Answer the survey: What does your car air conditioner mean to you and the environment?

In January 2011, the German environmental group DUH and the German automobile club VCD have launched Pro Climate, a campaign alerting consumers about the greenhouse gas potential of chemical refrigerants in car air-conditioning systems and the dangers the potential alternative HFC1234yf might bring. An online survey now invites people to share opinions about the daily use of their A/C.

Air-conditioning systems have become a standard feature in cars. Over 90% of new cars are equipped with A/Cs and most drivers do not understand how they work. Even less consumers know that cars’ A/Cs cause higher fuel consumption and use a highly climate damaging refrigerant, namely R134a.

The German environmental group DUH and the German automobile club VCD started in January 2011 the campaign “Pro Climate: efficient car air-conditioning systems with natural refrigerants” that informs consumers about the potential use of CO2refrigerant in mobile air-conditioning as well as the environmental and health concerns related to the new substance under consideration, namely HFC1234yf.

The campaign has kicked off in January 2011 simultaneously to the entering into force of the European directive on emissions from air-conditioning systems in motor vehicles (2006/40/EC) also called the MAC Directive. In the effort to mitigate climate warming from mobile air-conditioning, this directive foresees that new types of cars must contain in their A/C units refrigerants with a global warming potential (GWP) of below 150.

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Dorin to feature the widest CO2 compressor range at EuroShop

The leading compressor manufacturer with headquarters in Italy is continuously improving and broadening its CO2 compressor range. This week, Dorin is showcasing its latest developments at the EuroShop trade fair in Germany. With displacements from 1.1 m3/h to 26.6 m3/h, Dorin makes it possible to perfectly match all kind of applications, including convenience and hyper stores, distribution centres as well as residential and industrial heat pumps.

With an impressive 15 year track record in CO2transcritical compression technology, more than 12.000 of Dorin’s CO2 units are running smoothly today throughout Australia, Japan, China, Korea, Europe, Canada and the US. Thorough internal testing and use of the latest technology solutions ensure that Dorin continues to produce products of both high quality and reliability.

CO2 compressors for all your needs

The particularly vast product range of Dorin’s CO2units make them suitable for all kinds of applications, including the following:

  • Convenience stores
  • Superstores
  • Hyper stores
  • Distribution centres
  • Residential heat pumps
  • Commercially sized heat pumps
  • Industrially sized heat pumps

Dorin’s CO2 product range

  • CD range for trans-critical applications:The semi-hermetic reciprocating compressor range features a maximum standstill pressure of 90 100 bar and displacement from 1.10 to 26.6 m3/h.
  • SCC range for subcritical applications:The semi-hermetic reciprocating compressor has a maximum standstill pressure of 36 bar and is available in displacements from 2.89 to 48.8 m3/h.

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Danfoss R744 update: new ADAP KOOL controller, high pressure valve and more

With an already impressive track record and knowledge base for CO2 refrigeration solutions, the Danish specialist is continuously improving its existing technologies as well as developing new components. This brief Danfoss R744 update provides you an overview of the existing portfolio and the new products coming up, including the new CO2 ADAP KOOL pack controller, the high pressure valve CCMT and an upgraded GBC ball valve.

To meet the increasing market demand, especially within the food retail industry, Danfoss continues to develop its product portfolio for CO2 systems. Building on several years of experience the company’s main target is to meet the market needs with the highest quality products. 

New products from Danfoss coming soon

Upcoming innovative Danfoss technologies include: 

  • CO2 ADAP KOOL: A new CO2 ADAP KOOL pack controller that integrates more functions into one unit, giving the end user even more energy efficiency options. Among the functions: heat reclaim and oil management.
  • CCMT: A new high pressure valve, namely CCMT, which will serve as a supplement to the ICMTS in the low end of the ICMTS capacity range.
  • GBC ball valve: An upgraded GBC ball valve optimized for CO2 and high pressure.
  • Portfolio activities: Danfoss has more projects forthcoming in their CO2 portfolio within their core competences. More information soon on R744.com.

R744 Portfolio extract

For the food retail CO2 segment, the following key components were best-sellers last year:

  • ADAP KOOL and EKC: The well known ADAP KOOL and EKC electronic controllers
  • ICMTS: The legendary ICMTS valve for high pressure transcritical applications with MWP of 140 bar and MOPD of 90 bar
  • CCM valve: The CCM valve released in October 2010 for gas by-pass and expansion with MWP of 90 bar and MOPD up to 50 bar
  • AKVH valve: The known work horse AKVH valve for expansion with MWP up to 90 bar and MOPD of 35 bar

Safety and reliability

Danfoss, as the market leader within controls for CO2, places great emphasis on secure safety and reliability. For the food retail segment, general safety, food safety, reliability, sustainability and ease of use are among the top priorities for product development. Various quality and performance initiatives employed by Danfoss include the following:

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Report: What energy saving measures are German retailers employing?

The German-based EHI Retail Institute has published the findings of its “Energy Management in Retailing 2010” survey, which investigates retailers’ engagement in energy-saving measures, such as heat recovery and CO2 refrigeration. German food retailers in particular are paying increasing attention to the choice of refrigerant, with all surveyed retailers having systems that use CO2.

The survey spans the entire retail industry, with the companies participating in the survey totaling sales of some €165 billion, representing about 35% of retail industry sales in Germany, Austria and Switzerland. Of the total of the surveyed companies 37% are coming from food retailing, including supermarkets/hypermarkets and self-service discount department stores, with discounters that have been to date implementing CO2 technology more widely, however, having been omitted.

