Veille sectorielle

Un système d'évaporateur à expansion directe à faible charge configuré pour utiliser moins d'ammoniac

Aux Etats-Unis, une usine de transformation de viande exploite un entrepôt frigorifique utilisant seulement 1 kg d'ammoniac par kW.

• Date de publication : 17/05/2018

Une méthode innovante de détection du givre

La formation de givre sur les serpentins de l’évaporateur d’une installation frigorifique peut considérablement réduire son efficacité. Une nouvelle méthode de détection indirecte qui permettrait d’éviter l’accumulation de givre a été développée.

• Date de publication : 06/02/2020

ICR2011 highlights: cooling particle detectors

Cooling systems for particle detectors attracted interest at the IIR’s Congress in Prague in August 2011. These highly specific applications have very strict requirements compared with standard cooling systems: refrigerants should be resistant to...

• Date de publication : 21/02/2012

Micro-refrigeration

Future computer chips will probablly generate 10 times more heat than today's microprocessors and will require new types of cooling systems. Currently, computers are usually cooled thanks to fans and small finned devices called heat sinks, but the...

• Date de publication : 12/08/2008

Micro-Innovation

Mechanical engineers at Purdue University have created a miniature device that aims to replace conventional evaporators. Cited as a "long-term solution" in technological advances, the use of existing technical know-how for the refrigeration loop...

• Date de publication : 19/07/2005

Solar cooling: Low-cost solar vaccine refrigerator

About 2 million people around the world die each year of diseases preventable by widely used vaccines. In Africa and parts of Asia, over half of all vaccines that require refrigeration spoil before they can be administered. Millions of lives and...

• Date de publication : 04/02/2011

Briefs: AHR Exposition Award

This year the winner of AHR Exposition Award was Delphi Corp.'s innovative micro channel evaporator, capable of performing both cooling and heating functions for residential or commercial settings. It is highly efficient as it uses a compact...

• Date de publication : 07/03/2010

Briefs: First MAC system using an ejector

Denso Corporation has developed the world's first passenger mobile air-conditioning system that uses ejector technology. The ejector, which is a small refrigerant injector, was installed on the new Prius introduced by Toyota in May 2009. According...

• Date de publication : 13/08/2009

New solar-cooling technology for cooling-freezing

Refrigeration is often based on compressor technology which consumes electricity. A recently developed system making it possible to achieve relatively low temperatures solely using solar energy has been designed by PROMES, a laboratory working...

• Date de publication : 04/05/2007

Briefs: Embraco's new miniature compressor

In Newsletter No. 35, we reported on research, especially at Purdue University, on the design of miniature evaporators and compressors. Still in the testing phase, but already considered a technological innovation, Embraco's new miniature...

• Date de publication : 18/05/2009

Un système frigorifique à éjecteur optimisé pour des températures négatives sur les navires de pêche

De grandes quantités de carburant diesel sont utilisées pour alimenter les moteurs des navires de pêche et les systèmes frigorifiques à bord. Une étude théorique récente a proposé un système frigorifique pour...

• Date de publication : 31/05/2021
• Sujets : Technologie

ICR 2019: tour d'horizon des thèmes de recherche actuels dans le froid (partie III)

Le stockage d’énergie, le conditionnement d’air à déshydratant, les pompes à chaleur haute température ou encore les technologies à éjecteur ont constitué quelques-uns des thèmes dominants du dernier congrès de l’IIF. Suite de la synthèse des...

• Date de publication : 30/10/2019

CO2 applications: First hospital catering facility refrigeration system to run with CO2 in the UK

A CO2 unit supplied by Green & Cool has been installed and commissioned by CCS Refrigeration, through Aggora on behalf of Medirest to provide for the on-site catering requirements of patients, restaurant and hospital staff at the Homerton...

• Date de publication : 07/02/2011

Chillers: efficiency takes off

Chillers are key refrigerating systems since, according to the Department of Energy, in the US, they account for about 13% of the power consumed by the nation's buildings and 9% of the overall demand for electric power. Examples below illustrate...

• Date de publication : 25/10/2008

Brief: System to go!

Danfoss has been awarded its 4th consecutive Refrigeration Innovation Award for a completely self-contained refrigeration system. The Interchangeable Cooling Engine (I.C.E.) was designed for vending machine applications - it is already compliant...

• Date de publication : 05/05/2006

Briefs: Cool logistics

Carrier Transicold has launched NaturaLINE, a range of refrigerated-container technology using natural refrigerants claimed to be the first in the world. Working with Hapag-Lloyd, a Hamburg-based shipping company, Carrier has been testing the...

• Date de publication : 11/02/2011

Briefs: A comeback for Einstein’s fridge?

Scientists at Oxford University have rebuilt one of Einstein's early inventions in an attempt to develop an environmentally friendly refrigerator that runs without electricity. They have built a prototype of a fridge patented in 1930 by Einstein...

• Date de publication : 25/10/2008

Cool Carrier

At the end of October of this year Carrier Transicold introduced Deltek㤠hybrid diesel electric technology to the North American refrigerated transport industry offering more reliable, easier maintained transport refrigeration systems at the...

• Date de publication : 24/01/2006

Cool Carrier

At the end of October of this year Carrier Transicold introduced Deltek hybrid diesel electric technology to the North American refrigerated transport industry offering more reliable, easier maintained transport refrigeration systems at the lowest...

• Date de publication : 22/12/2005

H2 update: Linde

Linde recently opened the world's first hydrogen filling station for fuel cell passenger ships in Hamburg. The Zemship filling station provides fill-ups of hydrogen gas for this "zero emissions ship". The first passenger ship for 100 people to be...

• Date de publication : 25/02/2009

Heat exhangers: what's new?

Nanotechnology: the future of heat exchangers? The US Department of Energy has awarded contracts to improve energy efficiency. One such contract, awarded to TIAX, a technology development company, through the Small Business Innovation...

• Date de publication : 05/05/2006

High efficiency, low carbon supermarket refrigeration

This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A new but simple high efficiency refrigeration system design suitable for use in supermarkets has been developed based on standard components so that...

• Date de publication : 24/11/2004

PCMs and ice slurries: PCMs: two recent applications

Phase-change materials (PCMs) can provide thermal storage which means that they can absorb thermal energy when they solidify and release it when they melt. This can be very useful to dampen temperature swings. PCMs are usually water-based and are...

• Date de publication : 12/02/2007

Development and evaluation of a reversible CO2 residential air conditioning system compared to a state-of-the art R410a unit

This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A reversible CO2 prototype RAC split unit system was designed, built and installed in two calorimetric test chambers. The unit is based on the Lorentzen Cycle...

• Date de publication : 24/11/2004

Charge minimization in hydrocarbon systems

This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). It presents the results of the project to minimize charge in a R290 system that has 1-1.5 kW refrigeration capacity. Currently, there are many guidelines...

• Date de publication : 24/11/2004