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IIR document

Sound preference development and correlation to service incidence rate.

• Author(s) : HARDESTY T., CERRATO G., FREEMAN T., et al.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Refrigerating equipment, Noise, Measurement, Quality, Sound, Performance
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Speed of sound measurements of HFO-1234ze(E) in the liquid phase.

• Author(s) : GAO L., ASOU H., HONDA T.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Measurement, Liquid, Sound velocity, R1234ze
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Development of large capacity rotary compressor with three cylinders. Second report: Vibration and sound.

• Author(s) : HIRAYAMA T., SHIDA S., HIRANO K., ITO Y., MONASRY J. F.
• Publication date: 2021/10
• Languages : English
• Keywords : Rotary compressor, Cylinder, Vibration, Sound, Prototype, Modelling
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 130
• Formats : PDF

IIR document

Compressed liquid speed of sound measurements of cis-1,3,3,3-tetrafluoroprop-1-ene (R1234ze(Z)).

• Author(s) : LAGO S., GIULIANO ALBO P. A., BROWN J. S.
• Publication date: 2016/05
• Languages : English
• Keywords : Measurement, Liquid, Sound velocity, R1234ze, High pressure
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 65
• Formats : PDF

IIR document

Measurement of sound speeds in the liquid phase of hydrochlorofluoroolefins (HCFO).

• Author(s) : NISHIYAMA T., HONDA T., GAO L., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Velocity (fluids, gases), Measurement, Liquid, R32, Sound, HCFO, Expérimentation, Refrigerant
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

A sound reduction solution of rotary compressor by experimental source analysis.

• Author(s) : ICHIHARA M., CHINEN T., HIRAYAMA T., KATO H.
• Publication date: 2022/07/15
• Languages : English
• Keywords : Sound, Inverter, Air conditioner, Residential sector, Sensory analysis, Expérimentation, Vibration, Rotary compressor, Noise, Pulsation
• Source: 2022 Purdue Conferences. 26^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Speed of sound in gaseous cis-1,3,3,3-tetrafluoropropene (R1234ze(Z)) between 307?K and 420?K.

• Author(s) : LOZANO-MARTIN D., MADONNA RIPA D., GAVIOSO R. M.
• Publication date: 2019/04
• Languages : English
• Keywords : Sound velocity, Temperature, Resonance, R1234ze, Thermodynamic property, Expérimentation, Acoustics
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 100
• Formats : PDF

IIR document

Gaseous speed of sound and virial coefficients for 2,3,3,3-tetrafluoropropene (R1234yf) + 1,1,1,2-tetrafluoroethane (R134a) binary mixture.

• Author(s) : PENG X., XU L., LI J., YANG Z., DUAN Y.
• Publication date: 2023/10
• Languages : English
• Keywords : R1234yf, Binary mixture, R134a, Sound velocity, Thermodynamic property, Expérimentation, Calculation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 154
• Formats : PDF

IIR document

Speed of sound measurement for R-1336mzz(Z) and R-1233zd(E) in the liquid phase.

• Author(s) : NISHIYAMA T., KURANARI T., GAO L., HIGASHI Y., AKASAKA R.
• Publication date: 2021/06
• Languages : English
• Keywords : R1233zd(E), Sound velocity, Liquid, Phase, Expérimentation, Pressure, Equation of state
• Source: 2^nd IIR Conference on HFO Refrigerants and Low GWP Blends
• Formats : PDF

On the enhanced acoustic design of the indoor environments: correspondence of perceptual quantities between real and simulated sound fields.

• Author(s) : VISENTIN C., PRODI N., CAPPELLETTI F., et al.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Software, Indoor environment, Design, Sound, Simulation, Expérimentation, School, Acoustics
• Source: 2018 Purdue Conferences. 5^th International High Performance Buildings Conference at Purdue.
• Formats : PDF

The mechanism discuss of periodic sound in rolling piston compressor under low operating frequency in air-conditioner system.

• Author(s) : GU H., ZHANG R., HU Y.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Resonator, Noise, Low frequency, Sound, Expérimentation, Air conditioning, Rolling piston compressor, Compressor
• Source: 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Experimental speed of sound for cis-1,3,3,3-tetrafluoropropene (R1234ze(Z)) and hexafluoropropene (R1216) in gaseous phase.

