Synthesis, Characterization and Testing of Black Metal Oxide Nanoparticles as Solar Concentrator Receiver Material

Mahavar, Sunita; Khan, Mohammed Saquib; Yadav, Tejpal

doi:10.1016/j.matpr.2019.02.076

Cited by 4 publications

(6 citation statements)

References 21 publications

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“…For example, the two forms of cobalt oxides (CoO and Co3O4) are stable above 5000 °C. Cobalt oxide nanoparticles are highly recommended for electronic devices, electrochromic devices, solar absorbers at high temperature, gas sensing, magnetic materials, and energy storage batteries [3]. Beryllium oxide is a ceramic material with notably good thermal shock resistance and some desirable properties.…”

Section: Oxidesmentioning

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]. Increasing the power concentration of the tower develops very high temperatures, which in turn increases the efficiency of the converted heat into electricity and reduces the thermal storage cost.…”

Section: Introductionmentioning

confidence: 99%

“…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. Some commercial tower plants use direct steam generation (DSG) as a heat transfer fluid and molten salt as a storage medium [3].…”

Section: Introductionmentioning

confidence: 99%

“…2), where the absorbing material receives cold air and converts it into hot air. The absorbing material must have good oxidation resistance, high thermal shock resistance, and high solar absorptance due to the special operating conditions [3,5]. The efficiency of a CSP system depends on both, the concentrator solar convergence power and its heat absorbing efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…The efficiency of a CSP system depends on both, the concentrator solar convergence power and its heat absorbing efficiency. For that, an efficient absorber material is required [3].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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: Oxidesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The efficiency of a CSP system depends on both, the concentrator solar convergence power and its heat absorbing efficiency. For that, an efficient absorber material is required [3].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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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Design development of an economic solar paraboloidal concentrator for industrial process heat generation

Kumar

Mahavar

Mawire

et al. 2023

Energy Conversion and Management

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Enhanced Performance of Nickel–Cobalt Oxides as Selective Coatings for Flat-Plate Solar Thermal Collector Applications

Bacelis-Martínez,

Herrera-Zamora,

Ávila Santos

et al. 2023

Coatings

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Solar thermal collectors represent a practical option to capture energy from the sun, providing low-cost domestic and industrial heating and decreasing the dependency on fossil fuels. Spinel-type metal oxides show interesting physicochemical properties and so can be used as active materials for converting solar energy to electrical, chemical, and heat energy. We report the synthesis and characterization of nickel–cobalt mixed metal oxides used as an active phase in selective paints for solar absorber coatings applied to a domestic flat collector. The nickel–cobalt mixed oxides crystallized in the cubic phase related to the spinel structure, exhibiting good thermal stability and reproducibility. These mixed oxides presented oxidation states (2+ and 3+) for both nickel and cobalt. The coatings fabricated from the selective paints based on nickel–cobalt mixed oxides showed a solar absorptance value of 94%, while for the commercial paint Solkote®, the value was 93%. A representative coating based on the NiCo2O4 composition was evaluated for the first time in a domestic-type flat solar collector for water heating under real operating conditions, achieving an outstanding performance that competes with that of commercial collectors. The potential application of nickel–cobalt mixed oxides in solar collectors opens up new opportunities for future innovations and developments in functional absorber coatings.

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Synthesis, Characterization and Testing of Black Metal Oxide Nanoparticles as Solar Concentrator Receiver Material

Cited by 4 publications

References 21 publications

Sialon-based Composites for Solar Receivers: An overview

Sialon-based Composites for Solar Receivers: An overview

Design development of an economic solar paraboloidal concentrator for industrial process heat generation

Enhanced Performance of Nickel–Cobalt Oxides as Selective Coatings for Flat-Plate Solar Thermal Collector Applications

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