Natural refrigerants for commercial freezers

Practical experience

Reinhold Resch AHT Cooling Systems, R&D Manager Vienna, 2013.06.03 AHT Rottenmann AHT Group

AUSTRIA (Headquarter) Great Britain USA Hong Kong Spain India

2 Factories in and China

Quality management Environment management according IS0 9001:2008 according ISO 14001:2004

3 Turnover

291,3 300,0

275,0 249,1 236,7 250,0 219,5 AHT 225,0 212,0 214,6 192,7

200,0 175,0 175,0

150,0 126,8 115,0 Industry 125,0 110,3 89,1 100,0

75,0

50,0

25,0

0,0 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012

4 Supermarket equipment

Athen XL Supermarket Manhattan

Miami ECO Athen XL ECO

Salzburg Paris

5 Supermarket installations worldwide

Germany

Korea

More than 530.000 cabinets with R290

supplied to all over the Fresh & Easy, USA world 6 Supermarket installations worldwide

Key features in general • stand-alone cabinets or banked together in an isle each with an independent refrigeration circuit • environmental friendly • natural refrigerant and low energy consumption • significant energy savings compared to remote systems • products are kept in perfect temperature • large volume capacity • best visibility due to curved lids and lowered front edges • flexibility in the store (plug in solution) • 60% reduction in running costs compared to open top freezers • available with internal light • low capital costs 7 Supermarket installations Thailand

Key features in Thailand (SIAM MAKRO Thailand) • installations since 2007, ECO and LED version since 2013 • total numbers of installed cabinets 2750 units • in average 64 units per store

Store information / feed back • significant electricity savings • product temperature -18°to -22°(@ 25°C; 60%) • no AC during the night time • performance is very well • very low failure-rate and no maintenance Thailand • Carbon reduction per year: 404 tons

8 Benefits of natural refrigerants

TEWI = total equivalent of warming impact

• TEWI – influences TEWI = • direct influences • refrigerant losses (GWP x L x n) + Natural•~cabinet 0 parameterrefrigerants  (GWP x m~ x (1 -alpha))0 + • indirect influences (n x E x beta) • energy consumption

Reduction of the energy consumption

9 Energy consumption in kWh/24h

R22 R404A R290

VS

IQ²

AAO -50%

Triple solution • no ODP • no GWP • minimal TEWI

10 Thank you your “freshness partner” worldwide

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