Work Package 4
Description of work
The work in WP4 is broken down into 3 tasks:
4.1 Test Facilities (DLR, BUHL, IMDEA, PSI, USIEGEN, m07 – m15)
- Specification of operating conditions for the experimental investigation
- Hydroxide reaction system requires temperatures up to 600°C and pressures up to 3 bars
- Mn based oxide reaction system requires temperatures up to 1200°C and pressures up to 10 bars
- Layout of the test setups for both reaction systems:
- Specification of feed supply, gas/water pre-conditioning unit, reactor, gas cooling system, and gas analysis system offering the possibility to vary temperature, pressure and feed flow to the reactor
- Specification of control system and variables to be measured and logged
- Establishment of a PFD and PID
- Built-up of the test facilities
4.2 Lab-scale Reactor (DLR, BUHL, IMDEA, PSI, USIEGEN, m07 – m18)
- Fabrication of small-scale reactor (10 W) for investigation with macroscopic samples (i.e. pellets comprising different sizes and forms)
- Conceptual layout of the 100 W lab-scale reactors
- Design of the reactors
- Decision on construction materials to be used
- Creation of 3d drawings
- Safety analysis of the reactors
- Fabrication of the reactors (by internal workshop and/or external supplier)
- Integration into the test setups and commissioning
4.3 Performance in Lab-scale (DLR, BUHL, IMDEA, PSI, USIEGEN, m19 – m30)
- Small-scale reactor:
- Chemical kinetics taking mass diffusion and heat transfer within the macroscopic sample in account and comparison with TGA measurements
- Testing of stability and degradation as well as influence of impurities by periodic reference measurements
- Basic testing for validation of simulation model
- Extensive performance testing
- Evaluation of the influence of the most important operating parameters for different material inserts
- Evaluation of charging and discharging behaviour, reachable power levels and heat transfer characteristics
Long-term testing including investigation of the stability of the material and degradation effects by periodic reference measurements