Location
Grand Rapids, Michigan
Start Date
14-5-2024 3:30 PM
End Date
14-5-2024 5:00 PM
Description
Use of Unconventional Fly Ash as Sensible Particulate Thermal Energy Storage Materials for Concentrating Solar Power Authors Ms. Megan Bellusci - United States - Western Washington University Ms. Kiana Oos - United States - Western Washington University Dr. Deborah Glosser - United States - Western Washington University Mr. Drew Johnson - United States - Western Washington University Dr. Prannoy Suraneni - United States - University of Miami Abstract Coal fly ash is an attractive alternative to sintered bauxite proppants for sensible thermal energy storage (TES) in high-temperature (HT) direct absorbing receiver concentrating solar power (CSP) technology. These waste materials are low-cost, low-carbon, and abundant, however, they can be highly variable and heterogeneous. We present the results of a characterization study of the optical and thermochemical properties of several unconventional fly ashes (either off-spec or reclaimed) which have been exposed to CSP operating conditions. We show how ash composition influences factors such as solar absorptance and specific heat capacity, and present results of experiments to optimize ash properties of HT TES. Study results show that reclaimed fly ashes are promising substrate material for solar thermal energy storage.
Document Type
Event
Assessment of Coal Fly Ash as a Thermal Energy Storage Material for Concentrating Solar Power
Grand Rapids, Michigan
Use of Unconventional Fly Ash as Sensible Particulate Thermal Energy Storage Materials for Concentrating Solar Power Authors Ms. Megan Bellusci - United States - Western Washington University Ms. Kiana Oos - United States - Western Washington University Dr. Deborah Glosser - United States - Western Washington University Mr. Drew Johnson - United States - Western Washington University Dr. Prannoy Suraneni - United States - University of Miami Abstract Coal fly ash is an attractive alternative to sintered bauxite proppants for sensible thermal energy storage (TES) in high-temperature (HT) direct absorbing receiver concentrating solar power (CSP) technology. These waste materials are low-cost, low-carbon, and abundant, however, they can be highly variable and heterogeneous. We present the results of a characterization study of the optical and thermochemical properties of several unconventional fly ashes (either off-spec or reclaimed) which have been exposed to CSP operating conditions. We show how ash composition influences factors such as solar absorptance and specific heat capacity, and present results of experiments to optimize ash properties of HT TES. Study results show that reclaimed fly ashes are promising substrate material for solar thermal energy storage.
