Search results

IIR document

Generating the optimal magnetic field for magnetic refrigeration.

• Author(s) : BJØRK R., INSINGA A. R., SMITH A., et al.
• Publication date: 2016/09/11
• Languages : English
• Keywords : Calculation, Magnetocaloric cooling, Magnet, Design, Optimization, Magnetic field
• Source: 7^th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VII). Proceedings: Turin, Italy, September 11-14, 2016.
• Formats : PDF

Evaluation tools: cost-optimal and cost-benefit analysis.

• Author(s) : BECCHIO C., D’AGOSTINO D., ZANGHERI P.
• Publication date: 2022/02
• Languages : English
• Keywords : Residential sector, Regulations, European Union, Cost, Optimization, Energy efficiency, Performance, Building, Calculation
• Source: REHVA Journal - vol. 59 - n. 1
• Formats : PDF

IIR document

How to build the optimal magnet assembly for magnetocaloric cooling: Structural optimization with isogeometric analysis;

• Author(s) : WIESHEU M., MERKEL M., SITTIG T., BENKE D., FRIES M., SCHÖPS S., WEEGER O., CORTES GARCIA I.
• Publication date: 2023/08
• Languages : English
• Keywords : Magnet, Magnetocaloric cooling, Magnetocaloric effect, Geometry, Modelling, Optimization
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 152
• Formats : PDF

Concept of adsorbent optimal for adsorptive cooling/heating.

• Author(s) : ARISTOV Y.
• Publication date: 2014/11
• Languages : English
• Keywords : Mass transfer, Adsorbent, Heat transfer, Cooling, Adsorption, Optimization, Heating
• Source: Applied Thermal Engineering - vol. 72 - n. 2

Researches on the optimal process of heat pump intermittent drying.

[In Chinese. / En chinois.]

• Author(s) : ZHAO H., YANG Z., ZHU Z.
• Publication date: 2014/12
• Languages : Chinese
• Keywords : Cabbage, Simulation, Drying, Heat pump, Performance, Optimization, Seed
• Source: Journal of Refrigeration - vol. 35 - n. 160
• Formats : PDF

IIR document

Optimal chiller loading by improved parallel particle swarm optimization algorithm for reducing energy consumption. 

• Author(s) : GAO Z., YU J., HU Q., YANG S.
• Publication date: 2022/04
• Languages : English
• Keywords : Chiller, Energy saving, Energy efficiency, Energy consumption, Optimization, Simulation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 136
• Formats : PDF

A multi-objective approach to optimal battery storage in the presence of demand charges.

• Author(s) : KAMYAR R., PEET M. M.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Electricity, Lithium, Battery, Energy storage, Optimization, Modelling, Solar energy
• Source: 2016 Purdue Conferences. 4^th International High Performance Buildings Conference at Purdue.
• Formats : PDF

IIR document

Theoretical analysis of the optimal ejector operation within the classical ejector refrigeration system.

• Author(s) : METSUE A., NESREDDINE H., PONCET S., BARTOSIEWICZ Y.
• Publication date: 2024/08
• Languages : English
• Keywords : Ejector system, Ejector, CO2, Design, R744, R744, Operation, COP, Modelling, Pressure, Optimization, Modelling
• Source: 16^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2024). Proceedings. University of Maryland, College Park, Maryland, USA, August 11-14 2024
• Formats : PDF

IIR document

Optimal subcooling in vapor compression systems via extremum seeking control: theory and experiments.

• Author(s) : KOELN J., ALLEYNE A. G.
• Publication date: 2014/07
• Languages : English
• Keywords : Mechanical vapour compression, Control (automatic), Compression system, Subcooling, Optimization, Model, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 43
• Formats : PDF

IIR document

Optimal defrost cycle for air coolers revisited: A study of fan-supplied tube-fin evaporators.

• Author(s) : DA SILVA D. L., HERMES C. J. L.
• Publication date: 2018/05
• Languages : English
• Keywords : Defrosting, Evaporator, Modelling, Optimization, Performance, Air cooler, Finned tube, Frost
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 89
• Formats : PDF

Simulation assessment of a near-optimal control algorithm for central cooling plants with chilled water storage.

