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Anti-ice nucleating activity of polyphenol compounds against silver iodide.

• Author(s) : KOYAMA T., INADA T., KUWABARA C., et al.
• Publication date: 2014/10
• Languages : English
• Keywords : Ice, Silver, Antifreeze, Protein, Supercooling, Phenol, Nucleation, Iodide, Emulsion
• Source: Cryobiology - vol. 69 - n. 2

IIR document

Estimation of differential heat of dilution for aqueous lithium (bromide, iodide, nitrate, chloride) solution and aqueous (lithium, potassium, sodium) nitrate solution used in absorption cooling systems.

• Author(s) : ASFAND F., BOUROUIS M.
• Publication date: 2016/11
• Languages : English
• Keywords : Bromide, Lithium, Dilution, Differential thermal analysis, Aqueous solution, Absorption system, Sodium, Potassium, Iodide, Nitrate, Water-lithium bromide, Chloride
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 71
• Formats : PDF

IIR document

Crystallization temperature, vapor pressure, density and viscosity of lithium bromide?+?lithium iodide?+?ethylene glycol?+?water system for absorption refrigerators for automotive use.

• Author(s) : INADA T., TOMITA H., TAKEMURA F., et al.
• Publication date: 2019/04
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 100
• Formats : PDF

Analysis of supercooling activities of surfactants.

• Author(s) : KUWABARA C., TERAUCHI R., TOCHIGI H., et al.
• Publication date: 2014/08
• Languages : English
• Source: Cryobiology - vol. 69 - n. 1

IIR document

Solubility and vapor pressure characteristics of water (lithium bromide + lithium iodide + lithium nitrate + lithium chloride) system for air-cooled absorption chillers.

• Author(s) : KOO K. K., LEE H. R., JEONG S. Y., OH Y. S., PARK D. R., BAEK Y. S.
• Publication date: 1998/06/02
• Languages : English
• Keywords : Vapour pressure, Solubility, Refrigerating system, Lithium bromide, Lithium, Chiller, Absorption system, Iodide, Nitrate, Water, Chloride
• Source: Natural Refrigerants, Energy Efficiency, Cost and Safety. Natural Working Fluids '98. IIR-Gustav Lorentzen Conference.
• Formats : PDF

IIR document

Development of absorption heat pump using new working fluid.

• Author(s) : NISHIYAMA N., HUJIKURA K., SHITARA A.
• Publication date: 1995/08/20
• Languages : English
• Keywords : Operation, Lithium bromide, Lithium, Design, Absorption system, Heat pump, Performance, Mixture, Iodide, Nitrate, Testing, Development, Water, Chloride
• Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
• Formats : PDF

IIR document

ABSORPTION WORKING FLUID FOR AIR COOLED CHILLER.

• Author(s) : IIZUKA H., TAKIGAWA T.
• Publication date: 1990
• Languages : English
• Keywords : Ethylene glycol, Mass transfer, Lithium chloride, Lithium, Heat transfer, Absorption system, Thermodynamic property, Performance, Iodide, Corrosion, COP, Water-lithium bromide
• Source: Thermophysical properties of pure substances and mixtures for refrigeration.
• Formats : PDF

IIR document

Thermal stability of R-134a, R-141b, R-13I1, R-7146, R-125 associated with stainless steel as a containing material.

• Author(s) : CALDERAZZI L., COLONNA DI PALIANO P.
• Publication date: 1997/09
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 20 - n. 6
• Formats : PDF

IIR document

Measured and predicted thermodynamic properties of selected halon alternative/nitrogen mixtures.

• Author(s) : YANG J. C., VAZQUEZ I., BOYER C. I., HUBER M. L., WEBER L.
• Publication date: 1997/03
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 20 - n. 2
• Formats : PDF

IIR document

Analyse par cytométrie en flux des dommages membranaires des spermatozoïdes congelés de truite arc-en-ciel et de turbot.

Flow cytometric analysis of plasma membrane damages of rainbow trout and turbot frozen spermatozoa.

• Author(s) : OGIER DE BAULNY B., LE VERN Y., KERBOEUF D., HEYDORFF M., MAISSE G.
• Publication date: 1996/03/20
• Languages : French
• Source: Refrigeration and Aquaculture.
• Formats : PDF

IIR document

The solidification phenomenon of the supercooled water containing solid particles.

• Author(s) : OKAWA S., SAITO A., MINAMI R.
• Publication date: 2001/01
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 24 - n. 1
• Formats : PDF

IIR document

Absorption of water vapour into lithium bromide-based solutions with additives using a simple stagnant pool absorber.

