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IIR document
Investigation on characteristics of thin films made from two kinds of silane-couplers to control adhesion force of ice to solid surfaces.
Experimental study of the effects of fin surface characteristics on defrosting behavior.
Measurements of correct ice adhesion forces to metal test plates in nano-scale by using SPM.
Effect of the surface texture on the heat transfer coefficient in nucleate boiling of aqueous lithium bromide solution at low heat fluxes.
State-of-the art of frost deposition on flat surfaces.
Investigation on controlling ice adhesion force to solid surface by using thin film made from silane-coupler.
THE EFFECT OF COLD WALL SURFACE CONDITIONS ON FROST DEPOSIT PROCESSES.
Prediction of thermal contact resistance between polished surfaces.
Effect of surface treatments on the frosting/defrosting behavior of a fin-tube heat exchanger.
The effect of hydrophilicity on condensation over various types of fin-and-tube heat exchangers.
How to create an efficient surface for nucleate boiling?
A STUDY OF HORIZONTAL TUBE SPRAY FILM EVAPORATION AND ITS ENHANCEMENT.
Long-term wetting and corrosion characteristics of hot water treated aluminum and copper fin stocks.
Heat conduction across irregular and fractal-like surfaces.
NUCLEATE POOL BOILING DATA ON R22.
Refrigeration sector monitoring
22 results
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...
Urban cooling strategies
A report provides practical guidance to optimise development projects to moderate urban microclimates in major urban centres in Australia.
Pulse technology defrosts surfaces in seconds
A team of Japanese and American researchers is developing with a new, fast and efficient technology to defrost surfaces.
Frost mitigation methods for heat pumps and refrigeration systems
Frost growth is an important issue since defrosting can represent up to 30% of the total energy consumption of refrigerated display cabinets. Review of the various frost mitigation technologies and latest...
Solar heating and cooling: key trends and challenges
In 2020, the solar thermal energy yield amounted to 407 TWh, which correlates to savings of 43.8 million tons of oil and 141.3 million tons of CO2. Although still only a niche market, solar cooling...
Frost detection and defrosting methods: latest advances
A recent Purdue conference paper presents the state of the art regarding methods for retarding the onset of frosting, frost detection techniques and defrosting strategies, including those based on artificial...
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...
Commercial refrigeration figures and trends
Growing steadily for several years, the global commercial refrigeration market is characterised by some key trends, including the energy efficiency and smart stores
COVID-19 news in the HVAC&R sector
The IIR reviews the available information on the possible impact of air conditioning on the spread of COVID-19 and the recommendations for the operation and maintenance of HVAC systems. Furthermore, several...
Liquid nitrogen spray to clean spacesuits
Researchers from Washington State University developed a liquid nitrogen spray to remove moon dust from a space suit, potentially solving what is a significant challenge for future...
Green roofs can reduce cooling demand in warm climate zones
The impact of green roofs on building energy performance was assessed in 15 climate zones. In most regions, the reduction in energy demand for cooling was greater than for...
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.
First liquefied hydrogen carrier launched in Japan
In line with its commitment to pave the way for the first "Hydrogen Society", Japan intends to use this carrier to transport hydrogen from Australia, where it is produced from lignite.
Juice mission: discovering the icy moons of Jupiter
ESA's Jupiter Icy Moons Explorer (Juice) lifted off on an Ariane 5 rocket on 14 April 2023. This successful launch marks the beginning of an ambitious journey to discover the secrets...
Sustainable air-conditioning solutions in EU buildings
In a recent briefing note, the European Environment Agency (EEA) discusses sustainable solutions to the growing need for cooling in Europe.
IIR news
1 result
Technical visit to the Tokyo fish market (in French)
During the ICCC conference last June, participants were offered technical visits, including a tour of the Tokyo Fish Market. Alain Le Bail, President of the IIR Commission C2, chose to visit it. Discover his...
Encyclopedia of Refrigeration
6 results
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...
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...
Environmental impact of the ice cream industry
This summary document describes the environmental impact of ice cream manufacturing, which is mainly due to the energy consumption and refrigerants used.
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...
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...
