Review of experimental investigation on directly irradiated particles solar reactors

Alonso, Elisa; Romero, Manuel

doi:10.1016/j.rser.2014.08.027

Cited by 117 publications

(74 citation statements)

References 55 publications

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“…The latter is capable of achieving much higher concentration ratios and hence higher temperatures, making it attractive for a wide variety of applications. Over the past decades, extensive effort has been placed on developing suitable receivers for solar energy capture [11][12][13]. However, the extreme conditions present at the focal point of such systems places very stringent requirements on the material properties.…”

Section: Introductionmentioning

confidence: 99%

The use of graphite foams for simultaneous collection and storage of concentrated solar energy

Badenhorst

Fox

Mutalib

2016

Carbon

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Graphite foams of varying composition and density were prepared using a low cost, local pitch material and expandable graphite for use in solar energy capture. The foams have a high degree of graphitization but exhibit a fine mosaic texture. A small oxidative treatment (6% mass loss) was necessary to fully open the foam pores. As the density is reduced a large decrease in the foam surface area was observed. Despite this, an increase in solar energy capture efficiency was measured due to increased circulation through the foam. By varying foam geometry and the concentration ratio it was demonstrated that the receiver size can be reduced by 75% at the same efficiency.The foam with the lowest density was used to test the thermal performance of a simultaneous energy capture and storage concept using a phase change material. The melting time of the phase change material is reduced by 46% whilst only reducing the energy storage density by 18%. In addition it was found that the foam composite resulted in more ideal phase transition behaviour due to the elimination of incongruent melting. The composite can effectively capture, store and discharge thermal energy, at a constant temperature, without any additional requirements.

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Section: Introductionmentioning

confidence: 99%

The use of graphite foams for simultaneous collection and storage of concentrated solar energy

Badenhorst

Fox

Mutalib

2016

Carbon

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“…Ho and Iverson (2014) have presented a review on high temperature central receiver design including particle receivers. Alonso and Romero (2015) have reviewed experiments with directly irradiated particles solar reactors used to perform gas-solid thermo-chemical reactions. The design of the falling-particle cavity receiver prototype developed at Sandia Albuquerque was described by Christian and Ho (2014).…”

Section: Introductionmentioning

confidence: 99%

On-sun demonstration of a 750 °C heat transfer fluid for concentrating solar systems: Dense particle suspension in tube

et al. 2015

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“…This paper aims to provide a review of the research area of numerical modelling of STRSs, outline the challenges unique to high-temperature STRS modelling, highlight the existing literature in the field and their attempts to overcome these hurdles, and guide the reader to relevant studies related to different material/-chemical processes and physical reactor configurations. The reader is also referred to the recent reviews of the areas of heat transfer within STRSs and experimental studies of them by Lipiń ski et al (2013) and Alonso and Romero (2015), respectively. Fig.…”

Section: Introductionmentioning

confidence: 99%

Modelling of solar thermochemical reaction systems

et al. 2017

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a b s t r a c tThis article reviews the progress, challenges and opportunities in numerical modelling of thermal transport, thermochemical reactions and thermomechanics in high-temperature solar thermochemical systems. Continuum-scale models are presented in mathematical detail while highlighting the literature that uses them. The discussion is enhanced by selected examples of numerical studies of solar thermochemical systems for solar fuels and commodity material production. Property predictions necessary for the modelling of solar thermochemical reaction systems are covered.

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Review of experimental investigation on directly irradiated particles solar reactors

Cited by 117 publications

References 55 publications

The use of graphite foams for simultaneous collection and storage of concentrated solar energy

The use of graphite foams for simultaneous collection and storage of concentrated solar energy

On-sun demonstration of a 750 °C heat transfer fluid for concentrating solar systems: Dense particle suspension in tube

Modelling of solar thermochemical reaction systems

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