Thermophysical Characterization of Ceramic Materials for Next-Generation Solar Receivers

Laghi, Luca; Aloysio, Giulia De; Candelario, Victor M.; Kadrispahic, Haris; Ferrari, L.; Gianella, Sandro; Rinaldi, Antonio

doi:10.1109/eeeic/icpseurope49358.2020.9160740

Cited by 2 publications

(7 citation statements)

References 5 publications

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“…Table 4 summarizes the physical characteristics of the samples. Previous studies (see Reference [ 32 ] as an example) of the porous SiC analyzed in this paper found an average density of about 1800 kg/m 3 and a deviation of ca. 2.8% (about 50 kg/m 3 ) within the same production batch in the untreated condition.…”

Section: Resultsmentioning

confidence: 52%

“…On the basis of specific heat values available in the literature [ 31 ], a reference sample was built for these analyses. Over the whole temperature range, the specific heat values were evaluated and assigned to a sample obtained from the first non-aged slab, which is the reference sample as given in Reference [ 32 ]. The specific heat of each of the other samples was assessed by comparing its temperature rise with that of the reference sample, as detailed in References [ 32 , 33 ].…”

Section: Resultsmentioning

confidence: 99%

“…The post-analysis was carried out through the improved Cape–Lehman approach [ 29 , 30 ] using the Proteus ® Software (Selb, Germany), thus allowing two-dimensional heat flows, heat losses and radiation effects above 500 °C to be assessed. The specific heat,

was evaluated indirectly by means of reference samples and the literature tables [ 31 , 32 ]. In particular, on the basis of specific heat values available in the literature [ 31 ], a reference sample was built for these analyses.…”

Section: Methodsmentioning

confidence: 99%

“…In particular, on the basis of specific heat values available in the literature [ 31 ], a reference sample was built for these analyses. Over the whole temperature range, the specific heat values were evaluated and assigned to a sample obtained from the first non-aged slab, which is the reference sample, as in Reference [ 32 ]. Thus, the thermal conductivity, K(T) , was obtained via Equation (1), using the sample’s density,

which was determined by using the Archimedes method in deionized water.…”

Section: Methodsmentioning

confidence: 99%

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

Cañadas¹,

Candelario

Aloysio

et al. 2021

Materials

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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 × 50 × 5 mm) was conducted in a solar furnace to investigate the effects of thermal cycling up to 1000 °C, with gradients of up to 22 °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%.

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Section: Resultsmentioning

confidence: 52%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

which was determined by using the Archimedes method in deionized water.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

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

Cañadas¹,

Candelario

Aloysio

et al. 2021

Materials

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“…At the moment, no information is available on the thermal conductivity of the proposed design, i.e., on the thermal performance of the joint. Results of the lab-scale thermophysical characterization of the All-SiC by LiqTech and porous SiSiC by Engicer are summarized in [ 26 ]: the thermal diffusivity, specific heat, and thermal conductivity are provided and compared with the literature data available.…”

Section: Resultsmentioning

confidence: 99%

High-Performance SiC–Based Solar Receivers for CSP: Component Manufacturing and Joining

et al. 2021

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Concentrated solar power (CSP) is an important option as a competitive, secure, and sustainable energy system. At the moment, cost-effective solutions are required for a wider-scale deployment of the CSP technology: in particular, the industrial exploitation of CSP has been so far hindered by limitations in the materials used for the central receiver—a key component in the system. In this context, the H2020 NEXTOWER project is focused on next-generation CSP technologies, particularly on advanced materials for high temperatures (e.g., >900 °C) and extreme applications environments (e.g., corrosive). The research activity described in this paper is focused on two industrial solutions for new SiC ceramic receivers for high thermal gradient continued operations: porous SiC and silicon-infiltrated silicon carbide ceramics (SiSiC). The new receivers should be mechanically tough and highly thermally conductive. This paper presents the activity related to the manufacturing of these components, their joining, and characterization.

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Thermophysical Characterization of Ceramic Materials for Next-Generation Solar Receivers

Cited by 2 publications

References 5 publications

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

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

High-Performance SiC–Based Solar Receivers for CSP: Component Manufacturing and Joining

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