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IIR document

Assessing fresh air rate for theatre buildings using particle mass balance principle.

• Author(s) : SHI Y., LI X.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Fresh air, Building, Measurement, Controlled mechanical ventilation, Ventilation, Air quality, Particle, Expérimentation, Concentration
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

Heating/Cooling Fresh Air Using Hot/Cold Exhaust Air of Heating, Ventilating, and Air Conditioning Systems

• Author(s) : KHALED M., ALI S., JABER H., FARAJ J., MURR R., LEMENAND T.
• Publication date: 2022/03
• Languages : English
• Keywords : Air conditioning, Energy consumption, Cost, Energy efficiency, Precooling, Expérimentation, Prototype, Heat recovery, Heat exchanger, Heating, Exhaust air, Split system, Duct, Fresh air
• Source: Energies - 15 - 5
• Formats : PDF

Recommended by the IIR / IIR document

Fresh air humidification in winter using desiccant wheels for cold and dry climate regions: Optimization study of humidification processes.

• Author(s) : TU R., HWANG Y., LI J.
• Publication date: 2020/10
• Languages : English
• Keywords : Dehumidifier, Fresh air, Building, Optimization, Desiccant wheel, Multistage system
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 118
• Formats : PDF

IIR document

Humidity control and fresh air exchange in reefer containers: lowest feasible relative humidity, temperature and energy consumption.

• Author(s) : LUKASSE L., LEENTFAAR G.
• Publication date: 2020/08/26
• Languages : English
• Keywords : Container, Sea transport, Dehumidification, Fresh air, Temperature, Relative humidity, Expérimentation, Intermodal transport
• Source: 6^th IIR International Conference on Sustainability and the Cold Chain. Proceedings: Nantes, France, August 26-28 2020
• Formats : PDF

Performance analysis of a new heat pump driven multi-stage fresh air handler using solid desiccant plates.

• Author(s) : TU R., HWANG Y., MA F.
• Publication date: 2017/05/05
• Languages : English
• Keywords : Fresh air, Energy consumption, Fan, Heat pump, Plate, Expérimentation, Desiccant, Compressor, Pressure drop
• Source: Applied Thermal Engineering - vol. 117

Experimental study on the dehumidification performance of energy-saving and temperature-controlled fresh air dehumidifier for radiation air-conditioning.

[In Chinese. / En chinois.]

• Author(s) : CHEN J., LI M., HAN X., et al.
• Publication date: 2015/06
• Languages : Chinese
• Keywords : Fresh air, Dehumidification, Temperature, Performance, Testing, Energy saving, Dehumidifier, Air conditioning
• Source: Journal of Refrigeration - vol. 36 - n. 163
• Formats : PDF

IIR document

Performance investigation of a fresh air pre-handling system integrated with pipe-embedded envelopes by utilizing shallow geothermal energy.

• Author(s) : LYU W., LI X., YAN S.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Geothermy, Fresh air, China, Building, Temperature, Heat pump, Wall, Modelling, Window, Case study, Energy efficiency
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

Ventilation system design of an underground car park.

• Author(s) : GOMAA S. M., KHALIL E. E.
• Publication date: 2017/07/20
• Languages : English
• Keywords : Fresh air, CFD, Ventilation, Fan, Air quality, Air change
• Source: 8th international conference on compressors and refrigeration, 2017.
• Formats : PDF

Recommended by the IIR / IIR document

A heat recovery unit with adjustable heat exchange areas for fresh air handling.

• Author(s) : LIANG C., WANG H., FANG L., NAKAZAWA T., TANAKA T., LI X.
• Publication date: 2023/08/21
• Languages : English
• Keywords : COP, Heat recovery, Energy consumption, Cost, Variable volume, Air conditioning, Office, Energy saving, Case study, Calculation, China
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

Experimental analysis on a fresh air dehumidification unit based on desiccant heat pump.

• Author(s) : CHAI S., ZHAO Y., GE T., et al.
• Publication date: 2017/08/07
• Languages : English
• Source: International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.

Two stage regeneration of liquid desiccant using solar energy for fresh air dehumidification system.

• Author(s) : RANE M. V., MEHTA M. J.
• Publication date: 2014/03/02
• Languages : English
• Keywords : Dehumidification, Liquid, Regeneration, Air, Two-stage system, Solar energy, Desiccant
• Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
• Formats : PDF

Energy and Comfort Evaluation of Fresh Air-Based Hybrid Cooling System in Hot and Humid Climates.

