Research and development of loop heat pipe with flat evaporator

doi:10.16085/j.issn.1000-6613.2020-2215

Abstract

Abstract:

Loop heat pipe (LHP) is an efficient heat transfer device. Compared with other traditional heat pipes, the biggest advantage of LHP is its large heat transfer distance and anti-gravity operation. This study reviewed LHP, which is advantageous not only to the development of basic theory of LHP but also to the development and utilization of novel and high-efficiency LHP. In this review, the LHP are classified according to the shape of evaporator, and the progress of the experimental research and theoretical model research on the flat evaporator LHP in the past five years are introduced , including wick structure design, working fluid choice, evaporator optimization, evaporator model research and LHP system model research. In addition, the advantages and disadvantages of the six wick structures and their application status are analyzed, and the differences of several common working fluid and three conventional flat evaporator LHP system models are compared. Finally, the research status of flat evaporator LHP is summarized, and the scientific analysis and prospect of the experimental research and theoretical model research for the flat evaporator LHP are proposed.

Key words: loop heat pipe, wick, working fluid, evaporator, theoretical model

摘要：

环路热管是一种高效的传热装置。与其他传统的热管相比，其最大的优势是传热距离大、可反重力运行。对环路热管进行总结和回顾，既有利于推进环路热管基础理论的发展，也可促进新型、高效环路热管的开发与利用。本文根据蒸发器的形状对环路热管进行了分类，全面系统地介绍了近五年国内外关于平板形蒸发器环路热管的实验研究和理论模型研究进展，包括吸液芯结构设计、工质选择、蒸发器优化、蒸发器的模型研究及环路热管系统的模型研究，分析了6种吸液芯结构各自的优缺点与应用现状，比较了几种常见工质及3种常规平板形蒸发器环路热管系统模型之间的差异。最后对平板形蒸发器环路热管的研究现状进行了总结，并对未来其在实验研究和理论模型研究方面提出了科学的分析与展望。

关键词: 环路热管, 吸液芯, 工质, 蒸发器, 理论模型

CLC Number:

TK124

XIONG Kangning, WU Wei, WANG Shuangfeng. Research and development of loop heat pipe with flat evaporator[J]. Chemical Industry and Engineering Progress, 2021, 40(10): 5388-5402.

熊康宁, 吴伟, 汪双凤. 平板形蒸发器环路热管的研究进展[J]. 化工进展, 2021, 40(10): 5388-5402.

Figures/Tables 13

序号	工质	吸液芯材质	蒸发器材质	汽液线材质	工质使用范围/℃	参考文献
1	氨	双孔镍芯	不锈钢	不锈钢	-60～100	［35］
1	氨	双孔镍芯+低热导率的多孔材料	不锈钢+紫铜	不锈钢	-60～100	［47］
2	蒸馏水/去离子水	烧结铜粉	紫铜	紫铜	20～200	［33，48］
		细铜网	紫铜	紫铜		［40-41］
		不同粒度的复合铜芯	黄铜+聚碳酸酯塑料	紫铜		［34，49］
		生物碳芯	紫铜	紫铜		［51］
		亲水性聚四氟乙烯	不锈钢	不锈钢		［52］
		镀铜碳纤维	紫铜	紫铜		［37］
		烧结铜丝网	黄铜+聚碳酸酯塑料	黄铜		［42］
		烧结不锈钢丝网	黄铜	紫铜		［48］
		烧结双孔镍芯	黄铜	紫铜	30～120	［48］
3	丙酮	烧结不锈钢丝	铝	铝	0～120	［36］
4	乙醇	烧结铜纤维	紫铜	紫铜	0～130	［46］
4	乙醇	碳纤维	紫铜	紫铜	0～130	［38］
5	乙醇+丙酮（体积比1∶1）	碳纤维	紫铜	紫铜	0～120	［53］

常规的一维稳态分析模型^{［40，72-74］}

一种基于能量守恒、动量守恒和热力学关系的一维稳态分析模型

（1）压降损失

$Δ P c a p ≥ Δ P w, e + Δ P g r, e + Δ P c o n t r, e + Δ P p + Δ P g + Δ P c + Δ P c o n t r, c$

