采用数值方法研究了波纹段的布置位置对脉动热管运行性能的影响。结果表明新结构脉动热管的传热性能和启动特性都优于传统结构的脉动热管。此外，当锯齿段布置在热管两端时，具有较短的启动时间，尤其位于冷凝段时锯齿型脉动热管具有更低的温差和最大的换热量。因此可以认为当波纹段位于冷凝段时，新结构脉动热管具有最优的运行特性。

关键词: 传质, 多相流, 数值模拟, 优化, 相变, 脉动热管

CLC Number:

TK 174.2

Erhui JIANG, Dongwei ZHANG, Junjie ZHOU, Chao SHEN, Xinli WEI. Numerical simulation of pulsating heat pipes with two-bends in different structures[J]. CIESC Journal, 2019, 70(S2): 244-249.

蒋二辉, 张东伟, 周俊杰, 沈超, 魏新利. 不同结构下两弯头脉动热管的数值模拟[J]. 化工学报, 2019, 70(S2): 244-249.

Figures/Tables 5

Fig.1 Diagram of heat pipe

Fig.2 Water-vapor contours of different structures

Fig.3 Evaporation section average temperature of different structures

Fig.4 Temperature difference of different structures

Fig.5 Heat transfer efficiency of different structures

References 31

1	何江, 苗建印, 张红星, 等. 航天器深低温热管技术研究现状及发展趋势[J]. 真空与低温, 2018, 24(1): 1-8.
	HeJ, MiaoJ Y, ZhangH X, et al. Current status and development trend of cryogenic heat pipe technologies in spacecraft[J]. Vacuum and Cryogenics, 2018, 24(1): 1-8.
2	AkachiH, MiyazakiY. Stereo type heat lane heat sink[C]//10th International Heat Pipe Conference. Germany, 1997.
3	KhandekarS, GrollM, LuckchouraV. An introduction to pulsating heat pipe[J]. Electronics Cooling, 2003, 9 (2): 38-41.
4	XuJ L, LiY X, WongT Y. High speed flow visualization of a closed loop pulsating heat pipe[J]. International Journal of Heat Mass Transfer, 2005, (48): 3338-3351.
5	ShafiiM B, FaghriA, ZhangY. Thermal modeling of unlooped and looped pulsating heat pipe[J]. Journal of Heat Transfer, 2001, 123(6): 1159-1172.
6	李孝军, 屈健, 韩新月, 等. 微槽道脉动热管的启动及传热特性[J]. 化工学报, 2016, 67(6): 2263-2270.
	LiX J, QuJ, HanX Y, et al. Start-up and heat transfer performance of micro-grooved oscillating heat pipe[J]. CIESC Journal, 2016, 67(6): 2263-2270.
7	孙芹, 屈健, 袁建平. 等截面和变截面通道硅基微型脉动热管传热特性比较[J]. 化工学报, 2017, 68(5): 1803-1810.
	SunQ, QuJ, YuanJ P. Heat transfer performance comparison of silicon-based micro oscillating heat pipes with and without expanding channels[J]. CIESC Journal, 2017, 68(5): 1803-1810.
8	HanH, CuiX Y, ZhuY, et al. A comparative study of the behavior of working fluids and their properties on the performance of pulsating heat pipes(PHP)[J]. International Journal of Thermal Science, 2014, (82): 138-147.
9	屈健, 彭友权, 孙芹. 带平板蒸发器的紧凑型三维脉动热管传热特性[J]. 化工学报, 2018, 69(7): 2899-2907.
	QuJ, PengY Q, SunQ. Heat transfer performance of three-dimensional oscillating heat pipe with flat-plate evaporator[J]. CIESC Journal, 2018, 69(7): 2899-2907.
10	郑开明, 徐荣吉, 王瑞祥, 等. 工质表面张力和黏度对脉动热管启动及传热热阻的影响[J]. 化工进展, 2017, 36(8): 2816-2821.
	ZhengK M, XuR J, WangR X, et al. Influence of surface tension and viscosity on the start-up time and thermal resistance of pulsating heat pipe[J]. Chemical Industry and Engineering Progress, 2017, 36(8): 2816-2821.
11	朱悦, 崔晓钰, 韩华, 等. 水、丙酮混合工质振荡热管传热性能[J]. 化工学报, 2014, 65(8): 2940-2947.
	ZhuY, CuiX Y, HanH, et al. Heat transfer performance of pulsating heat pipes with water-acetone mixtures[J]. CIESC Journal, 2014, 65(8): 2940-2947.
12	KangS W, WangY C, LiuY C, et al. Visualization and thermal resistance measurements for a magnetic nanofluid pulsating heat pipe[J]. Applied Thermal Engineering, 2017, (126): 1044-1050.
13	纪玉龙, 庾春荣, 张庆振, 等. 表面浸润程度对脉动热管传热性能的影响[J]. 化工学报, 2017, 68(S1): 141-149.
	JiY L, YuC R, ZhangQ Z, et al. Effect of surface wettability on heat transfer performance of oscillating heat pipe[J]. CIESC Journal, 2017, 68(S1): 141-149.
