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Humid air behavior through a bubbler basin using for water desalination.

• Author(s) : HANEN B. H., NADER F., SLIMANE G.
• Publication date: 2016/03/24
• Languages : English
• Keywords : Humid air, Simulation, Performance, Solar energy, Desalination, Dehumidifier, Water
• Source: 1st International Refrigeration, Energy and Environment Colloquium. Proceedings: Hammamet, Tunisia, March 24-27, 2016.
• Formats : PDF

Psychrometric properties of humid air from multi-Fluid Helmholtz-energy-explicit models.

• Author(s) : BELL I., LEMMON E., HARVEY A.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Psychrometry, Humid air, Thermodynamic property, Model, Mixture, Natural gas
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Thermodynamic modelling of humid-air expansion within an R717/R729 cascade refrigeration system for cold store applications.

• Author(s) : GIANNETTI N., MILAZZO A., ROCCHETTI A., et al.
• Publication date: 2017/04/23
• Languages : English
• Keywords : Refrigerating system, Humid air, Brayton, R717, Air, Cascade system, Modelling, Cold store
• Source: 5^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
• Formats : PDF

IIR document

High potency of application on an open direct-contact thermal storage using humid air.

• Author(s) : HIRONAKA S., OOGA S., HANAKI M., WIJAYANTA A. T., FUKAI J.
• Publication date: 2024/12
• Languages : English
• Keywords : Waste heat, Thermal energy storage, High temperature, Humid air, Zeolite, Adsorbent, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 168
• Formats : PDF

Recommended by the IIR

Review of humidity effects on humid air-water condensation by a cooling surface for atmospheric water harvesting.

• Author(s) : KIM G. S., CAO T., HWANG Y.
• Publication date: 2021/05
• Languages : English
• Source: 2021 Purdue Conferences. 18^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Moist air permeability characteristics of flexible contact gaskets used in refrigerators.

• Author(s) : LIU G., WANG B., HE G., ZHAO T., YAN G.
• Publication date: 2024/11
• Languages : English
• Keywords : Household refrigerator, Seal, Performance, Tightness, Humid air, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 167
• Formats : PDF

IIR document

Algorithms for the calculation of psychrometric properties from multi-fluid Helmholtz-energy-explicit models.

• Author(s) : BELL I. H., LEMMON E. W., HARVEY A. H.
• Publication date: 2018/03
• Languages : English
• Keywords : Humid air, Thermodynamic property, Modelling, Mixture, Equation of state, Water
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 87
• Formats : PDF

Analyse psychrométrique des systèmes de climatisation.

Psychometric analysis of air conditioning systems.

• Author(s) : GHIAUS C.
• Publication date: 2016/01
• Languages : French
• Keywords : Humid air, Air treatment, Modelling, Sensible heat, Latent heat
• Source: Revue générale du Froid & du Conditionnement d'air - n. 1155

IIR document

Heat generation in a packed bed of zeolite particles using moist air.

• Author(s) : WIJAYANTA A. T., HIRONAKA S., HANAKI M., FUKAI J.
• Publication date: 2023/08
• Languages : English
• Keywords : Sorption bed, Heat, Vapour, Zeolite, Humid air, Calculation, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 152
• Formats : PDF

IIR document

Augmented desalination with cooling integration

• Author(s) : CHIRANJEEVI C., SRINIVAS T.
• Publication date: 2017/08
• Languages : English
• Keywords : Humidification, Humid air, Dehumidification, Comparison, Cooling, Performance, Desalination, Chilled water
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 80
• Formats : PDF

IIR document

Modeling spatial and temporal frost formation with distributed properties on a flat plate using the orthogonal collocation method.

• Author(s) : BENÍTEZ T., SHERIF S. A.
• Publication date: 2017/04
• Languages : English
• Keywords : Humid air, Frosting, Heat transfer, Flat plate, Modelling, Heat exchanger
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 76
• 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

Výber stavu venkovního vzduchu pro dimenzování výmeníku tepla ve vzduchotechnice.

Selection of the outdoor air parameters for designing of heat exchangers in air-conditioning.

• Author(s) : ZMRHAL V.
• Publication date: 2016/02
• Languages : Czech
• Keywords : Humid air, Ventilation, Design, Temperature, Parameter, Enthalpy, Air conditioning, Heat exchanger
• Source: Vytápení Vetrání Instalace - vol. 25 - n. 1
• Formats : PDF

Relative humidity in the indoor air – impact on indoor air quality and means of control.

