Search results

Recommended by the IIR

Échangeurs de chaleur, cours et exercices corrigés.

• Author(s) : MELLARI S.
• Publication date: 2020/12
• Languages : French
• Keywords : Heat exchanger, Seal, Fin, Plate exchanger, Heat transfer coefficient, Efficiency, Training
• Formats : PDF

Efficiency analysis of heat exchangers and heat exchanger networks.

• Author(s) : FAKHERI A.
• Publication date: 2014/09
• Languages : English
• Keywords : Heat transfer, Design, Network, Efficiency, Heat exchanger
• Source: International Journal of Heat and Mass Transfer - vol. 76

Optimal design of plate heat exchangers.

• Author(s) : MOTA F. A. S., RAVAGNANI M. A. S. S., CARVAHLO E. P.
• Publication date: 2014/02
• Languages : English
• Keywords : Simulation, Optimization, Heat exchanger, Plate exchanger
• Source: Applied Thermal Engineering - vol. 63 - n. 1

IIR document

Comparison of heat exchange rates between straight and slinky horizontal ground heat exchanger.

• Author(s) : SELAMAT S., MIYARA A., KARIYA K.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Spleen, Heat transfer, Ground, Simulation, Heat pump, Heat exchanger
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Plate heat exchanger used as evaporators.

• Author(s) : ILIE A., DRUGHEAN L., SERBAN A., et al.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Heat transfer coefficient, Ammonia, Expérimentation, Evaporation, Heat exchanger, Plate exchanger
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

Heat transfer in horizontal ground heat exchangers.

• Author(s) : KUPIEC K., LARWA B., GWADERA M.
• Publication date: 2015/01/22
• Languages : English
• Keywords : Geothermy, Temperature variation, Heat transfer, Ground, Modelling, Heat exchanger
• Source: Applied Thermal Engineering - vol. 75

IIR document

Heat transfer during condensation in corrugated plate heat exchangers.

• Author(s) : SHAH M. M.
• Publication date: 2021/07
• Languages : English
• Keywords : Plate exchanger, Hydrocarbon, Heat exchanger, Condensation, Heat transfer, Correlation, Prediction, Equation of state, Water, Ammonia, Database
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 127
• Formats : PDF

Geothermal earth heat exchanger.

• Author(s) : PANICKER R.
• Publication date: 2016/11
• Languages : English
• Keywords : Geothermy, Ventilation, Heat transfer, Design, Ground-source system, Modelling, Heat exchanger
• Source: Air Conditioning and Refrigeration Journal - vol. 19 - n. 6
• Formats : PDF

Review of fractal heat exchangers.

• Author(s) : HUANG Z. W., HWANG Y. H., AUTE V., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Thermal analysis, Heat transfer, Design, Performance, Hydraulics, Heat exchanger
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Heat transfer enhancement using approximation assisted optimization for pillow plate heat exchangers.

• Author(s) : ELDEEB R., LING J., AUTE V., et al.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Heat transfer coefficient, CFD, Design, Performance, Optimization, Heat exchanger, Plate exchanger, Pressure drop
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Numerical investigation of heat transfer and fluid flow in plate heat exchanger using nanofluids.

• Author(s) : TIWARI A. K., GHOSH P., SARKAR J., et al.
• Publication date: 2014/11
• Languages : English
• Keywords : Software, Heat transfer, Simulation, Nanofluid, Expérimentation, Heat exchanger, Plate exchanger
• Source: International Journal of thermal Sciences - vol. 85

IIR document

Study of heat exchange process in heat exchangers of refrigerating systems using electric hydraulic aerosols.

• Author(s) : BABAKIN B. S., VORONIN M. I., BELOZEROV G. A., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Spray, Liquid, Heat transfer, Aerosol, Hydraulics, Drop, Testing, Electric field, Heat exchanger, Distribution
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Evaporation heat transfer of water in plate heat exchangers with operation parameters at high temperature conditions.

• Author(s) : KIM S. W., BAEK C., LEE J. S., et al.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Heat transfer, Expérimentation, Evaporation, Heat exchanger, Plate exchanger
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Temperature efficiency analysis of absorption heat exchangers.

• Author(s) : XIE X., JIANG Y.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Heat transfer, Temperature, Efficiency, Absorption, Performance, Heat exchanger
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

Heat transfer enhancement with gas-to-gas micro heat exchangers.

• Author(s) : GERKEN I., BRANDNER J. J., DITTMEYER R.
• Publication date: 2016/01/25
• Languages : English
• Keywords : Gas, Heat transfer, Energy efficiency, Heat exchanger, Pressure drop
• Source: Applied Thermal Engineering - vol. 93

Nanotechnology: the future of heat exchangers?

The US Department of Energy has awarded contracts to improve energy efficiency. One such contract, awarded to TIAX, a technology development company, through the Small Business Innovation Research (SBIR) programme, shall be used to develop a...

