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Temperaturdynamik i Västerås fjärrvärmenät
Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
Ansvarlig organisasjon
2008 (svensk)Independent thesis Basic level (professional degree), 20 poäng / 30 hpOppgave
Abstract [en]

In this thesis the dynamics of temperature and flow in the Västerås district heating system is simulated using a model developed in Dymola. The model is dynamic and takes the transit times in the network into consideration. Due to insufficient statistical material, no pressure calculations have been done. Only the dynamics of temperature and mass flow have been simulated.

The district heating network has been split into 18 nodes, one production unit and the distribution pipes. Due to the lack of good measurements, especially from different places in the network, many simplifications have been made. Data gathered at the production unit have been used to form equations for things happening in the nodes. These simplifications means that the model is not suited for seeing what happens in the DH network and should only be used for seeing what happens at the production unit. However, if more data were to be gathered at more places around the network, the equations could be rewritten thus improving the model substantially.

sted, utgiver, år, opplag, sider
Institutionen för samhällsteknik , 2008. , s. 79
Emneord [en]
district heating, modelling, Modelica, Dymola, CHP
Emneord [sv]
fjärrvärme, modellering, Modelica, Dymola, kraftvärme
HSV kategori
Identifikatorer
URN: urn:nbn:se:mdh:diva-4305OAI: oai:DiVA.org:mdh-4305DiVA, id: diva2:126587
Presentation
2008-04-04, -, R-huset, Gurksaltargatan 4Västerås, 10:00 (engelsk)
Uppsök
Technology
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Examiner
Tilgjengelig fra: 2010-05-31 Laget: 2008-11-19 Sist oppdatert: 2010-10-21bibliografisk kontrollert

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