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Solar optical properties of roller shades: modeling approaches, measured results and impact on daylighting and visual comfort.

• Author(s) : CHAN Y-C., TZEMPELIKOS A., PROTZMAN B.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Energy, Commercial building, Solar radiation, Optical property, Shading, Modelling, Lighting, Thermal comfort
• Source: 2014 Purdue Conferences. 3rd International High Performance Buildings Conference at Purdue.
• Formats : PDF

IIR document

Assembled design of unit-cell thermal shifters for multipurpose thermal metamaterials.

• Author(s) : KANG S., PARK G., SEO K., et al.
• Publication date: 2017/04/23
• Languages : English
• Keywords : Thermodynamics, Inverter, Diffuser, Optical property, Plate, Material, Expérimentation
• Source: 5^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
• Formats : PDF

IIR document

Spectroscopy and laser-induced cooling characteristics of 4%Yb³⁺: YAG crystals

• Author(s) : ZHANG J., XU J., ZHANG Z., WANG C., ZHONG B.
• Publication date: 2024/08/24
• Languages : English
• Keywords : Spectroscopy, Laser, Crystal, Performance, Thermal property, Fluorescence, Measurement, Expérimentation, Optical refrigeration
• Source: 10^th IIR Conference on Caloric Cooling and Applications of Caloric Materials
• Formats : PDF

IIR document

Radiation absorption and heat collection characteristics of graphene/paraffin composite phase change material.

• Author(s) : OUYANG L., XU G., YAN J., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Thermal property, Paraffin, Heat, Solar radiation, Absorption, Optical property, PCM, Nanoparticle, Modelling, Expérimentation, Thermal energy storage
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Thermodynamic properties of low-GWP alternative refrigerants.

• Author(s) : FUKUSHIMA M., HAYAMIZU H., HASHIMOTO M.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Low GWP, Thermodynamic property, Substitute, Expérimentation, Refrigerant
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Cryogenic cooling system Brayton for 10 J/10 Hz Yb: YAG multi-slab based laser system at ELI-Beamlines project.

• Author(s) : SCHUSTR P., FIBRICH M., POLAN J., et al.
• Publication date: 2016/06/22
• Languages : English
• Source: 1^st IIR International Conference of Cryogenics and Refrigeration Technology (ICCRT 2016). Proceedings: Bucharest, Romania, June 22-25, 2016.
• Formats : PDF

IIR document

Cryogenic cooling system Brayton with new configuration for 10J/10Hz Yb:YAG multi-slab based laser system at eli-beamlines project.

• Author(s) : SCHUSTR P., FIBRICH M., POLAN J., et al.
• Publication date: 2017/05/15
• Languages : English
• Source: Cryogenics 2017. Proceedings of the 14^th IIR International Conference: Dresden, Germany, Mai 15-19, 2017.
• Formats : PDF

Thermodynamic properties of low-GWP refrigerant for centrifugal chiller.

• Author(s) : FUKUSHIMA M., HAYAMIZU H., HASHIMOTO M.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Vapour pressure, Measurement, Low GWP, Thermodynamic property, HFO, Refrigerant
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Recommended by the IIR

Materials, structures, and devices for dynamic radiative cooling.

• Author(s) : WANG J., TAN G., YANG R., ZHAO D.
• Publication date: 2022/12/21
• Languages : English
• Source: Cell Reports Physical Science. - vol. 3 - n. 12
• Formats : PDF

IIR document

Influence of ground water flow on implementation of distributed thermal response test.

• Author(s) : BOBAN L., LEPOŠA L., SOLDO V., et al.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Thermal property, Geothermy, Ground, Heat pump, Flow, Croatia, Underground water
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Design of a refrigeration machine with accurate inline refrigerant-oil property measurements for operation optimization.

• Author(s) : CIKMAZ C., YANG X., OLTERSDORF T., URBANECK T., RICHTER M.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Propane, R290, Thermodynamic property, Expérimentation, Thermodynamic cycle, Lubricant, Design, Sensor, Optimization
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Findings on thickening Glauber’s salt.

• Author(s) : MÜLLER L., GUARDA D., LEIGGENER J., MULLER A., MARANDA S., STAMATIOU A., WORLITSCHEK J.
• Publication date: 2021/09/01
• Languages : English
• Keywords : Expérimentation, Salt (generic), Hydrate, Stability, Supercooling, Calorimetry, Thermodynamic property, Thermal property, Mixture, Cycle, Enthalpy
• Source: 13^rd IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: (online) Vicenza, Italy, September 1-3, 2021.
• Formats : PDF

IIR document

Thermodynamic properties of HFO-1336mzz(E) (trans-1,1,1,4,4,4-hexafluoro-2-butene) at saturation conditions.

