|About this Abstract
|MS&T23: Materials Science & Technology
|Additive Manufacturing: Design, Materials, Manufacturing, Challenges and Applications
|Co-designing and LPBF Additive Manufacturing of Complex Thermo-fluidic Components of Concentrating Solar-Thermal Power Plants - A Comprehensive Study of Printing Heat Exchangers and Solar Receivers
|Junwon Seo, Nicholas Lamprinakos, Erfan Rasouli, Ines-Noelly Tano, Austin Marshall, Daniel Satko, Subbarao Raikar, Ansel August Blumenthal, Andrea Ambrosini, Owen Hildreth, Ayman Salem, Vinod Narayanan, Anthony D. Rollett
|On-Site Speaker (Planned)
Concentrating solar power (CSP) plants are comprised of multiple components with complex geometries, such as heat exchangers and solar receivers, that directly affect the efficiency of power generation. Additive manufacturing can increase the efficiency and energy density of these parts by allowing more flexibility in the design. We demonstrate laser powder bed fusion (LPBF) additive manufacturing of molten salt-to-supercritical CO2 heat exchangers and supercritical CO2 solar thermal receivers out of nickel-based superalloys, where we optimize the designs and processes to maximize thermo-fluidic performance while ensuring successful printing and durability during operation. We discuss our strategies to reduce the variability in microstructure and surface morphologies between components in our fabricated geometries that inevitably appear due to discrepancies in thermal history during fabrication and heat treatment. Furthermore, the variability between different models of printers is discussed to ensure the reproducibility of our printed components.