Search results

Guide Vane for Thermal Enhancement of a LED Heat Sink.

• Author(s) : BYUN S., HYEON S., LEE K. S.
• Publication date: 2022/04
• Languages : English
• Keywords : Modelling, Optimization, Heat sink, LED, Thermodynamic property, Expérimentation
• Source: Energies - 15 - 7
• Formats : PDF

On the effectiveness of a nanofluid cooled microchannel heat sink under non-uniform heating condition.

• Author(s) : ANBUMEENAKSHI C., THANSEKHAR M. R.
• Publication date: 2017/02/25
• Languages : English
• Keywords : Microchannel, Heat transfer, Cooling, Heat sink, Performance, Nanofluid, Expérimentation, Heating
• Source: Applied Thermal Engineering - vol. 113

IIR document

Two-stage high temperature hybrid heat pump with parallel heat sinks.

• Author(s) : ELLINGSEN O. M., KVALSVIK K. H., BANTLE M.
• Publication date: 2018/06/18
• Languages : English
• Keywords : Ammonia-water, Heat sink, Heat pump, Hybrid system, Modelling, High temperature, Energy efficiency
• Source: 13^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
• Formats : PDF

Power electronics high performance air-cooled heat sinks integrating graphite based materials.

• Author(s) : OLIET C., MULLEN D., HOELL K., COCHRANE N., PREISHUBER-PFLUEGL F., RIGOLA J., BOUTON M., PONTRUCHER M., CASTRILLO P., SCHILLACI E., SANTOS D., MCKAY C., HALIMIC E., FREISMUTH J.
• Publication date: 2021/05
• Languages : English
• Keywords : Aircraft, Electronic component, Cooling, Cost, Heat sink, CFD, Expérimentation
• Source: 2021 Purdue Conferences. 18^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Recommended by the IIR / IIR document

Optimization of microchannel heat sink with rhombus fractal-like units for electronic chip cooling.

• Author(s) : ZHUANG D., YANG Y., DING G., HU Z.
• Publication date: 2020/08
• Languages : English
• Keywords : Electronic component, Microchannel, Heat sink, Heat exchanger, Performance, Optimization
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 116
• Formats : PDF

IIR document

Heat transfer performance of a circuit cooling heat sink with FC72 flow boiling.

• Author(s) : KIM B. Y., SONG S., KIM M. B., et al.
• Publication date: 2017/04/23
• Languages : English
• Keywords : Heat transfer coefficient, Electronic component, Cooling, Heat sink, FC-72, Expérimentation, Flow boiling
• Source: 5^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
• Formats : PDF

Experiments on Single-Phase Nanofluid Heat Transfer Mechanisms in Microchannel Heat Sinks: A Review.

• Author(s) : ENEREN P., AKSOY Y. T., VETRANO M. R.
• Publication date: 2022/04
• Languages : English
• Keywords : Review, Nanofluid, Cooling, Electronics, Heat transfer, Microchannel, Heat sink, Particle, Thermal conductivity, Corrosion
• Source: Energies - 15 - 7
• Formats : PDF

Development of a low thermal resistance water jet cooled heat sink for thermoelectric refrigerators.

• Author(s) : KARWA N., STANLEY C., INTWALA H., et al.
• Publication date: 2017/01/25
• Languages : English
• Keywords : Refrigerating equipment, Heat transfer, Thermoelectricity, Refrigerator, Heat sink, Simulation, Performance, Water
• Source: Applied Thermal Engineering - vol. 111

IIR document

Design of heat pipe heat sink used for cooling controller of inverter air conditioner.

• Author(s) : XIA G., ZHUANG D., DING G.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Heat pipe, Air conditioner, Inverter, Design, Temperature, Heat sink, Prototype, Performance, Testing, Ambient condition
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Thermal management solution for enclosed controller used in inverter air conditioner based on heat pipe heat sink.

• Author(s) : XIA G., ZHUANG D., DING G.
• Publication date: 2019/03
• Languages : English
• Keywords : Heat pipe, Air conditioner, Inverter, Temperature, Control (automatic), Cooling, Heat sink, Performance
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 99
• Formats : PDF

Numerical and experimental analysis of cooling performance of single-phase array microchannel heat sinks with different pin-fin configurations.

• Author(s) : YANG D., WANG Y., DING G., et al.
• Publication date: 2017/02/05
• Languages : English
• Keywords : Fin, Microchannel, Heat transfer, Heat sink, Heat flux, Expérimentation, Water, Pressure drop
• Source: Applied Thermal Engineering - vol. 112

Compact refrigeration system for electronics cooling based on a novel two-phase jet impingement heat sink.

