Ralf

Strategic District Heating-Grid Simulation in Bad Langensalza

As part of the site survey, for the new power plant to supply the district heating networks in Bad Langensalza, EA Systems Dresden carried out fundamental grid investigations. On behalf of BET Büro für Energiewirtschaft und Technische Planung GmbH, six selected operating cases were investigated. For the appropriate analysis, individual network parameters such as pressure, temperature and heat losses of the connection and relevant network points (weak points), for various operating scenarios, were determined and evaluated. EA Systems Dresden’s own grid models of the Green City Library were used in SimulationX for the calculation. As a result, well-founded conclusions could be made about the viability and technical feasibility of the planned measures.

Yearly pressure and temperature curves with full coverage at the old location
Analysis of the individual network parameters for different operating scenarios

Our Services

  • Grid calculation of the existing district heating grid and comparison with actual operating modes
  • Assessment of whether the new location can supply the entire district heating area if necessary, should a defect occur at the existing CHP plant or on the main heating branch (ring supply via two locations)
  • Nominal diameter verification of the existing pipelines incl. replacement recommendation for individual sections
  • Evaluation of the position and dimensioning of the new pipeline layout

Project Results

  • A full supply of the entire grid is possible from both central heating stations provided that the new feed-in pipeline is sufficiently dimensioned
  • Critical flow pressures in the house connection stations are not reached
  • The investigated pipeline layout is sufficiently dimensioned to integrate the second central heating plant location – with the appropriate sizing of the coupling pipeline
  • Return flow temperature reduction of the house connection stations to 40 °C reduces the power loss of the grid by 24 %