• Author(s) : PENG X., XU L., YANG Z., DUAN Y.
• Publication date: 2023/01
• Languages : English
• Keywords : Thermodynamic property, Sound velocity, R1234ze(Z), Heat pump, Organic Rankine cycle, Industrial application, Calculation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 145
• Formats : PDF

IIR document

Dipole moment and heat capacity in the ideal gas state derived from relative permittivity and speed of sound measurements for HFO-1123 and HCFO-1224yd(Z).

• Author(s) : KANO Y., KAYUKAWA Y., FUJITA Y.
• Publication date: 2020/10
• Languages : English
• Keywords : HFO, Thermodynamic property, Heat capacity, Sound velocity, Expérimentation, Modelling, Equation of state, HCFO
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 118
• Formats : PDF

IIR document

Thermodynamic properties of cis-1-chloro-2,3,3,3-tetrafluoro-1-propene [R-1224yd(Z)]: Experimental measurements of the density and speed of sound and modeling with the Patel–Teja equation of state.

• Author(s) : LAGO S., GIULIANO ALBO P. A., AKASAKA R., ROMEO R.
• Publication date: 2023/11
• Languages : English
• Keywords : Thermodynamic property, Expérimentation, Sound velocity, R1224yd(Z), Equation of state, Modelling, Compressibility
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 155
• Formats : PDF

IIR document

Compressed liquid density and speed of sound measurements and correlation of the binary mixture {carbon dioxide (CO2) + 1,1-difluoroethene (R1132a)} at temperatures from 220 K to 350 K.

• Author(s) : MENEGAZZO D., ROWANE A. J., FEDELE L., BOBBO S., LOMBARDO G., MCLINDEN M. O.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Binary mixture, R744, Expérimentation, CO2, R1132a, HFO, Equation of state, Sound velocity, Modelling, Thermodynamic property
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

Sound waves to chill ice cream

On April 15, 2004, Earth Day, Ben & Jerry's announced the development of an environmentally friendly thermoacoustic chilling prototype. Following a company-wide audit of Ben & Jerry's refrigeration uses and its impact on the environment,...

• Publication date : 2004/07/27

Sound waves to chill ice cream

On April 15, 2004: "Earth Day", Ben & Jerry's ice-cream producers announced the development of an environmentally friendly thermoacoustic chilling prototype. Following a company-wide audit of Ben & Jerry's refrigeration uses and its impact...

• Publication date : 2004/05/25

Irregularities found in Chinese factories using ammonia

Thirteen factories have been penalized for failing liquid ammonia safety checks following the leak at Weng’s cold storage plant that killed 15 people last August.

• Publication date : 2013/12/18

Cryogenic applications: cryogenic system to recover volatile organic compounds

In 2007, in France alone 12　000 tonnes of volatile organic compounds (VOCs) were released from service stations, i.e. 1% of all such emissions in France. VOCs from service stations are detrimental to health and the environment and increasingly...

• Publication date : 2010/05/27

Irregularities found in deadly ammonia leak accident in China

Investigators found that the company illegally built the workshop after completing construction of the plant's main body, blocking the fire exits, according to a statement from the Shanghai work safety supervision bureau.

• Publication date : 2013/12/09

Briefs: Thermoacoustics

A project led by the University of Nottingham aims at developing a device acting as a refrigerator, cooker and power generator, using biomass fuels such as wood. The SCORE (Stove for COoking, Refrigeration and Electricity) is based on the use of...

• Publication date : 2007/08/05

Briefs: Thermoacoustics for air conditioning

The Palo Alto Research Center (PARC), is developing a new form of refrigeration for cooling at room temperature, based on thermoacoustics, which was previously used only for cryogenic temperatures. The technology PARC developed is claimed to...

• Publication date : 2010/05/27

Novel catalysts to address overheating in hypersonic aircraft

Researchers at Australia's RMIT University have developed 3D-printed catalysts to address the challenge of overheating in hypersonic aircraft and possibly other industrial...

• Publication date : 2021/10/22
• Subjects: Technology

The first 20 SEER (Seasonal Energy Efficiency Rating)

What is claimed to be the first 20 SEER (Seasonal Energy Efficiency Rating) residential air conditioner has been introduced by Lennox Industries, USA. The XC21 air conditioner has a two-stage scroll compressor and operates on two levels: a high...

