Expieriences On Low-Temperature District Heating In Lystrup – Denmark

Jan Eric Thorsen, Christian Holm Christiansen, Marek Brand, Peter Kaarup Olesen, Christian Ting Larsen

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This paper includes main findings made during the Danish governmentally founded project “Development and Demonstration of Low-Energy District Heating for Low-Energy Buildings”, EFP2007, and the Danish governmentally founded project ”CO2-reductions in Low-Energy Buildings and Communities by implementing Low-temperature district heating systems. Demonstration cases in EnergyFlexHouse and Boligforeningen Ringgården” EUDP 2011. A key challenge for optimum and competitive district heating (DH) system operation is reducing heat loss in networks. Today building regulations in most countries demand reduction of heat consumption for individual buildings. This means ratio between net work heat loss and heat consumption in buildings will become even more important in future. To address this challenge low-temperature DH network concept is analysed and tested in real scale. This paper describes main findings in relation to low-temperature DH unit concepts, operational experience with the system, including 41 low-energy apartments and energy losses realised in distribution. This also includes findings in relation to domestic hot water simultaneous factors and users’ comfort.
Original languageEnglish
Title of host publicationProceedings of International Conference on District Energy
Publication date2011
Publication statusPublished - 2011
EventInternational Conference on District Energy - Portorož, Slovenia
Duration: 1 Jan 2011 → …


ConferenceInternational Conference on District Energy
CityPortorož, Slovenia
Period01/01/2011 → …


  • User comfort
  • Laboratory measurements
  • Energy efficiency
  • Field measurements
  • Distribution energy loss
  • Simultaneous factors
  • Low-temperature District Heating

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