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Distributed heat generation in a district heating system
Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Energianalys AB, Sverige.ORCID iD: 0000-0003-1965-0532
Lund University, Sweden.
2016 (English)Conference paper, Published paper (Refereed)
Abstract [en]

District heating (OH) systems need to be improved  regarding integration  of decentralised  heat generation. Micro production, prosumers and smart grids are terms becoming more and more common  in  connection  to  the  power  grid.  Concerning district  heating,  the  development  is slower, although improving. Today there are a number of such decentralised units for heat generation,  mainly  solar,  that have been partly evaluated.  Previous  studies  have shown  that there is a need to develop a better control system for the connection to the district heating grid.

In principle  there are four different ways to connect  a local heat generator  to a OH grid. The most  common  technology  is Return/Supply   connection  (R/S). In this concept it is necessary to use a feed-in pump and equipment  to get correct temperatures  and flows.

Evaluatian of solar thermal (ST) installations in Sweden shows that the feed in flow and heat-power  vary considerably;  more than the heat-power  productian  from  the ST plant.  This causes a drop in heat generation from the solarthermal system. However, if the ST installation is small in relation to the OH system, it will not cause any problems  for the OH system. There are more than 20 R/S ST installations in Sweden and up until recently, no complaints from OH Campanies regarding poor performance were recorded.

Place, publisher, year, edition, pages
2016.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-34555OAI: oai:DiVA.org:mdh-34555DiVA, id: diva2:1060255
Conference
Gleisdorf SOLAR 2016, International Conference on Solar Heating and Cooling, 8-10 June 2016, Gleisdorf, Austria
Available from: 2016-12-28 Created: 2016-12-28 Last updated: 2016-12-28

Open Access in DiVA

fulltext(2016 kB)31 downloads
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Type fulltextMimetype application/pdf

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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