• Author(s) : OLIVEIRA P. A. de, BARBOSA J. R. Jr
• Publication date: 2016/07/11
• Languages : English
• Keywords : Two-phase heat carrier, Electronic component, Vapour, Heat transfer, Cooling, Heat sink, Compression system, Optimization
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Effect of metal foam integration on the thermal regulation performance of salt hydrate-based heat sink.

• Author(s) : KOTB A., WANG S.
• Publication date: 2022
• Languages : English
• Keywords : PCM, Heat sink, Salt (generic), Hydrate, Modelling, Foam, Thermodynamic property, Thermal energy storage
• Source: 2022 Purdue Conferences. 19^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Performance comparison of mini-rectangular fin heat sinks using different coolants: supercritical CO2, water and Al2O3/H2O nanofluid. 

• Author(s) : ALEMAM A., YEHYA S. A., OMER S. A., HAMZA A., SAEED M., BERROUK A. S.
• Publication date: 2022/11
• Languages : English
• Keywords : Heat transfer, Minichannel, Heat sink, Supercritical state, CO2, Nanofluid, Electronics, Secondary refrigerant, Water, Performance, Flow rate
• Source: Energies - 15 - 22
• Formats : PDF

Thermal performance of phase change material (PCM) based pin-finned heat sinks for electronics devices: Effect of pin thickness and PCM volume fraction.

• Author(s) : ARSHAD A., ALI H. M., ALI M., et al.
• Publication date: 2017/02/05
• Languages : English
• Keywords : Thermal conductivity, Paraffin, Electronics, Passive cooling, Aluminium, Heat sink, PCM, Heat flux, Expérimentation
• Source: Applied Thermal Engineering - vol. 112

IIR conference report: Padua

 Two IIR events organized by Prof. Renato Lazzarin have just been held in Padua, Italy: - Sources/Sinks alternative to the outside Air for Heat Pump and Air-Conditioning Techniques took place on April 5-7, 2011. Heat sources and heat sinks of...

• Publication date : 2011/05/19

Micro-Innovation

Mechanical engineers at Purdue University have created a miniature device that aims to replace conventional evaporators. Cited as a "long-term solution" in technological advances, the use of existing technical know-how for the refrigeration loop...

• Publication date : 2005/07/19

Purdue conferences highlights: development of high-temperature heat pumps

High-temperature heat pumps are currently subject to intense R&D work, as illustrated by several papers presented at Purdue last year. All Purdue papers can now be downloaded from the Fridoc database.

• Publication date : 2019/02/28

Briefs: Electronic air conditioning

David Sattler, from Sattler Consulting, a Melbourne-based firm (Australia) was awarded an AUD 80000 federal government grant to further his work on a new type of air conditioner, allowing for large cooling effects (and a heating potential) with...

• Publication date : 2011/02/11

New freedom for diabetics

A portable refrigerator is designed for storing insulin has been developed and won second prize in the Emhart "create the future" contest. It fits in a jacket pocket and is powered by a rechargeable battery. It uses a Peltier device (heat pump)...

• Publication date : 2004/05/25

Micro-refrigeration

Future computer chips will probablly generate 10 times more heat than today's microprocessors and will require new types of cooling systems. Currently, computers are usually cooled thanks to fans and small finned devices called heat sinks, but the...

• Publication date : 2008/08/12

Briefs: A CO2 secondary refrigerant system to test icebreakers

Travelling through the North Pole's ice-capped seas could reduce sea transport distances between Hamburg and Osaka, Japan, or Shanghai, China, for instance, by more than 4000 nautical miles, thus allowing for great time and financial savings. The...

• Publication date : 2009/02/25

Optical refrigeration

A team in New Mexico University has created the first-ever optical cryocooler that could be applied to airborne and spaceborne sensors. It uses optical refrigeration which could enable miniaturization, an alternative to bulky mechanical...

• Publication date : 2010/05/27

Innovative solutions to reduce cooling needs for data centres

As the world’s demand for data continues to expand, the creation of new data centres poses the issue of cooling. Innovative solutions using renewable energy sources and heat recovery are presented...

• Publication date : 2020/05/27
• Subjects: Technology

For IIR members only

Heat pump efficiency at low temperatures

A study based on field data shows that heat pumps had significantly higher energy efficiency than oil or gas heating systems, particularly for outdoor temperatures above -10°C. 

