Workpackage 1 - Solar District Heating

There are three different methods of connecting solar thermal with district heating: centralised or de-centralised collector fields where heat is supplied into the network, and solar heating systems which reduce the load of a particular user (decentralised). Today, large solar plants are designed and controlled based on consultant’s knowledge and experience on district heating systems. There is a lack of knowledge about optimum sizes of solar collector fields, heat storage and heat pumps, component and system design, control strategies, integration of the complete energy plant(s) into the district heating system and related to stagnation problems.

• WP1-1 Centralized versus decentralized collector fields in Block and District Heating Systems
• WP1-2 Hydraulic concepts, control strategy
• WP1-3 Flexible hydraulic concepts and stagnation prevention
• WP1-4 Southern European district heating
• WP1-5 Modern planning methodology for local heating networks
• WP1-6 Design, investigation, and modelling of innovative Solar Drainback Systems​​​​​​​

Chris Bales

1. Metzger, J., Matuska, T., Sourek, B. Performance of solar combisystems with evacuated flat-plate collectors and different heating systems ISES Eurosun 2008, Lisbon, Portugal, 2008
2. de Keizer A.C., Vajen K. and Jordan U. Monitoring and failure detection for large scale solar thermal systems: a simulation based approach Proceedings of Gleisdorf Solar 2008, Gleisdorf, Austria, 2008
3. de Keizer A.C., Vajen K. and Jordan U. Overview of Monitoring and Failure Detection Approaches for Solar Thermal Systems Proc. EuroSun, Lisbon, Portugal, 2008
4. Matuska, T., Metzger, J., Zmrhal, V. Design tool KOLEKTOR 2.2 for virtual prototyping of solar flat-plate collectors ISES Eurosun 2008, Lisbon, Portugal, 2008