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Recommended by the IIR / IIR document

Comparative performance analysis of a solar assisted heat pump for greenhouse heating in Tunisia.

• Author(s) : AGREBI S., CHARGUI R., TASHTOUSH B., GUIZANI A.
• Publication date: 2021/11
• Languages : English
• Keywords : Heat pump, Heating, Performance, Climate, Tunisia, COP, Agricultural application, Greenhouse, Flat plate, Solar collector, Glass, Expérimentation, Modelling, Solar energy, Case study
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 131
• Formats : PDF

IIR document

Research progress of air source heat pump heating system suitable for cold area applications.

• Author(s) : MA A., MA G., WANG L., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Low temperature, Air-source system, Two-stage system, Review, Heat pump, Multistage system, Energy saving, Heating, Cold climate
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

Energatski aspekti sušenja drveta.

Energy aspects of wood drying.

• Author(s) : MAROVIC V., ÐAKOVIC D.
• Publication date: 2016/12
• Languages : English
• Keywords : Wood, Energy consumption, Drying, Heat pump, Performance, Humidity
• Source: 47^th International HVAC&R Congress and Exhibition.
• Formats : PDF

IIR document

A novel air-source heat pump system with integrated desiccant for electric vehicles.

• Author(s) : ZHANG L., HASHIMOTO K., HASEGAWA H., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Dehumidification, Electric vehicle, Simulation, Heat pump, Energy saving, Desiccant, Defrosting, Heating
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Performance analysis of a heat pump system with integrated desiccant for electric vehicles.

• Author(s) : LI Z., HASHIMOTO K., HASEGAWA H., et al.
• Publication date: 2018/02
• Languages : English
• Keywords : Electricity, Consumption, Electric vehicle, Heat pump, Performance, Modelling, Desiccant, Heating
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 86
• Formats : PDF

Heat pump clothes dryer model development.

• Author(s) : SHEN B., GLUESENKAMP K., BANSAL P., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Clothing, Drying, Heat pump, Modelling, Energy saving, Heat exchanger
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Theoretical evaluation of cooling and heat-pump operation of an environmental test chamber using CO2 as refrigerant.

• Author(s) : WAGNER A., LANGEBACH R., HESSE U.
• Publication date: 2018/06/18
• Languages : English
• Keywords : Climatic chamber, Cooling, R744, Simulation, Heat pump, Energy saving, CO2
• Source: 13^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
• Formats : PDF

IIR document

Modeling evaluation of a direct-expansion solar-assisted heat pump water heater using R410A.

• Author(s) : KONG X. Q., LI Y., LIN L., et al.
• Publication date: 2017/04
• Languages : English
• Keywords : Water heater, R410A, Direct expansion, Simulation, Heat pump, Solar energy, COP, Refrigerant charge
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 76
• Formats : PDF

IIR document

Performance evaluation and validation of a novel heat pump water heater with rotary compressor and D-shaped condenser coils.

• Author(s) : SHI C., HRNJAK P.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Water heater, CFD, Tank, Prediction, Heat pump, Performance, Modelling, Condenser, Rotary compressor
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

A heat pump for space applications with a lightweight 200,000 RPM centrifugal three-stage compressor system.

• Author(s) : GERNER H. J. van, DONK G. van, PAUW A., et al.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Operation, Design, Heat pump, Performance, Multistage system, Space, Compressor
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

System analysis and optimization of a CO2 heat pump tumble dryer.

• Author(s) : ALPOEGGER T., TEGETHOFF W., BOCKHOLT M., et al.
• Publication date: 2016/08/21
• Languages : English
• Keywords : Energy consumption, Clothing, R744, Drying, Heat pump, Optimization, Modelling
• Source: 12^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2016). Proceedings. Édimbourg, United Kingdom, August 21st-24th 2016.
• Formats : PDF

High-temperature heat pump for wellness applications using CO2 as a refrigerant.

• Author(s) : SEITZ C. W., LIEBOLD A., SCHÖNFELD H., et al.
• Publication date: 2018/07/09
• Languages : English
• Keywords : R744, Simulation, Heat pump, Humidity, High temperature, Energy efficiency, CO2
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Operation of large-scale heat pumps under fluctuating boundary conditions.

