Dataset for: Modular High-Temperature Geopolymer Thermal Energy Storage: Experimental Validation and 3D Modeling

This dataset supports the manuscript entitled “Modular High-Temperature Geopolymer Thermal Energy Storage: Experimental Validation and 3D Modeling”. It includes raw thermocouple temperature measurements from the pilot-scale 3 × 3 modular geopolymer thermal energy storage (GeoTES) prototype during two consecutive charging–discharging cycles, as well as numerical outputs from the transient 3D heat-conduction model used to reproduce the thermal response of the modular assembly. The dataset contains experimental source data for the reported thermal histories and simulation outputs supporting the figures and analysis presented in the manuscript.