Thermal Shock Resistance of Commercial Oxide-Bonded Silicon Carbide Reticulated Foams under Concentrated Solar Radiation at PSA: A Feasibility Study

11 de setembro de 2024

<jats:p>Volumetric ceramic receivers can be regarded as a promising technology to heat air above 1000 °C for solar thermal electricity production. In this study, the thermal shock behavior of commercial 10 ppi (A) and 20 ppi (B) oxide-bonded silicon carbide (ob-SiC) reticulated porous ceramic (RPC) foams was evaluated using the SF60 solar furnace at Plataforma Solar de Almería. The foams were subjected to well-controlled temperature cycles ranging from 800 to 1000, 1200, 1300 or 1400 °C, for 25, 100, and 150 cycles. The extent of the damage after thermal shock was determined by crushing tests. The damage was found to be critically dependent on both the bulk density and cell size. Decreasing both the bulk density and cell size resulted in better thermal shock resistance. The B foam exhibited approximately half the stress degradation compared to the A foam when exposed to a temperature difference of 600 K (in the range of 800 to 1400 °C) and subjected to 150 cycles.</jats:p>

Autores da comunidade :

• 

  J

  José Jorge Lopes da Cruz Fernandes

  ist13458

  Afiliações e fontes

  IST > LAETA

  Laboratório Associado de Energia, Transportes e Aeronáutica

  IST > IDMEC

  Instituto de Engenharia Mecânica

  IST > DEM

  Departamento de Engenharia Mecânica

  IST > IDMEC > CPM

  Centro de Projecto Mecânico

  De: cienciavitae

  ID: 4703029

VoR - Versão publicada

MDPI AG

Inorganics

246

12

9

2304-6740

10.3390/inorganics12090246

materials-engineering - Engenharia dos Materiais

eng - Inglês

https://scholar.tecnico.ulisboa.pt/records/Az815hWdtiwl7WAIUeaU1k1RZSTDRY-CoCqO