Search results

Recommended by the IIR / IIR document

A3 Refrigerant R290 leak and ignition testing in whole room scale.

• Author(s) : WANG X.
• Publication date: 2020/12/07
• Languages : English
• Keywords : R290, Propane, Low GWP, Flammability, Test room, Air conditioner, Display cabinet, Refrigerant charge, Testing
• Source: 14^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2020). Proceedings. Kyoto, Japon, December 7-9^th 2020.
• Formats : PDF

A2L refrigerants leaks and ignitions testing under whole room scale.

• Author(s) : WANG X., GANDHI P.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Spleen, R455A, R452B, R32, Flammability, Expérimentation, Leakage, Air conditioning, Test room
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

A2L and A3 refrigerant testing for commercial refrigerated display cases under whole room scale.

• Author(s) : WANG X.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Low GWP, Flammability, R454C, R290, Display cabinet, Test room, Expérimentation, Standard, Propane, Leakage, Door
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

A practical calibration procedure for the balanced ambient room type calorimeter in testing the cooling capacity of room air conditioner.

• Author(s) : HANG C., ZHANG H., XU D., et al.
• Publication date: 2019/08/24
• Languages : English
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

Benchmarking risk by whole room scale leaks and ignitions testing of A2L refrigerants.

• Author(s) : AHRI
• Publication date: 2017
• Languages : English
• Formats : PDF

IIR document

Fluid choice and test standardization for magnetic regenerators operating at near room temperature.

• Author(s) : WU J., LIU C., HOU P., et al.
• Publication date: 2014/01
• Languages : English
• Keywords : Thermodynamics, Magnetocaloric cooling, Regenerator, AMR, Simulation, Magnetism, Gadolinium, Testing, Energy saving
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 37 - n. 1
• Formats : PDF

IIR document

Indoor leakage test for safety of R-290 split type room air conditioner.

• Author(s) : LI T.
• Publication date: 2014/04
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 40
• Formats : PDF

Development of an emulator-based assessment method for representative evaluation of the dynamic performance of air conditioners.

• Author(s) : GIANNETTI N., ARIYADI H., MIYAOKA Y., JEONG J., SAITO K.
• Publication date: 2022
• Languages : English
• Keywords : Performance, Air conditioning, Testing, Sensor, Test room, CFD, Heat transfer
• Source: 2022 Purdue Conferences. 19^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Repeatability and reproducibility assessment of residential heat pump performance evaluation methodologies based on CSA EXP07 and AHRI 210/240.

• Author(s) : DHILLON P., WANG X., HORTON W. T., BRAUN J. E.
• Publication date: 2022
• Languages : English
• Keywords : Testing, Domestic heat pump, Performance, Standard, Test room, Comparison, USA
• Source: 2022 Purdue Conferences. 19^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Acoustic Characterisation of an Air-To-Water Heat Pump for Different Operating Conditions: Inter-laboratory Results.

• Author(s) : BESSAC F., FUMAGALLI R., HELLGREN H., OLTERSDORF T., PEDERSEN S., FLECKL T., REICHL C.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Expérimentation, Standard, Testing, Acoustics, Air-water, Heat pump, Test room
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

IIR document

On-site room air conditioners replacement test with limited data during COVID-19 regulation periods.

• Author(s) : WAN H., HWANG Y., ANDERSEN S. O.
• Publication date: 2023/08/21
• Languages : English
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Design of cryogenic test facility for turbo-expander of different configurations for liquid helium plant.

• Author(s) : SAHU A., DAVE H.
• Publication date: 2017/05/15
• Languages : English
• Keywords : Turbine, Liquefier, Liquefaction, Design, LNG, Test room
• Source: Cryogenics 2017. Proceedings of the 14^th IIR International Conference: Dresden, Germany, Mai 15-19, 2017.
• Formats : PDF

Development of novel experimental infrastructure for collection of high-fidelity experimental data of refrigerant to air heat exchangers.

• Author(s) : SALEEM S., SARFRAZ O., BRADSHAW C. R., BACH C. K.
• Publication date: 2021/05
• Languages : English
• Keywords : Finned tube, Heat exchanger, Test room, Loop, Testing, Modelling, Evaporator, Condenser, Expérimentation
• Source: 2021 Purdue Conferences. 18^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Standard testing protocols for CO2 sensors and CO2 based demand control ventilation systems.

