The deliverable 2.2 of the RESTORE project is the result of Task 2.2 – “TCES small scale (1-2 kWth) continuous reactor design and manufacturing (M5-M12)” . It describes in detail the design of a 1-2 kWth continuously operated thermochemical energy storage (TCES) reactor.

This report is related to work package 2:

• “RESTORE High Energy-density Thermo-chemical Storage for daily and seasonal Energy Storage in DHC” as well as in combination with the further task in WP2, T2.1:
• “TCES conceptual design and batch type TCES experiments (M1-M18) ” and T2.3:
• “TCES small scale continuous reactor testing and optimisation (M13-M28)

It also provides the basis for designing and manufacturing a TCES reactor in the size of 30- 50 kWth in T2.4 – “Design of the 30-50 kWth /100-150 kWh TCES reactor for coupling with the thermodynamic cycle (M18-M28)”.

Scope of reactor experiments

Since the decision for a specific reaction system takes place at a later point of time, the focus during the engineering process of the continuous reactor was on its adaptability of it, to the requirements of the different reaction systems. That’s why, the main focus of this continuously operated reactor is, to investigate the continuous reaction of the different considered thermochemical energy storage systems and to identify the challenges, which could arise. In parallel, the essential framework conditions, e. g. heat transfer to/from the reactor, based on the flow structure of the suspension has to be analysed as well. For this task, a further reactor test stand was established, which allows performing experiments at different concentrations of solids and by using different stirrer types, as well as combinations of them.

In addition, Deliverable 2.2 introduces the test procedure of the experiments conducted in a lab-scale batch reactor. These experiments were used to test different thermochemical energy storage materials (TCM) and find the best available reaction system for the first scale-up step. Within the scope of task T2.1, there will be further investigation and optimising of the potential systems, and there will be a continued search for alternative systems to present the most suitable and final TCES reaction system in the report on deliverable 2.1 (M18).

Full content & Contact details

The full content of deliverable 2.2 is confidential.

For further information concerning this deliverable, please contact:

Prof. Andreas Werner
Technische Universität Wien
Department of Thermodynamics and Thermal Engineering
andreas.werner@tuwien.ac.at

Photos of a thermochemical batch reactor by Alfred Zacharias

The report on technology watch and market evaluation of the RESTORE project is the related to Task 6.2.1 – Technology watch. The first version of the report was published in deliverable 6.5, which will be updated in a 12-months period.

The main objectives of the report are:

• to give an overview about long term energy storage, concerning the concept of pumped thermal energy storage (PTES). Some considerations about the RESTORE concept, the architecture of the power cycle and organic working fluids are included. Furthermore the main players on the European market are listed.
• the technology watch, which can be subdivided into a patent- and a trademark-search, taking under consideration relevant literature and ongoing research activities.
• the market analysis, which consists of two major points:
  – the preparatory phase, comprising the identification of key exploitable results
  – the methodological approach to the market analysis, describing tools, a questionnaire and workshops

Full content & Contact details

The full content of Deliverable 6.5 is confidential.

For further information concerning this deliverable, please contact:

Lucia Hörner
Steinbeis Europa Zentrum
lucia.hoerner@steinbeis-europa.de