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IIR document

Feasibility of solar-geothermal hybrid source heat pump for producing domestic hot water in hot climates.

• Author(s) : DUARTE W. M., PAULINO T. F., TAVARES S. G., MAIA A. A. T., MACHADO L.
• Publication date: 2021/04
• Languages : English
• Keywords : Heat pump, Geothermy, Solar energy, Hot water, Domestic water, Hot climate, R290, COP, Simulation, Propane, Brazil, Case study
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 124
• Formats : PDF

IIR document

Integrated CO2 refrigeration and AC unit for hot climates.

• Author(s) : KVALSVIK K. H.
• Publication date: 2017/05/11
• Languages : English
• Keywords : Refrigerating system, Commercial building, R744, India, GWP, Ejector, Air conditioning, Hot climate
• Source: 7^th Conference on Ammonia and CO₂ Refrigeration Technology. Proceedings: Ohrid, North Macedonia, May 11-13, 2017.
• Formats : PDF

Characteristics of energy consumption by building type of a U.S. navy installation in hot and humid climate.

• Author(s) : LIU X., AL BARWANI A., SHEN H.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Humid climate, Energy consumption, Electricity, Building, Measurement, Review, USA, Hot climate
• Source: 2016 Purdue Conferences. 4^th International High Performance Buildings Conference at Purdue.
• Formats : PDF

Computational analysis of cross ventilation for spaces with operable transom windows in hot and humid climate.

• Author(s) : CHANG C. Y., CHAN Y-C.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Velocity (fluids, gases), Humid climate, CFD, Building, Natural ventilation, Pressure, Natural cold, Hot climate
• Source: 2018 Purdue Conferences. 5^th International High Performance Buildings Conference at Purdue.
• Formats : PDF

Comparativa de sistemas de subenfriamiento en ciclos de refrigeración de CO2 en climas cálidos.

Comparison of subcooling systems in CO2 refrigeration cycles in hot climates.

• Author(s) : NEBOT-ANDRÉS L., CATALÁN-GIL J., LLOPIS R., et al.
• Publication date: 2018/06/19
• Languages : Spanish
• Keywords : Comparison, R744, Subcooling, Modelling, Evaporation, Energy efficiency, COP, CO2, Hot climate
• Source: CYTEF 2018. IX Congreso Ibérico y VII Congreso Iberoamericano de Ciencias y Técnicas del Frío, Valencia, España, 19-21 junio 2018.
• Formats : PDF

Annual thermal performance assessment for an economized vapor injection system in hot climate.

Évaluation de la performance thermique annuelle d'un système à injection de vapeur à économiseur dans un climat chaud.

• Author(s) : ABDAL A., BAHMAN A. M.
• Publication date: 2022/07/10
• Languages : English
• Keywords : Performance, Air conditioning, Hot climate, COP, Kuwait, Modelling, Residential sector, Injection, Correlation
• Source: 2022 Purdue Conferences. 19^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Exergoeconomic analysis of a variable area solar ejector refrigeration system under hot climatic conditions.

• Author(s) : TASHTOUSH B., SONGA I., MOROSUK T.
• Publication date: 2022/12
• Languages : English
• Keywords : Ejector system, Solar collector, Exergy, Modelling, Optimization, Hot climate, COP, Cost
• Source: Energies - vol. 15 - n. 24
• Formats : PDF

Technologies to improve the performance of A/C systems in hot climate regions.

• Author(s) : BAHMAN A., GROLL E., HORTON T., et al.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Technology, R410A, R1234yf, R32, R290, Compression system, Propane, Performance, Air conditioning, Hot climate
• Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

A novel hybrid desiccant-based ejector cooling system for energy and carbon saving in hot and humid climates.

• Author(s) : HEIDARI A., ROSTAMZADEH H., AVAMI A.
• Publication date: 2019/05
• Languages : English
• Keywords : Humid climate, Simulation, Evaporative system, Ejector, Energy saving, Desiccant, Air conditioning, Hot climate
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 101
• Formats : PDF

A novel solar-assisted membrane-based liquid desiccant air conditioning system for hot and humid climatic conditions.

• Author(s) : GURUBALAN A., MAIYA M. P., TIWARI S.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Solar collector, Humid climate, Dehumidification, Liquid desiccant, Modelling, Energy saving, COP, Air conditioning, Hot climate
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Adaptation de l’ATP aux climats chauds.

Adaptation of ATP to hot climates.

• Author(s) : PANOZZO G., BISON P., BA A., ROSSI S.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Refrigerated transport, Refrigerated vehicle, Solar radiation, Hot climate, Thermal load, Calculation, Case study, Frozen food, COP, Simulation, Europe, Africa, Ambient condition, Regulations
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

Solar-powered mechanical subcooling refrigeration system for hot climates.

