Lehrstuhl für Energieverbundtechnik // Montanuniversitaet Leoben


Temperature stabilisation in the low-load zone of small district heating networks operation

In the course of the proposed research project TFlex it is planned to check if the losses adherent to small district heating networks during periods can be reduced. . This is to be done by deactivating the network and supplying the customers from previously charged decentralized storage tanks.

With the help of calculations and simulations based on a broad dataset the following questions are to be answered:

  • What is the size of the storage units for maximum savings in different scenarios? Can storage losses and investment costs be reduced by clustering the storage units?
  • What is the optimal control strategy for differing network topologies?
  • What mechanical strain does TFlex put on the tubes?

Aside from the charging the storage units from the network solar charging shall be investigated. This leads to an additional load shedding of the network.

  • What is the optimal size of solar collectors to reduce heat losses with the highest possible cost-effectiveness?

The defined technical goals and their calculated results will be evaluated economically. With the help of sensitivity analysis the network parameters which have the largest influence on profits and payback-times will be identified.

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