• Author(s) : SCHRECK T.
• Publication date: 2021/12
• Languages : English
• Keywords : Relative humidity, Air quality, Indoor environment, Thermal comfort, Recovery
• Source: REHVA Journal - vol. 58 - n. 6
• Formats : PDF

The numerical model for direct evaporative cooler.

• Author(s) : KOVACEVIC I., SOURBRON M.
• Publication date: 2017/02/25
• Languages : English
• Keywords : Humid air, Mass transfer, Heat transfer, Evaporative system, Modelling, Heat exchanger
• Source: Applied Thermal Engineering - vol. 113

Humidity greatly impacts emissions from air conditioning

The environmental impact of controlling humidity in air conditioning may be larger than the impact of reducing temperatures, according to research from the National Renewable Energy...

• Publication date : 2022/07/04
• Subjects: Figures, economy, Environment

Novel desiccant materials for more energy-efficient AC systems

Teams of researchers at MIT and at Texas A&M University have developed novel desiccant materials that could lead to more energy-efficient and economical room air conditioners and...

• Publication date : 2021/04/28
• Subjects: Technology

Evaporative cooling without adding humidity

Scientists at the University of Harvard have designed a prototype evaporative cooling system called Cold-SNAP that effectively cools air at low cost for both dry and humid climates.

• Publication date : 2020/05/26
• Subjects: Technology, Developing country

Efficient cooling methods to reduce heat stress in pigs

Microclimate parameters such as air temperature and humidity are important indicators of animal welfare. Besides, heat stress is more detrimental to productivity in the swine...

• Publication date : 2020/10/22
• Subjects: Technology

Award for the first air-conditioned building in the UK

Opened in 1903, the Royal Victoria Hospital’s air conditioning system is seen as a milestone in the history of environmental engineering, cleaning the air and controlling both temperature and humidity in the hospital for the comfort of staff and...

• Publication date : 2018/12/27

100th anniversary of psychrometrics

The formula which underpins the relationship between temperature, humidity and dew point - the basis of all air conditioning calculations - marks its 100th anniversary.

• Publication date : 2011/12/28

New framework aims to standardise research on evaporative cooling technologies

Evaporative cooling is gaining increasing attention as an energy-efficient alternative to conventional air conditioning. A new scientific study by an international team of researchers, including Anna Pacak,...

• Publication date : 2026/03/19
• Subjects: Technology

Refrigeration continued to drive sales of large household appliances in France in 2021

According to Gifam, a grouping of home appliance brands, sales of refrigerators, freezers and wine coolers increased in France in 2021.  

• Publication date : 2022/03/14
• Subjects: Figures, economy

Techniques of humidification in data centres

An interesting overview of the recent improvement in data centres humidification techniques.

• Publication date : 2017/05/02
• Subjects: Regulation

US research projects to cut AC energy consumption

The 15 projects selected by Advanced Research Projects Agency-Energy (ARPA-E) – within the Building Energy Efficiency Through Innovative Thermodevices (BEETIT) are developing new approaches and technologies for building cooling equipment and air...

• Publication date : 2012/09/19

Thermal comfort in commercial buildings

An article published by Consulting Specifying Engineer focuses on the factors to consider when providing thermal comfort in commercial buildings.

• Publication date : 2017/07/05

The impact of humidity on global demand for cooling energy

Recent studies have highlighted the countries most affected by the need to adapt to rising temperatures. Assessing the impact of humidity on perceived temperatures also stresses out...

• Publication date : 2023/09/25
• Subjects: General information

The Pentagon activates solar air conditioning

The solar heating, air-conditioning, power and lighting system installed at the guard station of the Pentagon is one of the most advanced in the US. The system incorporates 12 advanced ways of using solar energy to reduce fossil and electrical...

• Publication date : 2006/01/28

Briefs: Dehumidification and cooling system cuts energy consumption by 43% in meat processing plant

Cooling and dehumidification costs in a meat plant in Germany have been reduced by a system using hot and cold water from other processes. According to DuCool, TönniesFleisch plant in Rheda-Wiedenbrück is saving annually 165 000 € in electricity...

• Publication date : 2009/08/13

Better air in planes - at last!

A series of technical changes is making it possible to improve the quality of cabin air in airplanes which until now has been invariably dry and poor in oxygen. The reason: the air was derived from the jet engines. This so-called "bleed air" is...