（2）能量平衡

蒸发器

$Q i n = Q e + Q a m b + Q a x i a l$

冷凝器

$Q o u t = m ? Δ h + m ? c p l (T c - T c o)$

（3）热力学关系

$T v - T c = ? T ? P Δ P v$

环路热管各区域的压降

Δ P i

、温度

T i

基于结点分析法建立的一维稳态模型^［76-77］

对环路热管进行节点划分，针对每个节点建立能量和质量平衡方程来求解热量传递、压力损失和质量流量

（1）压降损失

$Δ P c a p ≥ Δ P w, e + Δ P g r, e + Δ P c o n t r, e + Δ P p + Δ P g + Δ P c + Δ P c o n t r, c$

（2）能量平衡

$M i c p, i d T d t = ∑ j = 1 N C j i (T j - T i) + ∑ j = 1 N H j i (T j - T i) + ∑ j = 1 N F j i (T j - T i) + Q i$

环路热管各节点的压降

Δ P i

、热流量

Q i

、温度

T i

三维计算流体动力学模型^［78-79］

对环路热管建立相应的几何和数学模型，利用集成的计算流体力学商用软件进行求解，以获得环路热管温度、汽、液分布等情况

（1）表面压降

$p 2 - p 1 = σ 1 R 1 + 1 R 2$

（2）蒸汽输运方程

$? ? t α v ρ v + ? ? α v ρ v v v = m ? l → v - m ? v → l$

（3）动量方程源项

$S q = - μ K v q + C 2 12 ρ v q v q$

（4）热流密度

$q i = - k i j ? T ? x j$

热导率

k i j

、温度

T i

模型类型

模型简述

核心公式

关键参数

常规的一维稳态分析模型^{［40，72-74］}

一种基于能量守恒、动量守恒和热力学关系的一维稳态分析模型

（1）压降损失

$Δ P c a p ≥ Δ P w, e + Δ P g r, e + Δ P c o n t r, e + Δ P p + Δ P g + Δ P c + Δ P c o n t r, c$

（2）能量平衡

蒸发器

$Q i n = Q e + Q a m b + Q a x i a l$

冷凝器

$Q o u t = m ? Δ h + m ? c p l (T c - T c o)$

（3）热力学关系

$T v - T c = ? T ? P Δ P v$

环路热管各区域的压降

Δ P i

、温度

T i

基于结点分析法建立的一维稳态模型^［76-77］

对环路热管进行节点划分，针对每个节点建立能量和质量平衡方程来求解热量传递、压力损失和质量流量

（1）压降损失

$Δ P c a p ≥ Δ P w, e + Δ P g r, e + Δ P c o n t r, e + Δ P p + Δ P g + Δ P c + Δ P c o n t r, c$

（2）能量平衡

$M i c p, i d T d t = ∑ j = 1 N C j i (T j - T i) + ∑ j = 1 N H j i (T j - T i) + ∑ j = 1 N F j i (T j - T i) + Q i$