• Author(s) : FRASIER A., MEYERS F., ROSS D., PISTOCHINI T., ELLIS M. J.
• Publication date: 2021/05/24
• Languages : English
• Keywords : Standardization, CO2, Sensor, Air quality, Indoor environment, Ventilation, Testing, Test room, Detector
• Source: 2021 Purdue Conferences. 6^th International High Performance Buildings Conference at Purdue.
• Formats : PDF

Recommended by the IIR / IIR document

Energy analysis of door openings in vertical refrigerated display cabinets with glass doors.

• Author(s) : VALLÉE C., MAHMOUD A. M., ADHIKARI S.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Display cabinet, Testing, Test room, R290, Propane, Door, Opening, Energy efficiency, Modelling, Standard
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

Impact of failures on the performance of refrigeration systems 

An Australian study assesses the impact of failures of different refrigeration systems on their performance. Various air conditioning systems, refrigerated display cabinets and walk-in cold rooms were put to the...

• Publication date : 2022/12/12

Briefs: Evaporating tiles to cool rooms

UK Loughborough University's Zephyr project "Ceiling tiles" was finalist in the Financial Times Climate Change Challenge. The tiles draw up heat from a room which passes through a moist wick surface in the ceiling tile, achieving cooling lowering...

• Publication date : 2009/08/13

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

Cold temperatures, a potential ally against cancer

Exposure to cold temperatures can reduce tumour growth by slowing down the glucose metabolism of cancer cells. 

• Publication date : 2022/09/28
• Subjects: Technology

IIR Member news: A new Application Development center launched by Danfoss in China

Danfoss has inaugurated a new Application Development Center (ADC) for its cooling business in Haiyan, China

• Publication date : 2018/09/20

Markets: Global AC expansion

AC shipments hid a record high of 70.6 million units in 2006. US growth was particularly marked: 9 million room air conditioners (RACs) were shipped, this being 11% more than in 2005. Japan shipped 7.5 million RACs (0.5% increase compared with...

• Publication date : 2007/11/20

LHC accelerating science

The first beam in the Large Hadron Collider at CERN was steered around the full 27 km of the world's most powerful particle accelerator on September 10, 2008, in Geneva. Beams of protons circulating in opposite directions are to be brought into...

• Publication date : 2008/10/25

Trends

- The worldwide market for air conditioning was estimated by BSRIA as being 34 billion USD in 2001 and was forecast to reach 39 billion USD in 2004. The Freedonia Group predicts a rise to 56 billion USD by 2008. Fastest growth will occur in the...

• Publication date : 2005/02/11

For IIR members only

An innovation in thermoregulating clothing

Thermoregulating garments powered by solar energy and bidirectional electrocaloric devices are under development. They are said to be effective for outdoor temperatures of 12.5 to...

• Publication date : 2024/01/26
• Subjects: Technology

Solar-powered modular facade capable of cooling and heating a building

In Germany, researchers are testing a modular solar-powered facade that includes a mini heat pump for heating and cooling, and a decentralised ventilation unit with heat...

• Publication date : 2022/02/07
• Subjects: Technology

DuPont develops a new foam expansion agent

FEA-1100, DuPont’s latest foam expansion agent, has an excellent environmental profile. It is characterized by zero ozone depletion potential and low global warming potential (9.4). DuPont indicates that FEA-1100 has a short atmospheric lifetime:...

• Publication date : 2011/06/08

India tests expose AC inefficiencies at higher temperatures

In India, air conditioners are responsible for peak energy consumption in urban districts.

• Publication date : 2017/01/27
• Subjects: Figures, economy

China: what refrigerant to replace HCFCs?

In December 2011, the China Household Electrical Appliances Association (CHEAA) issued China’s first industry technology roadmap. For the refrigeration industry, the roadmap aims to increase energy efficiency by 20% by 2015, and by 2020 by another...

• Publication date : 2012/04/12

New energy saving defrost technology

A new technology which is claimed to save 1.94 billion € on supermarket refrigeration energy costs has been presented.

• Publication date : 2014/04/29

Cryoextraction techniques for better tasting wine?