• Author(s) : BARGHASH S., BAHMAN A., IBRAHIM O. M.
• Publication date: 2021/05
• Languages : English
• Keywords : Solar cooling, Air conditioning, Kuwait, Hot climate, Subcooling, Photovoltaic panel, Residential building, R410A, R600, Modelling, Thermodynamic cycle, COP, Case study
• Source: 2021 Purdue Conferences. 18^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Experimental analysis of hybrid and conventional air conditioning systems working in hot-humid climate.

• Author(s) : FATOUH M., ABOU-ZIYAN H. Z., MAHMOUD O., et al.
• Publication date: 2017/05/25
• Languages : English
• Keywords : Air conditioner, Desiccant system, Performance, Developing country, Hybrid system, Expérimentation, Compression, Hot climate
• Source: Applied Thermal Engineering - vol. 118

Evaluación energética de distintas arquitecturas booster con CO2 para refrigeración comercial en climas cálidos.

Energy evaluation of various CO2 booster architectures for commercial refrigeration in hot climates.

• Author(s) : CATALÁN-GIL J., SÁNCHEZ D., NEBOT-ANDRÉS L., et al.
• Publication date: 2018/06/19
• Languages : Spanish
• Keywords : Spain, Comparison, Commercial application, R744, Supermarket, Subcooling, Portugal, COP, CO2, Hot climate
• Source: CYTEF 2018. IX Congreso Ibérico y VII Congreso Iberoamericano de Ciencias y Técnicas del Frío, Valencia, España, 19-21 junio 2018.
• 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 - vol. 15 - n. 20
• Formats : PDF

A refrigerated bag to preserve vaccines in hot climates

An autonomous refrigerated bag is currently developed in Burkina Faso. It could preserve vaccines between 2 ans 8 °C.

• Publication date : 2017/09/15
• Subjects: Developing country

Cold storage: sustainable solutions for developing countries with hot climates

Two papers from the recent IIR Congress illustrate the importance of developing the cold chain in developing countries with warm climates. In particular, in India, environmentally-friendly technical solutions...

• Publication date : 2023/12/19

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

Pressure exchanger enhances efficiency of CO2 refrigeration systems

A new pressure exchanger technology, adapted from the desalination industry, offers significant energy efficiency improvements for CO2 refrigeration systems, addressing challenges of high energy...

• Publication date : 2024/12/02

Green roofs can reduce cooling demand in warm climate zones

The impact of green roofs on building energy performance was assessed in 15 climate zones. In most regions, the reduction in energy demand for cooling was greater than for...

• Publication date : 2023/10/24
• Subjects: Technology

Mini containers, an energy-efficient solution for small farmers?

To benefit small growers, a team of researchers investigated the concept of mini containers that would consume less energy and produce fewer GHG emissions than conventional full-size...

• Publication date : 2022/12/12
• Subjects: Technology

Higher AC setting temperatures to reduce thermal discomfort and energy demand in warm countries

Using data from four cities in India, Philippines, and Thailand, a recent study found that occupants experience thermal discomfort from unnecessarily low air conditioning (AC) temperature settings. Warmer indoor...

• Publication date : 2020/11/27

GL2018 highlights: CO2 systems now competitive in any climate

During the Gustav Lorentzen conference, which took place in Valencia in June 2018, CO2 was the refrigerant with the highest number of papers, with an emphasis on transcritical CO2 systems and technical solutions which would improve the energy...

• Publication date : 2018/08/08

Great potential for solar district cooling in Saudi Arabia

A recent modelling compares the performances of a two-stage and a single-stage absorption chiller in a solar district cooling system in Riyadh, Saudi Arabia.

• Publication date : 2018/12/27
• Subjects: Developing country

Measures for more energy-efficient air conditioning in Saudi Arabia

A recent article proposes key policies and technologies that could promote a more sustainable use of air conditioning in Saudi Arabia, a country where air conditioning accounts for 70% of household electricity...

• Publication date : 2020/12/28
• Subjects: Figures, economy, Technology

A transcritical CO2 system efficient in hot countries

A transcritical CO2 refrigeration system was presented during the retail trade fair Euroshop 2017.

• Publication date : 2017/07/27
• Subjects: Developing country

R&D

The US Department of Energy's National Renewable Energy Laboratory (NREL) has developed a new air-conditioning system combining membranes, evaporative coolers and desiccants into a single device with the objective to suit to all climates,...

• Publication date : 2011/02/07

For IIR members only

Canada invests over CA $500,000 in heat pump training to boost skilled workforce and reduce emissions

In August 2024, Parliamentary Secretary to the Minister of Environment and Climate Change and to the Minister of Energy and Natural Resources, announced over 500,000 Canadian dollars...

• Publication date : 2024/10/23
• Subjects: General information

China: World's largest indoor ski resort applies energy saving measures

Shanghai’s new indoor ski resort relies heavily on refrigeration technologies, including 33 snow-making machines to feed the pistes.

