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IIR document

Flow characteristics of air-water two phase flow in a plate heat exchanger.

• Author(s) : MAHMUD M. S., KAWAZOE A., MUSTAGHFIRIN M. A., et al.
• Publication date: 2015/08/16
• Languages : English
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

Estudio de una bomba de calor aire/agua funcionando con un intercambiador compacto o un intercambiador de tubo aleteado.

Investigation of a air/water heat pump using compact exchanger or finned tube exchanger.

• Author(s) : GARCÍA-CASCALES J. R., ILLÁN GÓMEZ F., HIDALGO-MOMPEÁN F., et al.
• Publication date: 2016/05/03
• Languages : Spanish
• Source: CYTEF 2016. VIII Congreso Ibérico y VI Congreso Iberoamericano de las Ciencias y Técnicas del Frío, Coimbra-Portugal, 3-6 mayo, 2016.
• Formats : PDF

Transient response of a two-phase ammonia-water heat exchanger using moving-boundary method.

• Author(s) : GOYAL A., GARIMELLA S.
• Publication date: 2017/08/07
• Languages : English
• Source: International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.

IIR document

A new ground-coupled heat pump system integrated with multi-mode air-water heat exchanger to eliminate thermal imbalance.

• Author(s) : YOU T., SHI W., WU W., et al.
• Publication date: 2015/08/16
• Languages : English
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Performance analysis of a R407C liquid-to-water heat pump: Effect of a liquid–vapor heat exchanger and domestic hot water production.

• Author(s) : ORTEGA I., SIERES J., CERDEIRA F., et al.
• Publication date: 2019/05
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 101
• Formats : PDF

IIR document

Optimal discharge pressure in transcritical CO₂ heat pump water heater with internal heat exchanger based on pinch point analysis.

• Author(s) : YE Z., WANG Y., SONG Y., YIN X., CAO F.
• Publication date: 2020/10
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 118
• Formats : PDF

IIR document

100℃ Hot Water Supplied by CO₂ Transcritical Heat Pump with Optimized Tube-in-tube Heat Exchanger

• Author(s) : HUANG R., HU B., GE T. S., EIKEVIK T. M.
• Publication date: 2022/06/13
• Languages : English
• Source: 15^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15^th 2022.
• Formats : PDF

Heat Transfer Characteristics of Cold Water Phase-Change Heat Exchangers under Active Icing Conditions.

• Author(s) : LIU C., WU R., YU H., ZHAN H., XU L.
• Publication date: 2022/10
• Languages : English
• Source: Energies - vol. 15 - n. 19
• Formats : PDF

IIR document

Design and analysis of R290 high capacity air to water heat pump with finned tube heat exchanger of small diameter.

• Author(s) : NAVARRO-PERIS E., GONZÁLVEZ-MACIÁ J., CORBERÁN J. M., et al.
• Publication date: 2014/08/02
• Languages : English
• Source: 11^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
• Formats : PDF

Integration of Taguchi's method and multiple-input, multiple-output ANFIS inverse model for the optimal design of a water-cooled condenser.

• Author(s) : HUANG C. N., YU C. C.
• Publication date: 2016/04/05
• Languages : English
• Source: Applied Thermal Engineering - vol. 98

Analysis of the shell-in-tube condenser characteristics for energy conservation.

[In Ukrainian. / En ukrainien.]

• Author(s) : NIKULSHIN R. K., MOROSUK L. I., SOKOLOVSKAYA V. V.
• Publication date: 2014
• Languages : Ukrainian
• Source: Holodil'na Tehnika i Tehnologiâ - vol.50 - n.1

Experimental Performance Analysis of Adsorption Modules with Sintered Aluminium Fiber Heat Exchangers and SAPO-34-Water Working Pair for Gas-Driven Heat Pumps: Influence of Evaporator Size, Temperatures, and Half Cycle Times.

• Author(s) : VELTE A., JOOS L., FÜLDNER G.
• Publication date: 2022/04
• Languages : English
• Source: Energies - vol. 15 - n. 8
• Formats : PDF

Saving energy with cooling towers.

• Author(s) : MORRISON F.
• Publication date: 2014/02
• Languages : English
• Source: ASHRAE Journal - vol. 56 - n. 2

Drying performance analysis of a condensing tumbler clothes dryer with a unique water cooled heat exchanger.

• Author(s) : JIAN Q., ZHAO J.
• Publication date: 2017/02/25
• Languages : English
• Source: Applied Thermal Engineering - vol. 113

Development of AHP, the Integrated Climate System Module for EV.

• Author(s) : KEON D. B., RYU J. C., SHIN K. H., LEE S. J., HWANG D. W.
• Publication date: 2021/08/31
• Languages : English
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Energy saving initiatives for cooling in data centres

In January 2021, Europe’s leading cloud and data centre operators signed the Climate Neutral Data Centre Pact, a self-regulatory initiative to become climate neutral by 2030. According to recent studies, free...

