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IIR document

An assessment of optimal airside heat transfer per unit friction power characteristics of compact heat exchangers.

• Author(s) : QASEM N. A. A., AL-GHAMDI A., ZUBAIR S. M.
• Publication date: 2019/03
• Languages : English
• Keywords : Friction, Heat transfer, Power, Simulation, Performance, Compact heat exchangeur
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 99
• Formats : PDF

IIR document

Generalized air-side friction and heat transfer correlations for wavy-fin compact heat exchangers.

• Author(s) : QASEM N. A. A., ZUBAIR S. M.
• Publication date: 2019/01
• Languages : English
• Keywords : Geometry, Fin, Correlation, Heat transfer, Simulation, Compact heat exchangeur, Heat exchanger
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 97
• Formats : PDF

IIR document

Airside thermal and hydraulic characteristics of compact bare tube heat exchanger under dry and wet conditions.

• Author(s) : HUANG Z., LING J., BACELLAR D., et al.
• Publication date: 2020/02
• Languages : English
• Keywords : Mass transfer, Heat transfer, Reynolds, Bare pipe, Expérimentation, Compact heat exchangeur
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 110
• Formats : PDF

Investigation of the operation conditions of an absorption cycle with compact heat exchangers.

• Author(s) : OLBRICHT M., LUKE A.
• Publication date: 2014/03/02
• Languages : English
• Keywords : Absorption, Optimization, Survey, Compact heat exchangeur, Heat exchanger, Water-lithium bromide
• Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
• Formats : PDF

IIR document

Experimental and numerical study of the compact heat exchanger with different microchannel shapes.

• Author(s) : GLAZAR V., FRANKOVIC B., TRP A.
• Publication date: 2015/03
• Languages : English
• Keywords : Geometry, Microchannel, Heat transfer, Air-water, Expérimentation, Compact heat exchangeur, Heat exchanger
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 51
• Formats : PDF

IIR document

Visualization of flow distribution in rectangular and triangular header geometries.

• Author(s) : MAHVI A. J., GARIMELLA S.
• Publication date: 2017/04
• Languages : English
• Keywords : Two-phase flow, Geometry, Minichannel, Measurement, Design, Compact heat exchangeur, Distribution
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 76
• Formats : PDF

IIR document

Modeling the heat transfer and the pressure loss in flat fin-and-tube compact heat exchangers.

• Author(s) : AGUIAR M., GASPAR P. D., SILVA P. D.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Geometry, Correlation, Heat transfer, Reynolds, Simulation, Prediction, Compact heat exchangeur, Pressure drop
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Effect of different fin geometries on the thermal and hydraulic performance of PCM-compact heat exchanger.

• Author(s) : FRANK J. Y., BORMAN D. J., GREICIUNAS E., KHAN A., SUMMERS J.
• Publication date: 2024/05/31
• Languages : English
• Keywords : PCM, CFD, Aircraft, Modelling, Flow rate, Geometry, Plate-fin, Compact heat exchangeur
• Source: 14^th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings:  Paris France, May 29-31, 2024.
• Formats : PDF

IIR document

Effect of tube diameter on boiling heat transfer and flow characteristic of refrigerant R32 in horizontal small-diameter tubes.

• Author(s) : JIGE D., SAGAWA K., INOUE N.
• Publication date: 2017/04
• Languages : English
• Keywords : Horizontal tube, Heat transfer, R32, Expérimentation, Compact heat exchangeur, Flow boiling, Pressure drop
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 76
• Formats : PDF

IIR document

Refrigerant charge optimisation for propane heat pump water heaters.

• Author(s) : GHOUBALI R., BYRNE P., BAZANTAY F.
• Publication date: 2017/04
• Languages : English
• Keywords : Water heater, R290, Heat pump, Optimization, Flammability, Compact heat exchangeur, COP, Refrigerant charge
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 76
• Formats : PDF

IIR document

Modelling of split condenser heat pump: optimization and exergy analysis.

• Author(s) : CHRISTENSEN S. W., ELMEGAARD B., MARKUSSEN W. B., et al.
• Publication date: 2017/05/11
• Languages : English
• Keywords : Split system, Temperature, Compression system, Heat pump, Optimization, Compact heat exchangeur, COP, Condenser
• Source: 7^th Conference on Ammonia and CO₂ Refrigeration Technology. Proceedings: Ohrid, North Macedonia, May 11-13, 2017.
• Formats : PDF

Recommended by the IIR / IIR document

Review of small-capacity single-stage continuous absorption systems operating on binary working fluids for cooling: Compact exchanger technologies.

• Author(s) : ALTAMIRANO A., STUTZ B., LE PIERRÈS N.
• Publication date: 2020/06
• Languages : English
• Keywords : Chiller, Absorption, Exchanger, Heat exchanger, Absorber, Single-stage system, Compact heat exchangeur, Review
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 114
• 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
• Keywords : R134a, Finned tube, Air-water, Heat pump, Performance, Compact heat exchangeur, Refrigerant charge
• 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

IIR document

Comparison of correlations for modelling heat exchanger performance in a compact ammonia refrigeration unit.

