TY - RPRT TI - Modeling and Experimental Validation of a Direct-Contact Counter-Flow Fluidized Bed Heat Exchanger for Thermal Energy Storage (TES) Applications AU - Ashraf, Muhammad Mubashar [National Laboratory of the Rockies, Golden, CO (United States)] AU - Gifford, Jeffrey [National Laboratory of the Rockies, Golden, CO (United States)] (ORCID:0000000259090325) AU - Shah, Munjal Purnkant [National Laboratory of the Rockies, Golden, CO (United States)] (ORCID:0000000261206016) AU - Jeong, Shin Young [University of Central Florida] AU - Martinek, Janna [National Laboratory of the Rockies, Golden, CO (United States)] AU - Hirschey, Jason [National Laboratory of the Rockies, Golden, CO (United States)] (ORCID:0000000332906811) AU - Untaroiu, Alexandrina [Virginia Tech] AU - Ma, Zhiwen [National Laboratory of the Rockies, Golden, CO (United States)] (ORCID:0000000337188038) PY - 2026 DO - 10.1016/j.icheatmasstransfer.2026.112026 UR - https://www.osti.gov/biblio/3409113 ID - 3409113 ER -