Search results

IIR document

Extention of the predictive E-PPR78 equation of state to freon-containing systems.

• Author(s) : JAUBERT J-N., PRIVAT R., COQUELET C.
• Publication date: 2017/04/23
• Languages : English
• Source: 5^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
• Formats : PDF

IIR document

Evaluation of lower GWP alternative R-473A for R-23 in ultra-low temperature refrigeration applications.

• Author(s) : NAYAK G., PETERSEN M., KUJAK S., KOLDA M., KOHOUTEK T.
• 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

Energy, exergy and environmental (3E) analysis of low GWP refrigerants in cascade refrigeration system for low temperature applications.

• Author(s) : BUTT S. S., PERERA U., MIYAZAKI T., THU K., HIGASHI Y.
• Publication date: 2024/04
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 160
• Formats : PDF

IIR document

THE EXPERIMENTAL AND THEORETICAL RESEARCH OF THERMAL PROPERTIES OF REFRIGERANTS R23, R116 AND AZEOTROPIC MIXTURE R23-R116.

• Author(s) : DZELEZNY V. P., CATCHURCA Ju. A., PONOMARYEVA O. P.
• Publication date: 1991/08/10
• Languages : English
• Keywords : R23, Calculation, Measurement, R116, Thermodynamic property, Azeotropic mixture, Refrigerant
• Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
• Formats : PDF

IIR document

Pool boiling heat transfer of R116 at various pressures.

• Author(s) : BAO J., GONG M., SUN Z., et al.
• Publication date: 2009/06/23
• Languages : English
• Keywords : Pool boiling, Copper, Heat transfer, R116, Plane surface, Expérimentation, Refrigerant
• Source: 3^rd Conference on Thermophysical Properties and Transfer Processes of Refrigerants
• Formats : PDF

IIR document

THE VISCOSITY AND HEAT CONDUCTION OF REFRIGERANTS R23, R116 AND R134A IN LIQUID PHASE.

• Author(s) : DZELEZNY V. P., POTAPOV M. D., VLADIMIROV D. A.
• Publication date: 1991/08/10
• Languages : English
• Keywords : Viscosity, Thermal conductivity, R23, R134a, Calculation, Measurement, Liquid, R116, Refrigerant
• Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
• Formats : PDF

Reaction stoichiometry for combustion of fluoroethane blends.

• Author(s) : TAKIZAWA K., TAKAHASHI A., TOKUHASHI K., et al.
• Publication date: 2006/06/25
• Languages : English
• Keywords : Velocity (fluids, gases), R134a, Measurement, R152a, R125, R116, Mixture, Environment, Refrigerant, Combustion
• Source: ASHRAE Transactions. 2006 Annual Meeting, Quebec City, Canada. Volume 112, part 2 + CD-ROM.

IIR document

Energetic and exergetic performance analysis of Bethe-Zeldovich-Thompson (BZT) fluids in geothermal heat pumps.

• Author(s) : OZCAN O., OZGENER O.
• Publication date: 2011/12
• Languages : English
• Keywords : Thermodynamics, Rc318, R218, Geothermy, Exergy, Energy, Calculation, R116, Heat pump, COP, Refrigerant
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 8
• Formats : PDF

IIR document

Vapour-liquid equilibria of the (hexafluoroethane + 1,1,1-trifluoroethane) binary system from 258 to 343 K up to 3.89 MPa.

• Author(s) : MADANI H., VALTZ A., COQUELET C., et al.
• Publication date: 2009/09
• Languages : English
• Keywords : Vapour pressure, R143a, Equilibrium, Calculation, Liquid-vapour, R116, Binary mixture, Expérimentation, Equation of state, Refrigerant
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 6
• Formats : PDF

IIR document

Performance of R170 mixtures as refrigerants for refrigeration at -80°C temperature range.

• Author(s) : GONG M., SUN Z., WU J., et al.
• Publication date: 2009/08
• Languages : English
• Keywords : Refrigerating system, R23, Measurement, Low temperature, R170, R116, Performance, Cascade system, Azeotropic mixture, Expérimentation, Refrigerant
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 5
• Formats : PDF

IIR document

Thermodynamical properties of binary azeotropes of ozone-nondepleting refrigerants.

• Author(s) : ONISCHENKO V. P., ZHELEZNYJ V. P., VLADIMIROV B. P.
• Publication date: 1995/08/20
• Languages : English
• Keywords : R23, R134a, Calculation, Measurement, R32, R152a, R125, R116, Thermodynamic property, Substitute, Binary mixture, Azeotropic mixture, Refrigerant
• Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
• Formats : PDF

IIR document

Experimental determination of phase diagram and modelling: application to refrigerant mixtures.

