Main menu
Search results
Search in FRIDOC
13 results
IIR document
Control optimization for cold-room (walk-in) refrigeration units.
Thermal comfort analysis in a room with displacement ventilation system coupled with passive chilled beams.
Rock-soil thermal response test and application of ground-source heat pump in severe cold zone.
[In Chinese. / En chinois.]
Experimental study on the frost of the cold-trap in vacuum freeze-drying machines.
Possibilities and pitfalls in carbon dioxide refrigeration.
Performance of a cold transport system utilizing evaporation-freezing phenomena with a cold trap.
DEVELOPMENT OF THE COLD GENERATION METHODS WITHOUT MOVABLE PARTS AT ALL.
Research on experiment of cold air distribution in the room with air conditioning.
Experimental study on the thermal uniformity of a room with an active chilled beam system.
Consideration for minimising draught discomfort in rooms with active chilled beams.
Solar cooling: effect of heat stress on a room based on the performance of absorption units.
HEAT TRANSFER COEFFICIENT DURING TWO-PHASE FLOW BOILING OF R134A.
Refrigerant flow boiling heat transfer in parallel microchannels as a function of local vapour quality.
Refrigeration sector monitoring
29 results
Quantum refrigerators: research is making progress
Two recent studies illustrate the progress of research on quantum refrigerators. Cooling applications for microelectronic compounds could be considered.
German researchers approach absolute zero
Physicists at the University of Bremen, Germany have produced the lowest temperature ever recorded, at 38 picoKelvin, which is 38 trillionths of a degree above absolute zero.
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.
ICCC2016 highlights: ageing of refrigerated truck insulation
This summary refers to a paper presented during the IIR International Cold Chain Conference (ICCC2016) which took place in New Zealand. This paper can be downloaded from Fridoc database by using the direct link provided at the end of the article.
France: containment of refrigerating data plants
French Environment and Energy Management Agency (ADEME) recently published a study conducted by Cemafroid and IRSTEA on the containment of refrigerating plants.
Revising A3 refrigerants charge limits to promote wider application
A recent IJR paper examines the validity and form of charge limits for “highly flammable” A3 refrigerants, which constitute low-GWP alternatives to HFCs. Authors propose to eliminate upper charge limits for...
Solar-powered modular facade capable of cooling and heating a building
In Germany, researchers are testing a modular solar-powered facade that includes a mini heat pump for heating and cooling, and a decentralised ventilation unit with heat...
Overview of data center cooling technologies
The very huge growth in Internet traffic requires the continued development of new energy-efficient data center cooling technologies, based primarily on liquid...
Humidity greatly impacts emissions from air conditioning
The environmental impact of controlling humidity in air conditioning may be larger than the impact of reducing temperatures, according to research from the National Renewable Energy...
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...
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.
Caloric cooling: state of the art and perspectives
A recent IJR article reviews the most significant results obtained over the past ten years in the field of magnetocaloric cooling and more recently in the field of electrocaloric, elastocaloric and barocaloric cooling. It also presents the...
A low-GWP cooling system for the Eiffel Tower
The ageing R407C cooling system in the tower’s west pillar has been replaced with an energy efficient system using low GWP R1234ze(E).
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.
ICR2019: overview of current refrigeration research topics (part III)
Energy storage, desiccant air conditioning, high-temperature heat pumps and ejector technologies were some of the salient topics of the latest IIR Congress. Continuation of the synthesis of key presentations of ICR2019.
IIR news
4 results
Join our second Webinar on Walk-In Cold Rooms on June 11!
Book your seat! Register to the second webinar in our '"Cool Insights" series highlighting the use of walk-in cold rooms for precooling and storage of fresh produce in the Global South.
SophiA project: HKA Lab test progress
SophiA HKA (Karlsruhe University of Applied Sciences) Lab test is intended to provide a better understanding of the cooling system in in different climate zones.
Interview: Director General of the IIR gives an overview of the trends of the refrigeration sector
In the 2018-2019 international special issue of the Industria & Formazione magazine, Director General of the International Institute of Refrigeration, Didier Coulomb, gives an overview of the impact of the refrigeration sector on climate...
Heat pumps, the central theme of the recent IIR Congress
An overview of the research carried out in the field of heat pumps, with the aim of achieving greater flexibility and increased energy efficiency, in particular through to the use of thermal energy...
Encyclopedia of Refrigeration
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...
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...
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...
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...
