Characterization of Solar-Aged Porous Silicon Carbide for Concentrated Solar Power Receivers

被引：10

作者：

Canadas, Inmaculada ^{[1
]}

Candelario, Victor M. ^{[2
]}

De Aloysio, Giulia ^{[3
]}

Fernandez, Jesus ^{[4
]}

Laghi, Luca ^{[3
]}

Cuesta-Lopez, Santiago ^{[5
]}

Chen, Yang ^{[6
]}

Marrow, T. James ^{[6
]}

Rinaldi, Antonio ^{[7
]}

Mariblanca Sanchez, Ana ^{[8
]}

Tati, Angelo ^{[7
]}

Testani, Claudio ^{[9
]}

机构：

[1] CIEMAT PSA Almeria, Mat Concentrating Solar Thermal Technol Unit, Tabernas 04200, Spain

[2] LiqTech Ceram AS, Ind Pk 22C, DK-2750 Ballerup, Denmark

[3] CertiMaC Soc Cons Arl, I-48018 Faenza, Italy

[4] CIEMAT PSA Almeria, Point Focus Concentrating Solar Thermal Technol U, Tabernas 04200, Spain

[5] Fdn ICAMCyL, Ctr Int Mat Avanzados & Materias Primas Castilla, Leon 24009, Spain

[6] Univ Oxford, Dept Mat, Oxford OX1 2JD, England

[7] ENEA, Sustainabil Dept, I-00196 Rome, Italy

[8] UNE, Assoc Espanola Normalizac, Madrid 28004, Spain

[9] Consorzio CALEF CO ENEA CR Casaccia SM Galeria, I-00123 Rome, Italy

来源：

MATERIALS | 2021年 / 14卷 / 16期

基金：

欧盟地平线“2020”; 英国工程与自然科学研究理事会;

关键词：

silicon carbide; accelerated ageing; non-destructive testing; computed tomography; ultrasonic; thermal diffusivity; thermal conductivity; concentrated solar power plants; DETERMINING THERMAL-DIFFUSIVITY; FLASH METHOD; TEMPERATURE; ABSORBERS; FOAMS;

D O I：

10.3390/ma14164627

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Porous silicon carbide is a promising material for ceramic receivers in next-generation concentrated solar power receivers. To investigate its tolerance to thermal shock, accelerated ageing of large coupons (50 x 50 x 5 mm) was conducted in a solar furnace to investigate the effects of thermal cycling up to 1000 degrees C, with gradients of up to 22 degrees C/mm. Non-destructive characterization by computed X-ray tomography and ultrasonic inspection could detect cracking from thermal stresses, and this informed the preparation of valid specimens for thermophysical characterization. The effect of thermal ageing on transient thermal properties, as a function of temperature, was investigated by using the light-flash method. The thermophysical properties were affected by increasing the severity of the ageing conditions; thermal diffusivity decreased by up to 10% and specific heat by up to 5%.

引用

页数：19

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