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Recommended by the IIR / IIR document

The potential of water as a refrigerant - past, present and future approaches.

• Author(s) : KLEIN V., SUESS J., HESSE U.
• Publication date: 2022/06/13
• Languages : English
• Keywords : Water, R718, Chiller, Ethanol, Test rig, Expérimentation, Thermodynamic property
• Source: 15^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15^th 2022.
• Formats : PDF

IIR document

Development of a novel flow control system with arduino microcontroller embedded in double effect absorption chillers using the LiBr/H2O pair.

• Author(s) : CÉZAR K. L., CALDAS A. M. A., CORDEIRO M.C.L, DOS SANTOS C.A.C., OCHOA A. A. V., MICHIMA P.S.A
• Publication date: 2020/03
• Languages :
• Keywords : Flow, Control (automatic), Absorption, Chiller, Lithium bromide, Water, Mixture, Modelling
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 111
• Formats : PDF

IIR document

Thermodynamic analysis of a conical screw spindle compressor for R718.

• Author(s) : MOESCH T. W., PLESKUN H., KLOTSCHE K., THOMAS C., HESSE U.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Thermodynamic property, Water, R718, Chiller, Screw compressor, Calculation, Geometry, Modelling
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Water (R718) as a low-GWP alternative.

• Author(s) : MADSBOLL H., PACHAI A. C.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Natural refrigerant, Safety, Low GWP, Design, Chiller, R718, Axial compressor, Market, Water
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

Recommended by the IIR / IIR document

Novel compressor concept for R718 chillers.

• Author(s) : MOESCH T. W., STEFFENS R., SUESS J., BAUER R., KLOTSCHE K., HESSE U.
• Publication date: 2022/06/13
• Languages : English
• Keywords : R718, Screw compressor, Chiller, Heat recovery, Air conditioning, Prototype, Geometry, Modelling, Optimization, Rotor, Water
• Source: 15^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15^th 2022.
• Formats : PDF

IIR document

Innovative refrigeration cycle with R718 vapor using mechanical compression.

• Author(s) : CHAUVIN A., KANG K., TECHER A., YOUBI-IDRISSI M.
• Publication date: 2022/06/13
• Languages : English
• Keywords : R718, Water, Chiller, Energy efficiency, Expérimentation, Prototype, Thermodynamic property, Test rig, Thermodynamic cycle
• Source: 15^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15^th 2022.
• Formats : PDF

IIR document

Modeling and experimental analysis of direct contact heat exchangers for R718 refrigeration system.

• Author(s) : FAYAD R., ORTEGO SAMPEDRO E., ZOUGHAIB A., KANG K., CHAUVIN A.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Water, Natural refrigerant, R718, Modelling, Expérimentation, Heat transfer, Evaporator, Chiller, Prototype
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Heat to cold: Relevance and application of thermally driven cooling for the transformation of the energy system.

• Author(s) : FÜLDNER G., VOLMER R., DA SILVA MOREIRA A., SCHNABEL L.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Sorption system, Chiller, CO2 emission, Absorption system, Adsorption system, R718, Water, Air conditioning, Sublimation
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

Novel refrigeration cycle with continuous cooling turbo compressor and condensing ejector using water as refrigerant.

• Author(s) : SHOYAMA T., KAWANO B., MARUHASHI I., KUSAKA M., SUN H., YOSHIMOTO J., MATSUI M.
• Publication date: 2021/05
• Languages : English
• Keywords : Chiller, Water, Ejector, Compressor, R718, Expérimentation, COP, Thermodynamic cycle, Design
• Source: 2021 Purdue Conferences. 25^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Internal reversible ammonia air-to-water heat pump/chiller.

• Author(s) : NIELSEN G., RASMUSSEN C.
• Publication date: 2015/04/16
• Languages : English
• Keywords : Design, Reversibility, Chiller, Ammonia, Air-water, Heat pump, Norway
• Source: 6^th Conference on Ammonia and CO2 Refrigeration Technology. Proceedings: Ohrid, North Macedonia, April 16-18, 2015.
• Formats : PDF

IIR document

Optimal control of single stage LiBr/water absorption chiller.

• Author(s) : SABBAGH A. A., GOMEZ J. M.
• Publication date: 2018/08
• Languages : English
• Keywords : Chiller, Absorption system, Optimization, Modelling, Air conditioning, Water-lithium bromide
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 92
• Formats : PDF

Model-based feedback control of an ammonia-water absorption chiller.

• Author(s) : GOYAL A., RATTNER A. S., GARIMELLA S.
• Publication date: 2014/03/02
• Languages : English
• Keywords : Chiller, Ammonia-water, Absorption system, Heat pump, Performance, Model
• Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
• Formats : PDF

IIR document

Real operation of an innovative adsorption chiller prototype using water as refrigerant.

• Author(s) : PALOMBA V.
• Publication date: 2018/06/18
• Languages : English
• Keywords : Natural refrigerant, Silica gel, Chiller, Prototype, Adsorption system, Expérimentation, Water
• Source: 13^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
• Formats : PDF

Development of absorption chiller with output of 1 to 3°C chilled water.

• Author(s) : FUJII T., MIYAUCHI M., TAKEDA N., et al.
• Publication date: 2017/08/07
• Languages : English
• Keywords : Chiller, Absorption, Cooling capacity, Performance, Expérimentation, COP, Chilled water
• Source: International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.

IIR document

Development of a micro-scale heat exchanger based, residential capacity ammonia–water absorption chiller.

