Compound effect of inlet restrictor and counter-flow configuration on flow boiling characteristics in mini-channels under electric field

被引：0
作者：
Zhang, Jinxin [1 ]
Luo, Xiaoping [1 ]
Feng, Zhenfei [2 ]
机构：
[1] South China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510641, Guangdong, Peoples R China
[2] Guangxi Univ, Sch Mech Engn, Nanning 530004, Guangxi, Peoples R China
来源：
APPLIED THERMAL ENGINEERING | 2025年 / 261卷
基金：
中国国家自然科学基金;
关键词：
Mini-channel; Flow boiling; Electric field; Inlet restrictor; Counter-flow; PRESSURE-DROP CHARACTERISTICS; CONDENSATION HEAT-TRANSFER; DIFFERENT ORIENTATIONS; MICROCHANNELS; ENHANCEMENT; PERFORMANCE; EVAPORATOR;
D O I：
10.1016/j.applthermaleng.2024.125165
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Micro/mini-channel with increasing heat transfer performance and decreasing temperature uniformity are very important for microelectronic cooling challenges. In this study, two novel mini-channels, the mini-channel with inlet restrictor (IRMC) and counter-flow mini-channel with inlet restrictor (CIRMC), are designed for this purpose. The pin electrodes are used to create non-uniform electric field. This study experimentally investigates the impact of inlet restrictor and counter-flow configuration on micro/mini-channel flow boiling of R141b under electric field. The results show that inlet restrictor significantly improves flow boiling performance for minichannels, especially at high heat flux conditions, and improves the electric field effect on heat transfer enhancement. The heat transfer enhancement ratios achieved by combination of inlet restrictor and electric field can reach 2.05. Counter-flow configuration can maintain lower temperature uniformity. The compound effect of electric field and counter-flow configuration considerably improves flow boiling heat transfer in min-channels. In comparison to conventional parallel-flow mini-channel (CPMC) without electric field, CIRMC with electric field has a maximum enhancement ratio of 2.88 at heat flux of 8.2 kW/m2. This research will provide a guiding principle for the application of active and passive enhancement techniques into micro/mini-channel.
引用
收藏
页数：17
相关论文
共 73 条
[1]   Effect of graphene coating on flow boiling in a minichannel at sub-atmospheric pressures [J].
Ahmadi, Vahid Ebrahimpour ;
Guler, Tayfun ;
Amin, Saifa ;
Apak, Ahmet Muhtar ;
Apak, Alper ;
Parlak, Murat ;
Tastan, Umur ;
Kaya, Ismet Inonu ;
Sadaghiani, Abdolali ;
Kosar, Ali .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2024, 229
[2]   Experimental investigation of local flow boiling heat transfer and pressure drop characteristics in microgap channel [J].
Alam, Tamanna ;
Lee, Poh Seng ;
Yap, Christopher R. ;
Jin, Liwen .
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2012, 42 :164-174
[3]   Flow boiling of dielectric fluid HFE-7000 in a minichannel with pin fin structured surfaces [J].
Ates, Aysenur ;
Celik, Sueleyman ;
Yagci, Vedat ;
Malyemez, Muhammed Caglar ;
Parlak, Murat ;
Sadaghiani, Abdolali K. ;
Kosar, Ali .
APPLIED THERMAL ENGINEERING, 2023, 223
[4]   On the effect of elliptical pin Fins, distribution pin Fins, and tip clearance on the performance of heat sinks in flow boiling [J].
Ates, Aysenur ;
Benam, Behnam Parizad ;
Yagci, Vedat ;
Malyemez, Muhammed Caglar ;
Parlak, Murat ;
Sadaghiani, Abdolali K. ;
Kosar, Ali .
APPLIED THERMAL ENGINEERING, 2022, 212
[5]   R245fa flow boiling heat transfer in a sintering and electroplating modulated tube [J].
Cao, Shuang ;
Wang, Guanghui ;
Yang, Hui ;
Zhao, Luxing ;
Guo, Hao .
APPLIED THERMAL ENGINEERING, 2023, 219
[6]   R245fa condensation heat transfer in a phase separation condenser [J].
Cao, Shuang ;
Ji, Xianbing ;
Xu, Jinliang .
EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2018, 98 :346-361
[7]   Effects of electric field on pool boiling heat transfer over composite microstructured surfaces with microcavities on micro-pin-fins [J].
Chang, Huaizheng ;
Liu, Bin ;
Li, Qing ;
Yang, Xi ;
Zhou, Ping .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2023, 205
[8]   A two-phase flow pattern map for annular channels under a DC applied voltage and the application to electrohydrodynamic convective boiling analysis [J].
Cotton, J ;
Robinson, AJ ;
Shoukri, M ;
Chang, JS .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2005, 48 (25-26) :5563-5579
[9]   Enhanced flow boiling of HFE-7100 in picosecond laser fabricated copper microchannel heat sink [J].
Cui, Peilin ;
Liu, Zhenyu .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2021, 175
[10]   Experimental study of flow boiling performance of open-ring pin fin microchannels [J].
Deng, Daxiang ;
Zeng, Long ;
Sun, Wei ;
Pi, Guang ;
Yang, Yue .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2021, 167
12345678