• Publication date : 2023/09/22

Road to COP28. Extending the temperature range and application for heat pumps

To promote decarbonation, “high temperature heat pumps should be designed using waste heat and renewables as a driving energy, and environmentally friendly working fluids”, according...

• Publication date : 2023/05/30
• Subjects: Technology

IIR Rankine Conference 2020: Which alternative working fluids for ORC systems?

HFOs (hydrofluoroolefins), HCFOs (hydrochlorofluoroolefins) and hydrocarbons were the main alternatives to HFC245fa presented during the IIR Rankine Conference 2020.

• Publication date : 2020/09/04
• Subjects: HFCs alternatives

The latest in laptop cooling technology

The latest developments in laptop cooling technology are based on liquid cooling systems which are thermally more efficient than regular air-based systems. In the past, liquid cooling was not a practical option for laptops because there wasn’t...

• Publication date : 2013/06/25

A new efficient and portable electrocaloric cooling device

Researchers with the University of California and SRI International describe a new electrocaloric cooling device and its possible applications.

• Publication date : 2018/05/14

Neutrons provide first images of refrigerant flow

Researchers at DOE’s Oak Ridge National Laboratory have captured undistorted snapshots of refrigerants flowing through small heat exchangers, helping to further elucidate characteristics of heat transfer.

• Publication date : 2015/05/28

New IIR Informatory Note on passive cooling

The IIR’s latest Informatory Note demonstrates that passive cooling technologies can contribute significantly to reducing energy demand for air conditioning. 

• Publication date : 2022/04/29
• Subjects: Technology

New EU funded project began on October 1st, 2021: “SophiA - Sustainable off-grid solutions for pharmacies and hospitals in Africa”

With a budget of 8 million euros over four years, SophiA will develop containerized solutions for hospitals using natural refrigerants, solar thermal and photovoltaics to enable more and more African people to...

• Publication date : 2021/10/21
• Subjects: HFCs alternatives, Technology, Developing country, Environment

Participation of the IIR at COP-10

On December 6-18, 2004, over 6100 participants from 169 countries attended the 10th Conference of the Parties (COP-10) to the United Nations Framework Convention on Climate Change (UNFCCC)  held at the Rural Exhibition Center in Buenos Aires ,...

• Publication date : 2005/02/11

IIR Conference: Auckland

Innovative Equipment and Systems for Comfort and Food Preservation , an IIR conference, will be held in Auckland, New Zealand, on February 16-18, 2006. Deadlines: June 1, 2005 for abstracts and September 16, 2005 for papers. December 9, 2005:...

• Publication date : 2005/06/14

IIR Research Priorities

The IIR decided, within the framework of its Strategic Plan, to draw up a list of research priorities for the future. It hopes that these priorities will be a valuable guiding force for decision-makers in the public and private research sectors,...

• Publication date : 2005/07/19

Women in the Refrigeration and Air-conditioning Industry Report

UN Environment recently published a report on the personal experiences and achievements of women working in the refrigeration and air-conditioning industry.

• Publication date : 2019/08/29
• Subjects: General information

The IIR and the ASHRAE establish new definitions of five keywords in the refrigeration sector

For over a year, a group of experts from the International Institute of Refrigeration (IIR) and the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) have been working together to establish common definitions of...

• Publication date : 2019/03/18

Brief: Dr David Tanner

Dr David Tanner has finished a 2-year mandate as President of AIRAH (The Australian Institute of Refrigeration, Air Conditioning and Heating). Dave has paid tribute to Jennifer Pelvin (Chief Executive) and her staff and highlighted the following...

• Publication date : 2006/01/28

Statement given by Didier Coulomb, Director General of the IIR, during MOP 34

Statement Given by the Director General of the International Institute of Refrigeration (IIR) during the 34th Meeting of the Parties to the Montreal Protocol (MOP-34) in Montréal, Canada (octobre 31 –...

• Publication date : 2022/12/12
• Subjects: Technology, Developing country, Environment

26th IIR International Congress of Refrigeration - Call for abstract

Abstract submission for the 26th International Congress of Refrigeration is extended. ICR 2023 is scheduled from 21st to 25th August 2023 in Paris.

• Publication date : 2022/07/11

Rankine 2020 conference highlights opportunities and challenges for the future

The IIR Rankine 2020 – Advances in Heating, Cooling and Power Generation conference was organised by the Institute of Refrigeration UK (IOR) as an ambitious 5-day online event running across July 27-31.  It...