• Author(s) : STAEDTER M. A., GARIMELLA S.
• Publication date: 2018/05
• Languages : English
• Keywords : Microchannel, Chiller, Ammonia-water, Absorption, Expérimentation, COP, Heat exchanger
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 89
• Formats : PDF

Some advice for prolonging water chiller life.

Brent Hall, a temperature control specialist, gives six water treatment tips for lasting chillers performances.

• Publication date : 2017/03/07

The water chillers market within the EMEA (Europe Middle East & Africa) zone

Like in 2013, the largest market is the Middle East (2.57 millions of kW ) followed by Germany (2.48 millions of kW ), France (2.36 millions of kW ) and Italy (2.29 millions of kW ).

• Publication date : 2016/03/09
• Subjects: Figures, economy

Solar panels and a "water battery" to provide chilled water for air conditioners in an Australian university

The University of the Sunshine Coast, in Australia, has announced plans to install a giant "water battery" run by 5,800 solar panels to provide chilled water for air conditioning.

• Publication date : 2018/07/09

Chilled water cooling pads to reduce heat stress in pigs

A team of scientists at Purdue university in the USA has developed cooling pads to keep pigs cool and reduce the impact of heat stress on milk output and piglet...

• Publication date : 2023/11/28
• Subjects: Technology

Centrifugal chillers: new developments

New developments regarding centrifugal chillers include the world’s first production-scale chiller using water as a refrigerant and the world’s first photovoltaic direct driven inverter centrifugal chiller.

• Publication date : 2015/03/25

Latest research on ammonia-based absorption refrigeration systems

A recent article has reviewed literature on absorption chillers that use ammonia as a refrigerant, along with water (H2O), lithium nitrate (LiNO3), and lithium nitrate + water...

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

District cooling: Copenhagen, home of the largest absorption chiller cooling

A recent report by the City of Copenhagen, home of the largest absorption chiller cooling, network gives a glimpse of its district cooling system which uses seawater and surplus heat from the district heating network (through absorption cooling...

• Publication date : 2013/03/18

Sorption chillers

Sorption chiller technology is rapidly developing, especially that using solar energy. - As highlighted by Jacob and Kohlenbach* during the latest IIR Gustav Lorentzen Conference on Natural Working Fluids in Sydney, in Europe, numerous new...

• Publication date : 2011/02/07

Chillers: efficiency takes off

Chillers are key refrigerating systems since, according to the Department of Energy, in the US, they account for about 13% of the power consumed by the nation's buildings and 9% of the overall demand for electric power. Examples below illustrate...

• Publication date : 2008/10/25

Solar absorption air conditioning

When do you need air conditioning? When it is hot and sunny. This is why Broad Air Conditioning, China, one of the world's largest manufacturers of direct-fired absorption chillers, has been focusing on solar absorption air-conditioning systems...

• Publication date : 2006/11/15

Eco-friendly cooling for Tokyo’s Haneda Airport

The new international terminal of Haneda Airport opened in October 2010. It uses a combination of geothermal energy, solar power and cogeneration systems to reduce energy consumption and is also the first airport to use sodium sulphur (NaS)...

• Publication date : 2011/06/01

Briefs: Cool job

Cooling Burj Dubai, the world's tallest building is not without its challenges. The huge cooling plant designed by ETA M&E's district cooling division supplies chilled water for the Burj Dubai, Dubai Mall and two 5-star hotels. Inside the Burj...

• Publication date : 2010/05/27

Brief: Protrait of an optimal system

With looming commitments under the Kyoto Protocol, energy efficiency in buildings, including in art galleries, is essential. Paintings not only require an aesthetic environment, but one in which the air temperature and humidity is controlled. The...

• Publication date : 2006/05/05

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

UK: a dual purpose heat pump chiller with heat recovery

A Salisbury District Hospital’s unit has recently been equipped with an innovative high efficiency heat pump chiller.

• Publication date : 2018/02/18

Member news: Efficient Energy has been rewarded for its remarkable growth over the last 4 years

Energy Efficient, an IIR corporate member, ranked third in the latest Deloitte Technology Fast 50 in Germany. This ranking rewards companies based on the percentage increase in their revenue over the last four...

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

News from IIR members: Johnson Controls

Johnson Controls and Princess Noura bint Abdulrahman University are beating the record books with York CYK chillers. To construct what is claimed to be the world's largest chiller plant using air-cooled radiators, Johnson Controls is providing 26...

• Publication date : 2011/02/07

Corporate Members: news

- Danfoss has experienced booming sales 18% growth over the first three quarters of 2007. Sales reached 2.2 billion €. Growth in China and Latin America was particularly positive and end of year sales are expected to top 3 billion €.

• Publication date : 2008/02/12

IIR member news: Johnson Controls YORK chiller optimised for R1233zd(E)

The YORK YZ magnetic bearing centrifugal chiller, produced by Johnson Controls, is said to be the first chiller fully optimized for ultimate performance with the low-global warming potential refrigerant R1233zd(E).

• Publication date : 2019/01/31

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

Supercooling and superchilling: A solution to increased shelf life and reduced food waste?

If these technologies were combined with perfusion chilling for meat and fish, then additional benefits such as rapid cooling, low weight loss and novel products could result.

• Publication date : 2015/10/27

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

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

News from IIR members: Kinarca

Kinarca obtains ISO 22000 certification for its gel-ice machine. Bureau Veritas Certification has certified that Kinarca's Food Security system applied to the design process, manufacturing assembly and maintenance of flo-ice machines is according...

• Publication date : 2009/02/24

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

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

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