Efficient integration of the Calcium-Looping process into Concd. Solar Power plants involves the endothermic calcination of CaCO3 in the solar receiver while the exothermic carbonation of CaO is carried out at high temp. under high CO2 partial pressure.
The optical absorption of the calcium-based materials plays a critical role in direct solar-thermal conversion for TCES. The key for directly capturing solar energy of Ca-based composites is to elaborately design such composites by altering their dielectric functions.
CO2 thermodn. cycles, calcium carbonate is a very promising candidate in storing energy for next-generation solar thermal power plants featured with high temp. over 700°C. However, CaCO3 particles are usually white with little absorption of sun light, inhibiting their application in efficient volumetric solar energy conversion systems.
Here we propose, for the first time, a novel strategy to directly absorb solar energy using calcium-based composite thermochem. energy storage (TCES) materials. The main novelty lies in the binary metallic element doping of the calcium-based raw materials to enhance their direct interactions with solar radiation photons for light capturing.
Calcium-Looping (CaL) is considered as a promising process for thermochem. energy storage in the 3rd generation Concd. Solar Power plants using a supercrit. carbon dioxide power cycle. Here we propose, for the first time, a novel strategy to directly absorb solar energy using calcium-based composite thermochem. energy storage (TCES) materials.
This potential leads to the self sustaining energy possibility fulfilling the electricity needs. Due to their unique electronic structures and high cost merit over the existing commercial PV technologies, perovskite solar cells (PSCs) have emerged as the next-generation photovoltaic candidate.