Search results

IIR document

Rheology of ethylene- and propylene-glycol ice slurries: Experiments and ANN model.

• Author(s) : TRABELSI S., HAFID M., PONCET S., et al.
• Publication date: 2017/10
• Languages : English
• Keywords : Ice slurry, Ethylene glycol, Rheology, Artificial neural network, Propylene glycol, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 82
• Formats : PDF

IIR document

Experimental and numerical investigations on thermal conductivity of Al2O3/ethylene glycol water and TiO2/ethylene glycol water nanofluids.

• Author(s) : KUKREJA R., NANDYALA M.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Thermal conductivity, Ethylene glycol, Electronics, Measurement, Titanium, Alumina, Nanoparticle, Nanofluid, Expérimentation, Concentration
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Economic comparison of pumped carbon dioxide as a volatile secondary fluid against traditional glycol systems.

• Author(s) : CLARK J.
• Publication date: 2016/08/21
• Languages : English
• Keywords : Operation, Food industry, Ethylene glycol, Comparison, R744, Propylene glycol, Pressurization, Secondary refrigerant
• Source: 12^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2016). Proceedings. Édimbourg, United Kingdom, August 21st-24th 2016.
• Formats : PDF

IIR document

Dynamic desorption characteristics of propane and polyalkylene glycol lubricants.

• Author(s) : LEI B., WU Q., CHEN R., WU J.
• Publication date: 2023/09
• Languages : English
• Keywords : R290, Lubricant, Polyalkylene glycol, Desorption, Concentration, Solubility, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 153
• Formats : PDF

IIR document

New flow regimes for propylene-glycol-based ice slurry in pipes.

• Author(s) : BORDET A., PONCET S., POIRIER M., et al.
• Publication date: 2018/05/21
• Languages : English
• Keywords : Pipe, Ice slurry, Measurement, Propylene glycol, Expérimentation, Flow
• Source: 12^th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: Orford, Canada, May 21-23, 2018.
• Formats : PDF

IIR document

Experimental study of liquid phase heat capacity of dimethyl ether and triethylene glycol solution.

• Author(s) : CHEN G., ZHELEZNY V., SHESTOPALOV K., et al.
• Publication date: 2017/04/23
• Languages : English
• Keywords : R610, Heat capacity, Ethylene glycol, Calorimetry, Expérimentation, DME
• Source: 5^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
• Formats : PDF

IIR document

Refrigeration below zero °C: Adsorption chillers using water with ethylene glycol as antifreeze.

• Author(s) : SEILER J., HACKMANN J., LANZERATH F., et al.
• Publication date: 2017/05
• Languages : English
• Keywords : Ethylene glycol, Chiller, R718, Antifreeze, Adsorption, Performance, Expérimentation, Evaporation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 77
• Formats : PDF

IIR document

Adsorption-based low temperature refrigeration using water-ethylene glycol mixtures.

• Author(s) : SEILER J., HACKMANN J., LANZERATH F., et al.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Ethylene glycol, Low temperature, Heat transfer, Adsorption system, Performance, Mixture, Expérimentation, Refrigerant, Water
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Experimental investigation of thermophysical properties of ethylene glycol based secondary fluids.

• Author(s) : IGNATOWICZ M., PALM B.
• Publication date: 2023/11
• Languages : English
• Keywords : Ethylene glycol, Secondary refrigerant, Expérimentation, Freezing temperature, Thermodynamic property, Thermal conductivity, Heat capacity, Viscosity
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 155
• Formats : PDF

IIR document

PCM slurry using ammonium alum and propylene glycol for heat transportation.

• Author(s) : OTSUBO T., HIDEMA R., SUZUKI H.
• Publication date: 2022/09
• Languages : English
• Keywords : PCM, Propylene glycol, Heat transfer, Latent heat, Waste heat, Melting, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 141
• Formats : PDF

IIR document

Mutual diffusivities of difluoromethane and 2,3,3,3-tetrafluoropropylene dissolved in polyalkylene glycol lubricant.

• Author(s) : TANG X., REN G., ZHANG K., BI S.
• Publication date: 2022/07
• Languages : English
• Keywords : R32, R1234yf, Polyalkylene glycol, Lubricant, Diffusivity, Diffusion, Light, Expérimentation, Thermodynamic property
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 139
• Formats : PDF

IIR document

Molecular simulation on the interaction between polypropylene glycol dimethyl ether and trans-1233zd.

• Author(s) : YU B., YANG J., SHI J., CHEN J.
• Publication date: 2020/07
• Languages : English
• Keywords : HFO, R1233zd(E), Polypropylene, Glycol, Ether, Solubility, Polymer, Rankine, Modelling, Lubricant
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 115
• Formats : PDF

IIR document

Investigating heat transfer properties of copper nanofluid in ethylene glycol synthesized through single and two-step routes.

• Author(s) : MOHAMMADPOOR M., SABBAGHI S., ZERAFAT M. M., et al.
• Publication date: 2019/03
• Languages : English
• Keywords : Heat transfer coefficient, Ethylene glycol, Copper, Calculation, Nanofluid, Secondary refrigerant
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 99
• Formats : PDF

IIR document

Solubilities of difluoromethane (R32) in polyolester, polyvinylether, and polyalkylene glycol base oils at temperatures from 273 K to 351 K.

• Author(s) : JIA T., BI S., WU J., LI P.
• Publication date: 2020/03
• Languages : English
• Keywords : Solubility, R32, Polyolester, Polyalkylene glycol, Temperature, Oil, HFC, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 111
• Formats : PDF

Performance of R134a/Glycol mixtures for a small capacity absorption power and cooling cycle with an integrated scroll expander.