• Publication date : 2020/08/19
• Subjects: Technology

Ever-expanding market research resources at your fingertips

The IIR enhances its market research resources

• Publication date : 2015/05/27

IIR economic news service: the latest from our market report partners

The IIR has established partnerships with several leading market research companies, as well as with establishments that combine and provide detailed reports and global analytical studies on different sectors of the refrigeration or economic...

• Publication date : 2016/12/07

What do refrigeration, air conditioning and social media have in common? A lot!

In 2014, an awareness raising social media campaign by Stephen Gill praising the too often overlooked virtues and benefits of refrigeration caused quite a stir, going viral.

• Publication date : 2015/07/21

A new Open Access thesis section on the IIR website!

We’re happy to offer you a new online service! A link library is now available on our website.

• Publication date : 2014/12/23

Additive manufacturing of regenerators for caloric cooling

In many areas of engineering, additive manufacturing allows the production of complex and multifunctional products that could not be manufactured using traditional methods. In the...

• Last update : 2022/09/16
• Langues : French, English
• Themes : Caloric cooling (magnetocaloric, electrocaloric, elastocaloric and barocaloric cooling)

Liquefied Natural Gas: production process and cold energy recovery

Liquefied natural gas (LNG) is natural gas that has been cooled to about -160 °C and turned into a liquid to facilitate transportation and storage. A typical LNG supply chain...

• Last update : 2023/06/23
• Langues : French, English
• Themes : LNG and LPG

Additive manufacturing of heat exchangers

In the refrigeration industry, additive manufacturing (colloquially referred to as “3D printing”) makes it possible to fabricate novel, complex and potentially more energy efficient...

• Last update : 2022/09/07
• Langues : French, English
• Themes : Evaporators, condensers and other heat exchangers

Ice cream manufacturing, environmental impact and market data

From a physico-chemical point of view, ice cream is a complex, frozen multiphase mixture. The manufacturing process includes several stages of freezing which are described in this...

• Last update : 2023/06/30
• Langues : French, English
• Themes : Ice creams

Cryogenic nitrogen in the food and beverage industry

The adoption of cryogenic processes in the food and beverage industry is predominantly driven by liquid nitrogen (LIN), and it is the preferred candidate for food chilling and...

• Last update : 2023/11/07
• Langues : French, English
• Themes : Freezing of foodstuffs

Environmental impact of the ice cream industry

This summary document describes the environmental impact of ice cream manufacturing, which is mainly due to the energy consumption and refrigerants used.

• Last update : 2022/11/17
• Langues : French, English
• Themes : General information on environment (climate change, ozone depletion…)

Hydrocarbon refrigerants

Hydrocarbons such as R290 (propane), R600a (isobutane) or R1270 (propene/propylene) are low GWP non-toxic natural refrigerants with excellent thermodynamic properties. They offer an...

• Last update : 2022/06/22
• Langues : French, English
• Themes : Hydrocarbons, Containment, refrigerant charge reduction

For IIR members only

Heat pump stock in Europe

This table presents the stock of installed heat pumps, the CO2 emissions avoided and the number of jobs in the heat pump sector in Europe.

• Last update : 2021/12/14
• Langues : English
• Themes : Heat pumps, energy recovery: economics and statistics

Nanorefrigerants

Nanorefrigerants are created by adding nanoparticles in suspension to a base refrigerant. They have a thermal conductivity that is 15% to 104% higher than that of the corresponding...

• Last update : 2022/06/17
• Langues : English, French
• Themes : Nanofluids

Global warming potential (GWP) of HFC refrigerants

Using the latest updated data from UNEP’s RTOC 2022 report, we have compiled the 100-year GWP and 20-year GWP values of hydrofluorocarbon-based (HFC) refrigerants. Our table includes...

• Last update : 2023/09/15
• Langues : French, English
• Themes : HFCs

Thermophysical properties of HFC refrigerants

Thermophysical properties of over 100 HFC refrigerants, including single-component and blends.

• Last update : 2022/06/17
• Langues : English
• Themes : HFCs, HFO et HCFO, Blends

Thermophysical properties of HFO refrigerants

Thermophysical properties of over 50 HFO refrigerants, including single-component and blends.

• Last update : 2022/06/17
• Langues : English
• Themes : HFO et HCFO, Blends

Thermophysical properties of hydrocarbon refrigerants

Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.

• Last update : 2022/06/17
• Langues : English
• Themes : Hydrocarbons, Blends