Title:
Tunable Thermal Properties of E-Conducting Concrete for Energy Conversion, Storage and Dissipation
Author(s):
Danoglidis
Publication:
Web Session
Volume:
ws_F23_Danoglidis_2.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/29/2023
Abstract:
The thermal storage and dissipation pathways in nanoengineered concrete were successfully modified and tuned by adjusting the nanocomposite materials’ conductivity and specific heat capacity. It is demonstrated that the intrinsic conductivity of 1D and 2D nanomaterials and the degree of their dispersion/exfoliation in concrete matrix are critical for controlling the thermal and electrical properties at the nano- and micro- level leading to fit-for-purpose energy conversion capacity. Increasing the thermal flow, i.e., thermal conductivity, while controlling the specific heat capacity using percolative networks of dispersed/exfoliated and highly conductive nanomaterials resulted in optimized thermal-to-electrical energy conversion efficiency values, as high as 100%. Maximizing the thermal energy storage of concrete while maintaining a high electrical conductivity by merging dispersed/exfoliated, highly conducting and insulating nanomaterials activates a synergistic action that enables high thermal-to-electrical energy conversion efficiency (thermoelectric figure of merit) for energy generation, storage and distribution in concrete battery technologies.