• Author(s) : TANAKA K., ISHIKAWA J., KONTOMARIS K. K.
• Publication date: 2017/10
• Languages : English
• Keywords : Vapour pressure, Critical pressure, Critical temperature, Thermodynamic property, Expérimentation, Critical density, Refrigerant
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 82
• Formats : PDF

IIR document

Viscosity and mass diffusion coefficient of ammonia/ethylammonium nitrate mixtures.

• Author(s) : RIVES R., SALAVERA D., CORONAS A.
• Publication date: 2021/09/01
• Languages : English
• Keywords : Viscosity, Mass, Ammonia, Nitrate, Mixture, Expérimentation, Absorption system, Diffusion, Modelling, Thermodynamic property
• Source: 6^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
• Formats : PDF

Development of a façade retrofit performance guide using climate based analysis including dynamic façade systems.

• Author(s) : SHEN H., CHAN Y-C., TZEMPELIKOS A.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Thermal property, Energy consumption, Energy, Building, Simulation, Performance, Wall, Shading, Lighting, Retrofitting, Thermal comfort, Air conditioning
• Source: 2014 Purdue Conferences. 3rd International High Performance Buildings Conference at Purdue.
• Formats : PDF

Frozen fruit in perfect condition for up to three years

A new technology allows, for the first time, to freeze fruit for three years while keeping its nutrients and properties at optimal levels.

• Publication date : 2014/05/13

Nanotechnoly: what’s new?

Nanotechnology - the manipulation of cell and atomic structure in materials no larger than a billionth of a metre in size - has recently been described by Frank O'Brien-Bernini, Vice President of Owens Corning Science & Technology Center, as...

• Publication date : 2006/07/26

ICCC2020 highlights: Benefits of IoT technologies for cold chain management

Internet of Things and cloud services are promising solutions for smart management and maintenance of the multiple cold rooms of supermarket chains.

• Publication date : 2020/10/22

Optical cavity cooling: a quantic leap for optical refrigeration?

A team of researchers at the Niels Bohr Institute have combined laser cooling technology with nano-physics, and have discovered a revolutionary way of bringing a semi-conductor nano-membrane’s temperature down to -269°C.

• Publication date : 2012/07/31

ICR 2019: an overview of current refrigeration research (part II)

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

Easy-to-make doped thermoelectric materials

Thermoelectric materials, which can convert electric voltage into various temperature differences, ranging from hot to cold, and vice-versa, have been used in refrigerators for over 20 years, but these applications are still small and highly...

• Publication date : 2012/03/15

Radiative cooling: protecting ice from melting under sunlight

Researchers have developed a biodegradable film made of cellulose acetate which, thanks to its radiative cooling properties, effectively protects ice subjected to solar radiation from melting, with possible...

• Publication date : 2022/03/30

Liquid crystal technology speeds up foodborne pathogen detection

Crystal Diagnostics has pioneered liquid-crystal technology that enables smart fast detection of bacteria and other dangerous pathogens such as E. coli in foodstuffs.

• Publication date : 2012/02/28

IIR Rankine Conference 2020: Which alternative working fluids for ORC systems?

HFOs (hydrofluoroolefins), HCFOs (hydrochlorofluoroolefins) and hydrocarbons were the main alternatives to HFC245fa presented during the IIR Rankine Conference 2020.

• Publication date : 2020/09/04
• Subjects: HFCs alternatives

Summary of two papers of the 9th International Conference on Compressors and Coolants (ICCC2017)

The IIR 9th International Conference on Compressors and Coolants (ICCC2017), which took place in Bratislava, Slovakia, in September 2017, addressed advances in compressors but also refrigerating technologies and alternative refrigerants, as...

• Publication date : 2018/01/10

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

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

DuPont develops a new foam expansion agent

FEA-1100, DuPont’s latest foam expansion agent, has an excellent environmental profile. It is characterized by zero ozone depletion potential and low global warming potential (9.4). DuPont indicates that FEA-1100 has a short atmospheric lifetime:...

• Publication date : 2011/06/08

IIR member news: Star Refrigeration chooses CO2 to cool down a beer warehouse

Star Refrigeration, collective member of the IIR, recently published a case study about a CO2 solution used to cool down a beer warehouse.

• Publication date : 2019/06/28

Chilled beam for health care rooms

The benefits of implementing active chilled beams include downsized ductwork/equipment, energy reductions of up to 50% in some cases, decreased maintenance, optimal comfort and indoor air quality (IAQ)

• Publication date : 2014/03/26

Cold storage conditions for fruits and vegetables

Practical recommendations for the cold storage of over 200 cultivars of fruits, vegetables and herbs (storage temperatures, relative humidity, storage time, controlled atmosphere...

• Last update : 2023/01/16
• Langues : French, English
• Themes : Fruit, Vegetables

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

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