A recent study in Spain suggests that freezing white grapes using low temperatures in the winemaking process, produces wines that are more aromatic than wines produced with traditional...

• Publication date : 2020/11/27

What’s next for the IIR Thermag conferences and magnetic refrigeration

Since 2005, the International Institute of Refrigeration (IIR) has been organising a biennial conference focused on magnetic cooling in room temperatures. With approximately 200 attendees discover why the latest edition of the Thermag VII...

• Publication date : 2016/10/11

IIR publications

The IIR is preparing 4 new publications that will be available by the end of 2007: - a booklet entitled Refrigeration Drives Sustainable Development which is an update of the 2002 report Refrigeration Sector Achievements and Challenges prepared...

• Publication date : 2007/08/05

SophiA project: HKA Lab test progress

SophiA HKA (Karlsruhe University of Applied Sciences) Lab test is intended to provide a better understanding of the cooling system in in different climate zones.

• Publication date : 2023/10/27

IIR member news: Johnson Controls YORK chiller optimised for R1233zd(E)

The YORK YZ magnetic bearing centrifugal chiller, produced by Johnson Controls, is said to be the first chiller fully optimized for ultimate performance with the low-global warming potential refrigerant R1233zd(E).

• Publication date : 2019/01/31

Press release: The International Institute of Refrigeration appoints Professor Judith Evans as new president of Commission C2

The International Institute of Refrigeration (IIR) is proud to announce the appointment of Judith Evans, Professor at London South Bank University, as the new president of IIR Commission C2 on food science and engineering.

• Publication date : 2016/07/12

Watch our side event at COP27

COP27 will mark the 30th anniversary of the adoption of the United Nations Framework Convention on Climate Change.

• Publication date : 2022/10/25
• Subjects: Environment

IIR conference on caloric cooling Thermag VIII: highlights

Thermag VIII was an opportunity to present new developments regarding magnetocaloric, electrocaloric and elastocaloric cooling.

• Publication date : 2018/10/18

New president of IIR Commission C2 on food science and engineering

The IIR is proud to announce the appointment of Judith Evans, Professor at London South Bank University, as the new president of IIR Commission C2 on food science and engineering.

• Publication date : 2016/07/06

IIR conference activities in 2016 show a promising choice of events

IIR conference activities in 2016 show a promising choice of events covering cutting edge refrigeration themes from refrigerants to energy issues; from cold chain sustainability to new refrigeration technologies.

• Publication date : 2016/03/02

Check out the upcoming cutting edge IIR events for 2016

IIR conference activities in 2016 show a promising choice of events.

• Publication date : 2015/12/16

Upcoming cutting-edge IIR events for 2016

IIR conference activities in 2016 show a promising choice of events covering cutting-edge refrigeration themes from refrigerants to energy issues.

• Publication date : 2016/05/25

Discover the new IIR Publications Catalogue Update 2018

Regrouping the newest publications and works of the IIR in all fields of refrigeration, the IIR Publications Catalogue Update 2018 is now available.

• Publication date : 2018/06/28

Activities of the IIR’s Commission B2 on Refrigerating Equipment

The IIR’s Commission B2, which includes 70 experts from 25 IIR member countries on all continents, is extremely active and participates in many IIR activities aimed at promoting knowledge of refrigeration technologies and their applications...

• Publication date : 2014/11/20

Spotlight on Commission B2: at the forefront of refrigerating equipment

Coordinated by the IIR Science and Technology Council, Commission B2 focuses on promoting knowledge of refrigerating equipment technologies and their applications worldwide.

• Publication date : 2015/05/15

The Cold Chain: A logistical challenge at the heart of the distribution of the COVID-19 vaccine 

Gérald Cavalier - President of the Science and Technology Council of the International Institute of Refrigeration, President of the French Association of Refrigeration, President of the Cemafroid...

• Publication date : 2020/11/23
• Subjects: Technology, General information

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)

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

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

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

Cryogenics in the pharmaceutical industry: drug design and bioavailability improvement

Research activities in the pharmaceutical sector focus primarily on developing novel drug formulations which can elicit the desired response upon being administered to the patient...

• Last update : 2023/03/10
• Langues : French, English
• Themes : Freeze-drying in biology and medicine, Cryobiology, cryomedicine: general information