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IIR document

Experimental investigation and new correlation for the bubble departure diameter of methane and ethane binary mixtures during nucleate pool boiling.

• Author(s) : LI Z., XUE H., SHEN J., ZHAO Y., GONG M.
• Publication date: 2022/05
• Languages :
• Keywords : Methane, Ethane, Bubble, Pool boiling, Correlation, Model, Joule-Thomson, Modelling, LNG, Liquefaction
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 137
• Formats : PDF

Nuevo modelo dinámico de un intercambiador enterrado en TRNSYS: adaptación del modelo B2G a largos periodos de simulación.

New dynamic model of a buried exchanger by using TRNSYS: B2G model adaptation to wide simulation periods.

• Author(s) : MARÍN A. C., RUIZ CALVO F., MONTAGUD MONTALVÁ C., et al.
• Publication date: 2016/05/03
• Languages : Spanish
• Keywords : Geothermy, Simulation, Heat pump, Ground-source system, Model, Heat exchanger
• 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

Thermal comfort adaptive model for the subtropics.

• Author(s) : MONTEIRO L. M., ALUCCI M. P.
• Publication date: 2013/06/16
• Languages : English
• Keywords : Brazil, Model, Survey, Thermal comfort
• Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
• Formats : PDF

Modelo dinámico para pequeñas redes urbanas de calefacción en las zonas rurales.

Dynamic model for small district heating networks in rural areas.

• Author(s) : BESTRZYNSKI G. K., RAZANI A. R., JANSSEN H., et al.
• Publication date: 2014/10
• Languages : Spanish
• Keywords : Network, Model, Hydraulics, District heating
• Source: Frío Calor Aire acondicionado - vol. 42 - n. 473
• Formats : PDF

Des modèles d'entrepôts frigorifiques téléchargeables gratuitement.

Freely available cold store energy models.

• Author(s) : FOSTER A.
• Publication date: 2013/07
• Languages : French
• Keywords : Heat balance, Energy consumption, Energy, Calculation, Model, Cold store
• Source: Revue générale du Froid & du Conditionnement d'air - vol. 103 - n. 1135
• Formats : PDF

Model-based quality prediction and optimization of refrigeration products.

[In Chinese. / En chinois.]

• Author(s) : YANG L., ZHANG C.
• Publication date: 2013/08
• Languages : Chinese
• Keywords : Refrigerating equipment, Quality, Prediction, Optimization, Model, Cryogenics
• Source: Journal of Refrigeration - vol. 34 - n. 152
• Formats : PDF

IIR document

Dynamic model for the orbiting scroll based on the pressures in scroll chambers. 2. Investigations on scroll compressors and model validation.

• Author(s) : QIANG J., PENG B., LIU Z.
• Publication date: 2013/11
• Languages : English
• Keywords : Model, Pressure, Survey, Scroll compressor
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 7
• Formats : PDF

Research and development of numerical model of LNG dispersion.

• Author(s) : ZHANG X., LI J., LIU L., et al.
• Publication date: 2015/10
• Languages : English
• Keywords : Calculation, Atmosphere, Model, LNG, Leakage
• Source: Cold Facts - vol. 31 - n. 5

IIR document

Dynamic model for the orbiting scroll based on the pressures in scroll chambers. 1. Analytical modeling.

• Author(s) : QIANG J., PENG B., LIU Z.
• Publication date: 2013/11
• Languages : English
• Keywords : Geometry, Modelling, Model, Pressure, Scroll compressor
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 7
• Formats : PDF

A simple model for predicting natural ventilation in buildings.

• Author(s) : WANG H., CHEN Q.
• Publication date: 2013/06/16
• Languages : English
• Keywords : Building, Natural ventilation, Prediction, Model
• Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
• Formats : PDF

IIR document

Numerical model for microchannel condensers and gas coolers. I. Model description and validation.

• Author(s) : MARTÍNEZ-BALLESTER S., CORBERÁN J. M., GONZÁLVEZ-MACIÁ J.
• Publication date: 2013/01
• Languages : English
• Keywords : Thermal conductivity, Fin, Calculation, Microchannel, Gas cooler, Model, Condenser, Heat exchanger
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 1
• Formats : PDF

Development, validation, and assessment of a high fidelity chilled water plant model.

