Experimental study of aero-thermal heat sink performances subjected to impinging air flow

Belarbi, Abdelillah Abed; Beriache, M’hamed; Bettahar, A.

doi:10.18280/ijht.360420

Cited by 11 publications

(8 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The junction temperature as well as the thermal resistance and pressure drop of the heat sink were investigated as a function of the Reynolds number. An experimental study carried out by Belarbi et al 16 confirms the positive contributions of minichannel heat sinks subject to air impinging jet as a CPU cooling system. Each of the aforementioned cooling methods is effective within certain limits, and merging one with the other increases its effectiveness 17 .…”

Section: Introductionmentioning

confidence: 84%

“…The experimental test rig consists of a confined impinging jet system, minichannel heat sink, a heat source and a system to measure flow rate, flow velocity, pressure drop, and temperature. The detail scheme of the current experimental rig without TEC cooler unit is described in Ref [16]. Considered heat sink (Figure 2) is made of aluminum, with density ρ = 2702 kg/m 3 with thermal conductivity of 237 W/m·K 30 .…”

Section: Experimental Rigmentioning

confidence: 99%

See 1 more Smart Citation

Experimental investigation on controlled cooling by coupling of thermoelectric and an air impinging jet for CPU

et al. 2020

Self Cite

View full text Add to dashboard Cite

In this study, experimental tests have been carried out on the coupling thermoelectric cooling module with minichannel heatsink subjected to impinging airflow for cooling desktop central processing unit (CPU). A controlled thermoelectric‐forced test system was designed for this purpose. This was designed using electronic Arduino card. The proposed hybrid cooling system was compared with the conventional forced air‐cooling technique. Three power of heat source (CPU) were adopted, investigated, and compared, namely 60, 87, and 95 W. Performance of controlled thermoelectric cooling with three preset temperature were experimentally examined. The effects of air velocity and thermoelectric input current on the case temperature (Tcase), thermal resistance, and heat transfer coefficient were analyzed. Results showed that the Tcase increases with the increase of its input power. In addition, increasing air jet velocity and thermoelectric input current improve CPU cooling significantly. For a CPU power of 95 W, the recorded Tcase temperature was 57°C with the conventional system. While it was maintained below 50°C in the hybrid system. The thermoelectric cooler has had a major effect on CPU cooling, having 15% improvement over conventional forced air‐cooling. However, this was accompanied by an increase in energy consumption in the range of 45 W.

show abstract

Section: Introductionmentioning

confidence: 84%

Section: Experimental Rigmentioning

confidence: 99%

Experimental investigation on controlled cooling by coupling of thermoelectric and an air impinging jet for CPU

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Assuming the radiation term is negligible, considering steady state, and hypothesizing that . Q cor is practically the power consumption of the discharge, heat equation can be rewritten as follows [35]:…”

Section: Heat-transfer Equationsmentioning

confidence: 99%

Design and Experimental Evaluation of Innovative Wire-to-Plane Fins’ Configuration for Atmosphere Corona-Discharge Cooling Devices

Cogollo

Balsalobre²,

Lantada

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

Electro-fluid-dynamic cooling devices (EFAs) are being recognized due to their enormous advantages for their application in several industrial sectors, their performance benefits from generated ionic winds and their singular features, which make them competitive with conventional fans and heatsinks. Due to the problems in the electronics industry, where traditional refrigeration systems are not effective due to their dimensions, this study analyzes an innovative arrangement based on wire-to-plane fins by direct current (DC) positive corona discharge in atmospheric air for applications. The paper focuses on optimizing the multicriteria geometry of the electrodes. Several parameters are analyzed such as the gap between emitter and ground electrodes, the electrode materials and geometry, the diameter of the high-voltage electrode and the influence of the dielectric barriers located near the corona electrode to improve heat exchange. Experimental validation shows the potential of this arrangement related to weight, volume, non-mobile parts and silence.