环路热管各节点的压降

Δ P i

、热流量

Q i

、温度

T i

三维计算流体动力学模型^［78-79］

对环路热管建立相应的几何和数学模型，利用集成的计算流体力学商用软件进行求解，以获得环路热管温度、汽、液分布等情况

（1）表面压降

$p 2 - p 1 = σ 1 R 1 + 1 R 2$

（2）蒸汽输运方程

$? ? t α v ρ v + ? ? α v ρ v v v = m ? l → v - m ? v → l$

（3）动量方程源项

$S q = - μ K v q + C 2 12 ρ v q v q$

（4）热流密度

$q i = - k i j ? T ? x j$

热导率

k i j

、温度

T i

References 79

1	BELHARDJ S, MIMOUNI S, SAIDANE A, et al. Using microchannels to cool microprocessors: a transmission-line-matrix study[J]. Microelectronics Journal, 2003, 34(4): 247-253.
2	CHEN X P, YE H Y, FAN X J, et al. A review of small heat pipes for electronics[J]. Applied Thermal Engineering, 2016, 96: 1-17.
3	CHEN P, CHANG S, KUEI CHIANG, et al. High power electronic component: review[J]. Recent Patents on Engineering, 2008, 2(3): 174-188.
4	张伟保. 环路热管的热输送性能研究[D]. 广州: 华南理工大学, 2010.
	ZHANG Weibao. Study on heat transfer performance of LHP[D]. Guangzhou: South China University of Technology, 2010.
5	WANG S F, HUO J P, ZHANG X F, et al. Experimental study on operating parameters of miniature loop heat pipe with flat evaporator[J]. Applied Thermal Engineering, 2012, 40: 318-325.
6	PASTUKHOV V G, MAIDANIK Y F, VERSHININ C V, et al. Miniature loop heat pipes for electronics cooling[J]. Applied Thermal Engineering, 2003, 23(9): 1125-1135.
7	PASTUKHOV V G, MAIDANIK Y F. Copper-water loop heat pipes for PC cooling systems[J]. Thermal Process Engineering, 2010, 2: 279-286(in Russian).
8	PASTUKHOV V G, MAYDANIK Y F. Active coolers based on copper-water LHPs for desktop PC[J]. Applied Thermal Engineering, 2009, 29(14/15): 3140-3143.
9	张维. 微小平板形环路热管在电动汽车电池散热中的应用基础研究[D]. 广州: 华南理工大学, 2013.
	ZHANG Wei. Research of miniature flat loop heat pipe on the heat dissipation of electric vehicle battery[D]. Guangzhou: South China University of Technology, 2013.
10	HONG S H, ZHANG X Q, WANG S F, et al. Experimental investigation on the characters of ultra-thin loop heat pipe applied in BTMS[J]. Energy Procedia, 2015, 75: 3192-3200.
11	洪思慧. 超薄平板回路式热管的热传输性能研究[D]. 广州: 华南理工大学, 2018.
	HONG Sihui. Investigation on heat transfer characteristics of ultra-thin flat looped heat pipe[D]. Guangzhou: South China University of Technology, 2018.
12	PUTRA N, ARIANTARA B, PAMUNGKAS R A. Experimental investigation on performance of lithium-ion battery thermal management system using flat plate loop heat pipe for electric vehicle application[J]. Applied Thermal Engineering, 2016, 99: 784-789.
13	LI J, LIN F, WANG D M, et al. A loop-heat-pipe heat sink with parallel condensers for high-power integrated LED chips[J]. Applied Thermal Engineering, 2013, 56(1/2): 18-26.
14	ESARTE J, BERNARDINI A, BLANCO J M, et al. Optimizing the design for a two-phase cooling loop heat pipe. Part A: Numerical model, validation and application to a case study[J]. Applied Thermal Engineering, 2016, 99: 892-904.
15	荣波. 回路热管用于LED器件散热的实验研究与数值模拟优化[D]. 合肥: 安徽建筑大学, 2016.
	RONG Bo. The experimental study and numerical simulation on heat dissipation of LED device based on loop heat pipe[D]. Hefei: Anhui Jianzhu University, 2016.
16	HUANG B J, HSU P C, TSAI R J, et al. A thermoelectric generator using loop heat pipe and design match for maximum-power generation[J]. Applied Thermal Engineering, 2015, 91: 1082-1091.
17	陈富城. 基于数据中心余热回收微通道平板环路热管仿真模型研究[D]. 广州: 广东工业大学, 2020.
	CHEN Fucheng. Research on simulation model of micro channel flat loop heat pipe based on waste heat recovery in data center[D]. Guangzhou: Guangdong University of Technology, 2020.
18	SU Q, CHANG S N, ZHAO Y Y, et al. A review of loop heat pipes for aircraft anti-icing applications[J]. Applied Thermal Engineering, 2018, 130: 528-540.
19	HODOT R, SARTRE V, LEFÈVRE F, et al. Modeling and experimental tests of a loop heat pipe for aerospace applications[J]. Journal of Thermophysics and Heat Transfer, 2016, 30(1): 182-191.
20	ZHAO Y, CHANG S, YANG B, et al. Experimental study on the thermal performance of loop heat pipe for the aircraft anti-icing system[J]. International Journal of Heat and Mass Transfer, 2017, 111: 795-803.