• Author(s) : BAILLIE B. P., BOLLAS G. M.
• Publication date: 2017/01/25
• Languages : English
• Keywords : Comparison, Chiller, Optimization, Modelling, Model, Chilled water
• Source: Applied Thermal Engineering - vol. 111

IIR document

Freely available cold store energy models.

• Author(s) : FOSTER A., ZILIO C., CORRADI M., et al.
• Publication date: 2013/04/02
• Languages : English
• Keywords : Heat balance, Energy consumption, Energy, Calculation, Model, Cold store
• Source: 2^nd IIR International Conference on Sustainability and the Cold Chain. Proceedings: Paris, France, April 2-4, 2013.
• Formats : PDF

IIR document

A flexible numerical model of a multistage active magnetocaloric regenerator.

• Author(s) : SCHROEDER M. G., BREHOB E.
• Publication date: 2016/05
• Languages : English
• Keywords : Regenerator, Magnetocaloric property, Multistage system, Model, Magnetism
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 65
• Formats : PDF

Development of the adaptive model in Japanese houses.

• Author(s) : RIJAL H. B., NAKAYA T.
• Publication date: 2013/06/16
• Languages : English
• Keywords : Japan, Single-family house, Temperature, Model, Survey, Thermal comfort
• Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
• Formats : PDF

Updating ammonia dispersion models

Research is underway in order to improve existing ammonia-dispersion behaviour models.

• Publication date : 2012/01/19

First car models using HFO-1234yf

During the recent Mobile Air Conditioning Society Worldwide convention and trade show in Las Vegas, USA, discussions focused on the vehicles will have the new HFO-1234yf refrigerant. It was revealed that one vehicle was already being sold with the...

• Publication date : 2012/07/03

Out of the ordinary: ATLAS LEGO® model

As part of an outreach project at the Niels Bohr Institute Sascha Mehlhase recently designed and built a model of the ATLAS experiment in LEGO® bricks. It illustrates all details, from the muon and magnet system to the innermost pixel...

• Publication date : 2012/04/24

MAC: EU orders Germany to stop using R134a in new models of vehicles

The European Commission ordered Germany to stop using R134a or to face court action and possible fines.

• Publication date : 2014/10/30

Modelling energy use in a frozen food supermarket

A study presents a simulation used to model energy consumption in a frozen food supermarket in United Kingdom.

• Publication date : 2017/04/25

The European Intermodal Research Advisory Council

The European Intermodal Research Advisory Council, set up on May 3, 2005, forms the basis for coordinated intermodal research strategy for Europe. Composed of some 50 key players from large intermodal businesses, intermodal rail and road...

• Publication date : 2005/07/19

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

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

Challenges related to the adoption of air conditioning in emerging economies by 2040

The authors of a recent article modelled the adoption of air conditioning by 2040 in four emerging economies: Brazil, India, Indonesia, and Mexico. The adoption of AC could increase between two- to sixteen-fold,...

• Publication date : 2021/11/29
• Subjects: Figures, economy, Developing country

Impact of indoor heat on mortality in the elderly

A team of researchers has developed a model to assess the impact of indoor heat on the health status of populations, and more specifically on the mortality of people over 65 years of age. 

• Publication date : 2021/06/28

Must read in IJR: a comprehensive review on fault detection in HVAC systems

The latest research and developments in the fault detection and diagnostics of HVAC systems are presented in several articles recently published in the IJR.

• Publication date : 2023/02/13
• Subjects: Technology

Supercomputer with advanced cooling system to support NASA moon missions

The new liquid-cooled Aitken supercomputer will run modeling and simulation workloads for lunar landings.

• Publication date : 2019/09/30

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

LG unveils world's largest home refrigerator

LG Electronics claims to have launched the world's largest home refrigerator. It has 4 doors and an internal storage capacity of 910 litres, this being 40 litres more than the largest previously existing models.

• Publication date : 2012/12/17

CERN’s LHC on a hunt for Higgs boson

Two experiments led at CERN, ATLAS and CMS, attempt to discover data hinting at the existence or non-existence of the Higgs boson, a particle which is crucial to the Standard Model in physics.

• Publication date : 2012/03/09

Only a few days left to enter the IIR Best Student Paper Competition at ICR 2019

Open to students up to Master’s level (obtained within the last 12 months of the submission deadline), the IIR Best Student Paper Competition will be a unique opportunity not only to bring to the limelight the work achieved by today’s future...

