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IIR document

Data driven assessment of a small scale evaporative condenser based on a combined artificial neural network with design of experiment approach.

• Author(s) : REICHERT H., DONNI R., SCHNEIDER P., ACUNHA I. C. Jr
• Publication date: 2020/07
• Languages :
• Keywords : Evaporative condenser, Testing, Artificial neural network, Performance, Design, Modelling
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 115
• Formats : PDF

IIR document

Evaporative cooling and Legionella: a risk which can be prevented by using good practices, 18th Informatory Note on refrigerating technologies.

• Publication date: 2006/02
• Languages :
• Keywords : Regulations, Contamination, Microbiology, Legionella, Cooling tower, Recommendation, Review, Evaporative system, Air conditioning, Evaporative condenser
• Source: IIF, Note Inf./IIR, Inf. Note/www.iifiir.org - n. 18
• Formats : PDF

Visualization of evaporatively cooled heat exchanger wetted fin area.

• Author(s) : POPLI S., LEE H., HWANG Y., et al.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Tube, Heat transfer, Air, Evaporative system, Evaporation, Flow rate, Heat exchanger, Water
• Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Falling film evaporation on a thermal spray metal coated vertical corrugated plate conduits.

• Author(s) : EBANESAR J. R., MANI A.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Corrugated surface, Heat transfer, Coating (materials), Simulation, Optimization, Falling film, Evaporation
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Falling-film evaporation over horizontal rectangular tubes: Part I - Experimental results.

• Author(s) : BUSTAMANTE J. G., GARIMELLA S., HUGHES M.
• Publication date: 2020/11
• Languages : English
• Keywords : Falling film, Evaporation, Tube, Microchannel, Heat exchanger, Water, Reynolds, Heat transfer coefficient, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 119
• Formats : PDF

Evaporation from a free liquid surface.

• Author(s) : LOTFI A., VRABEC J., FISCHER J.
• Publication date: 2014/06
• Languages : English
• Keywords : Liquid, Vacuum, Steady state, Surface, Model, Evaporation
• Source: International Journal of Heat and Mass Transfer - vol. 73

IIR document

Test rig for experimental evaluation of spray evaporation heat transfer coefficients.

• Author(s) : PARDIÑAS A. A., FERNÁNDEZ-SEARA J., DIZ R.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Spray, Pool boiling, Heat transfer coefficient, Tube, Evaporation, Testing, Condensation, Heat exchanger
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• 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

Ammonia evaporation in a mixed configuration chevron plate heat exchanger with and without miscible oil.

• Author(s) : KHAN T. S., KHAN M. S., CHYU M. C., et al.
• Publication date: 2015/03
• Languages : English
• Keywords : Heat transfer, Ammonia, Miscibility, Oil, Evaporation, Heat exchanger, Plate exchanger, Pressure drop
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 51
• Formats : PDF

IIR document

Evaporation heat transfer and pressure drop of R32 in a horizontal multiport tube with microfins.

• Author(s) : JIGE D., INOUE N., KOYAMA S.
• Publication date: 2017/04/23
• Languages : English
• Keywords : Microfin tube, Heat transfer, R32, Expérimentation, Evaporation, Pressure drop
• Source: 5^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
• Formats : PDF

IIR document

Falling film evaporation heat transfer of ammonia / oil mixtures on a horizontal smooth tube.

• Author(s) : AKADA I., NISHIDA K., INOUE N.
• Publication date: 2022/06/13
• Languages : English
• Keywords : Falling film, Heat transfer, Ammonia, Horizontal tube, Evaporation, Expérimentation, Flow, Oil, Mixture
• Source: 15^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15^th 2022.
• Formats : PDF

IIR document

Condensation and evaporation of pure refrigerant flowing in small diameter micro-fin tubes.

• Author(s) : BASHAR M. K., NAKAMURA K., KARIYA K., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : R134a, R1234yf, Heat transfer coefficient, Microfin tube, Flux, Expérimentation, Evaporation, Refrigerant, Condensation
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Falling film evaporation in a triangular tube bundle under the influence of cross vapor stream.

• Author(s) : ZHAO C. Y., JI W. T., JIN P. H., LI A. G., FAN J. F., YOSHIOKA S., TAO W. Q.
• Publication date: 2020/04
• Languages : English
• Keywords : Falling film, Evaporation, R123, HCFC, Tube, Boiling, Heat transfer coefficient, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 112
• Formats : PDF

IIR document

Unsteady evaporation of water from wire mesh structures at sub-atmospheric pressures.

• Author(s) : VOLMER R., SCHNABEL L.
• Publication date: 2021/09/01
• Languages : English
• Keywords : Adsorption system, Heat transfer, Evaporation, Modelling, Expérimentation, Heat exchanger
• Source: 6^th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
• Formats : PDF

IIR document

Spray evaporation of R1234ze(E)/POE-68 refrigerant-oil mixture on enhanced tube bundles.