• Publication date : 2024/11/06
• Subjects: General information

Sustainable air-conditioning solutions in EU buildings

In a recent briefing note, the European Environment Agency (EEA) discusses sustainable solutions to the growing need for cooling in Europe.

• Publication date : 2022/12/15
• Subjects: General information

1st IIR-UNEP Joint Experts’ Round-Table on Cold Chain Management in Hot Climates

In collaboration with the United Nations Environment Programme (UNEP), the IIR is proud to announce the 1st IIR-UNEP Joint Experts’ Round-Table on Cold Chain Management in Hot Climates.

• Publication date : 2016/01/20

Event update: 1st IIR-UNEP Joint Experts’ Round-Table on Cold Chain Management in Hot Climates

The IIR and UNEP organise a Joint Experts’ Round-Table on Cold Chain Management in Hot Climates.

• Publication date : 2016/06/08

HARFKO 2015: More successful than ever welcomes UNEP Ozone2Climate Roundtable & Roadshow

Last week the IIR was delighted to participate in the 13th Heating, Air-conditioning, Refrigeration & Fluid Exhibition – KOREA (HARFKO 2015).

• Publication date : 2015/03/18

Conference update: Sydney

The 9th IIR Gustav Lorentzen Conference Natural Working Fluids will be held in Sydney, Australia, on April 12-14, 2010. The call for papers and first announcement are now available:

• Publication date : 2009/05/18

Conference update: Sydney

The 9th IIR Gustav Lorentzen Conference on Natural Working Fluids will be held in Sydney, Australia on, April 12-14, 2010. The conference will place a heavy emphasis on natural refrigerant CO2 as a real alternative solution....

• Publication date : 2009/12/09

World Bank project in Bangladesh

The IIR has just signed an agreement with the World Bank to develop a cold chain, as sustainable as possible of course, in Bangladesh, in partnership with British and Bangladeshi universities. 

• Publication date : 2021/03/29
• Subjects: Developing country

SophiA project: HKA Lab test progress

SophiA HKA (Karlsruhe University of Applied Sciences) Lab test is intended to provide a better understanding of the cooling system in in different climate zones.

• Publication date : 2023/10/27

The “Projects on clean and efficient refrigeration solutions for food and healthcare sectors in developing countries” workshop at ICCC 2022

An IIR workshop which has gathered the current projects in developing countries that will help to raise awareness among the industry, farmers, policymakers, and consumers… on the importance of adopting a...

• Publication date : 2022/04/29

How to adapt in a world at 50°C? Learn more at the IMechE conference this September

On September 6-8, 2023, the Institution of Mechanical Engineers (IMechE) will host its 1st International Conference and Workshop on Climate Adaptation and Resilience in London.

• Publication date : 2023/09/05
• Subjects: Technology, Environment

IJR Editorial: Solar energy, the energy of the future for refrigeration

Solar refrigeration should become a means of providing cleaner air conditioning and developing cold chains for food and health products where they are still deficient. We need to accompany this development while...

• Publication date : 2021/01/21

Newsletter INDEE+ | September 2023

The latest news on the INDEE+ project.

• Publication date : 2023/09/22

Invitation: IIR Seminar on the "Logistics For Transport Of Foodstuffs Under Controlled Temperatures In Hot Countries"

The IIR is delighted to invite you to the IIR Seminar on the "Logistics For Transport Of Foodstuffs Under Controlled Temperatures In Hot Countries” and an IIR Working Group meeting on The Cold Chain in Hot Countries.

• Publication date : 2016/09/21

IIR Seminar in Tunis brings to the forefront the social and economic strategic importance of the cold chain

Recognising the social and economic importance of this issue on a global scale, the IIR organised a seminar on the Logistics For Transport Of Foodstuffs Under Controlled Temperatures In Hot Countries on October 25, 2016 in Tunis (Tunisia),...

• Publication date : 2016/12/14

New IIR Informatory Note on evaporative cooling

The latest IIR Informatory Note highlights that evaporative cooling is an energy-efficient technology that has many applications in air conditioning but also in short-term food storage. 

• Publication date : 2023/05/27

INDEE+: Focus on the two-day workshop “Hotel Decarbonisation using R744 Heat Pump/chiller” organised in April

A two-day workshop titled “Hotel Decarbonisation using R744 Heat Pump/chiller” was organised on 26-27 April 2024 at Antarim Resorts, Goa. The technical session was followed by a demonstration of the R744 HP/C...

• Publication date : 2024/05/28

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…)

Hydrocarbon refrigerants

Hydrocarbons such as R290 (propane), R600a (isobutane) or R1270 (propene/propylene) are low GWP non-toxic natural refrigerants with excellent thermodynamic properties. They offer an...

• Last update : 2022/06/22
• Langues : English, French
• Themes : Hydrocarbons, Containment, refrigerant charge reduction