Analysis of fluid flow and heat transfer in district heating pipelines using the finite element method

Irina Gabrielaitiene, Bengt Sundén, R. Kacianauskas

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingResearchpeer-review

4 Citations (SciVal)


The finite element method is applied to solve coupled steady-state fluid flow and heat transfer problems in insulated pipes of district heating networks. The main advantage of the finite element method involved here is the standard discretization and solution technique for both coupling of temperature-dependent physical properties in the thermo-hydraulic flow and for description of the multilayered structure of insulation, which may also be situated in the environment, such as soil or air. In order to describe the above problem in a standard manner, the complex thermo-hydraulic macroelement has been proposed. This element presents a combination of a standard hydraulic pipe element and one-dimensional thermal elements of the ANSYS code. The proposed approach is used to investigate temperature-dependent fluid properties and the role of the coupling in district heating pipelines.
Original languageEnglish
Title of host publicationComputational Studies
PublisherWIT Press
Publication statusPublished - 2002
EventHeat Transfer VII, 2002: International Conference on Advanced Computational Methods in Heat Transfer - Halkidiki, Greece
Duration: 2002 Apr 222002 Apr 24
Conference number: 7

Publication series

ISSN (Print)1462-6063


ConferenceHeat Transfer VII, 2002

Subject classification (UKÄ)

  • Energy Engineering


  • Thermal-hydraulic flow
  • Flow rate
  • District heating system (DH)


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