Print Email Facebook Twitter The influence of radiative transfer on the turbulent flow inside solar absorbers operating with supercritical CO2 Title The influence of radiative transfer on the turbulent flow inside solar absorbers operating with supercritical CO2 Author Pecnik, Rene (TU Delft Energy Technology) Smit, S.H.H.J. (Student TU Delft) Patel, A. (TU Delft Energy Technology) Roekaerts, D.J.E.M. (TU Delft Fluid Mechanics) Date 2016 Abstract In this paper we investigate and compare two dierent solar receiver technologies for concentrated solar power plants operating with supercritical CO2. The rst receiver is based on conventional surface absorbers, while the second receiver is based on an innovative idea to use volumetric receivers where sunlight is transmitted through a transparent pipe and directly absorbed by nanoparticlesdispersed in supercritical CO2. The optical properties of the nanoparticles and the CO2 at high pressures and temperatures have been rst estimated and then used in a Navier-Stokes solver that has been coupled to a radiative transfer solver. The results indicate that for temperatures up to 700C the volumetric receiver achieves thermal collector eciencies up to 65% as compared tosurface receivers with 50%. To reference this document use: http://resolver.tudelft.nl/uuid:478725ee-cfce-4c89-add4-8d9778d81ddc Source Proceedings of the 5th International Symposium - Supercritical CO2 Power Cycles Event 5th International Supercritical CO2 Power Cycles Symposium, 2016-03-29 → 2016-03-31, San Antonio, Texas, United States Part of collection Institutional Repository Document type conference paper Rights © 2016 Rene Pecnik, S.H.H.J. Smit, A. Patel, D.J.E.M. Roekaerts Files PDF 021paper.pdf 6.3 MB Close viewer /islandora/object/uuid:478725ee-cfce-4c89-add4-8d9778d81ddc/datastream/OBJ/view