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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

Simulación del desempeño energético de sistemas de climatización con sistema de generación tipo chiller y unidades de volumen de refrigerante variable como medida de ahorro en el diseño.

Energy performance simulation of air conditioning systems with chiller type generation system and variable refrigerant flow units allowing savings in the design.

• Author(s) : BALBIS MOREJON M., TOVAR OSPINO I., BARROS ÁLVAREZ M., et al.
• Publication date: 2016/05/03
• Languages : Spanish
• Keywords : Economy, Chiller, Simulation, Energy efficiency, Air conditioning
• Source: CYTEF 2016. VIII Congreso Ibérico y VI Congreso Iberoamericano de las Ciencias y Técnicas del Frío, Coimbra-Portugal, 3-6 mayo, 2016.
• Formats : PDF

Sviluppo di chillers a basso GWP.

Development of low GWP chillers.

• Author(s) : ACHAICHIA N., MATTEO G.
• Publication date: 2016/09
• Languages : Italian
• Keywords : R1234yf, Low pressure, Low GWP, Chiller, R1234ze, Development
• Source: Industria & Formazione - vol. 40 - n.403
• Formats : PDF

Principi di base del condizionamento dell'aria. Contenuto d'acqua del circuito idraulico da abbinare correttamente ad un chiller. 180a lezione.

Basic principles of air conditioning: The water content of the hydraulic circuit must be correctly adapted to a chiller. Lesson 180.

• Author(s) : FANTONI P.
• Publication date: 2017
• Languages : Italian
• Keywords : Operation, Chiller, Recommendation, Air conditioning, Water circuit
• Source: Industria & Formazione - vol. 41 - n.406
• Formats : PDF

Diagnóstico energético em sistema de água gelada (chillers).

Energy diagnosis of a chilled water system (chiller)

• Author(s) : SILVA A. da Jr., GARCÍA M. A., MENDES N., et al.
• Publication date: 2016/05/03
• Languages : Portuguese
• Source: CYTEF 2016. VIII Congreso Ibérico y VI Congreso Iberoamericano de las Ciencias y Técnicas del Frío, Coimbra-Portugal, 3-6 mayo, 2016.
• Formats : PDF

Magnetic levitation chiller technology.

• Author(s) : NIGAM S.
• Publication date: 2016/07
• Languages : English
• Keywords : Chiller, Compression system, Magnetic property, Performance, Levitation, Case study
• Source: Air Conditioning and Refrigeration Journal - vol. 19 - n. 4
• Formats : PDF

Low GWP chillers development.

• Author(s) : ACHAICHIA N., MATTEO G.
• Publication date: 2015/06/12
• Languages : English
• Keywords : Chiller, Substitute, Performance, Refrigerant, Centrifugal compressor
• Source: Le ultime tecnologie del freddo e del condizionamento. Atti del 16° Convegno Europeo: June 12-13, 2015, Milano, Italia.
• Formats : PDF

IIR document

A practical chiller fault diagnosis method based on discrete Bayesian network.

• Author(s) : WANG Y., WANG Z., HE S., et al.
• Publication date: 2019/06
• Languages : English
• Keywords : Detection, Modelling, Anomaly, Chiller
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 102
• Formats : PDF

High performance chiller plant design.

• Author(s) : BHOWMICK S., SAHAY R.
• Publication date: 2016/01
• Languages : English
• Keywords : Plant (equipment), Office, Energy consumption, Building, Design, Chiller, Performance, Case study
• Source: Air Conditioning and Refrigeration Journal - vol. 19 - n. 1
• Formats : PDF

IIR document

Dynamic modeling of water-cooled commercial centrifugal chillers.

• Author(s) : LOSKILL F. W., HUGHES M., GARIMELLA S.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Modelling, Chiller, Centrifugal compressor, Thermodynamic cycle, COP, Simulation
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Inlet-air cooling system with centrifugal-chiller module.

• Author(s) : SAKAI M., TSUJI K., HIDAKA K., et al.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Chiller, Cooling, Air, Development, Control (generic), Centrifugal compressor
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

Principi di base del condizionamento dell'aria. Principali caratterische dei chiller. 171a lezione.

Basic principle of air conditioning. Main features of chillers. 171st lesson.

• Author(s) : FANTONI P.
• Publication date: 2016/03
• Languages : Italian
• Source: Industria & Formazione - vol. 40 - n.397
• Formats : PDF

Application of permanent magnet shaft to chillers of air conditioning system.

[In Chinese. / En chinois.]

• Author(s) : LIU X.
• Publication date: 2014/06
• Languages : Chinese
• Keywords : Noise, Friction, Magnet, Chiller, Magnetism, Air conditioning
• Source: HV & AC - vol. 44 - n. 291
• Formats : PDF

Energy audit of a chiller system for retrofit.

• Author(s) : ROHANKAR S.
• Publication date: 2015/01
• Languages : English
• Keywords : Energy consumption, Efficiency, Chiller, India, Case study, Retrofitting
• Source: Air Conditioning and Refrigeration Journal - vol. 18 - n. 1
• Formats : PDF

IIR document

Cost-sensitive and sequential feature selection for chiller fault detection and diagnosis.