• Author(s) : NARAYANAN R., SETHUVENKATRAMAN S., PIPPIA R.
• Publication date: 2022/10
• Languages : English
• Keywords : Air conditioning, Dehumidification, Thermal comfort, Desiccant system, Ventilation, Solar cooling, Hot climate, Humid climate, Hybrid system, COP, Energy saving, Modelling
• Source: Energies - 15 - 20
• Formats : PDF

IIR document

Experimental investigation on a compact fresh air humidification/dehumidification system based on desiccant coated heat pump.

• Author(s) : YANG T., GE T.
• Publication date: 2023/06
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 150
• Formats : PDF

Research on the application of rotary compressor with two independent suction pressures on fresh air-conditioning system.

• Author(s) : ZHANG L., LIU C.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Suction, Comparison, Design, Cooling capacity, Pressure, Energy efficiency, COP, Air conditioning, Rotary compressor
• Source: 2018 Purdue Conferences. 24^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Dynamic characteristics of liquid desiccant air-conditioning system.

• Author(s) : NISHIGUCHI T., TOYAMA H., YAMAGUCHI S.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Air conditioning, Liquid desiccant, Energy saving, Control (automatic), Humidity, Fresh air, Simulation
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

Shipping fresh produce overseas is a key business for airlines operating out of Los Angeles

For companies shipping fruit and vegetables by air from the West Coast of the USA to high-end supermarkets and restaurants in Europe, Asia and the Middle East, the overarching rule is: Never break the cold chain.

• Publication date : 2013/05/14

Fresh altitude

Occupants of airliner cabins will be breathing fresher air soon thanks to research being carried out in the Technical University of Denmark (DTU). Experiments were carried out in a simulated section of aircraft constructed in a climate chamber...

• Publication date : 2006/02/09

Out of ordinary: Skiing under a hot desert sun

What has been referred to as one of the "biggest refrigerators in the world", Dubai's indoor winter sports centre, designed by Acer Snowmech Consultants, spans 170 000 m3, defying nature and a stifling hot desert sun. In order to create an ideal...

• Publication date : 2005/10/26

New process combining cryogenic freezing and MAP

Air Products Freshline® Superfresh is a new methodology which combines cryogenic freezing with modified atmosphere packaging (MAP) in a specific way to extend the life and quality of food products.

• Publication date : 2015/04/19

Meeting the cooling and freshwater needs of arid countries

In a recent review article, the authors summarised research efforts in meeting cooling and freshwater demands in arid and hot climates, using available solar...

• Publication date : 2023/03/28
• Subjects: Technology

Sleep tight

A small air-conditioning system known as ‘Fresh Bed' has been invented that pumps air through a mattress, deterring bed bugs. The system has a dual function that air-conditions the bed at night at a constant temperature that can be regulated by...

• Publication date : 2006/01/24

Out of the ordinary: Keeping clay soldiers (relatively) cool

The largest group of terracotta figures ever lent by China was on display at the British Museum until April 6, 2008. The Chinese government required the 20 warriors to be kept at temperatures of 22°C + 2°C and at humidity levels of 45% RH + 8%, a...

• Publication date : 2008/05/13

Briefs: Chilled beams take off

Several MIT buildings now boast what looks like slim, fin-tubed radiators in ceiling cavities. These cooling devices are chilled beams. They use water, not air, to remove heat from a room. The potential energy reduction of using chilled beams...

• Publication date : 2010/03/07

Brief: Green towers: big can be green

The Bank of America's new 1 billion USD national headquarters in New York will be the first skyscraper to apply for a LEED (Leadership in Energy and Environmental Design) platinum rating. It will feature underfloor displacement air ventilation...

• Publication date : 2005/06/14

Berry efficient chilling

The storage and transport of berries has come a long way since they were transported by an iced horse cart in 1843. Today, growers in the Pajaro Valley from the Berry Bowl label are breaking in a brand new USD 2 million state-of-the-art flash...

• Publication date : 2005/09/30

Green buildings

Moscow City Tower is to be Europe's tallest and the world's second tallest building. The 600-m naturally ventilated tower designed by Norman Foster will accommodate 25 000 people - a city unto itself - and the designer is aiming for LEED gold...

• Publication date : 2008/08/12

Refrigerant news: Hydrocarbons in MAC in Oz

An Australian vehicle manufacturer of OKA four-wheel drive (4WD) vehicles has announced that it is the first manufacturer in the world to use hydrocarbon refrigerants for the air-conditioning systems of its vehicles. The manufacturer been...

