Search results

Seal mechanism of tip seal in scroll compressor.

• Author(s) : FUKUTA M., OGI D., MOTOZAWA M., et al.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Friction, Seal, Expérimentation, Leakage, Scroll compressor
• Source: 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
• Formats : PDF

Non-contacting seals in screw compressors.

• Author(s) : BEINERT M., HAUSER J.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Geometry, Seal, Design, Simulation, Flow, Leakage, Oil free compressor, Screw compressor, Compressor
• Source: 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
• Formats : PDF

Theoretical study of seal spring in a Wankel compressor.

• Author(s) : ZHANG D., WU Y., WANG J., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Individual cooling, Seal, Microtechnology, Review, Miniaturization, Air conditioning, Rotary compressor
• Source: 2016 Purdue Conferences. 23^rd International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Leakage and friction characteristics at sliding surface of tip seal in scroll compressors.

• Author(s) : FUKUTA M., SOTANI T., MOTOZAWA M.
• Publication date: 2021/05
• Languages : English
• Keywords : Scroll compressor, Seal, Leakage, Friction, Lubricant, Nitrogen, Expérimentation, Viscosity
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 125
• Formats : PDF

IIR document

A model for predicting air permeation between temperature-fluctuated refrigerated room and ambience through magnetic seal.

• Author(s) : XIA G., ZHAO D., DING G., et al.
• Publication date: 2018/07
• Languages : English
• Keywords : Pressure, Magnetism, Modelling, Air flow, Cold room, Seal
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 91
• Formats : PDF

IIR document

A comparative study of two embodiments of the limaçon rotary compressor based on theoretical modelling of apex seal dynamics and leakage.

• Author(s) : LU K., SULTAN I. A., PHUNG T. H.
• Publication date: 2023/01
• Languages : English
• Keywords : Rotary compressor, Modelling, Leakage, Volumetric efficiency, Seal, Simulation, Geometry
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 145
• Formats : PDF

IIR document

Optimization on shaft seals for a twin-screw steam compressor based on a novel uniform property region (UPR) model on discharge end-face.

• Author(s) : TIAN Y., LU J., SHEN J., et al.
• Publication date: 2018/07
• Languages : English
• Keywords : Screw compressor, Leakage, Expérimentation, Modelling, Optimization, Heat pump, Vapour, Seal
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 91
• Formats : PDF

Empirical calculation method for bypass leakage in scroll compressors.

• Author(s) : ISHII N., TSUJI T., NONOGUCHI E., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Seal, Calculation, Pressure, Leakage, Scroll compressor
• Source: 2016 Purdue Conferences. 23^rd International Compressor Engineering Conference at Purdue.
• Formats : PDF

Development of twin-screw steam compressor with water sealing.

• Author(s) : HU B., CAI H., WU D., LIANG J., WANG R. Z.
• Publication date: 2022/07/15
• Languages : English
• Source: 2022 Purdue Conferences. 26^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Evaluation of joining techniques for air-conditioning and refrigeration systems using concentration accumulation method.

• Author(s) : YU Y., CLODIC D.
• Publication date: 2014/08/02
• Languages : English
• Keywords : Refrigerating system, Generality, Seal, Leakage, Refrigerant, Concentration
• Source: 11^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
• Formats : PDF

IIR document

Hydrocarbons solutions for hermetically sealed light-commercial refrigerating systems.

• Author(s) : MELO C.
• Publication date: 2018/06/18
• Languages : English
• Source: 13^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
• Formats : PDF

Study of the leakage characteristics in the labyrinth reciprocating compressor.

• Author(s) : YANG H., ZHOU Q., WANG L., et al.
• Publication date: 2017/07/20
• Languages : English
• Keywords : Seal, CFD, Simulation, Optimization, Modelling, Leakage, Reciprocating compressor
• Source: 8th international conference on compressors and refrigeration, 2017.
• Formats : PDF

The advantages and suitability of mechanical piping systems for refurbishment and maintenance of existing and historic buildings.

• Author(s) : SANTORO S.
• Publication date: 2014/02
• Languages : English
• Keywords : Seal, Building, Piping, Pump, Retrofitting, Air conditioning, Heating
• Source: 49^th AiCARR International Conference. Historical and existing buildings: designing the retrofit. An overview from energy performances to indoor air quality.
• Formats : PDF

Assessment of leakage rate and durability of field-made mechanical joints for systems using low-GWP flammable refrigerants (ASHRAE RP-1808).

• Author(s) : ELBEL S., LAWRENCE L., RAJ S.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Seal, Low GWP, R32, Flammability, Testing, Leakage, Refrigerant
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Transient thermal and structural analysis of cylinder and bolted joints on BOG compressor during starting process.

