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1999
Titel
Möglichkeiten und Grenzen der Fernwärme-Kälte-Kopplung
Alternative
Possibilities and limits of cold generation with district heat
Abstract
Die Fernwärme-Kälte-Kopplung (FWKK) stellt eine besondere Form der Kraft-Wärme-Kälte-Kopplung (KWKK) dar, bei der bestehende Fernwärmesysteme zur Kälteerzeugung genutzt werden. Da Fernwärmesysteme vor allem in Innenstädten mit hohem Gewerbeanteil bestehen und diese im Sommer nur zu einem Bruchteil genutzt werden, kann die Fernwärme-Kälte-Kopplung einen Beitrag zur Gewährleistung einer weitergehenden Nutzung der Fernwärme leisten. Die Autoren stellen die Ergebnisse des BMBF-Verbundprojektes »Fernwärme-Kälte-Kopplung« vor und zeigt Möglichkeiten zur sinnvollen Nutzung der FWKK auf.
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Combined District Heating and Cooling Supply Systems (CDH&DC) represent a chilled water supply by superordinated district heating systems. This systems have to be understood as a special form of combined heat, cold and power supply (CHCP) for which the heat required for the generation of cold comes from CHP plants via District Heating. The use of district heat for heat-driven refrigerating processes is of advantage for the air conditioning of buildings in summer since district heating systems in municipal areas are well extended for the supply of heat and are hardly used in summer. Unlike the relatively even current power load curve over a year the heat demand has a "summer recess" for typical supply situation in Middle Europe. Besides, larger district heating customers from the service sector, who also represent potential chilled water customers for most part, are frequently located in downtown areas. The authors represent the results of the BMBF-project "district heating and cooling" and explain possibilities and limits of chilled water generation with district heat by single effect water-LiBr absorption chillers. Futhermore, alternative thermally driven chillers are represented.
Author(s)