Les effets de la pollution sur la santé humaine et sur l'environnement sont incalculables.
On sait cependant que si l'on ne réussit pas bientôt à freiner le réchauffement climatique, les dommages à l'environnement vont empirer au point d’être irréversibles. La santé de nos enfants, celle de leurs enfants et de leurs petits-enfants pourrait souffrir lourdement de notre immobilisme.
Alors que nos élus tardent à s'entendre et à prendre des décisions concrètes, nous devons agir. C'est exactement ce que fait l'entreprise Groupe CSC.
Grâce au Groupe CSC, le tournant vert est déjà amorcé dans l'industrie. Les réfrigérants synthétiques, qui en dommages la couche d'ozone, sont graduellement remplacés par des produits qui ne dégagent pas de gaz à effet de serre.
Groupe CSC a innové dans ce domaine. En novembre 2009, cette compagnie a installé un système de réfrigération fonctionnant au gaz « co2 » à 100% dans le supermarché IGA des Sources, à Québec. La réfrigération ET la récupération de chaleur se font en utilisant du « dioxyde de carbone ». Groupe CSC a par le fait même confondu les experts, qui croyaient impossible la récupération la chaleur en employant du « co2 ». Le « dioxyde de carbone» employé dans « l'Eco2-System »de Groupe CSC permet également de maintenir des températures stables et de dégivrer par gaz chaud.
Groupe CSC a causé toute une onde de choc dans l'industrie de la réfrigération avec l’« Eco2-System ».Cette technologie brevetée est unique car le « dioxyde de carbone »est un gaz que l'on retrouve à l'état naturel qui, contrairement à l'ammoniac est inoffensif pour la santé et l'environnement. Le « dioxyde de carbone »est éco énergétique et, détail non négligeable, il est peu coûteux.
Que ce soit dans le secteur commercial, dans l'industriel, l'agro-alimentaire, ou même pharmaceutique, l' »Eco2-System »de Groupe CSC représente la seule véritable solution aux problèmes environnementaux posés par les systèmes de réfrigération fonctionnant aux gaz synthétiques.
Groupe CSC est au cœur de l’innovation dans le secteur de la réfrigération!!!
Even though Hydrofluoro compounds (HFC) are widely used as refrigerants because of their environment friendly nature (no damage to ozone layer), CO2 is also a popular choice as refrigerant.
Some of the advantages of CO2 as a refrigerant are:
widely available;
high volumetric cooling capacity and heat transfer;
no recovery or recycling required;
non inflammable and non toxic;
environment friendly;
the compressors are compact in size
Some of the difficulties is using CO2 as refrigerant are: high working pressure and large pressure difference (3 to 5 times conventional refrigerants); low theoretical efficiency with normal refrigeration systems. Hence it requiresadvanced technology compressor and refrigeration system. The hoses need to be strong as well as the evaporators and gas coolers are used instead of condensers as there is no phase change of the refrigerant. They are widely used in vending machines.
One of the difficulties of CO2 as a refrigerant is its detection and level control.
Chemical sensor elements cannot reliably measure CO2 levels. Other alternate detectors include infrared sensors.
Cryocon Containers Inc., a publicly owned Vancouver, Canada based Company and their joint venture partner Pacific Shipping Systems Inc., have introduced the first 48 foot Domestic Intermodal container to the U.S. frozen food industry using liquid CO2 as the refrigerant, replacing current mechanical CFC based freon coolants.
Continued testing of the finished model using state of the art container technology has reaffirmed the superiority (proven earlier in railcars) of the system over conventional mechanical reefers. One recent test, initiated jointly with Burlington Northern Railway and their customer Twin City Foods, a leading National Distributor, entailed transporting a load of frozen corn at zero degrees F. from Ellensburg, Washington to Lake Odessa, Michigan. The trip was five and a half days with the load arriving at zero degrees F. Tom Matheson, Traffic and Distribution Manager at Twin City Foods was quoted as saying "everything went perfect" and "we feel that the cryogenic container will fit into the frozen market quite well."
