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IIR document

Surface tension and density of dielectric heat transfer fluids of HFE type-experimental data at 0.1 MPa and modeling with PC-SAFT equation of state and density gradient theory.

• Author(s) : VINS V., AMINIAN A., CELNY D., SOUCKOVA M., KLOMFAR J., CENSKY M., PROKOPOVA O.
• Publication date: 2021/11
• Languages : English
• Keywords : Modelling, Equation of state, Heat transfer, Surface tension, Liquid, Density, Thermodynamic property
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 131
• Formats : PDF

IIR document

State-of-the art of frost deposition on flat surfaces.

• Author(s) : LEONI A., MONDOT M., DURIER F., et al.
• Publication date: 2015/08/16
• Languages : English
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

State-of-the-art review of frost deposition on flat surfaces.

• Author(s) : LEONI A., MONDOT M., DURIER F., et al.
• Publication date: 2016/08
• Languages : English
• Keywords : Frost, Correlation, Density, Review, Plane surface, Prediction, Modelling
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 68
• Formats : PDF

IIR document

Investigation on characteristics of thin films made from two kinds of silane-couplers to control adhesion force of ice to solid surfaces.

• Author(s) : MATSUMOTO K., SAKAGUCHI T., TSUBAKI D., et al.
• Publication date: 2015/05
• Languages : English
• Keywords : Ice, Adhesion, Film, Expérimentation, Surface state
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 53
• Formats : PDF

Evaporation from a free liquid surface.

• Author(s) : LOTFI A., VRABEC J., FISCHER J.
• Publication date: 2014/06
• Languages : English
• Keywords : Liquid, Vacuum, Steady state, Surface, Model, Evaporation
• Source: International Journal of Heat and Mass Transfer - vol. 73

Experimental study of the effects of fin surface characteristics on defrosting behavior.

• Author(s) : LIANG C., WANG F., LU Y., et al.
• Publication date: 2015/01
• Languages : English
• Keywords : Fin, Expérimentation, Surface state, Defrosting, Melting, Water
• Source: Applied Thermal Engineering - vol. 75

IIR document

Measurements of correct ice adhesion forces to metal test plates in nano-scale by using SPM.

• Author(s) : MATSUMOTO K., HONDA M., MINAMIYA K., et al.
• Publication date: 2016/06
• Languages : English
• Keywords : Ice, Metal, Measurement, Adhesion, Microscopy, Surface state
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 66
• Formats : PDF

Review of the State-of-the-Art Uses of Minimal Surfaces in Heat Transfer.

• Author(s) : DUTKOWSKI K., KRUZEL M., ROKOSZ K.
• Publication date: 2022/11
• Languages : English
• Keywords : additive manufacturaring, Review, Heat transfer, Heat exchanger, Design, Surface, CFD, Simulation
• Source: Energies - 15 - 21
• Formats : PDF

IIR document

A proposed combination model for predicting surface tension and surface properties of binary refrigerant mixtures.

• Author(s) : KHOSHARAY S., MAZRAENO M. S., VARAMINIAN F., et al.
• Publication date: 2014/04
• Languages : English
• Keywords : Surface tension, Prediction, Model, Mixture, Equation of state, Refrigerant
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 40
• Formats : PDF

IIR document

Experimental and modeling investigation on surface tension and surface properties of (CH4 + H2O), (C2H6 + H2O), (CO2 + H2O) and (C3H8 + H2O) from 284.15 K to 312.15 K and pressures up to 60 bar.

• Author(s) : KHOSHARAY S., VARAMINIAN F.
• Publication date: 2014/11
• Languages : English
• Keywords : Surface tension, Temperature, Mixture, Hydrocarbon, Expérimentation, Equation of state, Water, CO2
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 47
• Formats : PDF

Film rupture and partial wetting over flat surfaces.

• Author(s) : GIANNETTI N., TRINURUK P., YAMAGUCHI S., et al.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Wettability, Plane surface, Stability, Modelling, Falling film, Film
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Surface tension measurement and modeling work for new low GWP working fluids.

• Author(s) : KONDOU C., ABBADI J. el, HOURIEZ C., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Measurement, Low GWP, Surface tension, R32, , Modelling, Binary mixture, HFO, HFC, Equation of state
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

Effect of the surface texture on the heat transfer coefficient in nucleate boiling of aqueous lithium bromide solution at low heat fluxes.

• Author(s) : MENHART F., NATZER S., RIEPL M., et al.
• Publication date: 2014/03/02
• Languages : English
• Keywords : Heat transfer coefficient, Lithium bromide, Chiller, Aqueous solution, Adsorption, Expérimentation, Surface state, Heat exchanger, Nucleate boiling
• Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
• Formats : PDF

IIR document

Measurement of food dehydration during freezing in mechanical and cryogenic freezing conditions.