Nearly all surveyed retailers are exploring CO2

With supermarkets paying increasing attention to the choice of refrigerant, nearly all of the surveyed retailers reported having CO2 systems, especially freezers: 

  • 11% of the surveyed food retailers (excluding discounters) use CO2 for their freezers, with the rest being shared between R404A (71%), R134a (5%), with the rest (13%) opting for HFC507, HC1270 or HCFC22.
  • 4% of the surveyed food retailers (excluding discounters) use CO2 for chilling: To chill foods, CO2 has a share of 4%, R404A 49%, R134a 38%, with the rest 9% shared between HC290 and HCFC22. The survey found that there are some transcritical CO2 systems in pilot use for chilling and freezing in stores other than discounters, as the latter type is excluded from the scope of the study.

However, the report assesses that transcritical systems in German food retailing are more expensive due to lack of series production, and that widespread implementation can be seen only among discounters.

 

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Coke sustainability review counts HFC-free refrigeration uptake

The Coca-Cola Company has published its 2009/2010 Sustainability Review, profiling its efforts to grow business in sustainable ways. The report highlights that as of September 2010, the company had placed 127,191 HFC-free refrigeration units in 2010, bringing the total to more than 240,000 units placed since 2006.

The report also underlines that the company has invested more than $60 million in research and development to advance the use of climate-friendly cooling technologies.

The efforts are in line with the company’s pledge to transition to 100% HFC-free equipment for all new coolers and vending machines by the end of 2015, a move that is projected to result in emission reductions that will exceed 52.5 million metric tons over the life of the equipment, which is the equivalent of taking more than 11 million cars off the road for one year.

In addition to HFC-free refrigeration, Coke has also installed more than 3.1 million intelligent energy management devices that reduce energy consumption by monitoring energy use on its refrigeration units. 

Assessing the carbon footprint of beverages in China

The 2009 Review includes information on different initiatives that the company but also its bottling partners are undertaking to address their energy and carbon footprint.

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ASHRAE Winter Conference 2011: policy update from Japan, US and California

The 2011 ASHRAE Winter Conference being held in Las Vegas this week in parallel with the AHR Expo – the world’s biggest HVAC trade fair – featured presentations addressing industry and policy efforts to minimise the HVAC industry’s impact on the environment. This first article provides an overview of some of the presentations on developments in refrigerant management efforts across Japan, the US and California.

Japan: Refrigerant management system for mitigating global warming: a Japanese approach, Momoki Katakura, JSRAE 

To put discussions into perspective, Mr. Momoki Katakura, President of the Japan Society of Refrigerating and Air Conditioning Engineers (JSRAE) provided the audience with a picture of refrigerant emissions. Current leakage from refrigeration and air-conditioning equipment globally accounts for 2 billion tons of CO2, which translates to an 8% share of total global CO2emissions. In Japan, HFC emissions equal 13 million tons of CO2, accounting for Japan’s 1% of total emissions, while 85% of the HFC emissions are emitted from refrigeration and air-conditioning equipment.

Refrigerant emissions are seen as a barrier to the further deployment of heat pumps, a key technology for Japan to simultaneously achieve effective use of fossil resources, energy conservation and reduced emissions. That been said, Japan has endorsed a two-sided approach to alleviate this barrier: On the one hand establish a refrigerant management programme and on the other accelerate R&D for low Global Warming Potential refrigerants and heat pumps, such as CO2 for heat pumps.

A cross industry Refrigerant Management Forum has been founded in Japan, with its activities encompassing: 

  • Establishing the refrigerant management system: Through 2010, several studies were carried out, with a view of field testing the refrigerant management system in 2011 in selected industries and finally implement official government regulations and the system in 2012.
  • Establishing the traceability of distributed refrigerants, including recordkeeping and tracing the delivery path of refrigerants using information and communication technology (ICT) devices such as the IC tag, which will be field tested in Japan this year.
  • Establishing refrigerant management technology, including improving anti-leakage technologies and establishing an inspection and certification system

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Coming soon: MicroGroove Copper Tubes to increase efficiency

The International Copper Association is joining R744.com as a new partner to introduce a new heat exchanger coil technology that benefits from smaller diameter copper tubes. The unique MicroGroove tubes feature higher efficiency and reduce the amount of refrigerant and tube material.

By reducing the diameter of copper tubes in coils, the new MicroGroove technology can increase energy efficiency for air-conditioning and refrigeration products. The smaller diameter tubes can also operate at higher pressure, which makes them well suitable for the CO2 refrigerant. As working pressure is directly proportional to wall thickness and inversely proportional to diameter, tubes with the same thickness and smaller diameter can therefore withstand higher pressures than larger diameter.

The MicroGroove brand is supported and presented by the International Copper Association, Ltd. (ICA). Based in the US, it is the leading organization for promoting the use of copper worldwide. ICA is responsible for guiding policy, strategy and funding international initiatives and promotional activities.

Reaction

“The ICA and its members are committed to aiding OEMs in the shift from larger diameter copper tubes to smaller diameter copper tubes wherever it makes sense economically and environmentally,” says Nigel Cotton, OEM Team Leader, International Copper Association.

 

CLICK HERE TO READ MORE ABOUT THE APPLIATION RANGE AND FEATURES.

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