• Publication date : 2005/07/19

Oil-free chillers

At the beginning of 2005, Climavenata will launch its new range of liquid chillers: the "Turbo Efficiency Climaveneta System" (Tecs), which is an oil-free chiller. The range is fitted with Danfoss-Turbocor R-134a centrifugal compressors :...

• Publication date : 2005/02/10

Joint Irish fridge and freezer recycling scheme

Before the implementation, summer 2005, of the EU Waste Electrical and Electronic Equipment Directive (WEEE Directive), Northern Ireland's and Ireland's Environment departments are working together on a scheme to collect, treat and recycle...

• Publication date : 2004/05/25

Briefs: World's largest food park

Early 2010, the world's largest food park opened 20 km from Haridwar, Uttarakhand, India. The 95-acre Patanjali Food and Herbal Park is to provide direct employment for 7000 people. The Ministry of Food Processing Industries (MoFPI) plans to set...

• Publication date : 2011/02/04

Fermidable

In a team led by Wolfgang Ketterle, a nobel laureate, MIT (Massachusetts Institute of Technology) scientists have been the first to create "a new type of matter", a gas of atoms that shows high-temperature superfluidity. A superfluid gas can flow...

• Publication date : 2005/10/26

Briefs: Ionic Wind to Cool PCs

Kronos Advanced Technologies are developing a cooling process for personal computers based on an ionic wind pump. Ionic air propulsion is based on a principle called the corona discharge, an electrical discharge characterized by a corona, i.e. a...

• Publication date : 2007/05/04

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

ICR 2011 in Prague: a Resounding Success

The 23rd IIR International Congress of Refrigeration held in Prague, on August 21-26, 2011, was highly successful...

• Publication date : 2011/08/30

26th International Congress of Refrigeration: A Remarkable Success

The 26th International Congress of Refrigeration (ICR), held on August 21-25, 2023, left an indelible mark on the world of refrigeration, serving as a resounding success with the active participation...

• Publication date : 2023/09/04
• Subjects: Technology, Environment, General information

Member News: Daikin partners with Fujifilm to reduce noise from some of its ventilation/humidification units

The Japanese company Daikin will soon use a new technology to reduce noise in some of its ventilation and humidification units. 

• Publication date : 2022/02/28

IIR member news: Daikin launches new VRV solution

Daikin has launched a new VRV solution to meet the specific demands of city and urban locations where space is limited and customers want an invisible air conditioning solution.

• Publication date : 2015/09/20

Discover the new IIR Publications Catalogue!

Available in print and PDF version, in the IIR 2016/2017 Publications Catalogue you will find our latest and staple publications (including IIR conference proceedings), reference documents, and a list of all our Information Services.

• Publication date : 2016/06/22

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

Publish your article in the IJR

Do you have something innovative to say about refrigeration? Find out how you can publish an article in the IIR International Journal of Refrigeration (IJR).

• Publication date : 2015/09/29

MOP 27: Strong debate in the run-up to COP21

MOP 27 delegates continued firm discussions and addressed the outcomes of OEWG 36

• Publication date : 2015/11/04

News from the International Journal of Refrigeration (IJR)

The Impact Factor* of the IJR rose from 1.439 in 2010 to 1.817 in 2011!

• Publication date : 2012/09/05

ICR2023: ENOUGH, INDEE+ and SophiA conference papers are now online!

Download papers presented at ICR2023.

• Publication date : 2023/10/24

ICR 2023: It was nice to meet you at our booth!

The IIR’s booth received a large number of visitors. From regulars who came to say hello to curious onlookers drawn by the extensive display to participants looking for information, exchanges were varied and...

• Publication date : 2023/09/04

New joint IIR-FAO actions in Africa

A new phase for joint IIR-FAO actions in Africa

• Publication date : 2014/10/09

Policy brief available to download: Developing the cold chain in the agrifood sector in sub-Saharan Africa

A focus on the importance of the cold chain in reducing post-harvest losses

• Publication date : 2016/02/17

IIR Working Group on the Cold Chain in Warm Countries appoints a new chairperson

Newly appointed chairperson, Halima Thraya, will oversee and coordinate the various efforts and projects carried out by the Working Group.

• Publication date : 2015/06/03

Commission C2: paving the way on food science & engineering

Coordinated by the Science and Technology Council, Commission C2 focuses on research and breakthrough technologies related to food science and engineering.

• Publication date : 2015/04/01

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

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

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)

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…)

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

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

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

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