TY - GEN
T1 - NUMERICAL STUDY OF SOLAR RECEIVER TUBE WITH MODIFIED SURFACE ROUGHNESS FOR ENHANCED AND SELECTIVE ABSORPTIVITY IN CONCENTRATED SOLAR POWER TOWER
AU - Hatcher, Shawn
AU - Farias, Mathew
AU - Li, Peiwen
AU - Li, Jianzhi
AU - Xu, Ben
N1 - Publisher Copyright: Copyright © 2023 by ASME.
PY - 2023
Y1 - 2023
N2 - Concentrated solar power (CSP) is a reliable renewable energy source that is progressively lowering its cost of energy. However, the heat loss due to reflected and emitted radiation hinders the maximum achievable thermal efficiency for solar receiver tubes on the solar tower. Current solar selective coatings cannot withstand the high temperatures that come with state-of-the-art CSP towers often needing to be recoated soon after initial operation. We intend to use Inconel 718 with different additive manufacturing (AM) practices to construct surfaces that allow for more light-trapping to occur. By adjusting printing parameters, we can tailor a surface to allow for more absorption while diminishing emitted radiation heat loss. By using COMSOL Multiphysics, we can generate these theoretical surfaces to emulate a printed surface, and using the coupled Multiphysics we can simulate how the surface dictates radiation properties. Our results show that by having a rougher surface we can enhance the absorptivity of Inconel 718 (IN718) by 38.8%. We expect this work to transform how solar absorber tubes are manufactured without using selective coatings and supplement the US Department of Energy (DOE) 2030 SunShot Initiative.
AB - Concentrated solar power (CSP) is a reliable renewable energy source that is progressively lowering its cost of energy. However, the heat loss due to reflected and emitted radiation hinders the maximum achievable thermal efficiency for solar receiver tubes on the solar tower. Current solar selective coatings cannot withstand the high temperatures that come with state-of-the-art CSP towers often needing to be recoated soon after initial operation. We intend to use Inconel 718 with different additive manufacturing (AM) practices to construct surfaces that allow for more light-trapping to occur. By adjusting printing parameters, we can tailor a surface to allow for more absorption while diminishing emitted radiation heat loss. By using COMSOL Multiphysics, we can generate these theoretical surfaces to emulate a printed surface, and using the coupled Multiphysics we can simulate how the surface dictates radiation properties. Our results show that by having a rougher surface we can enhance the absorptivity of Inconel 718 (IN718) by 38.8%. We expect this work to transform how solar absorber tubes are manufactured without using selective coatings and supplement the US Department of Energy (DOE) 2030 SunShot Initiative.
KW - Additive Manufacturing
KW - Concentrated Solar Power (CSP)
KW - Multiphysics Simulation
KW - Solar Receiver Tube
KW - Solar Tower
KW - Surface Roughness
UR - http://www.scopus.com/inward/record.url?scp=85176732713&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85176732713&partnerID=8YFLogxK
U2 - 10.1115/es2023-106936
DO - 10.1115/es2023-106936
M3 - Conference contribution
T3 - Proceedings of ASME 2023 17th International Conference on Energy Sustainability, ES 2023
BT - Proceedings of ASME 2023 17th International Conference on Energy Sustainability, ES 2023
PB - American Society of Mechanical Engineers
T2 - ASME 2023 17th International Conference on Energy Sustainability, ES 2023
Y2 - 10 July 2023 through 12 July 2023
ER -