• Author(s) : MUYE J., BRUNO J. C., CORONAS A.
• Publication date: 2017/08/07
• Languages : English
• Keywords : R134a, Chiller, Absorption, Performance, Mixture, Expander, Glycol, Cycle, Cogeneration
• Source: International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.

Two-stage indirect glycol and CO2 commercial system drastically cuts refrigerant use

An award-winning store, that reduces refrigerant use by 98%, and eliminates HFCs, was recently opened in Folsom, CA, USA.

• Publication date : 2012/06/05

Gallo-Roman craft restored thanks to freeze drying.

A 32-m barge weighing 30 tonnes that sank in the Rhone around 50 AD 30 tonnes is being restored thanks to the use of polyethylene glycol, followed by freeze drying

• Publication date : 2012/08/28

CO2 applications: First commercial CO2 system in Latin America

Last April Verdemar supermarket chain inaugurated its fifth store in the suburb of Jardim Canada, Nova Lima -Minas Gerais, Brazil. It is the first Latin American supermarket that uses carbon dioxide as a refrigerant. Its Skyrack Breeze, developed...

• Publication date : 2011/02/07

Efficient mine cooling

Bluhm Burton Engineering (BBE) is currently implementing energy management ventilation and refrigeration systems for mines to reduce overall and to manage energy consumption. BBE's Director, Raymond Funnell, has underscored that there is a boom in...

• Publication date : 2008/05/13

Out of the ordinary: Vanilla and ice skating on the Eiffel Tower

Special treat for the festive season: skating on a 200 m² vanilla-perfumed rink 57 m above ground level on the Eiffel Tower, with hot wine and cakes served as refreshments. Installing the rink was a technical feat: 10 tonnes of refrigerating...

• Publication date : 2005/02/11

Briefs: Largest distribution centre in Africa

The centre, built by Woolworths in Midrand, South Africa has a surface area of 72 000 m². The 2-stage refrigeration system uses 4.2 tons of ammonia. It operates at -9°C/+32°C on the low stage while the high-stage ammonia circuit is used to chill...

• Publication date : 2008/02/12

IIR member news: Star Refrigeration chooses CO2 to cool down a beer warehouse

Star Refrigeration, collective member of the IIR, recently published a case study about a CO2 solution used to cool down a beer warehouse.

• Publication date : 2019/06/28

Briefs: CO2 systems Receive Awards in the USA

Three companies developing or using CO2, received awards in the United States in 2010: Kysor/Warren, a company based in Georgia was honoured with the 2009-2010 GreenChill Distinguished Partner Award, from the US Environmental Agency (EPA) for its...

• Publication date : 2011/02/07

Briefs: US supermarkets: CO2 gains ground

Being already largely used in Europe, CO2 refrigeration systems might see important development in North American supermarkets. The medium-size retail chain Price Chopper Supermarkets has installed a cascade system using CO2 in the low-temperature...

• Publication date : 2008/08/12

Natural refrigerants in emerging countries: South Africa

South Africa is facing an energy shortage and a rise in electricity prices. Natural refrigerants, which have important energy saving potential, are now being introduced, especially in supermarkets. Here are 2 examples: . GTZ has offered technical...

• Publication date : 2010/03/07

Cheers to that!

An innovative brewery refrigeration system that uses natural CO2 gas has been conceived by engineers from the Ziemann Group in collaboration with Axima. This system, which will be of particular interest to large plants with extensive pipe networks...

• Publication date : 2006/05/05

Briefs: Optimized freight hub

A new temperature-controlled freight hub in Christchurch International Airport, New Zealand, was opened by Hellmann Worldwide Logistics on March 12, 2009. "The facility has been predicated on environmental, efficiency and energy-conscious criteria...

• Publication date : 2009/05/18

CO2 technology for ice-skating rinks

Nowadays, the use of large amounts of ammonia in public places is restricted by regulations in several countries, for safety reasons. Hence, new skating rinks with direct ammonia systems can no longer be built, although it is thought that they...

• Publication date : 2004/11/19

HFO-1234yf news

HFO-1234yf, developed by DuPont and Honeywell as a substitute for HFC-134a in mobile air-conditioning applications in response to EU 2006/40 Directive which bans the use of refrigerants with a GWP higher than 150 in new types of vehicles by...

• Publication date : 2011/02/04

Green cooling solutions for the Olympics

VANOC, the Vancouver Organizing Committee (www.Vancouver2010.com), claims that these Olympics are the greenest ever and there are whole lists of environmentally friendlier features in the venues. And...

• Publication date : 2010/02/19

News from IIR members: Nestlé

Nestlé's confectionery production facility in Halifax, UK, has implemented an award-winning innovative ammonia heat pump plant to power its operations, cutting costs at the site by over 240 000 € per year. The system, formed by a collaborative...

• Publication date : 2011/02/07

New IIR publications: Properties of Secondary Working Fluids for Indirect Systems

This expanded 2nd edition responds to rising use of secondary refrigerant systems used in many applications. It comprises comprehensive data on a number of aqueous solutions of ethylene and propylene glycol, ethanol, glycerol, ammonia, chlorides...

• Publication date : 2010/05/27

News from IIR members: Star Refrigeration

Star Refrigeration has installed a highly efficient Azanechiller at a Scottish meat processing facility. The central pumped glycol system has a total cooling capacity of 365kW and includes pumps with variable speed drives, six ceiling...

• Publication date : 2011/08/04

IIR Member news: Star Refrigeration installs ammonia chillers in an indoor skiing facility

After 90 years of existence, indoor skiing now uses modern and energy efficient technologies. Star Refrigeration participates in this evolution with its ammonia chillers.

• Publication date : 2018/12/27

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 : English, French
• 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 : English, French
• Themes : Ice creams