Experimental investigations on heat transfer in a new minichannel heat sink

被引：33

作者：

Vajravel, Leela Vinodhan ^{[1
]}

Swaminathan, Suganthi Kuppusamy ^{[1
]}

Baskaran, Sivapalan ^{[1
]}

Sekar, Rajan Kalpoondi ^{[1
]}

机构：

[1] SASTRA Deemed Univ, Sch Chem & Biotechnol SCBT, Ctr Nanotechnol & Adv Biomat CeNTAB, Thanjavur 613401, India

来源：

INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2019年 / 140卷

关键词：

New minichannel heat sink; Coolant distribution; Miter bends; Heat transfer performance; Thermal resistance; Substrate temperature gradient; BATTERY THERMAL MANAGEMENT; TRANSFER PERFORMANCE; ETHYLENE GLYCOL; NANOFLUIDS; FLOW; OPTIMIZATION; SYSTEM; PHASE;

D O I：

10.1016/j.ijthermalsci.2019.02.029

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We report experimental investigations carried out on a new minichannel heat sink (nMCHS) comprising four compartments, each equipped with inlet and outlet plenums for coolant and rectangular minichannels with two miter bends in each channel. For comparison, the performance of a conventional minichannel heat sink (cMCHS) comprising minichannels of same hydraulic diameter as that of the channels in new heat sink was also studied. Reynolds number had a stronger influence on Nusselt number in nMCHS than that in conventional. The experimental data (Reynolds number range from 175.02 to 553.40; pumping power range from 4.47E-3 to 1.89E-1 W) reveals that the total thermal resistance was appreciably reduced in the new heat sink, due to higher heat transfer coefficients caused by developing nature of the flow. The coolant distribution in the new minichannel heat sink contributed to a significant reduction (60%) in substrate temperature gradient.

引用

页码：144 / 153

页数：10

共 33 条

[1] lEffect of channel angle of pin-fin heat sink on heat transfer performance using water based graphene nanoplatelets nanofluids [J].