• Author(s) : SALGADO FUENTES V., BOCCIA R., MARKUSSEN W. B., ROTHUIZEN E. D., KRISTOFERSSON J., MADSEN C., ELMEGAARD B.
• Publication date: 2020/12/07
• Languages : English
• Keywords : Heat exchanger, Ammonia, Chiller, Heat transfer coefficient, Plate exchanger, Simulation, Modelling, Compact heat exchangeur
• Source: 14^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2020). Proceedings. Kyoto, Japon, December 7-9^th 2020.
• Formats : PDF

Évaporateurs compacts pour les systèmes à sorption.

Compact evaporators for sorption systems.

• Author(s) : GIRAUD F., TREMEAC B., VALLON P., et al.
• Publication date: 2017/03
• Languages : French
• Keywords : Absorption system, Prototype, Adsorption system, Expérimentation, Evaporator, Energy efficiency, Compact heat exchangeur, Refrigerant
• Source: Revue générale du Froid & du Conditionnement d'air - n.1162

A propane heat pump with compact bionic heat exchangers

In Germany, Fraunhofer has developed a propane heat pump using compact finned heat exchangers with distribution boxes whose structure is inspired by nature.

• Publication date : 2018/09/27

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

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

CHEs in heat pumps

In its Annex 33, "Compact Heat Exchangers in Heat Pumping Equipment" issued in September 2010, the Heat Pump Programme details the benefits of using compact heat exchangers (CHEs): . Improved heat exchanger thermal effectiveness: thermal...

• Publication date : 2011/02/07

IIR 2023 conference in Ohrid: focus on CO2 heat pumps

As demonstrated at the last IIR conference in Ohrid , heat pumps are a potential development area for the use of CO2, in particular for the thermal management of electric vehicles. 

• Publication date : 2023/05/26
• Subjects: Technology

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

GL2012 highlights: compact CO2 air-heating heat pump for industrial drying

Researchers in Japan studied and developed a small capacity CO2 heat pump for industrial drying that is hoped will reduce power consumption to about one third.

• Publication date : 2012/10/04

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

Linear compressors for refrigeration: benefits and challenges

Linear compressors have significant advantages over conventional crank-driven compressors, but the main challenge remains cost.

• Publication date : 2018/05/04

Plans for a floating LNG factory

This new type of floating factory could give access to off-shore reserves, without the use of long and expensive ocean-bed pipelines

• Publication date : 2012/04/23

UK: a dual purpose heat pump chiller with heat recovery

A Salisbury District Hospital’s unit has recently been equipped with an innovative high efficiency heat pump chiller.

• Publication date : 2018/02/18

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

Solar perspectives for cooling in the Gulf

Air conditioning is claimed to account for 60% of the energy consumption in Gulf Cooperation Council (GCC) countries, and various options for lowering the air-conditioning energy demand are being considered.

• Publication date : 2013/03/04

World's smallest electronic expansion valve

Danfoss recently presented a small electronic expansion valve, especially used for air conditioners with variable refrigerant flow.

• Publication date : 2020/07/01

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

News from IIR members: Alfa Laval

Alfa Laval is providing solutions for the fast-expanding CO2 market and has launched two new brazed heat exchanger models designed for transcritical CO2 systems for transport refrigeration, commercial refrigeration and heat-pump applications. The...

• Publication date : 2009/12/09

Conference update: Stockholm

The 2nd IIR Workshop on Refrigerant Charge Reduction in Refrigerating Systems will be held in Stockholm, Sweden, on June 16-17, 2010. The main themes are: design of low-refrigerant charge systems thermodynamics in compact heat exchangers; design...

• Publication date : 2010/03/07

Conference update: Stockholm

The 2nd IIR Workshop on Refrigerant Charge Reduction in Refrigerating Systems will be held in Stockholm, Sweden, on June 16-17, 2010. Key themes include: design of low-refrigerant charge systems; thermodynamics in compact heat exchangers; design...

• Publication date : 2010/05/27

IIR Working Party on Refrigerant Charge Reduction in Refrigerating Systems: Join Us!

Suitable design of refrigerating systems has several benefits in terms of limitation of the environmental impact thanks to a reduction in the energy consumption and the limitation of refrigerant emissions. The direct greenhouse effect accounts for...

• Publication date : 2008/10/25

IIR member news: Daikin launches new VRV solution

Daikin has launched a new VRV solution to meet the specific demands of city and urban locations where space is limited and customers want an invisible air conditioning solution.

• Publication date : 2015/09/20

ELICiT: A great success at ThermagVII

At the occasion of Thermag VII conference held in Turin, Italy, attended by approximately 200 delegates of which more than 70 came from companies, the IIR organised, coordinated and facilitated the last ELICiT workshop held on September 14th 2016.

• Publication date : 2016/11/29

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: Technology, HFCs alternatives

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

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

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