Tag Archives: electronics cooling

ATS’ Dr. Camil Ghiu to Present at coolingZONE-13

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ATS’ own, Dr. Camil Ghiu, will be presenting “Driving Towards 0.1oC/W In Compact Air Cooled Heat Sinks: Advancements In Flow Management And Air Jet Impingement Cooling” at the Thermal Management Industry International Summit: coolingZONE-13. The Summit will be held in Boston, Massachusetts, October 21-23, 2013.

Considering the widespread use of compact systems, such as the 1U platform, and the drive to reduce costs from the system and deployment view points, air cooling continues to be sought for thermal management of such systems. The decrease in size of the new generation of electronic devices imposes a severe constraint on their incorporated thermal management devices. In this context, the development of low thermal resistance heat sinks (0.1 oC/W) for cooling compact electronics systems (1U form factor) continues to be a challenge for the thermal management community.

Dr. Ghiu’s presentation will present recent developments in designing compact heat sinks using advanced air flow management. Two main approaches will be presented, including heat sink design implementing jet impingement and sectional heat sinks. Both design approaches have been explored at ATS, and the experimental data and simulation results will be presented for further discussion.CZ13_HP

coolingZONE-13 is the premiere engineering conference for the thermal management industry. Leading experts from academia and the electronics cooling industry will present emerging technologies in the most crucial areas of thermal engineering. A wide range of topics will be discussed, including liquid cooling, advanced heat sink and heat pipe design, thermal interface materials, data center cooling and analysis, CFD, and vapor compression cooling. Keynote speakers this year are Dr. Vincent Manno of Olin College, Dr. Marc Hodes of Tufts University and Dr. Kaveh Azar, CEO of Advanced Thermal Solutions, Inc. Additional speakers and exhibitors from Laird, CD-Adapco, Aavid, Cradle-CFD, Schneider Electric, and Future Facilities will also be presenting at the conference.

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Download the New Issue of Qpedia

Qpedia_jul13_coverQpedia Thermal eMagazine, Volume 7, Issue 7, has just been released and can be downloaded at: http://www.qats.com/Qpedia-Thermal-eMagazine/Back-Issues.

This month’s featured articles include:

Thermal Performance of Heat Sinks with Heat Pipes or Vapor Chambers for Servers

Most blade servers for data and telecommunication systems use air to cool the high power chips inside. As the power level of these chips keeps increasing, the pressure is on thermal engineers to design ever higher performance air-cooled heat sinks. In recent years, advancements in manufacturing of thinner heat pipes and vapor chambers have enabled engineers to integrate the heat pipes and vapor chambers into blade server heat sinks. To illustrate their advantages, this paper includes a comparison of five different heat sinks either with embedded heat pipes or vapor chambers for their servers, all of which outperform copper heat sinks.

 

Designing Efficient Fans for Electronics Cooling Applications

In modern day equipment racks, the power consumed by the cooling fans represents a significant percentage of the overall system power budget. With the advent of data centers and their large energy costs, the issue of cooling power is exacerbated. It is, therefore, becoming crucial to design and implement methods for reducing data centers’ power consumption. This article presents a review of methods available for reducing energy consumption through increasing fan efficiency. Three main ways of improvement by optimization will be discussed: motor and electronic driver optimization, fan aerodynamic optimization and surrounding inlet/outlet equipment optimization.

 

Industry Developments: EV Battery Thermal Management

As electric vehicles and hybrid electric vehicles become more sophisticated, demands are growing for greater battery efficiency and life, and longer driving range. Achieving this must include improvements in thermal management. For car enthusiasts, this article offers some interesting battery technologies and perhaps some guidance on which models to consider for the future.

 

Technology Review: Fan Heat Sinks, 2007 – 2012

In this issue our spotlight is on fan heat sinks. There is much discussion about their deployment in the electronics industry, and these patents show some of the salient features that are the focus of different inventors.

 

& Cooling News featuring the latest product releases and buzz from around the electronics cooling industry.

 

EXCLUSIVE OFFER! Look inside for a discount code for coolingZONE-13, which will be held October 21-23, 2013 in Boston. Qpedia, coolingZONE’s official media sponsor is matching coolingZONE’s 15% discount with another 15% – saving you 30% off the registration price for the thermal management industry event of the year. Don’t miss out on this exclusive offer to Qpedia subscribers.

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ATS Offers Arrow Customers a Half-Day of Free Access to its Thermal Characterization Lab

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As part of the new distribution agreement between Arrow Electronics and Advanced Thermal Solutions, Inc., ATS is offering a half-day of free, no-obligation use of its unique Thermal Characterization Laboratory to Arrow customers. The Thermal Characterization Lab, located at ATS headquarters in Norwood, MA, allows engineers to perform thermal testing on heat sinks, fans and fan trays, PCBs, blades, enclosures, or complete systems. Experienced engineers, board and system designers can perform the tests themselves, or consult with an ATS thermal engineer at no cost during their 4 hours of laboratory time.

ATS’ Thermal Characterization Lab features a full range of research-quality instruments, including open and closed loop wind tunnels, for ambient and elevated temperature testing, all with PC-driven controls and automated data collection. The lab is also outfitted with a full array of the company’s sensor systems and thermocouples, which can be used to characterize electronic products under variable airflow and temperature conditions.

Liquid Crystal Thermography

In addition, the lab also features a JEDEC approved component thermal testing facility for conducting multitude of device level testing per JEDEC standards. The facility also provides a complete liquid crystal and IR thermography systems for non-invasive temperature mapping to 0.1oC with one micron-level spatial resolution; and a liquid cooling facility for complete testing and characterization of cold-plates, cooling effect and proof of concept testing.

