The influence of radiative transfer on the turbulent flow inside solar absorbers operating with supercritical CO2

Rene Pecnik, S.H.H.J. Smit, Ashish Patel, Dirk Roekaerts

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

156 Downloads (Pure)

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%.
Original languageEnglish
Title of host publicationProceedings of the 5th International Symposium - Supercritical CO2 Power Cycles
Number of pages16
Publication statusPublished - 2016
Event5th International Supercritical CO2 Power Cycles Symposium - San Antonio, Texas, United States
Duration: 29 Mar 201631 Mar 2016

Conference

Conference5th International Supercritical CO2 Power Cycles Symposium
CountryUnited States
CitySan Antonio, Texas
Period29/03/1631/03/16

Fingerprint Dive into the research topics of 'The influence of radiative transfer on the turbulent flow inside solar absorbers operating with supercritical CO<sub>2</sub>'. Together they form a unique fingerprint.

Cite this