• Author(s) : MEESENBURG W., KRAMER K. R., CHRISTENSEN M. K., REINHOLDT P., POULSEN J. L., ELMEGAARD B.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Heat pump, Modelling, Simulation, Heat exchanger, Ammonia, District heating
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Thermodynamic performance of triple loop heat pump ventilation recovery system.

• Author(s) : MA A., MA G., WANG L., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Temperature difference, Comparison, Loop, Ventilation, Recovery, Air-source system, Heat pump, Testing, COP
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

Experimental study and performance analysis of an electric vehicle heat pump system for heating mode.

• Author(s) : TIAN Z., GU B., SUN X., et al.
• Publication date: 2014/03/02
• Languages : English
• Keywords : Thermal analysis, Thermodynamic property, Heat pump, Performance, Expérimentation, Heating
• Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
• Formats : PDF

Geothermal heat pumps on the rise

Geothermal (ground-source) heat pumps (GHPs) are one of the fastest growing applications of renewable energy in the world with worldwide annual growth rate which exceeded 10% over the past 10 years.

• Publication date : 2012/07/06
• Subjects: Figures, economy

PCM thermal energy storage for indoor environments

During the IIR PCM 2018 conference which took place on May 21-23 in Orford, Canada, numerous applications of phase-change materials (PCMs) and slurries were presented, including in commercial refrigeration (refrigerated display cabinets), domestic...

• Publication date : 2018/06/22

Efficiency of ground source heat pump systems

Ground source heat pumps (GHSP) have been reported to be more efficient than more widespread air source heat pumps despite higher installation costs. A recent article has reviewed parameters impacting the energy...

• Publication date : 2021/03/29
• Subjects: Technology

GeoExchange coalition: promoting earth-energy heat pumps

A coalition for the promotion of earth-energy heat pumps, called the GeoExchange Coalition has been formed in Canada. Five electric utilities formed this coalition in an effort to significantly increase the number of annual installations for...

• Publication date : 2004/09/14

Alternative Cooling Technologies conference, London, 1st February 2005

This conference, which was co-sponsored by the UK Institute of Refrigeration and organised commercially by RAC magazine, was well attended with about 140 people present. It was arranged in five sessions. In the first session, speakers from UK...

• Publication date : 2005/02/11

ICR2019: overview of current refrigeration research topics (part IV)

Energy storage, desiccant air conditioning, high-temperature heat pumps and ejector technologies were some of the salient topics of the latest IIR Congress. Continuation of the synthesis of key presentations of ICR2019.

• Publication date : 2019/10/30

Market: European heat pump market

- The European Heat Pump Association (EHPA) has published an updated version of its outlook for the European heat pump market. The report shows that after 2 years of very difficult economic times, the market decline has stopped and heat pump...

• Publication date : 2011/02/07

ICR 2019: an overview of current refrigeration research (part I)

Presentation of the main scientific and technical topics covered in the papers of the 25th IIR International Congress of Refrigeration and summary of some of the 14 keynotes.

• Publication date : 2019/09/30
• Subjects: HFCs alternatives

The heart inspires a new cooling system

In August 2004, at the Micro Nano Breakthrough Conference in Portland, engineers from Oregon State University in the US, presented a new successful desorption system using branching microchannels. The system was inspired by the human blood pumping...

• Publication date : 2004/09/14

Heat pumps : the core technology for sustainable heating

A recent report by the IEA highlights that heat pumps are essential to reducing the use of natural gas for heating, while improving energy security, reducing emissions and ensuring...

• Publication date : 2023/01/26
• Subjects: Environment

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

The high potential of ground-source heat pumps to decarbonise the European building sector

A potential reduction of 20-40% and 30-50% of energy demand in buildings, for heating and cooling respectively, could be achieved through increased use of geothermal heat pumps. 

• Publication date : 2022/05/27

World AC and compressor trends

In its recent report, JARN estimates that the HVAC&R market in 2006 was about 66 billion USD and about half of sales were air conditioners and related products. - Regarding the AC market, China, the US, Japan and major European countries make...

