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 nanoparticles
dispersed 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 to
surface receivers with 50%.
dispersed 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 to
surface receivers with 50%.
| Original language | English |
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| Title of host publication | Proceedings of the 5th International Symposium - Supercritical CO2 Power Cycles |
| Number of pages | 16 |
| Publication status | Published - 2016 |
| Event | 5th International Supercritical CO2 Power Cycles Symposium - San Antonio, Texas, United States Duration: 29 Mar 2016 → 31 Mar 2016 |
Conference
| Conference | 5th International Supercritical CO2 Power Cycles Symposium |
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| Country/Territory | United States |
| City | San Antonio, Texas |
| Period | 29/03/16 → 31/03/16 |