CERTH will be responsible for modelling activities of the system operation as a whole by performing dynamical simulations. The SOLINDARITY solution layout is shown below:
The figure shows the studied system, which integrates solar thermal (ST) collectors coupled with a thermal energy storage (TES) tank that uses water as a storage medium. The water stored in the TES tank is further heated from a waste heat recovery (WH) unit that is installed to exploit the high-temperature flue gases from the boiler. The water then supplies heat to an HTHP operating on a reverse air Brayton cycle. This design is part of the SOLINDARITY project under the EU Horizon program, aimed at efficiently upgrading heat in various industrial sectors.
The HTHP operates using a reverse Brayton cycle and consists of three heat exchangers (HEX), a compressor, and a turbine, with air serving as the working medium, as shown in Figure 1. The goal of the cycle is to increase the temperature of the air in HEX-3. To achieve this, the water heats the air in HEX-1. A recuperator (HEX-2) is used to further increase the temperature of the air in the cycle before it enters the compressor. After passing through HEX-3, the air flows through the turbine to generate power and returns to HEX-1. The compressor and turbine are connected by a shaft, which is electrically driven.
