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  4. Ongoing Commissioning of a High Efficiency Supermarket with a Ground Coupled Carbon Dioxide Refrigeration Plant
 
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2012
Conference Paper
Titel

Ongoing Commissioning of a High Efficiency Supermarket with a Ground Coupled Carbon Dioxide Refrigeration Plant

Abstract
A significant reduction in the energy consumption and greenhouse gas emissions of supermarkets can be reached by the combination of several innovative components and the continuous optimization of their operation. A German food retail chain developed a new supermarket concept combining several innovative solutions for the refrigeration, lighting and heating/ventilation with the goal to reduce the energy consumption by about 30% compared to a standard subsidiary. A highly insulated building envelope, the use of daylight and covered refrigeration units contribute jointly to reach the goals. The key component of the concept is a carbon dioxide refrigeration plant with waste heat recovery. To reduce the efficiency losses in supercritical operation, carbon dioxide is cooled through a borehole heat exchanger using the ground as a heat sink. In the paper the design concept, the results of simulation studies and of the first monitoring year are presented and discussed.
Author(s)
Rehault, N.
Kalz D.
Hauptwerk
ICEBO 2012. Academic presentations. Online resource (Nicht mehr online verfügbar)
Konferenz
International Conference for Enhanced Building Operations (ICEBO) 2012
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Language
English
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Fraunhofer-Institut für Solare Energiesysteme ISE
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