A novel in-situ β-Sialon/Si3N4 ceramic used for solar heat absorber

Wu, Jianfeng; Zhang, Yaxiang; Xu, Xin; Lao, Xinbin; Li, Kun; Xu, Xiaoyang

doi:10.1016/j.ceramint.2015.07.080

Cited by 18 publications

(12 citation statements)

References 25 publications

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“…Specific properties of ceramic materials are required to be used as solar receivers. They are required to have (1) high thermal conductivity to enhance the heat transfer to the fluid and to limit internal gradients; (2) appropriate optical behaviour to maximize the absorption of solar flux; (3) low expansion coefficient that minimizes deformations, fracture toughness and creep resistance; and (4) higher corrosion and oxidation resistance [12].…”

Section: Ceramics For Solar Receiversmentioning

confidence: 99%

“…Recently, solar energy with its sustainable feature is being considered as a clean environmental source of energy that can be a solution for the imminent climatic crisis. Solar energy can be applied as a simple source of energy that could produce as much as 7 % of the global electricity by 2030 and 25 % by 2050 with the appropriate technologies to obtain high photothermal conversion efficiency [1].…”

Section: Introductionmentioning

confidence: 99%

“…Concentrating solar power (CSP) is one of the oldest technologies between solar thermal technologies which has been developed rapidly for the solar energy field [1]. Four CSP technologies are available at present as appears in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…An important type of CSP is SPT also known as the central receiver system (CRS) since it has low heat loss, high concentration ratio, high efficiency, and simple system [1]. It uses a field of sun-tracking reflectors called heliostats which are flat or slightly concave mirrors that reflect and concentrate the sun rays onto a central receiver placed at the top of a fixed tower [3].…”

Section: Introductionmentioning

confidence: 99%

“…The central receiver also known as a heat absorber or solar receiver is one of the most important parts of STPP because the efficiency of the whole system is decided based on the working temperature of receiver [1]. In the solar receiver, a heat transfer fluid (HTF) is used to absorb heat and transfer it to heat exchangers which operate a steam Rankine power cycle.…”

Section: Introductionmentioning

confidence: 99%

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Sialon-based Composites for Solar Receivers: An overview

El-Maddah

El‐Amir

Ewais

et al. 2021

International Journal of Materials Technology and Innovation

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Engineering non-oxide ceramics have recently been implied in many advanced applications based on their high temperature capability, outstanding strength, and low fabrication cost. As solar energy has become an economic trend and a clean source of energy; the utilization of ceramic materials as solar receivers in a solar thermal system has been widely considered. Various ceramic materials have shown their ability as heat absorber material due to their oxidation resistance, bending strength, thermal conductivity, and solar absorptance. Ceramics as Si3N4 and SiC can be valuable solar receiver materials; however, due to the high sintering temperature required for Si3N4 and the non-oxidizing nature of SiC; modification of these ceramics with AIN, oxide materials, and other additives is required. One of the highly promising trials that have proved its ability in a solar thermal system is modifying Si3N4 with Al2O3 and AIN that typically results in developing sialon-based ceramics. The latter materials have modified the flaws in many solar receiver ceramics as they have lower sinterability, lower fabrication cost, and easier densification compared to other solar receiver materials. The present work is an overview of the ceramic materials and composites applied as solar receivers, in addition to the characteristics required for the selected material "sialons" and the previous work achieved in this field. OriginalityThis review article could be a guide for scientists and engineers concerned with developing higher efficiency of the solar thermal system by utilizing ceramic materials as solar receivers. It produces a quick and comprehensive view of the characteristics and properties required to select a ceramic material with high efficiency, and present the previous works implied at this point with further explanation of their data. Such an overview can be a starting database for developing a solar receiver ceramic material that avoids the flaws in the previous researches which can be a forward step in the renewable energy field.

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Section: Ceramics For Solar Receiversmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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