The system, which has no mechanical moving parts, is cost competitive to build, economical to operate, allows competitive cubic space for product and has no maintenance requirements necessary to conventional mechanical reefers. The advantages bring overall shipping costs down dramatically.
The CO2 cryogenic technology was first introduced in the early 1980's when Van Thomsen, then of Liquid Air Corporation, together with the American Frozen Food Institute and Burlington Northern Railway built a working prototype railcar with a system whereby liquid CO2 is pumped into a bunker located in the top of the car where it turns into dry ice snow. Through the natural process of warm air rising inside the product storage area, the dry ice snow sublimates and cryogenic gas drops down and maintains the temperature of the frozen product.
Cryocon Containers Inc., using the latest Thomsen technology, is now able, for the first time, to install their system into thin skinned Intermodal and I.S.O. containers as well as over-the-road truck trailers.
The supply of commercial liquid CO2 is readily available, inexpensive and also causes no net effect on the ozone layer.
Cryocon is currently building an over-the-road trailer for an International food distributor, five 40 foot I.S.O. ocean containers and five 48 foot Intermodal containers for marketing purposes to frozen food processors, third party shippers and premier shipping lines. The company uses established quality manufacturers under license to build the containers incorporating the technology from the ground up.
RACINE, Wis. -- Modine Manufacturing Company (NYSE:MOD), a worldwide leader in heating and cooling technology, announced today it has won a second generation contract with the United States Army, Research, Development and Engineering Command, to continue to develop alternative HVAC systems that utilize transcriticalcarbon dioxide (CO2) technology. Modine will demonstrate its technology on an Up-Armored M1114 High Mobility Multi-Wheeled Vehicle (HMMWV), which is in active use by the military in hot climates such as Iraq and Afghanistan as well as in Environment Control Units (ECU), used to provide space heating and cooling for equipment and personnel.
These new prototype environmental control systems and components use CO2 as the refrigerant, which provides a number of advantages over the current R134a refrigerant. CO2 is a natural refrigerant that is pulled from the air and if leaked, poses no threat to the environment. It also releases no harmful hydro-fluorocarbon (HFC) gases. It is non-toxic and non-flammable and enjoys the highest safety rating established by commercial standards.
"In extreme temperatures, around 130 degrees Fahrenheit, CO2 is an excellent refrigerant. In addition to its environmental benefits, it also cools more quickly than current systems, is more fuel efficient and takes up less space in the vehicle," said Dr. Tony De Vuono, Modine Vice President and Chief Technology Officer. "CO2 also provides excellent heating for the ECU's when operating the system in heat pump mode."
United States Senator Herb Kohl of Wisconsin, who sits on the Senate Appropriations Committee, congratulated Modine for its work with the U.S. Army. "Modine has become a leader in alternative coolant systems. This second contract for Modine allows a technology leader to focus on two major industry needs: reduce the impact of refrigerant release on the environment by learning how to best apply CO2 refrigerants and improve HMMWV air conditioning performance in extremely challenging environments."
The first generation contract, awarded in September 2003 for $1.35 million, allowed Modine to develop both climate control systems and outfit the first CO2 cooled HMMWV and ECU. "This second generation contract, valued at $2.975 million, and lasting 12 months, will allow Modine to optimize the designs for both performance and manufacturing," said Sam Collier, Modine Advanced Systems Development Manager. A fleet field trial could follow this second contract, sometime late next year, added Collier.
Army experts say the system has performance, environmental and logistical advantages over existing systems for the 9,900 pound HMMWV. "Performance comes first," said John Manzione, RDECOM's Environmental Technology Team Leader and CO2 project manager. "These HMMWV's are being deployed as armored vehicles, with heavily equipped soldiers operating in extreme temperatures under very stressful conditions. A higher-performing cooling system that comes in a more compact and lightweight package offers tremendous operational advantages."
