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) Germany Great Britain USA Turkey Hong Kong China Spain Brazil India
2 Factories in Austria 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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