Air-based solar systems for building heating with PCM fluidized bed energy storage

The results of the simulation study conducted on the proposed air system show that the system can successfully supply a significant part of the heating requirements of a single-family house in locations with mild winter conditions, such as Barcelona and Madrid, where a TES containing between 1000 and 2000 kg of PCM achieves solar contributions of about 50%. For locations with more severe winter conditions, such as Zurich and Stockholm, very large storage capacities (up to 5000 kg of PCM) combined with large collector areas (20 m2) are required to meet between 20 and 25% of the house heating needs.