21	霍杰鹏. 平板形蒸发器环路热管传热特性研究[D]. 广州: 华南理工大学, 2012.
	HUO Jiepeng. Study on heat transfer characteristics of loop heat pipe with a flat evaporator[D]. Guangzhou: South China University of Technology, 2012.
22	MAYDANIK Y F. Loop heat pipes[J]. Applied Thermal Engineering, 2005, 25(5/6): 635-657.
23	LI J, WANG D M, PETERSON G P. Experimental studies on a high performance compact loop heat pipe with a square flat evaporator[J]. Applied Thermal Engineering, 2010, 30(6/7): 741-752.
24	CHEN B B, LIU W, LIU Z C, et al. Experimental investigation of loop heat pipe with flat evaporator using biporous wick[J]. Applied Thermal Engineering, 2012, 42: 34-40.
25	WANG D D, LIU Z C, SHEN J, et al. Experimental study of the loop heat pipe with a flat disk-shaped evaporator[J]. Experimental Thermal and Fluid Science, 2014, 57: 157-164.
26	XU J Y, ZHANG L, XU H, et al. Experimental investigation and visual observation of loop heat pipes with two-layer composite wicks[J]. International Journal of Heat and Mass Transfer, 2014, 72: 378-387.
27	MAYDANIK Y, VERSHININ S, CHERNYSHEVA M, et al. Investigation of a compact copper-water loop heap pipe with a flat evaporator[J]. Applied Thermal Engineering, 2011, 31(16): 3533-3541.
28	LIU Z C, LI H, CHEN B B, et al. Operational characteristics of flat type loop heat pipe with biporous wick[J]. International Journal of Thermal Sciences, 2012, 58: 180-185.
29	LI J, WANG D M, PETERSON G P B. A compact loop heat pipe with flat square evaporator for high power chip cooling[J]. IEEE Transactions on Components, Packaging and Manufacturing Technology, 2011, 1(4): 519-527.
30	CHEN Y M, GROLL M, MERTZ R, et al. Steady-state and transient performance of a miniature loop heat pipe[J]. International Journal of Thermal Sciences, 2006, 45(11): 1084-1090.
31	刘仍通, 潘阳. 回路热管在电子冷却的应用研究进展[J]. 制冷与空调, 2011, 25(1): 65-68.
	LIU Rengtong, PAN Yang. Research development of loop heat pipe for electronic cooling[J]. Refrigeration & Air Conditioning, 2011, 25(1): 65-68.
32	陈灿. 粉末烧结式不锈钢热管制造及其传热性能研究[D]. 广州: 华南理工大学, 2018.
	CHEN Can. Fabrication and heat transfer performance of stainless steel heat pipe by powder sintering[D]. Guangzhou: South China University of Technology, 2018.
33	CHERNYSHEVA M A, YUSHAKOVA S I, MAYDANIK Y F. Effect of external factors on the operating characteristics of a copper-water loop heat pipe[J]. International Journal of Heat and Mass Transfer, 2015, 81: 297-304.
34	XU J Y, WANG Z Y, XU H, et al. Experimental research on the heat performance of a flat copper-water loop heat pipe with different inventories[J]. Experimental Thermal and Fluid Science, 2017, 84: 110-119.
35	ZHANG Z K, ZHANG H, MA Z Y, et al. Experimental study of heat transfer capacity for loop heat pipe with flat disk evaporator[J]. Applied Thermal Engineering, 2020, 173: 115183.
36	DE ODAGIRI K, NAGANO H. Heat transfer characteristics of flat evaporator loop heat pipe under high heat flux condition with different orientations[J]. Applied Thermal Engineering, 2019, 153: 828-836.
37	LIU J Y, ZHANG Y X, FENG C, et al. Study of copper chemical-plating modified polyacrylonitrile-based carbon fiber wick applied to compact loop heat pipe[J]. Experimental Thermal and Fluid Science, 2019, 100: 104-113.
38	刘龙飞. 碳纤维毛细芯平板环路热管的性能研究及优化[D]. 济南: 山东大学, 2019.
	LIU Longfei. Study and optimization of flat lood heat pipe with carbon fiber capillary wicks[D]. Jinan: Shandong University, 2019.
39	徐计元, 邹勇. 环路热管毛细结构的研究进展[J]. 中国电机工程学报, 2013, 33(8): 65-73.
	XU Jiyuan, ZOU Yong. Research and development of capillary structure in loop heat pipe[J]. Proceedings of the CSEE, 2013, 33(8): 65-73.
40	ZHOU G H, LI J, LV L. An ultra-thin miniature loop heat pipe cooler for mobile electronics[J]. Applied Thermal Engineering, 2016, 109: 514-523.
41	ZHOU G H, LI J, JIA Z Z. Power-saving exploration for high-end ultra-slim laptop computers with miniature loop heat pipe cooling module[J]. Applied Energy, 2019, 239: 859-875.
