Steady and unsteady air impingement heat transfer for electronics cooling applications

Name: Steady and unsteady air impingement heat transfer for electronics cooling applications
Author: Arık, Mehmet, Sharma, R., Lustbader, J., He, X.

İsim	Steady and unsteady air impingement heat transfer for electronics cooling applications
Yazar	Arık, Mehmet, Sharma, R., Lustbader, J., He, X.
Basım Tarihi:	2013
Basım Yeri	- ASME
Konu	Heat transfer, Reynolds number, Jets, Cooling, Temperature, Computer cooling
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1528-8943
Kayıt Numarası	a97d56bc-48a8-44fe-8b12-f8e407b43088
Lokasyon	Mechanical Engineering
Tarih	2013
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	This paper focuses on two forced convection methods—steady jet flow and pulsating flow by synthetic jets—that can be used in applications requiring significant amounts of heat removal from electronics components. Given the dearth of available data, we have experimentally investigated steady jets and piezoelectrically driven synthetic jets that provide pulsating flow of air at a high coefficient of performance. To mimic a typical electronics component, a 25.4-mm × 25.4-mm vertical heated surface was used for heat removal. The impingement heat transfer, in the form of Nusselt number, is reported for both steady and unsteady jets over Reynolds numbers from 100 to 3000. The effect of jet-to-plate surface distance on the impingement heat transfer is also investigated. Our results show that synthetic jets can provide significantly higher cooling than steady jets in the Reynolds number range of 100 to 3000. We attribute the superior performance of synthetic jets to vortex shedding associated with the unsteady flow.
DOI	10.1115/1.4024614
Cilt	135

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Steady and unsteady air impingement heat transfer for electronics cooling applications

Yazar Arık, Mehmet, Sharma, R., Lustbader, J., He, X.

Basım Tarihi 2013

Basım Yeri - ASME

Konu Heat transfer, Reynolds number, Jets, Cooling, Temperature, Computer cooling

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1528-8943

Kayıt Numarası a97d56bc-48a8-44fe-8b12-f8e407b43088

Lokasyon Mechanical Engineering

Tarih 2013

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin This paper focuses on two forced convection methods—steady jet flow and pulsating flow by synthetic jets—that can be used in applications requiring significant amounts of heat removal from electronics components. Given the dearth of available data, we have experimentally investigated steady jets and piezoelectrically driven synthetic jets that provide pulsating flow of air at a high coefficient of performance. To mimic a typical electronics component, a 25.4-mm × 25.4-mm vertical heated surface was used for heat removal. The impingement heat transfer, in the form of Nusselt number, is reported for both steady and unsteady jets over Reynolds numbers from 100 to 3000. The effect of jet-to-plate surface distance on the impingement heat transfer is also investigated. Our results show that synthetic jets can provide significantly higher cooling than steady jets in the Reynolds number range of 100 to 3000. We attribute the superior performance of synthetic jets to vortex shedding associated with the unsteady flow.

DOI 10.1115/1.4024614

Cilt 135