show abstract

“…Belarbi ve diğ. [13] ise kişisel bilgisayar işlemcisinin soğutma performansını iyileştirmek amacıyla hava jeti çarpmalı kesiti dikdörtgen olan mini kanallı soğutucu bloğun ısıl ve aerodinamik performanslarının deneysel araştırmasını yapmışlardır. Değişken parametreler olarak, hız profili, ısıl direnç ve sıcaklık üzerinde jet çarpma mesafesinin etkisini çalışmışlardır.…”

Section: Introductionunclassified

Study of cooling of the varied designed warmed surfaces with an air jet impingement

Karabulut¹,

Alnak²

2020

Pamukkale J Eng Sci

View full text Add to dashboard Cite

Çarpan jetler, günümüzde minyatürleşme ile ısı transfer alanının azaldığı ve dolayısıyla son derece yüksek ısı akılarına sahip elektronik bileşenlerin soğutulmasında büyük bir öneme sahiptir. Bu çalışmada ise bilgisayarlarda da kullanılan ve ısı üretim miktarı oldukça fazla olan mikroçiplerin soğutulmasının iyileştirilmesi incelenmiştir. Bu amaçla, üç tarafı kapalı ve bir tarafı açık kesiti dikdörtgen olan kanallar içerisindeki sur ve dikdörtgen şeklinde olmak üzere iki farklı desene sahip 1000 W/m 2 sabit ısı akılı bakır plakalı yüzeylerin tek bir hava jeti akışı ile soğutulmasının sayısal araştırması yapılmıştır. Sayısal araştırma, zamandan bağımsız ve üç boyutlu olarak enerji ve Navier Stokes denklemlerinin k-ε türbülans modelli Ansys-Fluent bilgisayar programının uygulanmasıyla gerçekleştirilmiştir. Kesiti dikdörtgen olan kanalın üst ve alt yüzeyleri adyabatik iken sur ve dikdörtgen desenli yüzeylere sabit ısı akısı uygulanmıştır. Kullanılan jet akışkanı hava olup, kanala giriş sıcaklığı 300 K'dir. Çalışma için belirlenen Re sayısı aralığı 4000-10000 iken jet-plaka arası uzaklık (H/Dh) için değerlendirilen aralık ise 4-10'dur. Elde edilen sonuçlar, literatürde bulunan çalışmanın sayısal ve deneysel sonuçlarıyla karşılaştırılmış olup, birbirleriyle uyum içerisinde oldukları görülmüştür. Sonuçlar, sur ve dikdörtgen şeklindeki her bir desenli yüzey için ortalama Nu sayısı ve yüzey sıcaklığının değişimi olarak sunulmuştur. Farklı H/Dh oranları ve Re sayıları için kanal boyunca jet akışın sıcaklık, hız ve akım çizgisi konturu dağılımları sur ve dikdörtgen desenli yüzeyler için değerlendirilmiştir. Ayrıca, çalışmada her iki desenli geometride tüm yüzeyler için ortalama Nu sayısı, yüzey sıcaklığı ve jet akışın kanaldan çıkış sıcaklık değerleri analiz edilmiştir. Re=4000 ve H/Dh=4 için sur desenli yüzeylere göre dikdörtgen desenli yüzeylerde %31.45 daha yüksek ortalama Nu sayısı değeri elde edilmiştir.

show abstract

Experimental study of aero-thermal heat sink performances subjected to impinging air flow

Cited by 11 publications

References 18 publications

Experimental investigation on controlled cooling by coupling of thermoelectric and an air impinging jet for CPU

Experimental investigation on controlled cooling by coupling of thermoelectric and an air impinging jet for CPU

Design and Experimental Evaluation of Innovative Wire-to-Plane Fins’ Configuration for Atmosphere Corona-Discharge Cooling Devices

Study of cooling of the varied designed warmed surfaces with an air jet impingement

Contact Info

Product

Resources

About