14	LiangG, MudawarI. Review of pool boiling enhancement by surface modification[J]. International Journal of Heat and Mass Transfer, 2019, 128: 892-933.
15	TakataY, HidakaS, CaoJ M, et al. Effect of surface wettability on boiling and evaporation[J]. Energy, 2005, (30): 209-220.
16	赵楠楠, 付本威, 马鸿斌, 等. 超声波对脉动热管传热影响的实验研究[J]. 工程热物理学报, 2015, (4): 829-932.
	ZhaoN N, FuB W, MaH B, et al. Experimental study of ultraosound effect on the oscillating heat pipe[J]. Journal of Engineering Thermophysics, 2015, (4): 829-932.
17	ZhaoN, ZhaoD, MaH B. Ultrasonic effect on the startup of an oscillating heat pipe[J]. Journal of Heat Transfer, 2013, 135(7): 074503.
18	XianH Z, XuW J, ZhangY N, et al. Experimental investigations of dynamic ﬂuid ﬂow in oscillating heat pipe under pulse heating[J]. Applied Thermal Engineering, 2015, (88): 376-383.
19	徐德好, 陈陶菲. 机械振动对脉动热管传热性能影响实验研究[J]. 现代雷达, 2015, 37(4): 81-84.
	XuD H, ChenT F. Experimental study on the heat transfer performance of PHP under vibration[J]. Modern Radar, 2015, 37(4): 81-84.
20	RidouaneE H, ChristopherM D, DarrenL H. A 2-D numerical study of chaotic flow in a nature convection loop[J]. International Journal of Heat and Mass Transfer, 2010, (53): 76-84.
21	LouisosW F, HittD L, DanforthC M. Chaotic flow in a 2D nature convection loop with heat flux boundaries[J]. International Journal of Heat and Mass Transfer, 2013, (61): 565-576.
22	刘建红, 邓涛, 白俊超, 等. 脉动热管激励机制强化传热数值研究[J]. 科技创新与应用, 2018, (4): 32-33.
	LiuJ H, DengT, BaiJ C, et al. Numerical study on the heat transfer enhancement of excitation mechanism of pulsating heat pipes[J]. Technology Innovation and Application, 2018, (4): 32-33.
23	林梓荣. 自激式振荡热管热输送性能研究[D]. 广州: 华南理工大学, 2012.
	LinZ R. Study on heat transfer performance of self-excited oscillation heat pipe[D]. Guangzhou: South China University of Technology, 2012.
24	王迅, 刘梦阳, 王盼, 等. 变管径单回路脉动热管传热特性数值研究[J]. 化学工程, 2018, 46(9): 32-36.
	WangX, LiuM Y, WangP, et al. Numerical simulation on heat transfer characteristics of a single-loop pulsating heat pipe with variable diameters [J]. Chemical Engineering (China), 2018, 46(9): 32-36.
25	汪健生, 马赫. 蒸发/冷凝段长度比对脉动热管性能的影响[J]. 化工进展, 2015, 34(11): 3846-3851.
	WangJ S, MaH. Influences of the ratio of evaporation section length to condensation section length on the performance of pulsating heat pipe[J]. Chemical Industry and Engineering Progress, 2015, 34(11): 3846-3851.
26	PouryoussefiS M, ZhangY W. Numerical investigation of chaotic flow in a 2D closed-loop pulsating heat pipe[J]. Applied Thermal Engineering, 2016, (98): 617-627.
27	TiwariM, DiwakarN. Experimental study and CFD based simulation of closed loop pulsating heat pipe using of refrigerants (R-134a)[J]. International Journal of Modern Engineering Research, 2016, (7): 53-61.
28	WangJ, MaH, ZhuQ, et al. Numerical and experimental investigation of pulsating heat pipes with corrugated configuration[J]. Applied Thermal Engineering, 2016, 102: 158-166.
29	FadhlB, WrobelL C, JouharaH. CFD modelling of a two-phase closed thermosyphon charged with R134a and R404a[J]. Applied Thermal Engineering, 2015, 78: 482-490.
30	SureshV J, BhramaraP. CFD analysis of copper closed loop pulsating heat pipe[J]. Materials Today: Proceedings , 2018, 5(2): 5487-5495.
31	WenH L. A pressure iteration scheme for two-phase flow modeling[M]//Computational Methods for Two-Phase Flow and Particle Transport. World Scientific, 1980: 61-82.