• Author(s) : WEI L., YAN Y., LI Y., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Thermal analysis, Gas, Seal, LNG, Starting, Cylinder, Compressor
• Source: 2016 Purdue Conferences. 23^rd International Compressor Engineering Conference at Purdue.
• Formats : PDF

New low GWP replacement for R404A in hermetically-sealed systems

A new lower GWP replacement for R404A, which blends an HFO and an HFC with a “natural” refrigerant is to be made commercially available next year.

• Publication date : 2015/12/06

Water desalination thanks to freezing

A new desalination process involving freezing has been developed and offers an alternative to the shortcomings of other technologies such as distillation or inverted osmosis.

• Publication date : 2013/08/30

Briefs: Record-breaking CDM deals in Asia

The Clean Development Mechanism, established under the Kyoto Protocol, is a project and market-based mechanism that allows industrialized countries to invest in greenhouse-gas-mitigating activities in developing countries and earn certified...

• Publication date : 2006/11/15

European Commission launches €1 billion Green Deal call

Organised under 10 key focus areas and 20 topics, the European Green Deal aims to tackle the challenges and take advantage of the opportunities of climate change.

• Publication date : 2020/11/25
• Subjects: Technology, Environment

Briefs: Is air conditioning good for health?

Air conditioning (AC) could blunt the ill effects of air pollution, according to a recent study by Bell et al. from Yale University, published in Epidemiology in September 2009. The study investigated the short-term effects of particulate matter...

• Publication date : 2010/03/07

Markets: Reduced cooling and heating might improve health

Results of a study performed by Berkeley Lab. - a US Department of Energy national laboratory - suggest that operating buildings in ways designed to save energy - with indoor temperatures slightly cooler in winter and warmer in summer - does more...

• Publication date : 2009/05/18

Healthcare cold chain logistic services market: huge growth expected

Research and Markets has published a report entitled "Global Healthcare Cold Chain Logistics Market Report & Forecast (2011-2016). The report emphasizes that strong growth in the sales of temperature-sensitive healthcare products is...

• Publication date : 2011/12/29

The French Health Protection Agency (InVS) warns against Legionella outbreaks

In an official statement dated July 2004, the French Health Protection Agency called for vigilance with regards to the risk of Legionella outbreaks during summer 2004. In 2003, 1044 legionella cases were recorded in France and 129 patients died....

• Publication date : 2004/09/14

Honeywell tests new R404A replacement

Honeywell has been testing a new low-GWP refrigerant as a potential replacement for R404A in hermetically-sealed refrigeration systems

• Publication date : 2014/09/24

Refrigerated delivery vehicles: device facilitates door closing

In order to avoid unwanted temperature rises due to awkward door closing, an EPDM valve has been designed by the German company Maagtechnic.

• Publication date : 2011/10/03

Cool Carrier

At the end of October of this year Carrier Transicold introduced Deltek㤠hybrid diesel electric technology to the North American refrigerated transport industry offering more reliable, easier maintained transport refrigeration systems at the...

• Publication date : 2006/01/24

Cool Carrier

At the end of October of this year Carrier Transicold introduced Deltek hybrid diesel electric technology to the North American refrigerated transport industry offering more reliable, easier maintained transport refrigeration systems at the lowest...

• Publication date : 2005/12/22

2005 AHR Expo Innovation award winners

The winners of the third annual AHR (Air Conditioning, Heating and Refrigeration) Expo Innovation awards will be honoured during a ceremony during the 2005 AHR Expo in Orlando, Florida, on February 8, 2005. The product entries were judged for...

• Publication date : 2004/12/22

Briefs: Solar vaccine fridges for hot countries

Storing vaccines can be difficult in areas with insufficient electric grids, and renewable energies are increasingly being used as a solution. Two companies specializing in renewable energy technologies are to supply vaccine fridges to Nigeria and...

• Publication date : 2008/05/13

Brief: Kogas

Kogas had hoped to buy an extra 10 liquefied natural gas (LNG) cargoes ahead of the peak-demand winter season but is encountering a tight market. Besides annual supplies under term contracts, Kogas has recently been buying more than 30 LNG cargoes...

• Publication date : 2006/01/28

ICR2015: A stimulating environment for dynamic exchanges

With a focus on improving standards and the quality of life of many worldwide, as well as emphasising the importance of preserving the earth through the advancement of refrigeration applications and technology, ICR2015 is expected to attract a...

• Publication date : 2015/04/08

News from IIR members: Sofrigam

Sofrigam has developed new technology following extensive research over a 2-year period: a fast locking system that ensures security and sealing of its passive refrigerated packaging.

• Publication date : 2013/04/19

IIR member news: Linde

Linde uses cryogenic freezing to improve cuts.

