Supermarket re-uses waste heat to cut costs

Intelligent use of waste heat from refrigeration cabinets used in food retailing can save both energy and costs. The Daikin Europe Conveni-pack is a mass produced allin- one system that uses all waste heat generated through refrigeration heat within commercial food outlets. The 100th system to be marketed in Germany is installed in a branch of denn's Biomarkt (an organic supermarket chain).

The chain wanted a solution that would offer an integrated approach for cooling, heating and airconditioning.

Conveni-pack has enabled it to do without fossil fuels, to benefit from an energy saving of 20-30% and reduce CO2, compared to older branches still using conventional units.

Four supermarkets were fitted with the R-407c refrigerant operated model. The second generation Conveni-pack, with new compressor technology and a new cooling agent management system, has been on the market since May 2010. This newer R-410A operated system ensures efficient operation with low energy consumption and, when compared to the earlier model, reduces running costs further - by an average of 18%.