• Publication date : 2019/01/15

IIR launches Best Student Paper Competition at ICR 2019

Open to students up to Master’s level (plus one year), the IIR Best Student Paper Competition will give a unique opportunity to not only to bring to the limelight the work achieved by today’s future talents, but also to emphasise the importance...

• Publication date : 2018/05/04

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

New publications: The CD-ROM proceedings of the 1st IIR International Conference on Magnetic Refrigeration at Room Temperature

The CD-ROM proceedings of the 1st IIR International Conference on Magnetic Refrigeration at Room Temperature held in Montreux, Switzerland, are now available. They comprise 4 keynote presentations, 20 papers on materials (gadolinium and its...

• Publication date : 2006/01/28

Conference report: Australia

Postharvest Unlimited Downunder 2004, an IIR-co-sponsored conference, was held in Sydney, Australia, on November 9-12, 2004, with as theme "Postharvest technologies for the delivery of high quality horticultural products - implementation based on...

• Publication date : 2005/02/11

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

New IIR Informatory Note on the carbon footprint of the cold chain

The IIR has just issued a new Informatory Note on the carbon footprint of the cold chain. It highlights the food safety and environmental benefits of an improved global cold chain.

• Publication date : 2021/06/07
• Subjects: Technology, Developing country, Environment

Conferences

Interested in refrigerated storage, transportation and display of food products? Find out more: http://fetweb.ju.edu.jo/conferences/confiir/confiir.html...

• Publication date : 2005/02/11

IIR Women in Refrigeration Award at ICR 2023

During the 26th International Congress of Refrigeration in Paris in August 2023, a brand new award will be presented: the IIR Women in Refrigeration Award. It will reward exceptional scientific work...

• Publication date : 2022/07/08

Frisbee Project: Latest Developments

Frisbee is a European-Union-funded 4-year project. It was launched in September 2010 and involves 26 partners including the IIR. the IIR is in charge of collecting data and the dissemination of research outcomes. The aim is to provide new...

• Publication date : 2011/12/20

New IIR Informatory Note on the carbon footprint of the cold chain

The IIR has just issued a new Informatory Note on the carbon footprint of the cold chain. It highlights the food safety and environmental benefits of an improved global cold chain. 

• Publication date : 2021/04/29
• Subjects: Developing country

News from IIR members: Solar hybrid air conditioner launched by LG

LG Electronics (LG) recently announced Korea's first eco-friendly residential hybrid air conditioner that utilizes solar energy as part of its power supply. By combining power generated through the solar cell module attached to the top of the...

• Publication date : 2011/02/07

Brief: Prof. Clark Bullard

Prof. Clark Bullard, President of the IIR's Commission B2, was awarded the UK Institute of Refrigeration (IoR) J & E Hall Gold Medal on February 9, 2005 during the IoR's prestigious 105th Anniversary Dinner held in London. This award for the...

• Publication date : 2005/06/14

News from IIR members: Tecumseh

Tecumseh has won the French Golden Decibel Award for its second-generation Silensys condensation units. The Conseil National du Bruit (the French national organization dealing with noise issues) presented this award in recognition of the noise...

• Publication date : 2010/05/27

News from IIR members: Tecumseh’s new quiet range

According to the French health authorities (DDASS), over 50% of complaints concerning air-cooled condensing units used in commercial refrigeration are noise-related. Tecumseh has developed a range of 45 Silensys® condensing unit models that have...

• Publication date : 2009/02/24

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)

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

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

Nanorefrigerants

Nanorefrigerants are created by adding nanoparticles in suspension to a base refrigerant. They have a thermal conductivity that is 15% to 104% higher than that of the corresponding...

• Last update : 2022/06/17
• Langues : English, French
• Themes : Nanofluids

Cryogenics in the pharmaceutical industry: drug design and bioavailability improvement

Research activities in the pharmaceutical sector focus primarily on developing novel drug formulations which can elicit the desired response upon being administered to the patient...

• Last update : 2023/03/10
• Langues : French, English
• Themes : Freeze-drying in biology and medicine, Cryobiology, cryomedicine: general information

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 : 2022/06/20
• Langues : French, English
• Themes : LNG and LPG