• Publication date : 2021/02/25
• Subjects: Environment, Technology

Reducing the economic costs of a direct-use geothermal heating system

Italian researchers have modelled a polymer heat exchanger to reduce the cost of a direct-use geothermal heating system for a single building in the active volcano district of the...

• Publication date : 2022/02/21
• Subjects: Technology

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

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

Latest research on ammonia-based absorption refrigeration systems

A recent article has reviewed literature on absorption chillers that use ammonia as a refrigerant, along with water (H2O), lithium nitrate (LiNO3), and lithium nitrate + water...

• Publication date : 2021/02/25
• Subjects: Technology

How to reuse the condensate water from air conditioners?

Review of the different uses of the condensate water rejected by air conditioners.

• Publication date : 2020/09/04
• Subjects: Developing country

Evaporative cooling: continuation of the Cold-Snap project at Harvard University

Tests show that Cold-Snap evaporative cooling technology would be effective in humid climates, while limiting water consumption.

• Publication date : 2022/09/28

Design and operation of district heating and cooling systems supplied by renewable energy sources

A report published by the European Commission analyses 8 efficient district heating and cooling systems in different Member States.  

• Publication date : 2021/03/29

A refrigeration system to produce freshwater in arid areas

A team of researchers from Shanghai Jiao Tong University in China demonstrated how integrating adsorption cooling and a heat pump system can improve the productivity of an...

• Publication date : 2024/05/29
• 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: Developing country, Technology

Current status and future trends of natural refrigerants in North and South America

Two papers presented at the IIR Gustav Lorentzen Conference perfectly illustrate the interest in natural refrigerants and the obstacles they face in the Americas. 

• Publication date : 2022/09/28
• Subjects: Technology

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

The benefits of 3D printing in refrigeration and air conditioning

The various applications of 3D printing in the field of refrigeration and air conditioning highlight possible tremendous advantages in terms of energy efficiency and cost minimisation.

• Publication date : 2020/05/27
• Subjects: Technology

The potential for seabed geothermal energy in the UK

An international study has shown the potential for using capillary heat exchangers for heat pumps in the shallows of the seabed, with the potential to provide heating for homes.

• Publication date : 2022/03/30
• Subjects: Environment, 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

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

Technical visit to the Tokyo fish market

At the ICCC conference last June, attendees had the opportunity to participate in technical visits, including a tour of the Tokyo fish market. Alain Le Bail, President of IIR Commission C2, joined the visit and...

• Publication date : 2024/11/15

New in our Encyclopedia: additive manufacturing for refrigeration equipment

Additive manufacturing makes it possible to optimise the geometry and performance of cooling components such as heat exchangers and regenerators for caloric...

• Publication date : 2022/09/28
• Subjects: Technology

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

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

Member news: Daikin introduces EWYS-4Z: High-Efficiency Cooling and Heating Solution for Industrial and Commercial Needs

The polyvalent EWYS-4Z cooling and heating unit, which runs on R513A, is designed for superior energy efficiency and reduced noise for industrial and commercial applications. 

• Publication date : 2024/08/01

Call for industrial partners for joint industry cryogenics project linked to LNG production

Become a project partner: Join the Joint Industry Project of MINES ParisTech – ARMINES “Evaluation of the crystallization risk in LNG production”.

• Publication date : 2017/03/16

Now available : 2023 IIR Congress proceedings

Download your copy of the ICR 2023 proceedings. IIR members can download them at reduced rate.

• Publication date : 2023/10/24

Now available: IIR Congress papers 2019

Download your copy of the ICR 2019 proceedings. Over 630 technical papers are available!

• Publication date : 2020/05/05

Obituary: S. Forbes Pearson

Dr S  Forbes Pearson, one of the most famous IIR person, passed away. The IIR presents its deepest sympathy and sincerest condolences to his family and relatives.

• Publication date : 2024/03/28

Discover the winners of the IIR Scientific Awards

Every four years during the International Congress of Refrigeration (ICR), the IIR offers a series of prestigious scientific awards.

• Publication date : 2015/03/11

Member news: Mirai Intex releases new high capacity ultra-low temperature refrigeration system

Mirai Intex, corporate member of the IIR, has released a new ultra-low temperature (ULT) system based on air-cycle technology, offering high cooling capacity.

• Publication date : 2021/03/09
• Subjects: HFCs alternatives, Technology

Ever-expanding market research resources at your fingertips

The IIR enhances its market research resources

• Publication date : 2015/05/27

CryoHub Webinar

CryoHub the EU funded project to demonstrate the potential for cryogenic energy storage at refrigerated warehouses will hold a webinar on 17th March 2021 to share findings and results of this work.

• Publication date : 2020/11/27

Now available: ICR2015 congress papers

Following on from the successful IIR International Congress of Refrigeration (ICR2015), the long anticipated papers and proceedings are now available to download in Fridoc.

• Publication date : 2015/12/09

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

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

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