• Author(s) : KIM J. S., LEE H., YU S. II
• Publication date: 1999/05
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 22 - n. 3
• Formats : PDF

Analysis of supercooling activity of tannin-related polyphenols.

• Author(s) : KUWABARA C., WANG D., ENDOH K., et al.
• Publication date: 2013/08
• Languages : English
• Source: Cryobiology - vol. 67 - n. 1

Cryopreservation by slow cooling with DMSO diminished production of Oct-4 pluripotency marker in human embryonic stem cells.

• Author(s) : KATKOV I. I., KIM M. S., BAJPAI R., et al.
• Publication date: 2006/10
• Languages : English
• Source: Cryobiology - vol. 53 - n. 2

Cryosurgical technique: assessment of the fundamental variables using human prostate cancer model systems.

• Author(s) : KLOSSNER D. P., ROBILOTTO A. T., CLARKE D. M., et al.
• Publication date: 2007/12
• Languages : English
• Source: Cryobiology - vol. 55 - n. 3

Refrigeration technologies help preserve biodiversity

The role of refrigeration in biodiversity protection is illustrated by two examples: the cryopreservation of coral larvae and the use of refrigeration to fight bee colony collapse.

• Publication date : 2019/05/29
• Subjects: General information, Environment

Carbon dioxide snow to clean spatial telescope

An interesting method to keep the Webb Space Telescope mirror, seven times larger than Hubble, spotless.

• Publication date : 2015/11/02

“eCO2”, a new high specification carbon dioxide refrigerant

Refrigerant, branded ‘eCO2’, offers sustainable sourcing and lower moisture content than current offerings, distributor claims.

• Publication date : 2014/07/09

H-fluid as an alternative to HFC-134a?

The new European Directive 2006/40 on emissions from air-conditioning systems in motor vehicles - which bans F-gases with a GWP higher than 150 (such as HFC-134a) as of 2011 for new models of cars - and Californian legislation which is putting...

• Publication date : 2006/11/15

Paris district cooling is growing

A presentation of the Paris district cooling system by François Dupoux, President-General Director of Climespace (operator of the district cooling system) during the IIR-AFF centenary conference in Paris attracted a lot of interest. Many...

• Publication date : 2008/08/12

Cooling helps eggs fight salmonella

A team from Purdue University has demonstrated that lysozyme activity could be increased by as much as 50%, thanks to the addition of carbon dioxide or to a cooling process which causes carbon dioxide to be sucked inside the shell.

• Publication date : 2012/08/03

France: Assessment of the refrigerant emissions avoided between 1993 and 2013

The commitment and engagement from most stakeholders in the “Cooling and Air Conditioning “ branch helped avoid 45 million emitted tonnes of carbon dioxide equivalent.

• Publication date : 2016/04/20

IPCC confirms HFO GWPs are less than 1

The Intergovernmental Panel on Climate Change (IPCC) has confirmed that both R1234yf and R1234ze(E) have global warming potentials below that of carbon dioxide.

• Publication date : 2014/02/24

Cryogenics 2021 highlights: applications of liquid nitrogen

Cryopreservation of biological materials to favour biodiversity and cooling of superconducting cables to allow transmission of electrical energy with zero resistance are key applications of liquid...

• Publication date : 2022/01/28

Ionocaloric cooling: a new technology under development in the US

A cooling technique using liquid-to-solid phase change fcould be an alternative to vapour compression systems, according to researchers at the University of Berkeley. 

• Publication date : 2023/01/25

European Commission launches €1 billion Green Deal call

Organised under 10 key focus areas and 20 topics, the European Green Deal aims to tackle the challenges and take advantage of the opportunities of climate change.

• Publication date : 2020/11/25
• Subjects: Technology, Environment

Another successful IIR Gustav Lorentzen conference 2016

Dedicated to natural refrigerants, mainly ammonia, carbon dioxide and hydrocarbons, Gustav Lorentzen 2016 was a great success attracting over 270 people and more than 145 papers from leading international researchers and industrialists.

• Publication date : 2016/09/14

IIR-Gustav Lorentzen Conference 2018 attracts its largest number of participants yet

With a focus on natural refrigerants, principally ammonia, carbon dioxide and hydrocarbons, the 13th conference in the series attracted the largest number of participants yet, welcoming an impressive 300 individuals from 45 different countries and...

• Publication date : 2018/07/03

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

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

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

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