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Chapter 6. Precooling
IIR document
Numerical investigation on the natural convection effects in the melting process of PCM in a finned container using lattice Boltzmann method.
Simulation des échanges aérauliques et thermiques d'un camion frigorifique.
Simulation of refrigerated truck aeraulic and thermal exchanges.
Investigation of rotary compressor heat dissipation model.
A semi-empirical model for predicting frost accretion on hydrophilic and hydrophobic surfaces.
Étude numérique du développement des instabilités électro-thermo-convectives et thermocapillaires dans une couche de liquide diélectrique soumise à une injection unipolaire.
Numerical study of the electro-thermo-convective and thermocapillary instabilities development in a dielectric liquid layer subject to an unipolar injection.
Optimal thermal design of a horizontal fin heat sink with a modified-opening model mounted on an LED module.
Application of smart models for prediction of the frost layer thickness on vertical cryogenic surfaces under natural convection.
Experimental study of frost formation on straight cylindrical fins of cryogenic temperature under natural convection conditions.
Conjugate heat transfer analysis using a simplified household refrigerator model.
CFD study of airflow and temperature heterogeneity within a pallet of heat generating products: application to cheese.
Recommended by the IIR / IIR document
Melting of PCM: correlations for natural convection onset.
An Experimental Investigation of Increasing the Thermal Efficiency of a Finned Tube Heat Exchanger by Using the Chimney Effect.
Predictions on frost growth over a flat plate using surface characteristics: Machine learning methods.
Étude tridimensionnelle de la convection naturelle et de la génération d'entropie dans un capteur solaire équipé de partitions.
Tridimensional study of the natural convection and the entropy generation in a solar collector equipped with partitions.
Refrigeration sector monitoring
11 results
Low-cost cold storage in Kenya using evaporative cooling
A team of researchers from the Massachusetts Institute of Technology (MIT) and the University of Nairobi are designing affordable off-grid cold storage units for perishable crops in Kenya, using evaporative...
Dehydrofreezing of apples
A recent study focuses on a freezing process for partially dehydrated apples.
Maturity level of alternative AC technologies
In a recent review article, the authors assessed air conditioning technologies in Europe according to their Technology Readiness Level (TRL).
Cool like a butterfly wing
New study demonstrates that butterfly wings contain a network of living cells with specific thermodynamic and thermoregulatory properties. Butterfly wings cool down as a result of low solar absorption combined with efficient radiative heat...
Experimental vaccination for Ebola in the Democratic Republic of the Congo
To halt the spread of an outbreak of the Ebola virus in Democratic Republic of the Congo, health workers began an immunisation campaign using vaccines which have to be stored at extremely low temperatures.
Isochoric freezing could cut down energy use in the global food cold chain
Compared to conventional isobaric freezing, isochoric freezing could significantly improve the quality of frozen food and generate substantial energy savings.
Extreme heat reduces productivity in global economies
In a recent report, a non-profit organisation examined how global warming is affecting the economy and labour productivity in 12 major urban areas worldwide.
ISS ammonia leak scare
Ammonia is typically used as a coolant in spaceflight systems.
Data centers: cooling technologies and trends
Over the next five to ten years, the use of traditional computer room air-conditioning units is expected to drop dramatically as data centres opt for a combination of free cooling, liquid cooling and chilled-water cooling.
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...
UK frozen food in 2020: market growth and sustainability
A report by the British Frozen Food Federation (BFFF) reveals a significant growth rate of the frozen food sector in 2020. The report also suggests that the industry is addressing environmental issues such as...
IIR news
1 result
The First Students and Researchers Network!
During the Prague congress, a great turn-out of 70 young researchers of over 20 different nationalities met face to face with 30 leading experts in various fields of refrigeration.
Encyclopedia of Refrigeration
7 results
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...
Ice cream manufacturing, environmental impact and market data
From a physico-chemical point of view, ice cream is a complex, frozen multiphase mixture. The manufacturing process includes several stages of freezing which are described in this...
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...
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...
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...
Global HFC emissions from the refrigeration sector
This table shows HFC emissions from the refrigeration sector – including air conditioning – in million tonnes of CO2 equivalent for about 40 countries that are signatories...
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...