• Author(s) : JARAMILLO R., BRAUN J., HORTON T.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Electricity, Control (automatic), Chiller, Energy storage, Simulation, Optimization, Case study, USA, Chilled water
• Source: 2018 Purdue Conferences. 5^th International High Performance Buildings Conference at Purdue.
• Formats : PDF

IIR document

Optimal operation of HVAC system incorporated with online performance evaluation based on operation data.

• Author(s) : SHI W., JIN X., ZHANG X., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Computer, China, Artificial neural network, Control (automatic), Airport, Prediction, Optimization, Case study, Energy saving, Chilled water
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

The optimal adsorbent for adsorption chiller cycles.

• Author(s) : GRAF S., BAU U., ERDOGAN M., et al.
• Publication date: 2017/08/07
• Languages : English
• Source: International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.

Recommended by the IIR / IIR document

Machine learning based pressure drop estimation of evaporating R134a flow in micro-fin tubes: Investigation of the optimal dimensionless feature set.

• Author(s) : ARDAM K., NAJAFI B., LUCCHINI A., RINALDI F., COLOMBO L. P. M.
• Publication date: 2021/11
• Languages : English
• Keywords : R134a, Pressure drop, Two-phase flow, Machine learning, Microfin tube, Test rig, Modelling, Horizontal tube, Optimization
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 131
• Formats : PDF

Recommended by the IIR / IIR document

The problem of selecting an energy-optimal cooling system using natural refrigerants in a supermarket application in a humid continental and Mediterranean climate conditions. 

• Author(s) : DROJETZKI L., POROWSKI M.
• Publication date: 2022/04
• Languages : English
• Keywords : CO2, R744, Ammonia, Supermarket, Natural refrigerant, Humid climate, Simulation, Optimization, Poland, Italy, Energy efficiency, R717, Case study
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 136
• Formats : PDF

A British data centre is saving money thanks to thermal optimisation

A leading UK data and telecoms provider claims to have saved over £115,000 (€132,000) in cooling energy costs in a few months.

• Publication date : 2018/01/29

Optimisation of a heat pump for satellite cooling

Satellites are deployed into near earth orbit in order to provide a platform for a wide range of missions, including telecommunications systems, surveillance systems and astronomical systems.These systems have seen a large increase in...

• Publication date : 2015/06/19

Food cold chain optimisation

An Australian report focuses on the improvement of temperature monitoring in the food cold chain to enhance energy productivity.

• Publication date : 2017/08/11

USA: Impact of online grocery shopping on cold storage demand

The evolution of shopping habits may demand cold storage space optimization in the US.

• Publication date : 2018/06/06
• Subjects: Figures, economy

A magnetocaloric air-conditioning system for an electric vehicle

Summary of a paper presented during the 7th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VII), available in Fridoc.

• Publication date : 2017/02/07

Real-time savings in buildings HVAC consumption

HVAC energy costs reductions by 25% are possible thanks to a software that automatically makes real-time adjustments to buildings control.

• Publication date : 2014/04/22

IIR Member news: CETIAT

CETIAT, a corporate member of the IIR, is taking part in a new European research project called the SHERHPA Project. The aim is to develop energy efficient, environmentally friendly heat pumps and the 3-year project involves 19 companies and 10...

• Publication date : 2004/11/10

The Air conditioning and Refrigeration Institute (ARI) issued a white paper on Energy Recovery Ventilation (ERV).

The white paper, entitled "Characterizing the efficiency of energy recovery ventilation and informing the design of HVAC systems", supplements the ARI guideline V: "Calculating the Efficiency of Energy Recovery Ventilation and its Effect on...

• Publication date : 2004/05/18

Course on fruit and vegetables preservation

The Postharvest and Refrigeration Group of the Technical University of Cartagena (Spain) offers the second International Course on Postharvest Technology and Minimal Processing of Fruit and Vegetables, from 23 to 29 April 2008. The Chair of the...

• Publication date : 2008/02/26

Supermarket news

Tesco ( Thailand ) has almost completed a 5-year £18-million programme to replace all CFCs and HCFCs used in its stores and is replacing refrigerating equipment with highly energy-efficient systems. Energy consumption has dropped 30%, this being...

• Publication date : 2005/06/14

ICR2007: CO2 in the limelight

Among the 876 papers presented at the IIR International Congress of Refrigeration in Beijing, 82 were on CO2 as a refrigerant or secondary fluid. Many dealt with new components for CO2, the lack of such components being currently still one of the...

