Search results

IIR document

Equilibrium vapor pressure properties for absorbent and adsorbent materials.

• Author(s) : YANG Z., GLUESENKAMP K. R., FRAZZICA A.
• Publication date: 2021/04
• Languages : English
• Keywords : Material, Absorbent, Adsorbent, Vapour pressure, Equilibrium, Waste heat, Heat pump, Thermodynamic property, Review
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 124
• Formats : PDF

IIR document

Analysis of [hmim][PF6] and [hmim][Tf2N] ionic liquids as absorbents for an absorption refrigeration system.

• Author(s) : KIM S., KOHL P. A.
• Publication date: 2014/12
• Languages : English
• Keywords : R134a, Ionic liquid, Absorption system, Absorbent, Performance, Equation of state, Pressure drop
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 48
• Formats : PDF

Recommended by the IIR

Absorption Refrigeration Systems Based on Ammonia as Refrigerant Using Different Absorbents: Review and Applications

• Author(s) : LIMA A. A. S., LEITE G. d. N. P., OCHOA A. A. V., DA COSTA J. A. P., DOS SANTOS C.A.C., MICHIMA P.S.A, CALDAS A. M. A.
• Publication date: 2021/01
• Languages : English
• Keywords : Absorption system, Absorbent, Ammonia-water, Ammonia, Review, Heat transfer, Mass transfer, Thermodynamic property, Prototype, Lithium bromide, Chiller
• Source: Energies - 14 - 1
• Formats : PDF

IIR document

CO2 absorption/desorption performance enhancement by nanoabsorbents.

• Author(s) : KANG Y. T.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Absorption, Absorbent, Testing, Desorption, CO2
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

Performance of a vapour absorption refrigeration system operating with ionic liquid-ammonia combination with water as cosolvent.

• Author(s) : SWARNKAR S. K., MURTHY S. S., GARDAS R. L., et al.
• Publication date: 2014/11
• Languages : English
• Keywords : Ionic liquid, Vapour, Ammonia, Absorption, Absorbent, Performance, Water
• Source: Applied Thermal Engineering - vol. 72 - n. 2

IIR document

Non-absorbable gasses motor-less purge system for absorption heat transformers.

• Author(s) : EVRON Y., GOMMED K., GROSSMAN G.
• Publication date: 2020/12
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 120
• Formats : PDF

IIR document

Visual experimental research on the effect of nozzle orifice structure on r124-DMAC absorption process in a vertical bubble tube.

• Author(s) : JIANG M., XU S., WU X., et al.
• Publication date: 2016/08
• Languages : English
• Keywords : Structure, Bubble, Nozzle, Vertical tube, Absorbent, R124, Orifice, Expérimentation, DMF, DMA
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 68
• Formats : PDF

IIR document

Experimental investigation of an absorption refrigerator working with ionic liquid and ethanol.

• Author(s) : MEYER T., WINKER M., BERGEMANN S., et al.
• Publication date: 2017/04/23
• Languages : English
• Keywords : Refrigerating system, Ionic liquid, Absorption, Absorbent, Expérimentation, Ethanol, Energy efficiency, Freezing
• Source: 5^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
• Formats : PDF

Recommended by the IIR / IIR document

Natural working fluids for absorption refrigeration.

• Author(s) : KERLEAUX M., RODIER L., ANDANSON J-M., DEQUIDT A., COULIER Y.
• Publication date: 2022/06/13
• Languages : English
• Keywords : Modelling, Thermodynamic property, Expérimentation, Simulation, Working fluid, Absorption system, CO2, Absorbent
• Source: 15^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15^th 2022.
• Formats : PDF

Selection of optimal mixed liquid desiccants and performance analysis of the liquid desiccant cooling system.

• Author(s) : ZHAO X., LI X., ZHANG X.
• Publication date: 2016/02/05
• Languages : English
• Keywords : Dehumidification, Liquid, Absorbent, Desiccant system, Prediction, Performance, Energy saving, Air conditioning
• Source: Applied Thermal Engineering - vol. 94

Influence of microstructured surface modifications on the wettability of absorber tubes.

• Author(s) : TOMFORDE C., LUKE A.
• Publication date: 2014/03/02
• Languages : English
• Keywords : Tube, Surface, Humidity, Expérimentation, Absorber
• Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
• Formats : PDF

Entropy parameters for falling film absorber optimization.

• Author(s) : GIANNETTI N., ROCCHETTI A., LUBIS A., et al.
• Publication date: 2016/01/25
• Languages : English
• Keywords : Horizontal tube, Simulation, Optimization, Falling film, Entropy, Irreversibility, Absorber
• Source: Applied Thermal Engineering - vol. 93

IIR document

A simulation study of n-butane absorption refrigeration system using commercial hydrocarbons as absorbents.