• Author(s) : MULOT V., BENKHELIFA H., PATHIER D., et al.
• Publication date: 2019/07
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 103
• Formats : PDF

IIR document

Preparation and characterization of nano-scale Fe2P-based particles by surfactant-assisted high-energy ball milling.

• Author(s) : THANG N. V., DIJK N. H. van, BRUCK E.
• Publication date: 2014/09/07
• Languages : English
• Source: 6^th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VI). Proceedings: Victoria, Canada, September 7-10, 2014.
• Formats : PDF

Briefs: Chameleon tiles for energy savings

It is a well-known fact that dark surfaces absorb the sun's heat, whereas white surfaces reflect it. US Secretary of Energy, Steven Chu, considers that turning all roofs white would eliminate as much greenhouse gas emissions in 20 years as the...

• Publication date : 2010/03/07

Briefs: Hot 2009

According to data published by the World Meteorological Organization (WMO) in December 2009, the year 2009 is likely to rank in the top 10 warmest on record since the beginning of instrumental climate records in 1850. The global combined sea...

• Publication date : 2010/03/07

State of the art on the flammability of HFOs

An article recently published in the IJR reviews the flammability characteristics of 48 HFOs and blends for various experimental conditions.

• Publication date : 2020/02/05

Heat pump systems for HVAC in electric vehicles

Heat pump systems offer an energy efficient option for HVAC in electric vehicles. Recent studies present innovative technologies to further improve the heating and cooling performance of heat pump systems as...

• Publication date : 2021/01/27
• Subjects: HFCs alternatives

Zero emissions in the desert

Eckhard Gerber, a German architect, is to build office towers in Riyadh, Dubai and Bahrain that produce all their own energy. The zero emissions office building has arrived! The 68-storey state-of-the-art 322-m Burj al-Taqa ("Energy Tower") in...

• Publication date : 2007/11/20

Illegal trade in ODS

Some recent facts show the difficulty to tackle the illegal disposal of CFC appliances and CFCs and HCFCs trading issues: - The German business magazine Capital divulged that CFC-containing refrigeration appliances were discovered in two car...

• Publication date : 2008/08/12

Radiative cooling coatings that can adapt to the seasons

A novel material can be used as a coating on building’s rooftops or windows to provide radiative cooling in the summer without overcooling in the colder months. 

• Publication date : 2022/01/28
• Subjects: Technology

PCM2016 highlights: The supercooled water method: a promising technique for ice slurry generation

The following summary refers to a paper presented during the 11th Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM2016) IIR conference which took place on May 18-20 in Karlsruhe, Germany. This paper can be downloaded...

• Publication date : 2016/09/14

Pulse technology defrosts surfaces in seconds

A team of Japanese and American researchers is developing with a new, fast and efficient technology to defrost surfaces.

• Publication date : 2019/09/30

Frost detection and defrosting methods: latest advances

A recent Purdue conference paper presents the state of the art regarding methods for retarding the onset of frosting, frost detection techniques and defrosting strategies, including those based on artificial...

• Publication date : 2023/02/21

Frost mitigation methods for heat pumps and refrigeration systems

Frost growth is an important issue since defrosting can represent up to 30% of the total energy consumption of refrigerated display cabinets. Review of the various frost mitigation technologies and latest...

• Publication date : 2021/12/15
• Subjects: Technology

Earth-to-air heat exchanger for air conditioning in a Colombian tropical weather

In a recent theoretical study, a passive cooling system using an earth-to-air heat exchanger (EAHE) was modelled for the Colombian tropical weather.

• Publication date : 2021/08/02
• Subjects: Developing country, Technology

Evaporative cooling without adding humidity

Scientists at the University of Harvard have designed a prototype evaporative cooling system called Cold-SNAP that effectively cools air at low cost for both dry and humid climates.

• Publication date : 2020/05/26
• Subjects: Developing country, Technology

COVID-19 news in the HVAC&R sector

The IIR reviews the available information on the possible impact of air conditioning on the spread of COVID-19 and the recommendations for the operation and maintenance of HVAC systems. Furthermore, several...

• Publication date : 2020/04/05

Solar ejector refrigeration systems: benefits and latest developments

Two IJR articles present the latest advancements in this technology and in particular the advantages of variable geometry ejectors and low-GWP refrigerants in terms of performance.

• Publication date : 2020/06/26
• Subjects: Developing country

1st IIR International Cold and Sustainability Conference

The 1st IIR Conference on Sustainability and the Cold Chain held in Cambridge, UK, on March 29-31, 2010 attracted over 150 participants from 22 countries. Academia, public and corporate research centres, public agencies and administrations, and...

• Publication date : 2010/05/27

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

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…)

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

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