• Publication date : 2011/02/07

Green buildings: Darmstadtium

Darmstadtium features pioneering energy-saving and environmental technologies. For instance, a "Calla" - a flower-like funnel-shaped glass roof - in the heart of the building collects rainwater, lets in daylight and sucks in fresh air. Cooling is...

• Publication date : 2008/07/11

Briefs: A CO2 secondary refrigerant system to test icebreakers

Travelling through the North Pole's ice-capped seas could reduce sea transport distances between Hamburg and Osaka, Japan, or Shanghai, China, for instance, by more than 4000 nautical miles, thus allowing for great time and financial savings. The...

• Publication date : 2009/02/25

The cooling industry awards 2004: celebrating excellence in environmentally friendlier cooling

The very first Cooling Industry Awards was organized by Refrigeration and Air Conditioning (RAC) magazine on September 15, 2004. It proved to be a success as nearly 400 RAC professionals from across the industry and major end-users were present....

• Publication date : 2004/11/19

Two new IIR Informatory Notes on Energy Recovery!

The IIR has just published two new Informatory Notes on energy recovery: one on Energy Recovery in Mechanical Ventilation Systems and the other one on Air-to-Air Energy Recovery Equipment. 

• Publication date : 2021/06/29

The IIR publishes two new IIR Informatory Notes on Energy Recovery!

The International Institute of Refrigeration (IIR) has just published two new Informatory Notes on energy recovery: one on Energy Recovery in Mechanical Ventilation Systems and the other one on Air-to-Air Energy...

• Publication date : 2021/07/13
• Subjects: Technology, Environment

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

STEF-TFE opens largest cold store in Madrid

New site cuts energy consumption by 15% with innovative energy storage system during off-peak hours

• Publication date : 2011/12/08

IIR Congress 2019: The refrigeration event of the year

Taking place on August 24-30, 2019 in Montreal (Canada), birthplace of the 1987 Montreal Protocol, the IIR Congress 2019 will be organised under the theme “Refrigeration for Human Health and Future Prosperity" and will focus on the current global...

• Publication date : 2019/07/30

IIR website: most downloaded publications in 2023

Discover the three most popular IIR publications of 2023. The focus is on the carbon footprint of the cold chain and cold rooms! 

• Publication date : 2024/02/27

Discover the new IIR Science and Technology Council

With 8 newly elected presidents and vice-presidents, 3 reassignments and 5 reappointments, this new Science and Technology Council (STC), mandated from 2015 to 2019, is set to bring forth fresh ideas and novel change.

• Publication date : 2016/02/10

Cooling Keeps Food Fresh : Global Campaign Announced for World Refrigeration Day, June 26

Since 2019, June 26 celebrates the World Refrigeration Day. With increasing global stakes at hand over the past years, refrigeration took a leading role at the heart of international...

• Publication date : 2022/05/25
• Subjects: Environment

Student Networking at ICR 2023: An afternoon dedicated to young people!

At ICR 2023, Wednesday, August 23 was punctuated by an afternoon dedicated to young people! 

• Publication date : 2023/09/04

IIR website: best downloads in 2022

Discover the three most popular IIR publications in 2022. The focus is on the economy, women in refrigeration, and the carbon footprint of the cold chain. 

• Publication date : 2023/01/24
• Subjects: Figures, economy, Environment

New IIR Informatory Note: The Role of Refrigeration in Worldwide Nutrition

In line with its corporate objective to promote knowledge of refrigeration and associated technologies and applications on a global scale, the IIR has published a new Informatory Note on “The Role of Refrigeration in Worldwide...

• Publication date : 2020/04/23
• Subjects: Regulation, Developing country, General information, Technology, Figures, economy, Environment

The essential role of refrigeration in the combat against COVID-19

Statement of the International Institute of Refrigeration calling governments to consider refrigeration-related services as “essential services” in the context of the current health crisis due to COVID-19.

• Publication date : 2020/04/14
• Subjects: Regulation, Developing country, General information, Technology, Figures, economy, Environment

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

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

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

Global HFC emissions from the refrigeration sector

This table shows HFC emissions from the refrigeration sector – including air conditioning – in million tonnes of CO2 equivalent for about 40 countries that are signatories...

• Last update : 2022/01/20
• Langues : English
• Themes : General information on environment (climate change, ozone depletion…)