The effect of geometrical parameters on heat transfer characteristics of microchannels heat sink with different shapes

Gunnasegaran, Prem; Mohammed, Hussein A.; Shuaib, N. H.; Saidur, R.

doi:10.1016/j.icheatmasstransfer.2010.06.014

Cited by 266 publications

(67 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…MCHS usually contains a large number of parallel micro-channels with hydraulic diameters ranging from 10 to 1000 μm. Gunnasegaran et al (2010) numerically compared the effects of different cross-sections on heat transfer. They showed, with water as a transfer medium, that a rectangular cross-section is better than triangular or trapezoidal crosssections.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance of Carbon Nanotube Nanofluids in Solar Microchannel Collectors: an Experimental Study

Ahlatli¹,

Maré²,

Estellé³

et al. 2016

IJTech

View full text Add to dashboard Cite

Many studies show that nanofluids, especially with carbon nanotubes, improve heat transfer. Other studies show that a nanofluid is a good candidate for solar systems because of its good absorptivity. We are facing an increasing number of miniaturized and more powerful systems. Especially in microelectronics, small heat sinks with high heat transfer are being developed, called micro-channel heat sinks (MCHS). In this paper, the heat transfer behavior of carbon nanotube-water nanofluid in a microchannel solar collector is studied experimentally. The exchanger is composed of 16 micro-channel hydraulic diameters of 1 mm and a glass or quartz cover with a surface area of 25 cm 2 . Solar radiation is simulated by a halogen lamp. The experimental set-up includes a solar meter, pressure, and temperature sensors, and it is allowed to control the flow. The nanofluid is a solution of water containing a 0.01%, 0.05%, 0.1%, and 0.5% weight fraction, respectively, of the carbon nanotubes, which are 9.2 nm in diameter and 1.5 µm in length. Viscosity and density are measured experimentally. The evolution of efficiency and the pressure drop are presented according to the Reynolds number and are compared with the results obtained with distilled water.

show abstract

Section: Introductionmentioning

confidence: 99%

Thermal Performance of Carbon Nanotube Nanofluids in Solar Microchannel Collectors: an Experimental Study

Ahlatli¹,

Maré²,

Estellé³

et al. 2016

IJTech

View full text Add to dashboard Cite

show abstract

“…The effect of geometrical parameters and their shape on conjugate heat transfer was further extended by comparison of the rectangle, trapezoidal and triangular geometrical section. Gunnasegaran et al (2010) distribution and rate of heat transfer is observed in rectangular section which has small hydraulic diameter.…”

Section: Introductionmentioning

confidence: 95%

Effect of Different Shapes on Characteristics of Conjugate Heat Transfer of Micro Channel Heat Sink

Kanor¹,

Manimaran²

2016

Frontiers in Heat and Mass Transfer

View full text Add to dashboard Cite

One of the effective liquid cooling techniques for microelectronic devices is attaching micro channel heat sink to the inactive side of chip. A micro channel heat sink is a device that decreases temperature by flowing coolant through micro channels. The present study focuses on the conjugate heat transfer analyses for different cross-sections (trapezoidal, hexagonal, octagonal and circular).After present study is validated with the published result in the literature, the comparative study of parallel and counter flow configuration is performed. Different geometries are modeled using CATIA V5 software and simulated in ANSYS Fluent R14. From these CFD simulations, preferred configuration of parallel-flow or counter-flow is chosen based on maximum possible heat transfer for effective cooling. The focus on the analyses is to improve the heat transfer rate by either decreasing the chip wall (bottom wall) temperature or the decrease in overall thermal resistance.

show abstract

“…Dissipation of heat power, higher than 1000W/cm 2 , is possible in such circuits. The greatest cooling efficiency is obtained in two-phase systems with forced circulation of a cooling refrigerant [14,15]. Such systems with the phase change heat are more efficient than singlephase systems.…”

Section: Selecting Of Microstructuresmentioning

confidence: 99%

Semiconductor and Ceramic Microstructure Made by Single Mode Fiber Laser

Pawlak

Tomczyk

Walczak

et al. 2014

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The effect of geometrical parameters on heat transfer characteristics of microchannels heat sink with different shapes

Cited by 266 publications

References 15 publications

Thermal Performance of Carbon Nanotube Nanofluids in Solar Microchannel Collectors: an Experimental Study

Thermal Performance of Carbon Nanotube Nanofluids in Solar Microchannel Collectors: an Experimental Study

Effect of Different Shapes on Characteristics of Conjugate Heat Transfer of Micro Channel Heat Sink

Semiconductor and Ceramic Microstructure Made by Single Mode Fiber Laser

Contact Info

Product

Resources

About