• Publication date : 2006/01/24

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

Heat exchanger design can improve the performance of PCMs

According to a recent review article, optimising the design of heat exchangers in latent heat thermal energy storage systems (LHTES) is one way of improving the thermal conductivity of phase change materials...

• Publication date : 2021/02/12
• Subjects: Technology

Earth-to-air heat exchanger for air conditioning in a Colombian tropical weather

In a recent theoretical study, a passive cooling system using an earth-to-air heat exchanger (EAHE) was modelled for the Colombian tropical weather.

• Publication date : 2021/08/02
• Subjects: Developing country, 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

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

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

Use of all-aluminum coils increasing

All-aluminum heat exchanger coils called microchannel coils have been used in the automotive industry for over 20 years, but the technology – which uses an all-aluminium brazed fin construction – has been applied to the HVAC&R industry only...

• Publication date : 2014/10/08

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

Neutrons provide first images of refrigerant flow

Researchers at DOE’s Oak Ridge National Laboratory have captured undistorted snapshots of refrigerants flowing through small heat exchangers, helping to further elucidate characteristics of heat transfer.

• Publication date : 2015/05/28

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

Performance of R32 and R290 as alternatives to R22 and R410A in domestic air conditioning

According to the authors, regardless of the capacity difference, R290 could be considered as the most appropriate substitute in air conditioners with small finned tube heat exchangers

• Publication date : 2014/09/25

Cooling solutions for hybrid electric aircraft

The electrification of aircraft propulsive systems requires specific cooling technologies as part of the decarbonation of the aviation industry. A recent review article presents...

• Publication date : 2023/08/25
• Subjects: Technology

Nanotechnology based approaches to increase the performance of HVAC systems

EnE-HVAC, or Energy efficient heat exchangers for HVAC applications, is a collaborative project funded by the EU to achieve significant energy savings in future HVAC systems via new and innovative technologies.

• Publication date : 2015/04/24

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

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

News from IIR members: Alfa Laval wins € 6 million energy efficiency order in Kazakhstan

Alfa Laval – a world leader in heat transfer, centrifugal separation and fluid handling – recently won an order to supply Alfa Laval Packinox heat exchangers to a refinery in Kazakhstan.

• Publication date : 2011/12/14

IIR member news: Angelantoni Group

“COLD ENERGY” is an innovative solution to improve energy efficiency both for old and new compression refrigeration systems by transferring a highly efficient automotive technology to enhance energy recovery of heat exchangers.

• Publication date : 2017/01/20

New IIR Informatory Note on solar cooling and other new publications

The IIR has just published an Informatory Note on solar cooling and has posted the Chinese version of the Informatory Note on the role of refrigeration in worldwide nutrition on its website.

• Publication date : 2021/01/26

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

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: 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

New publications: The CD-ROM proceedings of the Vicenza IIR Conferences

The CD-ROM proceedings of the Vicenza IIR Conferences on 1) Commercial Refrigeration and 2) Thermophysical Properties and Transfer Processes of Refrigerants are on sale. They comprise 134 papers. Main topics: 1) display cabinets, energy simulation...

• Publication date : 2006/01/28

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 Conference: Auckland

Innovative Equipment and Systems for Comfort and Food Preservation , an IIR conference, will be held in Auckland, New Zealand, on February 16-18, 2006. Deadlines: June 1, 2005 for abstracts and September 16, 2005 for papers. December 9, 2005:...

• Publication date : 2005/06/14

ICR 2011 in Prague: a Resounding Success

The 23rd IIR International Congress of Refrigeration held in Prague, on August 21-26, 2011, was highly successful...

• Publication date : 2011/08/30

News from IIR members: Kinarca

Kinarca obtains ISO 22000 certification for its gel-ice machine. Bureau Veritas Certification has certified that Kinarca's Food Security system applied to the design process, manufacturing assembly and maintenance of flo-ice machines is according...

• Publication date : 2009/02/24

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

ICR2007 in Beijing

The International Institute of Refrigeration (IIR) holds Congresses every 4 years. They have two objectives: - a scientific objective: apart from the numerous IIR and IIR-co-sponsored conferences (about 50 over a 4-year period), which are focused...

• Publication date : 2007/11/20

News from IIR members: Mayekawa

Mayekawa has supplied 6 Pascal Air units to Fukazawa Reizo's refrigerated fish warehouse in Yaizu, Japan. The Pascal Air units were launched recently and comprise a turbo-type expander, a compressor, a primary cooler and a heat recovery heat...

• Publication date : 2010/05/27

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

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

Environmental impact of the ice cream industry

This summary document describes the environmental impact of ice cream manufacturing, which is mainly due to the energy consumption and refrigerants used.

• Last update : 2022/11/17
• Langues : French, English
• Themes : General information on environment (climate change, ozone depletion…)

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

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)