Numerical analysis and optimization of an indirectly irradiated solar receiver for a Brayton cycle

Baye A. Ndiogou, Ababacar Thiam, Cheikh Mbow, Pascal Stouffs and Dorothé Azilinon

Energy, 2019, vol. 166, issue C, 519-529

Abstract: This work presents the modeling and optimization of an indirectly irradiated solar receiver. A numerical model of the cavity-absorber block is put forward with the coupling of the net-radiation method using the infinitesimal areas and a CFD code. An iterative method with a relaxation factor made it possible to obtain the temperature distribution and the developed code was implemented in the form of UDF and used as boundary conditions in the CFD model of the absorber to simulate the flow of air and heat transfer. The good ability of the receiver to transfer heat to the fluid is proved with a 92% thermal efficiency obtained. Then the combination of the Kriging surface response method and the MOGA allowed the mathematical optimization of the receiver. The response surface results showed that the most influencing parameter on the outlet temperature is porosity with 62%, due to the fact that it strongly impacts on the exchange surfaces between the fluid and the porous matrix. The results obtained by MOGA made it possible to obtain the best combinations of parameters allowing the temperature and the amount of energy to be maximized at the output of the receiver.

Keywords: CSP; Air solar receiver; Net-radiation method; CFD modeling; Response surface method optimization; MOGA (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544218319480
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:166:y:2019:i:c:p:519-529

DOI: 10.1016/j.energy.2018.09.176

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().