• Author(s) : ARAFIA M., SOLIMAN A., OSSAMA A.
• Publication date: 2020/04
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 112
• Formats : PDF

Temperature-responsive material applied to high-performance absorbers.

• Author(s) : DANG C., CHEN Z., YU H., et al.
• Publication date: 2017/08/07
• Languages : English
• Keywords : Temperature, Absorption, Surface, Simulation, Performance, Droplet, Expérimentation, Absorber
• Source: International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.

Investigation of atomizing-spray adiabatic absorber.

• Author(s) : OKAMOTO H., DANG C., HIHARA E.
• Publication date: 2014/03/02
• Languages : English
• Keywords : Water heater, Spray, Absorption, Heat pump, Performance, Model, Energy efficiency, Absorber
• Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
• Formats : PDF

Latest figures on HFC impact on climate change

EU reports that hydrofluorocarbons (HFCs) emissions from refrigeration and air conditioning (RAC) have decreased for the fourth consecutive year since 2014. On a global scale, the impact of HFCs on climate...

• Publication date : 2020/09/04
• Subjects: Environment

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

Liquid desiccant AC system cuts ice rink energy bill

Thanks to a liquid-desiccant air-conditioning system and the use of renewable energy sources, Pines Ice Arena in Pembroke, Florida, claims to have achieved 55% electricity savings, as well as a 35% reduction in natural gas consumption and a...

• Publication date : 2011/08/05

Radiative cooling: smart materials to switch from heating to cooling

Researchers have developed a radiative thermal management device, composed of several layers of reflective/absorbent materials, capable of switching between heating and cooling...

• Publication date : 2022/09/28
• Subjects: Technology

Novel desiccant materials for more energy-efficient AC systems

Teams of researchers at MIT and at Texas A&M University have developed novel desiccant materials that could lead to more energy-efficient and economical room air conditioners and...

• Publication date : 2021/04/28
• Subjects: Technology

Refrigeration innovations for the avocado market

The booming global avocado market calls for increasing standards of quality. Refrigeration technologies offer cutting-edge solutions for fruit ripening and seed preservation for future crops.

• Publication date : 2020/10/22

Passive cooling by combining evaporation, radiation and insulation

ICER, a new passive cooling technique, can extend food shelf life by 40% in humid climates and 200% in dry climates with low water-refilling frequences. 

• Publication date : 2022/10/27

Novel catalysts to address overheating in hypersonic aircraft

Researchers at Australia's RMIT University have developed 3D-printed catalysts to address the challenge of overheating in hypersonic aircraft and possibly other industrial...

• Publication date : 2021/10/22
• Subjects: Technology

Radiative cooling coatings that can adapt to the seasons

A novel material can be used as a coating on building’s rooftops or windows to provide radiative cooling in the summer without overcooling in the colder months. 

• Publication date : 2022/01/28
• Subjects: Technology

A Listeria monocytogenes biosensor based on gold nanoparticles

The innovation is an inexpensive, portable, disposable enzyme-linked immunoabsorbent assay-based biosensing strip that detects L. monocytogenes theough gold particle-modified screen-printed carbon electrodes.

• Publication date : 2013/05/16

Cool IT: a new use for CO2

Carbon dioxide offers a new optimum cooling medium for IT facilities. Electrically benign, and therefore non-hazardous to servers and cabling, it is seven times more efficient at cooling than water: CO2 permits reduced volume flows and smaller...

• Publication date : 2006/05/05

Berry efficient chilling

The storage and transport of berries has come a long way since they were transported by an iced horse cart in 1843. Today, growers in the Pajaro Valley from the Berry Bowl label are breaking in a brand new USD 2 million state-of-the-art flash...

• Publication date : 2005/09/30

Radiative Cooling in the Sub-Saharan Desert

A new way of lowering temperatures without using electricity has recently been developed. Iterrae, a French company, has discovered a way of using radiative cooling, a phenomenon that takes place at night, when the Earth is cooled by the 0 K...

• Publication date : 2007/08/05

Next generation of working pairs in absorption heat pumps

The history and latest developments in working pairs for absorption heat pumps were discussed in a recent review article.

• Publication date : 2023/01/26
• Subjects: Technology

A laser beam which cools liquids

The first laser refrigeration process was demonstrated in vacuum conditions in 1995. Twenty years later, a team from University of Washington explains in a study, published in the Proceedings of the National Academy of Sciences, how a laser can...

• Publication date : 2016/05/17

New IIR Informatory Note on evaporative cooling

The latest IIR Informatory Note highlights that evaporative cooling is an energy-efficient technology that has many applications in air conditioning but also in short-term food storage. 

• Publication date : 2023/05/27

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 : English, French
• Themes : Caloric cooling (magnetocaloric, electrocaloric, elastocaloric and barocaloric cooling)

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