SLAGSTOCK European Project working meeting in the Paul Scherrer Institute (Switzerland)
A second working meeting took place in Switzerland on the 4th of May with main goal to follow up the developments related to an innovative thermal storage concept for the Concentrated Solar Power (CSP) applications, based on steel industry by-products; the steel slag.
The current Thermal Storage in CSP systems are based on molten salts, which have several limitations related to the reduced operation temperature, the high freezing point, the low thermal conductivity, the scarce world-wide availability and the high economic cost of such technology. The use of black steel slag as heat storage material seeks to overcome these technical drawbacks and to optimize the economic feasibility of these storing systems.
The SLAGSTOCK Project, framed in the European SOLAR ERA-NET Call, involves the participation of relevant companies, including CIC ENERGIGUNE Cooperative Research Centre, the PAUL SCHERRER Institute , the Steel Mill ARCELOR MITTAL Sestao, the Ceramic enterprise TELUS CERAM and the Technological Center IK4-AZTERLAN.
This meeting has allowed an assessment of different tasks and the results achieved during the first year of execution. The tank design and the thermal unit configuration (shape and size) has been already developed, selecting those parameters that show better operational results in terms of storage (charge) and utilization (discharge) of the captured solar energy.
The working team also visited the PSI facilities, focusing their attention to those equipments, prototypes and projects related to the development of solar thermal technology.
SLAGSTOCK Project working team in the Paul Scherrer Institute (Switzerland)