Radiative heat transfer in solar thermochemical particle reactor: A comprehensive review

Wang, Fuqiang; Ma, Longhua; Cheng, Ziming; Tan, Jianyu; Xing, Huaizhong; Liu, Linhua

doi:10.1016/j.rser.2017.01.165

Cited by 63 publications

(7 citation statements)

References 122 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[48,49] Many studies had been reported that convection, conduction, and radiation losses limited the temperature of the thermal absorber at high temperature. [50,51,52] The TE was enclosed in an insulating layer to inhibit conduction and convection heat losses. The transparent silica aerogel had high transmittance in solar spectrum, low emissivity in mid infrared and low thermal conductivity.…”

Section: Methodsmentioning

confidence: 99%

Full-Spectrum Solar Energy Utilization and Enhanced Solar Energy Harvesting via Photon Anti-Reflection and Scattering Performance Using Nanophotonic Structure

Liang¹,

Wang²,

Cheng³

et al. 2020

ES Energy Environ.

View full text Add to dashboard Cite

Conventional Si photovoltaic cells cannot convert full solar energy spectrum (400~2 500 nm) into electricity owing to the mismatch between Si band gap and broad range of solar photon energies. Transparent silicon PV cell allows sunlight in the wavelength of 1 100~2 500 nm to transmit through itself and irradiate on the thermal absorber below. The traditional photon management method based on texturing silicon layer with nanostructures can enhance 400~1 100 nm absorptivity and 1 1002 500 nm transmittance of transparent silicon PV cell. However, an increase in charge carrier capture and a decrease in electricity generation efficiency are often observed with this. In this study, a novel spectral splitting method based on frontlocated wavelength-sized TiO 2 biomimetic moth-eye nanophotonic structure is put forward, which can inhibit the increase of charge carrier capture and recombination. The biomimetic moth-eye nanophotonic structure was optimized by using finitedifference time-domain (FDTD) method to achieve excellent photon anti-reflection and scattering properties. The calculation results indicated that the absorption factor and transmission factor of transparent silicon PV cell could be increased from 46% to 58% and from 11% to 14%; the relative power conversion efficiency enhancement rate and relative incident radiation power enhancement rate was 32% and 27% when the TiO 2 biomimetic moth-eye was adopted.

show abstract

Section: Methodsmentioning

confidence: 99%

Full-Spectrum Solar Energy Utilization and Enhanced Solar Energy Harvesting via Photon Anti-Reflection and Scattering Performance Using Nanophotonic Structure

Liang¹,

Wang²,

Cheng³

et al. 2020

ES Energy Environ.

View full text Add to dashboard Cite

show abstract

“…Initially (solar‐based process), the endothermic solar thermal dissociation of M x O y to the metal or the lower‐valence metal oxide occurred. Then, in exothermic nonsolar‐based process, the metal hydrolysis is performed to form hydrogen and the corresponding metal oxide . The starting compounds ( M x O y ) in Equation are regenerated and applied again in Equation ; hence, thermochemical process is a cycle.…”

Section: Concentrated Solar Thermal Hydrogen Productionmentioning

confidence: 99%

“…Then, in exothermic nonsolar-based process, the metal hydrolysis is performed to form hydrogen and the corresponding metal oxide. 53 The starting compounds (M x O y ) in Equation (1) are regenerated and applied again in Equation (2); hence, thermochemical process is a cycle. Since the hydrogen/oxygen production occurred in two various steps, gas separation process is not required.…”

Section: Thermochemical Water Splitting Technologies For Solar Hydrmentioning

confidence: 99%

Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

2020

View full text Add to dashboard Cite

Summary Solar energy is going to play a crucial role in the future energy scenario of the world that conducts interests to solar‐to‐hydrogen as a means of achieving a clean energy carrier. Hydrogen is a sustainable energy carrier, capable of substituting fossil fuels and decreasing carbon dioxide (CO2) emission to save the world from global warming. Hydrogen production from ubiquitous sustainable solar energy and an abundantly available water is an environmentally friendly solution for globally increasing energy demands and ensures long‐term energy security. Among various solar hydrogen production routes, this study concentrates on solar thermolysis, solar thermal hydrogen via electrolysis, thermochemical water splitting, fossil fuels decarbonization, and photovoltaic‐based hydrogen production with special focus on the concentrated photovoltaic (CPV) system. Energy management and thermodynamic analysis of CPV‐based hydrogen production as the near‐term sustainable option are developed. The capability of three electrolysis systems including alkaline water electrolysis (AWE), polymer electrolyte membrane electrolysis, and solid oxide electrolysis for coupling to solar systems for H2 production is discussed. Since the cost of solar hydrogen has a very large range because of the various employed technologies, the challenges, pros and cons of the different methods, and the commercialization processes are also noticed. Among three electrolysis technologies considered for postulated solar hydrogen economy, AWE is found the most mature to integrate with the CPV system. Although substantial progresses have been made in solar hydrogen production technologies, the review indicates that these systems require further maturation to emulate the produced grid‐based hydrogen.

show abstract

“…When the solid particles absorb the incoming solar radiation to reach the high temperature, the absorbed heat is subsequently transferred to the working fluid through the convective heat transfer and the other particles via the radiative heat transfer, as well as the contact heat transfer. Among the process of the whole heat transfer within the receivers, the radiative heat transfer is fundamental to the thermal performance of the fixed-bed PSRs [13]. On the one hand, the thermal process of the PSR is derived by incoming solar radiation, and the thermal performances (e.g., maximum operating temperature, thermal efficiency) are determined by the absorption performances (or penetration depth) of the irradiation inside the PSRs.…”

Section: Introductionmentioning

confidence: 99%

A Review of Radiative Heat Transfer in Fixed-Bed Particle Solar Receivers

Dai,

Huangfu,

Wang

et al. 2023

Sustainability

View full text Add to dashboard Cite

A highly efficient receiver is required because re-radiation loss increases dramatically with increased working temperature. Among a large number of receivers, the fixed-bed Particle Solar Receiver (PSR) represents a new pathway to high temperature with maximum overall thermal efficiency. The incoming solar radiation can penetrate deeper into the fixed-bed PSR filled with semi-transparent quartz and ceramic particles (spheres or Raschig rings), resulting in an increased volumetric effect. Reports show that an optimized PSR can realize overall receiver efficiency of around 92% at outlet temperatures above 1000 K, and achieve the annual temperature above 1000 K over 65% annual operating hours integrated with a concentrated solar power (CSP) system. To fully understand radiative heat transfer characteristics and provide deep insight into thermal efficiency, radiation energy is classified as incident solar radiation and radiative heat exchange in two parts. The transfer mechanism, the solution method and the progress of the investigation for each section are summarized and discussed in detail. Then, challenges and future directions, including an innovative design method, an improved experimental approach and an effective simulation method are proposed to put forward this receiver to be a preferred substitute in advanced, high-temperature power cycles.

show abstract

Radiative heat transfer in solar thermochemical particle reactor: A comprehensive review

Cited by 63 publications

References 122 publications

Full-Spectrum Solar Energy Utilization and Enhanced Solar Energy Harvesting via Photon Anti-Reflection and Scattering Performance Using Nanophotonic Structure

Full-Spectrum Solar Energy Utilization and Enhanced Solar Energy Harvesting via Photon Anti-Reflection and Scattering Performance Using Nanophotonic Structure

Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

A Review of Radiative Heat Transfer in Fixed-Bed Particle Solar Receivers

Contact Info

Product

Resources

About