42	ZHOU G H, LI J. Two-phase flow characteristics of a high performance loop heat pipe with flat evaporator under gravity[J]. International Journal of Heat and Mass Transfer, 2018, 117: 1063-1074.
43	柳洋. 泡沫金属芯环路热管的性能研究及毛细芯优化[D]. 济南: 山东大学, 2020.
	LIU Yang. Investigate on the properties of LHP with foam metal wicks and the optimization of the wick[D]. Jinan: Shandong University, 2020.
44	ZHOU W, LING W S, DUAN L, et al. Development and tests of loop heat pipe with multi-layer metal foams as wick structure[J]. Applied Thermal Engineering, 2016, 94: 324-330.
45	方朝斌. 基于金属纤维和粉末烧结的复合吸液芯的制造及毛细性能研究[D]. 广州: 华南理工大学, 2016.
	FANG Chaobin. Fabrication and capillary performance of composite wicks based on metal fiber and powder sintering[D]. Guangzhou: South China University of Technology, 2016.
46	LING W S, ZHOU W, LIU R L, et al. Thermal performance of loop heat pipe with porous copper fiber sintered sheet as wick structure[J]. Applied Thermal Engineering, 2016, 108: 251-260.
47	MAYDANIK Y F, VERSHININ S V, CHERNYSHEVA M A. Experimental study of an ammonia loop heat pipe with a flat disk-shaped evaporator using a bimetal wall[J]. Applied Thermal Engineering, 2017, 126: 643-652.
48	田巍. 超薄平板式环路热管的实验研究[D]. 武汉: 华中科技大学, 2019.
	TIAN Wei. The experimental study of loop heat pipe system with ultra-thin flat evaporator[D]. Wuhan: Huazhong University of Science and Technology, 2019.
49	XU J Y, WANG D C, HU Z H, et al. Effect of the working fluid transportation in the copper composite wick on the evaporation efficiency of a flat loop heat pipe[J]. Applied Thermal Engineering, 2020, 178: 115515.
50	胡卓焕, 王冬城, 许佳寅, 等. 双层毛细芯对环路热管传热性能的实验分析[J]. 热科学与技术, 2020, 19(2): 132-138.
	HU Zhuohuan, WANG Dongcheng, XU Jiayin, et al. Experimental analysis on heat transfer performance of loop heat pipes with double-layer wicks[J]. Journal of Thermal Science and Technology, 2020, 19(2): 132-138.
51	SOLOMON A B, MAHTO A K, JOY R C, et al. Application of bio-wick in compact loop heat pipe[J]. Applied Thermal Engineering, 2020, 169: 114927.
52	PHAN N. Flat-evaporator-type loop heat pipe with hydrophilic polytetrafluoroethylene porous membranes[J]. Physics of Fluids, 2020, 32(4): 047108.
53	蒋昊霖. 平板形碳纤维毛细芯环路热管工作性能可视化试验研究[D]. 济南: 山东大学, 2020.
	JIANG Haoseng. Research on the performance of visual flat carbon fiber capillary core loop heat pipe[D]. Jinan: Shandong University, 2020.
54	刘志春, 盖东兴, 刘伟, 等. 工质对平板形LHP运行特性影响的实验研究[J]. 工程热物理学报, 2010, 31(3): 487-490.
	LIU Zhichun, GAI Dongxing, LIU Wei, et al. Experimental study of effects of operating characteristics for a flat-type loop heat pipe with different working fluid[J]. Journal of Engineering Thermophysics, 2010, 31(3): 487-490.
55	THARAYIL T, ASIRVATHAM L G, RAVINDRAN V, et al. Thermal performance of miniature loop heat pipe with graphene-water nanofluid[J]. International Journal of Heat and Mass Transfer, 2016, 93: 957-968.
56	ANAND A R, JAISWAL A, AMBIRAJAN A, et al. Experimental studies on a miniature loop heat pipe with flat evaporator with various working fluids[J]. Applied Thermal Engineering, 2018, 144: 495-503.
57	张伟龙, 魏新利, 孟祥睿, 等. 热流密度及充灌率对板式蒸发器环路热管运行特性影响的实验研究[J]. 工程热物理学报, 2020, 41(8): 2020-2024.
	ZHANG Weilong, WEI Xinli, MENG Xiangrui, et al. Experimental study on the influence of heat flux and filling ratio on the operation characteristics of plate evaporator loop heat pipe[J]. Journal of Engineering Thermophysics, 2020, 41(8): 2020-2024.
58	赵同乐, 吴静怡, 张晋晋, 等. 充注量对水冷式环路热管性能影响的实验研究[J]. 制冷技术, 2017, 37(1): 18-22.
	ZHAO Tongle, WU Jingyi, ZHANG Jinjin, et al. Experimental research about influence of refrigerant charge on performance of water cooling loop heat pipe[J]. Chinese Journal of Refrigeration Technology, 2017, 37(1): 18-22.
59	THARAYIL T, ASIRVATHAM L G, RAVINDRAN V, et al. Effect of filling ratio on the performance of a novel miniature loop heat pipe having different diameter transport lines[J]. Applied Thermal Engineering, 2016, 106: 588-600.