[1]	Zhanyu YE, He SHAN, Zhenyuan XU. Performance simulation of paper folding-like evaporator for solar evaporation systems [J]. CIESC Journal, 2023, 74(S1): 132-140.
[2]	Shuangxing ZHANG, Fangchen LIU, Yifei ZHANG, Wenjing DU. Experimental study on phase change heat storage and release performance of R-134a pulsating heat pipe [J]. CIESC Journal, 2023, 74(S1): 165-171.
[3]	Yifei ZHANG, Fangchen LIU, Shuangxing ZHANG, Wenjing DU. Performance analysis of printed circuit heat exchanger for supercritical carbon dioxide [J]. CIESC Journal, 2023, 74(S1): 183-190.
[4]	Zhiguo WANG, Meng XUE, Yushuang DONG, Tianzhen ZHANG, Xiaokai QIN, Qiang HAN. Numerical simulation and analysis of geothermal rock mass heat flow coupling based on fracture roughness characterization method [J]. CIESC Journal, 2023, 74(S1): 223-234.
[5]	He JIANG, Junfei YUAN, Lin WANG, Guyu XING. Experimental study on the effect of flow sharing cavity structure on phase change flow characteristics in microchannels [J]. CIESC Journal, 2023, 74(S1): 235-244.
[6]	Yanpeng WU, Qianlong LIU, Dongmin TIAN, Fengjun CHEN. A review of coupling PCM modules with heat pipes for electronic thermal management [J]. CIESC Journal, 2023, 74(S1): 25-31.
[7]	Xin YANG, Wen WANG, Kai XU, Fanhua MA. Simulation analysis of temperature characteristics of the high-pressure hydrogen refueling process [J]. CIESC Journal, 2023, 74(S1): 280-286.
[8]	Jiahao SONG, Wen WANG. Study on coupling operation characteristics of Stirling engine and high temperature heat pipe [J]. CIESC Journal, 2023, 74(S1): 287-294.
[9]	Siyu ZHANG, Yonggao YIN, Pengqi JIA, Wei YE. Study on seasonal thermal energy storage characteristics of double U-shaped buried pipe group [J]. CIESC Journal, 2023, 74(S1): 295-301.
[10]	Jingwei CHAO, Jiaxing XU, Tingxian LI. Investigation on the heating performance of the tube-free-evaporation based sorption thermal battery [J]. CIESC Journal, 2023, 74(S1): 302-310.
[11]	Ruitao SONG, Pai WANG, Yunpeng WANG, Minxia LI, Chaobin DANG, Zhenguo CHEN, Huan TONG, Jiaqi ZHOU. Numerical simulation of flow boiling heat transfer in pipe arrays of carbon dioxide direct evaporation ice field [J]. CIESC Journal, 2023, 74(S1): 96-103.
[12]	Yitong LI, Hang GUO, Hao CHEN, Fang YE. Study on operating conditions of proton exchange membrane fuel cells with non-uniform catalyst distributions [J]. CIESC Journal, 2023, 74(9): 3831-3840.
[13]	Song HE, Qiaomai LIU, Guangshuo XIE, Simin WANG, Juan XIAO. Two-phase flow simulation and surrogate-assisted optimization of gas film drag reduction in high-concentration coal-water slurry pipeline [J]. CIESC Journal, 2023, 74(9): 3766-3774.
[14]	Lei XING, Chunyu MIAO, Minghu JIANG, Lixin ZHAO, Xinya LI. Optimal design and performance analysis of downhole micro gas-liquid hydrocyclone [J]. CIESC Journal, 2023, 74(8): 3394-3406.
[15]	Manzheng ZHANG, Meng XIAO, Peiwei YAN, Zheng MIAO, Jinliang XU, Xianbing JI. Working fluid screening and thermodynamic optimization of hazardous waste incineration coupled organic Rankine cycle system [J]. CIESC Journal, 2023, 74(8): 3502-3512.