• Publication date : 2007/02/12

First meeting of the IIR Working Group on Dehumidification in Air Conditioning

The IIR Commission E1 Working Group (WG) on “Dehumidification in Air Conditioning”, chaired by Baolong Wang and Xu Zhang, held its first meeting during the IIR-co-sponsored Purdue conferences on July 9, 2018.

• Publication date : 2018/09/20

IIR releases new technical brief on dehumidification technologies for air conditioning

Paris, France — July 2026 — The International Institute of Refrigeration (IIR) has published Dehumidification in Air Conditioning, the 62nd in its Technical Brief series on refrigeration technologies. The...

• Publication date : 2026/07/14
• Subjects: Technology, Environment, General information, Regulation, Developing country

IIR to Launch the Global Refrigeration Outlook at ICR 2027 in Seoul

The International Institute of Refrigeration announces its first-ever comprehensive global report on refrigeration, a landmark science-based publication designed to guide industry, policy, and society toward a sustainable cooling...

• Publication date : 2026/06/22
• Subjects: Technology, Environment, Figures, economy, General information, Regulation

New IIR Working Groups focus on core matters in refrigeration

IIR Working Groups (WGs) operate on a temporary basis and bring together specialists to work on projects concerning current technological, social or economic issues linked to refrigeration. Their aim is to promote development, provide knowledge...

• Publication date : 2018/10/02

Obituary: Per-Oskar Persson

The former Managing Director of Frigoscandia AB, Per-Oskar Persson of Helsingborg, Sweden passed away on August 26, 2008, at the age of 84. He was an Honorary Member of IIR, President of Commission D1, 1971 - 1979, and Head of Section D 1979 -...

• Publication date : 2008/09/29

IIR Informatory Note highlights global air conditioning's CO2 emissions and energy impact

The IIR has modelled current and future CO2 emissions attributable to air conditioning in different regions of the world.

• Publication date : 2024/08/01
• Subjects: Environment, Figures, economy

New IIR Informatory Note on passive cooling

The IIR’s latest Informatory Note demonstrates that passive cooling technologies can contribute significantly to reducing energy demand for air conditioning. 

• Publication date : 2022/04/29
• Subjects: Technology

Next Generation Cooling: World Refrigeration Day Announces 2023 Theme

Titled "Next Generation Cooling", the WRD 2023 campaign will focus on the future of cooling technology, the industry, the people working within it, and those that benefit from cooling.

• Publication date : 2023/05/27
• Subjects: Environment

Heat pumps, the central theme of the recent IIR Congress

An overview of the research carried out in the field of heat pumps, with the aim of achieving greater flexibility and increased energy efficiency, in particular through to the use of thermal energy...

• Publication date : 2023/10/24

IIR launched a new technical brief on dehumidification at the OEWG48 side event in Bangkok

Bangkok, 14 July 2026 — The International Institute of Refrigeration (IIR) officially launched its latest technical publication, Dehumidification in Air Conditioning, at a side event held during the 48th Meeting...

• Publication date : 2026/07/14
• Subjects: Technology, Environment, General information, Regulation, Developing country

Member News: Daikin partners with Fujifilm to reduce noise from some of its ventilation/humidification units

The Japanese company Daikin will soon use a new technology to reduce noise in some of its ventilation and humidification units. 

• Publication date : 2022/02/28

Member news: latest innovations from Mirai Intex

The company Mirai Intex has just marketed a refrigeration machine using air cycle for low temperatures. Mirai Intex also markets a mobile storage solution. 

• Publication date : 2022/03/29

Refrigeration Safety Working Group Congress meeting

Refrigeration Safety Working Group Congress meeting ICR 2019 offers opportunities for industry experts to meet and discuss improvements in refrigeration safety. With the upcoming...

• Publication date : 2019/08/07

World Refrigeration Day 2021 reaches every corner of the globe!

This year, seven organisations partnered with World Refrigeration Day to bring to the limelight the exciting career opportunities in fields relying on refrigeration.

• Publication date : 2021/09/08

OEWG-47 Side Event Highlights Urgent Need for Sustainable Cooling in Data Centres

The Climate and Clean Air Coalition (CCAC) and the International Institute of Refrigeration (IIR), with support from UNEP United for Efficiency (U4E), brought together experts, policymakers, and industry leaders...

• Publication date : 2025/07/08
• Subjects: General information

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