• Publication date : 2007/11/20

Energy storage thanks to refrigeration

Electrical energy is notoriously difficult to store, especially on a large scale and this can be particularly problematical when dealing with irregular sources such as wind power for which there can be a great mismatch between energy supply and...

• Publication date : 2009/02/25

R1234yf as a working fluid in Organic Rankine Cycle systems

A recent review article presented the use of HFO R1234yf and its mixtures in Organic Rankine Cycle (ORC) systems, namely in applications for waste heat recovery from internal...

• Publication date : 2021/09/07
• Subjects: Technology

The benefits of thermal energy storage for cold chain applications

Several presentations at the IIR ICCC 2022 conference focused on the potential applications of Thermal Energy Storage (TES) and Phase-Change Materials (PCMs) and highlighted the...

• Publication date : 2022/07/08

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

Activities of the IIR’s Commission A2 on Liquefaction and Separation of Gases

The problems related to thermodynamic optimization and new technologies in liquefaction and separation of gases are actual and critical for many branches of modern industry, power generation and medicine.

• Publication date : 2014/03/07

IIR Research Priorities

The IIR decided, within the framework of its Strategic Plan, to draw up a list of research priorities for the future. It hopes that these priorities will be a valuable guiding force for decision-makers in the public and private research sectors,...

• Publication date : 2005/07/19

Publish your article in the IJR

Do you have something innovative to say about refrigeration? Find out how you can publish an article in the IIR International Journal of Refrigeration (IJR).

• Publication date : 2015/09/29

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

Brief: Distinctions

François Billiard, Honorary Director of the IIR, was awarded the prestigious Charles Tellier Medal by the French Refrigeration Association (AFF). Nevin Amos, Secretary of Commission D2 and President of the IIR's Working Party on Cold Chain...

• Publication date : 2005/07/19

Brief: Distinctions

- François Billiard, Honorary Director of the IIR, was awarded the prestigious Charles Tellier Medal by the French Refrigeration Association (AFF). - Nevin Amos, Secretary of Commission D2 and President of the IIR's Working Party on Cold Chain...

• Publication date : 2005/07/19

Frisbee project: We need your input !

The IIR is involved in a European Union-funded project called FRISBEE (Food Refrigeration Innovations for Safety, consumers Benefit, Environmental impact and Energy optimization along the cold chain in Europe). Currently, one of the most important...

• Publication date : 2011/02/16

FRISBEE project: We need your input!

The IIR is involved in a European Union-funded project called FRISBEE (Food Refrigeration Innovations for Safety, consumers Benefit, Environmental impact and Energy optimization along the cold chain in Europe). Currently, one of the most important...

• Publication date : 2011/02/16

June 2004: fruitful meetings of the IIR’s statutory committees

Here are some highlights of the annual meetings of the IIR's statutory bodies (Management Committee, Science and Technology Council [STC] and Executive Committee): Strategic Plan of the IIR Four years after having adopted its Strategic...

• Publication date : 2004/07/27

Briefs: Frisbee

The launch meeting of the European Union-funded Frisbee (Food Refrigeration Innovations for Safety, consumers Benefit, Environmental impact and Energy optimization along the cold chain in Europe) project was held on September 8-10, 2010, in the...

• Publication date : 2011/02/07

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

Editorial by Didier Coulomb

The 23rd International Congress of Refrigeration (ICR2011) will take place in Prague on August 21-26, 2011. This will be the key refrigeration event in 2011 and will deal with all facets of refrigeration and refrigeration technology. Around...

• Publication date : 2011/02/07

Member news: Ultra-low temperatures. NIST creates a more efficient pulse-tube refrigerator prototype

American researchers have created a prototype pulse-tube refrigerator that significantly reduces the time and energy required to reach temperatures close to absolute zero: an exciting advance for the quantum...

• Publication date : 2024/06/27

Editorial by Didier Coulomb

The IIR's mission is to disseminate the outcomes of research on refrigeration technologies and applications. Through its Framework Programmes for Research and Technological Development (FPRD) the European Union regularly funds major research...

• Publication date : 2011/02/04

The International Journal of Refrigeration (IJR)

The IJR is the most important scientific journal in the field of refrigeration technology. It is a co-publication of Elsevier and the IIR. Eight issues are published each year, with over 15 articles per issue. Certain issues are totally or...

• Publication date : 2006/07/26

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)

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

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

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