• Author(s) : EBANESAR J. R., ROTHE J., CREMASCHI L.
• Publication date: 2024/03
• Languages : English
• Keywords : Lubricant, R1234ze(E), Tube bundle, Evaporation, Heat transfer, Expérimentation, Spray, Thermodynamic property, Polyolester
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 159
• Formats : PDF

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

Briefs: Evaporating tiles to cool rooms

UK Loughborough University's Zephyr project "Ceiling tiles" was finalist in the Financial Times Climate Change Challenge. The tiles draw up heat from a room which passes through a moist wick surface in the ceiling tile, achieving cooling lowering...

• Publication date : 2009/08/13

Liquid nitrogen for French cuisine

The system uses the natural pressure of nitrogen during evaporation according to a vertical discharge principle.

• Publication date : 2015/03/12

Evaporative cooling without adding humidity

Scientists at the University of Harvard have designed a prototype evaporative cooling system called Cold-SNAP that effectively cools air at low cost for both dry and humid climates.

• Publication date : 2020/05/26
• Subjects: Developing country, Technology

Evaporative cooling experimentations in urban areas

Various researches are currently being conducted to study the impact of evaporative cooling in urban areas.

• Publication date : 2019/10/30
• Subjects: General information, Environment

Flower pot as natural bio air conditioning system.

Created by Zurich-based independent designer Thibault Faverie, Cold Pot is a terracotta pot that gradually lowers the air temperature around it through a natural evaporation process.

• Publication date : 2014/02/20

How to keep dairy cows cool in summer heat?

Remarkably, a Japanese underwear maker found an answer to this question.

• Publication date : 2017/07/17

Evaporative cooling: continuation of the Cold-Snap project at Harvard University

Tests show that Cold-Snap evaporative cooling technology would be effective in humid climates, while limiting water consumption.

• Publication date : 2022/09/28

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

Efficient cooling methods to reduce heat stress in pigs

Microclimate parameters such as air temperature and humidity are important indicators of animal welfare. Besides, heat stress is more detrimental to productivity in the swine...

• Publication date : 2020/10/22
• Subjects: Technology

An ejector refrigeration system optimised for sub-zero temperatures on fishing vessels

Large amounts of diesel fuel are used to power fishing vessels engines and on-board refrigeration systems. In a recent theoretical study, an energy-efficient sub-zero refrigeration system proposed based on a...

• Publication date : 2021/05/31
• Subjects: Technology

Cryogenics 2021 highlights: applications of liquid nitrogen

Cryopreservation of biological materials to favour biodiversity and cooling of superconducting cables to allow transmission of electrical energy with zero resistance are key applications of liquid...

• Publication date : 2022/01/28

How to evaluate the refrigerating capacity of compressors?

Most compressor manufacturers express the capacity of their compressors using the "nominal capacity" of the motor, expressed in HP (1 Horse Power = 0.735 kW) which does not give precise information on the refrigerating capacity of the compressor....

• Publication date : 2007/05/04

Marine refrigeration

The use of natural refrigerants is gradually spreading. Here are two examples of their use in the marine sector: - Environmentally-friendly fish transport American Freedom is one of the world's largest refrigerated ships and can hold up to...

• Publication date : 2007/11/20

Reducing the environmental impact of ultra-low temperature refrigeration systems

Ultra-low temperature (ULT) refrigeration systems often use very high-GWP HFCs. Yet, ULT systems are excluded from the scope of the regulations aimed at phasing-down HFCs. An IJR paper reviews the most promising...

• Publication date : 2020/04/05
• Subjects: Environment, HFCs alternatives

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

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

Ohrid 2015: Ammonia and CO2 refrigeration technologies at the forefront

In light of the intense debate on the F-Gas regulation, its implementation worldwide, as well as proposed amendments to the Montreal Protocol, the conference provided the ideal forum for the exchange of knowledge on ammonia and CO2 technologies.

• Publication date : 2015/04/21

Past events: The IIR around the world, August and September 2024

A look back at the IIR’s latest events during conferences (Gustav Lorentzen, Thermag, Compressors) and during sponsored vents (CHPC).

• Publication date : 2024/10/07

Supercooling and superchilling: A solution to increased shelf life and reduced food waste?

If these technologies were combined with perfusion chilling for meat and fish, then additional benefits such as rapid cooling, low weight loss and novel products could result.

• Publication date : 2015/10/27

IIR member news: Cemafroid, IRSTEA and AFCE

A new study on the containment of refrigerants has been launched with the aim of identifying and promoting best practices in this regard.

• Publication date : 2015/10/07

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

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)

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