Saving energy through cold storage

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specialists in heat and cold of long-distance services of the city of Chemnitz and thermodynamics researchers the Technical University (TU) Chemnitz (Saxony) are present, and at the request of the Federal Ministry of Economy and Labour (BMWA), research to determine if the ice packs should not be used
more in large systems of energy supply. The cold system is long distance of the city of Chemnitz serves as a study unit for practical research.

The results of the study could be used in the future on a national scale for the construction or modernization of cooling systems. The different project partners are analyzing to what extent the use of ice packs could afford to use
refrigeration machines absorption of more intensive way. The basic idea: the cold accumulator is charged during the night and can then cover the peak load cooling system has distance during the day.

For the city of Chemnitz, this would mean that a larger amount of excess heat produced by the Chemnitz North Central would be converted to cold and that in total less electricity is consumed. This solution is after the opinion of experts not only ecological, but
also economically viable, which is not always the case in the energetics industry.

The current results of the technical feasibility and cost estimation makes researchers optimistic. Cooperation between the University of Chemnitz and city services has also been realized in December 2004 by the establishment of a contract between the two partners.

contacts:
- Ulf Uhlig - tel: + 49 371 525 4740 - email:
ulf.uhlig@swc.de
- Thorsten Urbaneck - tel: + 49 371 531 2463 - email:
thorsten.urbaneck@mb.tu-chemnitz.de - Internet : http://www.tu-chemnitz.de
Sources: Depeche IDW, Press release of the TU Chemnitz, 07 / 02 / 2005
Editor: Nicolas Condette,
nicolas.condette@diplomatie.gouv.fr

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