 

“Most of today’s electronics have thermal situations that can turn into big problems if left alone. The easiest, lowest cost way to manage this is to conduct an accurate thermal characterization of the problem at hand,” said Kaveh Azar, Ph.D., President and CEO of Advanced Thermal Solutions, Inc. “If you have the right facility and associated know-how, you can often complete your test in a half-day, then you can readily assess what is the best thermal solution for your application. For engineers short on time and resources, we believe this free use of ATS’ Thermal Characterization Lab could be very helpful.”

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To contact ATS for more information on this opportunity, please call 781-769-2800, email ats-hq@qats.com or visit www.qats.com.

Latest Qpedia Now Available for Download

Qpedia Thermal eMagazine June 2013

Qpedia Thermal eMagazine June 2013

Qpedia Thermal eMagazine, Volume 7, Issue 6, has just been released and can be downloaded at: http://www.qats.com/Qpedia-Thermal-eMagazine/Back-Issues.

This month’s featured articles include:

Enhancing Heat Sink Performance Using Thermoelectric Coolers

With the increase in the power dissipation of components and the parallel reduction of their size, engineers and researchers across the globe have been predicting that the era of air cooling might come to an end. Even though in some applications, with very high power dissipations such as IGBTs, air cooling may not be adequate and liquid cooling is a must; air cooling will continue to be the first choice for most electronic cooling applications for many years to come. Advances in air cooling continue to extend its use and the implementation of thermoelectric coolers (TECs) in heat sink applications is one such effort.

Immersion Liquid Cooling for Servers in Data Centers

Data center designers and operators have invented many ways to improve the data center’s thermal efficiency, such as optimizing the rack layout and air conditioner location, separating cold aisles and hot aisles, optimizing the configuration of pipes and cables in under-floor plenum, introducing liquid cooling to high-power severs. While the above methods can improve the data center heat load management, they cannot dramatically reduce the Power Usage Effectiveness (PUE). This article reviews two relatively new solutions: active single-phase immersion cooling technology proposed by Green Revolution Cooling (GRC) and a passive two-phase immersion cooling technology proposed by the 3M Company.

Industry Developments: Piezoelectric Cooling

Piezoelectric fans and jets must overcome various materials, thermal and mechanical challenges to become widely used in electronics cooling, but because they consume just 1/150 of the electricity of circular fans, run with little noise and have no parts that will wear out, they remain of great interest. In this article, a number of issues are addressed, including the inverse effect of the piezoelectric phenomena and dual piezoelectric cooling jets.

Technology Review: Innovative Cold Plate Designs, 2007 – 2012

In this issue our spotlight is on innovative cold plate designs. There is much discussion about its deployment in the electronics industry, and these patents show some of the salient features that are the focus of different inventors.

& Cooling News featuring the latest product releases and buzz from around the electronics cooling industry.

Download the issue now.

Not a Qpedia subscriber? Subscribe Now for free at: http://www.qats.com/Qpedia-Thermal-eMagazine/Subscribe-to-Qpedia and see why over 18,000 engineers read Qpedia.

Did you know Qpedia also publishes a book series? The five volume set contains 248 in-depth articles, researched and written by veteran engineers. They address the most critical areas of electronics cooling, with a wide spectrum of topics and thorough technical explanation. Order Now.

Qpedia is Hot of the Press

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Qpedia Thermal eMagazine, Volume 7, Issue 5, has just been released and can be downloaded at: http://www.qats.com/Qpedia-Thermal-eMagazine/Back-Issues.

Featured articles in this issue include:

Next Generation Processor Cooling and Power Trends

CMOS semiconductor technology has been faithfully following Moore’s Law for several decades now. This Law states that the number of transistors per unit area doubles about every year [1]. This trend is likely to continue in the foreseable future. In addition, two other technical trends will accompany the roadmap of future processors: manycore chip multiprocessors and 3D integration. This article presents a review of recent predictions for future 2D and 3D manycore processors architectures.

Thermal Performance of Thin Flat Heat Pipes

As the demands for faster, smaller and multifunctional mobile devices, such as cell phones, PDAs, and netbooks, keep increasing, both system and electronic engineers are trying to integrate more functional models into smaller and thinner devices. This has forced thermal engineers into looking for more innovative and effective passive methods to cool semiconductor devices with their increasing power density. Thin flat heat pipes, whose thickness is less than 1.5 mm, have found more applications on mobile devices and certainly drawn more attention from researchers.

Industry Developments: Smartphone Cooling Systems

With increasingly processor-intensive apps being used on mobile devices, the steadily powerful chipsets in smartphones are running hotter than ever. Many desktop computers and larger, powerful computing systems use water cooling to keep their CPUs from overheating. Now smaller versions of these cooling systems are being employed in warm smart phones. While NEC was the first major smartphone company to launch a liquid-embedded smartphone, other manufacturers, such as Apple, Samsung Electronics and HTC are likely to soon follow in 2013.

Technology Review: Air Delivery Systems Utilizing Piezofan or Standard Fans

In this issue our spotlight is on air delivery systems using piezo and standard fans. There is much discussion about this and these patents show some of the salient features that are the focus of different inventors.

Cooling News featuring the latest product releases and buzz from around the electronics cooling industry.

Download the issue now.

Not a Qpedia subscriber? Subscribe Now for free at: http://www.qats.com/Qpedia-Thermal-eMagazine/Subscribe-to-Qpedia and see why over 18,000 engineers read Qpedia.