• Author(s) : COQUELET C., RICHON D.
• Publication date: 2009/11
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 7
• Formats : PDF

Prediction of homogeneous azeotropes for binary HFC and HC refrigerant mixtures.

• Author(s) : DONG X. Q., GONG M. Q., ZHANG Y., et al.
• Publication date: 2008/04/05
• Languages : English
• Source: Cryogenics and refrigeration. Proceedings of ICCR'2008.

2008 Appendix D for gas chromatograms for ARI Standard 700-2006 - Informative.

• Author(s) : AHRI
• Publication date: 2008
• Languages : English

IIR document

PVTx and VLE properties of refrigerant mixtures from isochoric and Burnett experiments.

• Author(s) : DI NICOLA G., GIULIANI G., POLONARA F., et al.
• Publication date: 2005/08/02
• Languages : English
• Source: Commercial Refrigeration. Thermophysical Properties and Transfer Processes of Refrigerants. Proceedings of the IIR International Conferences.
• Formats : PDF

A surprising increase in the emissions of trichlorofluoromethane (R11) since 2012

An article published in Nature underlines the unexpected and persistent increase in global emissions of ozone-depleting R11.

• Publication date : 2018/06/22
• Subjects: Regulation

Reducing the environmental impact of ultra-low temperature refrigeration systems

Ultra-low temperature (ULT) refrigeration systems often use very high-GWP HFCs. Yet, ULT systems are excluded from the scope of the regulations aimed at phasing-down HFCs. An IJR paper reviews the most promising...

• Publication date : 2020/04/05
• Subjects: Environment, HFCs alternatives

ICR2011 highlights: cooling particle detectors

Cooling systems for particle detectors attracted interest at the IIR’s Congress in Prague in August 2011. These highly specific applications have very strict requirements compared with standard cooling systems: refrigerants should be resistant to...

• Publication date : 2012/02/21

An ejector refrigeration system optimised for sub-zero temperatures on fishing vessels

Large amounts of diesel fuel are used to power fishing vessels engines and on-board refrigeration systems. In a recent theoretical study, an energy-efficient sub-zero refrigeration system proposed based on a...

• Publication date : 2021/05/31
• Subjects: Technology

An award-winning industrial dairy using an integrated heat pump system

A recent case study examined the energy consumption and system performance of an innovative integrated heat pump system of a dairy located in Norway. This dairy was among the winning projects of the 2019 “Heat...

• Publication date : 2021/03/29
• Subjects: Environment, Technology

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

Honeywell CFC destruction plan

Honeywell has begun destroying its inventories of CFCs and CFC blends: the company says it has already destroyed over 12 000 kg of R11.

• Publication date : 2012/06/21

Latest natural refrigerant market trends presented at Atmosphere Europe

According to the Shecco study, to date (2013), in Europe, there are 2881 CO2 transcritical systems installed, which is a significant increase of 116% compared to 2011.

• Publication date : 2013/11/14
• Subjects: Figures, economy

Agreeing frozen fish dates sparks hot debate

The new EU Regulation 1169/2011 on the provision of food information to consumers (FIC) shall apply from December 13, 2014. Under the new rules, the first date on which a fish was frozen must be labelled on pack.

• Publication date : 2014/10/21

Energy saving initiatives for cooling in data centres

In January 2021, Europe’s leading cloud and data centre operators signed the Climate Neutral Data Centre Pact, a self-regulatory initiative to become climate neutral by 2030. According to recent studies, free...

• Publication date : 2021/02/25
• Subjects: Environment, Technology

Illegal production and use of CFC-11 in China

A report published by the EIA reveals that some Chinese companies still use CFC-11 in the foam blowing industry.

• Publication date : 2018/08/23
• Subjects: Regulation

AHRI releases March 2023 US heating and cooling equipment shipment data

AHRI provides monthly data on heating and cooling equipment shipped by US manufacturers in the US market. The data provided covers the two months prior to the month of release....

• Publication date : 2023/06/05
• Subjects: Figures, economy

Midea launches R290 split ACs on the European market

In autumn 2021, Midea, corporate member of the IIR, began marketing R290 split air-conditioning units in Europe. Further imports are planned for early 2022. 

• Publication date : 2021/12/15
• Subjects: HFCs alternatives

Cold chain storage

There has been a clear improvement in the efficiency of cold stores in the UK over the past 10 years with a 7% increase in specific energy consumption according to a recent UK bench-marking survey. However, bridging the gap between efficiency...

• Publication date : 2005/07/19

Cryogenic applications: India

India is developing semi-cryogenic propulsion technology using kerosene as a propellant to enhance its capability to launch satellites in the 6-tonne class. The technology utilizes liquid oxygen and aviation-grade kerosene instead of liquid...

• Publication date : 2010/05/27

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

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)