• Publication date : 2007/05/04

AC Market in Europe

According to Daikin Industries Ltd., the European air-conditioning (AC) market has features that could appear as commercial obstacles, including relatively mild climate, even in Mediterranean areas. Concern for cityscape issues leads to resistance...

• Publication date : 2006/07/26

IIR Rankine Conference 2020: Which alternative working fluids for ORC systems?

HFOs (hydrofluoroolefins), HCFOs (hydrochlorofluoroolefins) and hydrocarbons were the main alternatives to HFC245fa presented during the IIR Rankine Conference 2020.

• Publication date : 2020/09/04
• Subjects: HFCs alternatives

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

Conference update: Ohrid

The 3rd IIR event in a series, Ammonia Refrigeration Technology was held on May 7-9, 2009, in Ohrid, Macedonia. With 95 participants from 24 countries and 32 papers presented, the event was very successful. A key focus of this series of...

• Publication date : 2009/05/27

Add the latest refrigeration publications to your bookshelf!

Check out the latest IIR publications including CO2 as a Refrigerant, Handbook on Indirect Refrigeration and Heat Pump Systems and the 1st IIR International Conference of Cryogenics and Refrigeration Technology (ICCRT 2016).

• Publication date : 2016/09/06

Spotlight on Commission B2: at the forefront of refrigerating equipment

Coordinated by the IIR Science and Technology Council, Commission B2 focuses on promoting knowledge of refrigerating equipment technologies and their applications worldwide.

• Publication date : 2015/05/15

Commission E2: at the forefront of heat pumps and energy recovery

Activities of the IIR’s Commission E2 “Heat Pumps, Energy Recovery”

• Publication date : 2015/07/01

IIR member news: A new BSRIA study on the global compressor market 

A recent study by BSRIA shows that sales of refrigeration compressors in 2022 are expected to reach 502 million units with a value of USD 48.6 billion, up 15% year-on-year. 

• Publication date : 2022/12/13
• Subjects: Figures, economy

Invitation to join the IIR working group: Solid-state cooling and heating

Established last year, this latest IIR working group aims to promote international research collaboration to provide energy efficient and environmentally friendly solutions for a variety of solid-state...

• Publication date : 2023/05/02
• Subjects: Technology

Activities of the IIR’s Commission B2 on Refrigerating Equipment

The IIR’s Commission B2, which includes 70 experts from 25 IIR member countries on all continents, is extremely active and participates in many IIR activities aimed at promoting knowledge of refrigeration technologies and their applications...

• Publication date : 2014/11/20

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

Activities of the IIR’s Commission E2 “Heat Pumps, Energy Recovery”

Presentation of IIR Commission E2 activities by Per Lundqvist, President of Commission E2

• Publication date : 2015/05/22

Call for abstracts now open! 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants

Prospective authors of papers are encouraged to submit 150-200 word abstracts by September 15, 2021.

• Publication date : 2021/07/08
• Subjects: Environment, Technology

New IIR Working Group on Solid-State Cooling and Heating

Initiated by Andrej Kitanovski (Slovenia), this working group's first objective is to promote international research collaboration in the areas of solid-state cooling, heat pumps, and energy...

• Publication date : 2022/07/08

Past events: The IIR around the world

Focus on ammonia, cryogenics and heat pumps! Take a look back at the most recent events in which the IIR has participated. 

• Publication date : 2023/05/27

The Congress in Yokohama: a great success!

In Yokohama, the International Congress of Refrigeration (ICR2015), a huge milestone in the refrigeration sector, saw a massive amount of information disseminated and certainly lived up to expectations with almost 1,200 conference delegates, 143...

• Publication date : 2015/09/16

IJR Editorial: The IIR on the board of the international network of women in cooling

Women are significantly and visibly under-represented in the refrigeration industry. A preliminary evaluation has demonstrated that around 6% of women are members of national refrigeration and air-conditioning...

• Publication date : 2023/01/09

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 : French, English
• Themes : Hydrocarbons, Containment, refrigerant charge reduction

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)

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

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