60	JUNG E G, BOO J H. Experimental observation of thermal behavior of a loop heat pipe with a bypass line under high heat flux[J]. Energy, 2020, 197: 117241.
61	JUNG E G, BOO J H. Overshoot elimination of the evaporator wall temperature of a loop heat pipe through a bypass line[J]. Applied Thermal Engineering, 2020, 165: 114594.
62	HE S, ZHOU P, LIU W, et al. Experimental study on thermal performance of loop heat pipe with a composite-material evaporator for cooling of electronics[J]. Applied Thermal Engineering, 2020, 168: 114897.
63	VENKATA KRISHNAN D, UDAYA KUMAR G, SURESH S, et al. Evaluating the scale effects of metal nanowire coatings on the thermal performance of miniature loop heat pipe[J]. Applied Thermal Engineering, 2018, 133: 727-738.
64	THARAYIL T, GODSON ASIRVATHAM L, RAJESH S, et al. Effect of nanoparticle coating on the performance of a miniature loop heat pipe for electronics cooling applications[J]. Journal of Heat Transfer, 2018, 140(2): 022401.
65	HE S, ZHAO J, LIU Z C, et al. Experimental investigation of loop heat pipe with a large squared evaporator for cooling electronics[J]. Applied Thermal Engineering, 2018, 144: 383-391.
66	CHERNYSHEVA M A, MAYDANIK Y F. Peculiarities of heat transfer in a flat disk-shaped evaporator of a loop heat pipe[J]. International Journal of Heat and Mass Transfer, 2016, 92: 1026-1033.
67	CHERNYSHEVA M A, MAYDANIK Y F. Effect of liquid filtration in a wick on thermal processes in a flat disk-shaped evaporator of a loop heat pipe[J]. International Journal of Heat and Mass Transfer, 2017, 106: 222-231.
68	FUKUSHIMA K, NAGANO H. New evaporator structure for micro loop heat pipes[J]. International Journal of Heat and Mass Transfer, 2017, 106: 1327-1334.
69	SHIOGA T, MIZUNO Y, NAGANO H. Operating characteristics of a new ultra-thin loop heat pipe[J]. International Journal of Heat and Mass Transfer, 2020, 151: 119436.
70	LI J, HONG F J, XIE R J, et al. Pore scale simulation of evaporation in a porous wick of a loop heat pipe flat evaporator using Lattice Boltzmann method[J]. International Communications in Heat and Mass Transfer, 2019, 102: 22-33.
71	ZHU L, YU J L. Simulation of steady-state operation of an ejector-assisted loop heat pipe with a flat evaporator for application in electronic cooling[J]. Applied Thermal Engineering, 2016, 95: 236-246.
72	MENG F X, ZHANG Q, DU S, et al. One-dimensional steady-state mathematical model of a novel loop heat pipe with liquid line capillary wick[J]. Energy Exploration & Exploitation, 2020, 38(1): 253-273.
73	DU S, ZHANG Q, HOU P L, et al. Experimental study and steady-state model of a novel plate loop heat pipe without compensation chamber for CPU cooling[J]. Sustainable Cities and Society, 2020, 53: 101894.
74	GABSI I, MAALEJ S, ZAGHDOUDI M C. Thermal performance modeling of loop heat pipes with flat evaporator for electronics cooling[J]. Microelectronics Reliability, 2018, 84: 37-47.
75	THARAYIL T, ASIRVATHAM L G, DAU M J, et al. Entropy generation analysis of a miniature loop heat pipe with graphene-water nanofluid: thermodynamics model and experimental study[J]. International Journal of Heat and Mass Transfer, 2017, 106: 407-421.
76	ZHU K, LI X Q, WANG Y B, et al. Dynamic performance of loop heat pipes for cooling of electronics[J]. Energy Procedia, 2017, 142: 4163-4168.
77	LI X Q, ZHU K, LI H L, et al. Performance comparison regarding loop heat pipes with different evaporator structures[J]. International Journal of Thermal Sciences, 2019, 136: 86-95.
78	JOSE J, BABY R. Enhancement of the thermal performance of a loop heat pipe using silica-water nanofluid[J]. Journal of Physics: Conference Series, 2019, 1355: 012010.
79	ZHANG Y X, LIU J Y, LIU L F, et al. Numerical simulation and analysis of heat leakage reduction in loop heat pipe with carbon fiber capillary wick[J]. International Journal of Thermal Sciences, 2019, 146: 106100.

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