• Publication date : 2014/10/21

Ohrid 2015: Ammonia and CO2 refrigeration technologies at the forefront

In light of the intense debate on the F-Gas regulation, its implementation worldwide, as well as proposed amendments to the Montreal Protocol, the conference provided the ideal forum for the exchange of knowledge on ammonia and CO2 technologies.

• Publication date : 2015/04/21

WGC PARIS 2015: “Growing together towards a friendly planet”

The 26th World Gas Conference (WGC), held in Paris last week, offered attendees an ideal opportunity for networking, learning and sharing information on the latest developments

• Publication date : 2015/06/09

Cooling data centres: A major economic challenge

Larger data centres can use a staggering amount of energy just to ensure the day-to-day running of electronic equipment. As a result, these data centres can produce a great deal of heat, which require large-scale cooling systems in order to...

• Publication date : 2017/03/29

IIR member news: Air Liquide joins the fight against the Covid-19 epidemic

To deal with the Covid-19 epidemic in France, the Air Liquide group, member of the IIR, has decided to produce 10,000 respirators in 50 days.

• Publication date : 2020/04/05

24th Conference of the Parties to the United Nations Framework Convention on Climate Change in Poland

The 24th Conference of the Parties to the United Nations Framework Convention on Climate Change was held in Katowice, Poland, on December 3-14. Didier Coulomb, director of the IIR, made a statement.

• Publication date : 2018/12/27
• Subjects: Regulation, Environment

The 30th Conference of the Parties to the Montreal Protocol in Quito, Equador

The 30th Conference of the Parties to the Montreal Protocol took place in Quito (Equador) on 5-9 November 2018. Didier Coulomb, Director General of the IIR, made a statement.

• Publication date : 2018/11/22
• Subjects: Regulation, HFCs alternatives

Review of F-gas regulation - IIR contribution

The IIR has responded to the European Commission consultation “Fluorinated greenhouse gases – review of EU rules (2015-20)” which aims to collect opinions and suggestions about the update of the F-gas Regulation...

• Publication date : 2020/09/06
• Subjects: Regulation, HFCs alternatives, Environment

IJR editorial: The cop on climate change: a growing presence of refrigeration issues to be consolidated

The Conference of the Parties on climate change was held in Sharm-El-Sheikh (Egypt) from Sunday 6 November to Sunday 20 November 2022. Generally speaking, this COP did not result in the decisions and actions...

• Publication date : 2023/01/23
• Subjects: Environment

Refrigeration and the IIR in the spotlight at COP 28

The Conference of the Parties on Climate Change took place in Dubai (United Arab Emirates) from 30 November to 13 December 2023. For the first time, refrigeration was given special attention. The IIR shared a...

• Publication date : 2023/12/18
• Subjects: Environment

OEWG36: Tough week of negotiations, no agreement except possible additional meetings

OEWG 36 spent much of its time focusing on moving the discussion on HFCs management forward.

• Publication date : 2015/07/29
• Subjects: Regulation

Continued IIR commitment to reduce refrigerant emissions

This week at UNESCO headquarter in Paris, the IIR is attending the Joint 10th Meeting of the Conference of the Parties to the Vienna Convention and the 26th Meeting of the Parties to the Montreal Protocol.

• Publication date : 2014/11/19
• Subjects: Regulation, HFCs alternatives

The IIR participated in the South African Road Show

The Department of Environmental affairs of the Republic of South Africa (DEA), in collaboration with UNIDO, organised a Road Show in South Africa on June 11-22, 2018.

• Publication date : 2018/08/08
• Subjects: Developing country, Regulation, HFCs alternatives

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

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)

For IIR members only

Heat pump stock in Europe

This table presents the stock of installed heat pumps, the CO2 emissions avoided and the number of jobs in the heat pump sector in Europe.

• Last update : 2021/12/14
• Langues : English
• Themes : Heat pumps, energy recovery: economics and statistics

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

Liquefied Natural Gas: production process and cold energy recovery

Liquefied natural gas (LNG) is natural gas that has been cooled to about -160 °C and turned into a liquid to facilitate transportation and storage. A typical LNG supply chain...

• Last update : 2023/06/23
• Langues : French, English
• Themes : LNG and LPG

Global warming potential (GWP) of HFC refrigerants

Using the latest updated data from UNEP’s RTOC 2022 report, we have compiled the 100-year GWP and 20-year GWP values of hydrofluorocarbon-based (HFC) refrigerants. Our table includes...

• Last update : 2023/09/15
• Langues : French, English
• Themes : HFCs

Cold storage conditions for fruits and vegetables

Practical recommendations for the cold storage of over 200 cultivars of fruits, vegetables and herbs (storage temperatures, relative humidity, storage time, controlled atmosphere...

• Last update : 2023/01/16
• Langues : French, English
• Themes : Fruit, Vegetables

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