• Author(s) : YAN K., MA L., DAI Y., et al.
• Publication date: 2018/02
• Languages : English
• Keywords : Sensor, Chiller, Expérimentation, Detection, Default
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 86
• Formats : PDF

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

Markets: Chillers

According to a recent market report by BSRIA, an estimated 200 400 units of chillers were shipped worldwide in 2004. The estimated number of centrifugal chillers was 8500 with the USA at the centre of production (3500 units equal to 41% of the...

• Publication date : 2006/01/28

Non-CFC chillers

According to the 2005 annual survey carried out by the Air-Conditioning and Refrigeration Institute (ARI) on chiller manufacturers, the replacement and conversion of CFC chillers, as specified by the Montreal Protocol in 1995 is proving to be...

• Publication date : 2005/07/19

Oil-free chillers

At the beginning of 2005, Climavenata will launch its new range of liquid chillers: the "Turbo Efficiency Climaveneta System" (Tecs), which is an oil-free chiller. The range is fitted with Danfoss-Turbocor R-134a centrifugal compressors :...

• Publication date : 2005/02/10

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

UK: Waitrose installs HFO chillers in store

Waitrose, the English supermarket chain, is testing chillers using HFO-1234ze refrigerant at its supermarket in Bromley, near London, UK.

• Publication date : 2012/02/17

Africa: a project to replace CFC chillers in Africa

A new UN Industrial Development Organisation (UNIDO) and French Global Environment Facility (FFEM) joint project aims at replacing chillers in several African countries. A survey conducted in Cameroon, Egypt, Namibia, Senegal and Sudan, identified...

• Publication date : 2009/12/09

Data centre near London upgrades with Turbomiser chillers

The site’s power usage ratio has dropped by 24%

• Publication date : 2012/09/05

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

Global scroll and absorption chillers market perspectives

According to a new report from MarketsandMarkets, the global scroll & absorption chillers market is expected to grow from USD 5.61 Billion in 2015 to USD 7.13 Billion by 2022, at a CAGR of 4.1% between 2016 and 2022.

• Publication date : 2016/09/05

Global market for absorption chillers

Global market for absorption chillers is projected to reach USD 983 million by 2020.

• Publication date : 2015/03/19

Launch of the first R1234ze free-cooling chillers

The “first to market” TurboChill free cooling chillers using low global warming potential (GWP) refrigerant R1234ze are going to be launched.

• Publication date : 2013/12/18

The Bank of England overhauls chillers

A new cooling system at the Bank of England building, in the City of London, has saved an estimated 48% on cooling energy, which translates to €190,000 a year.

• Publication date : 2016/05/24

Use of chillers in cannabis greenhouses

The legalisation of medical cannabis in several states in the US involves the development of new techniques to manage temperatures while reducing production costs.

• Publication date : 2020/02/06

US: R134a, R410A and R407C could be banned in chillers from 2025

AHRI and NRDC issue joint letter supporting EPA SNAP proposal to prohibit R134a, R410A and R407C in new chillers from 2025.

• Publication date : 2016/04/06
• Subjects: HFCs alternatives

New IIR Informatory Note (IN) on chillers and Russian version of the IN on nutrition

The IIR has just published a new Informatory Note on chillers as well as the Russian version of the IN on the Role of Refrigeration in Worldwide Nutrition already published in four other...

• Publication date : 2021/03/29

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

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

IIR member news: Star Refrigeration

Star Refrigeration soon to hit US food firms with eco-friendly low-ammonia chillers and freezers

• Publication date : 2013/09/04

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

IIR member news: Star Refrigeration

After a year’s research project into low GWP cooling, Star Refrigeration proposes a new chiller using R1234ze.

• Publication date : 2014/02/03

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

New IIR Informatory Note on Solar Cooling 

Discover the latest IIR Informatory Note that provides a detailed analysis of solar cooling: an environmentally friendly and promising technology.

• Publication date : 2020/12/22
• Subjects: Technology

The IIR Informatory Note on Solar Cooling published in Russian

The IIR has just published a Russian version of the Informatory Note on Solar Cooling. In addition to the English and French versions, other notes have recently been published in Chinese, Russian and Spanish...

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

The First Conference on the Application of HFO Refrigerants unveils its programme

The Institute of Refrigeration (IOR) has just released the programme for the Conference on the Application of HFO Refrigerants to take place in Birmingham from the 2nd to the 5th of September 2018.

• Publication date : 2018/08/02
• Subjects: Regulation

Call for papers: 2014 International Sorption Heat Pump Conference

ISHPC 2014 extends abstract deadline until September 13, 2013

• Publication date : 2013/09/03

Cold off the press: CO2 as a Refrigerant

The new IIR technical guide on the application of “CO2 as a Refrigerant" is now available from our online bookstore.

• Publication date : 2015/01/21

Member news: Latest news from Danfoss

Danfoss is improving its range of electric expansion valves and has started construction of an energy-efficient supermarket. 

• Publication date : 2022/04/29

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

Call for abstracts now open for the IIR-Gustav Lorentzen Conference 2020

Don’t miss the deadline! 14th IIR-Gustav Lorentzen Conference 2020 invites delegates to submit abstracts

• Publication date : 2019/12/19

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