"Modine has done an excellent job of designing a first generation CO2-based cooling system that has been shown to provide quicker and deeper temperature pulldown in the most extreme battlefield conditions. We look forward to working with Modine on this next phase of development and we appreciate the continued sponsorship of the Army's Product Manager, Light Tactical Vehicles (PM-LTV)," said Manzione.
John Dolney, Acting Assistant Product Manager for Up-Armored HMMWV, PM-LTV added, "It's good to see product improvement initiatives that show promising performance benefits, while at the same time demonstrating superior environmental friendliness. Reducing basic vehicle weight will increase cargo-carrying capability and will also mean a more reliable vehicle to begin with. We look forward to Modine's second phase of development work and beyond that, the verification of production readiness for the CO2 cooling system."
Modine made history in July, when employees demonstrated the capabilities of the HMMWV operating with the prototype CO2 air conditioning system in Scottsdale, Arizona at the SAE Alternate Refrigerant Symposium. Five members of the Modine design team, along with representatives of the U.S. Army RDECOM, PM-LTV, and the Tank-Automotive & Armaments Command, offered demonstration rides in the military vehicle for automotive experts, design engineers and industry leaders. The system has also been field tested in Death Valley National Park, where it operated successfully for a three-day test under extreme conditions of up to 117 degrees Fahrenheit.
Modine has been working on CO2 HVAC technology for eight years. "With impending legislation in Europe that proposes to start phasing out R134a for automotive AC systems in 2011, Modine has successfully developed and demonstrated full systems integration capability on a number of vehicle platforms," said Steve Memory, Modine's Manager of Global HVAC Technology. "The contract with the U.S. Army has greatly helped this development work and proved that Modine's system has the durability to operate very well under extremely challenging conditions."
Modine, with fiscal 2004 revenues of $1.2 billion, employs more than 8,500 people worldwide at 35 facilities, and specializes in thermal management components, bringing heating and cooling technology to diversified markets. Modine's products are used in light, medium, and heavy-duty vehicles, HVAC equipment, industrial equipment, refrigeration systems, fuel cells and electronics. More information about Modine can be found on the Internet at www.modine.com.
Note to Editors: Photos of the HMMWV are available by contacting Lori Stafford in Modine Corporate Communications.
This news release may contain statements, including information about future financial performance, accompanied by phrases such as "believes," "estimates," "expects," "plans," "anticipates," "will," "intends," and other similar "forward-looking" statements, as defined in the Private Securities Litigation Reform Act of 1995. Modine's actual results, performance or achievements may differ materially from those expressed or implied in these statements, because of certain risks and uncertainties, which are identified on page 31 of the Company's 2004 Annual Report to Shareholders and other recent Company filings with the Securities and Exchange Commission. Specifically, this news release contains forward-looking statements regarding emerging technology and incremental business. These forward-looking statements are particularly subject to a number of risks and uncertainties, including international economic changes and challenges; market acceptance and demand for new products and technologies; the ability of Modine, its customers and suppliers to achieve projected sales and production levels; and unanticipated product or manufacturing difficulties or regulatory activity. Modine does not assume any obligation to update any of these forward-looking statements
People all over the world are taking measures to reduce the greenhouse gases emitted as a result of the way they live. Turning the heating thermostat down, and the air conditioning up, by 1.5deg saves around 1 tonne of CO2 (carbon dioxide) a year. An energy- efficiency refrigerator could save nearly half a tonne of CO2 a year, compared with an older model. Insulating windows, doors, and electrical outlets and adding more insulation to the attic and basement reduces energy consumption. Compact fluorescent, spiral light bulbs are 75 per cent more efficient than standard light bulbs.
Energy savings on the road Keeping tyres optimally inflated uses less fuel and cuts down emissions. Driving at 8 kmh below the speed limit over an 13km commute to work saves 350kg of CO2 a year.
Reducing Garbage
On average a person throws away 10 times his or her bodyweight in rubbish a year. One kilogram sent to landfill produces 2kg of methane.
