Experimental investigation of full solar spectrum utilization based on nanofluid spectral splitter for greenhouse applications

Yuan, Yirang; Hui, Fengming; Gang, Wu; Yang, Qichang; Ma, Qianlei; Ji, Yaning; Cheng, Rongjun; Zhang, Yi; Tong, Yuxin

doi:10.1016/j.enconman.2022.115215

Cited by 29 publications

(5 citation statements)

References 47 publications

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“…Another classic work is the design of a greenhouse planting system based on solar spectrum decomposition that simultaneously meets plant growth and cold period temperature requirements. [229] A nano-fluidic spectral decomposer was prepared using antimony-doped tin oxide and tungsten trioxide (WO 3 ) nanoparticles. The photothermal conversion efficiency reached 34.4%, and the annual heat energy was 358.9 kWh m −2 .…”

Section: Solar Heating For Agriculturementioning

confidence: 99%

Dynamical Janus‐Like Behavior Excited by Passive Cold‐Heat Modulation in the Earth‐Sun/Universe System: Opportunities and Challenges

Li,

Zhang,

et al. 2024

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The utilization of solar‐thermal energy and universal cold energy has led to many innovative designs that achieve effective temperature regulation in different application scenarios. Numerous studies on passive solar heating and radiation cooling often operate independently (or actively control the conversion) and lack a cohesive framework for deep connections. This work provides a concise overview of the recent breakthroughs in solar heating and radiation cooling by employing a mechanism material in the application model. Furthermore, the utilization of dynamic Janus‐like behavior serves as a novel nexus to elucidate the relationship between solar heating and radiation cooling, allowing for the analysis of dynamic conversion strategies across various applications. Additionally, special discussions are provided to address specific requirements in diverse applications, such as optimizing light transmission for clothing or window glass. Finally, the challenges and opportunities associated with the development of solar heating and radiation cooling applications are underscored, which hold immense potential for substantial carbon emission reduction and environmental preservation. This work aims to ignite interest and lay a solid foundation for researchers to conduct in‐depth studies on effective and self‐adaptive regulation of cooling and heating.

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Section: Solar Heating For Agriculturementioning

confidence: 99%

Dynamical Janus‐Like Behavior Excited by Passive Cold‐Heat Modulation in the Earth‐Sun/Universe System: Opportunities and Challenges

Li,

Zhang,

et al. 2024

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“…Forced convection induced by magnetic nanoparticles exhibits an increase in PTE due to the synergy of multicomponent nanomaterials. Yuan et al [167] developed a nanofluid-based spectrum splitter for greenhouse applications in which the unfavorable solar radiation that is not required by the plants would be absorbed by nanofluids (in the range of 800-1500 nm), and the remaining solar radiation (in the range of 300-800 nm) would be allowed to pass through. The photothermal conversion efficiency is 34.4% and the system yields 358.9 kWhm −2 .…”

Section: Nanofluids With Different Nanoparticle Sizesmentioning

confidence: 99%

“…Yuan et al [167] ATO-WO3/water • Very few works were reported on the efficiency improvement of DASCs using magnetic nanofluids with an externally applied magnetic field [77]. There is huge research potential on the phenomenon of thermomagnetic convection induced by direct absorption of solar radiation [178].…”

Section: Menbarimentioning

confidence: 99%

Broadband absorbing mono, blended and hybrid nanofluids for direct absorption solar collector: a comprehensive review

Sreekumar¹,

Shah²,

Mondol³

et al. 2022

Nano Futures

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The evolution of nanofluids over the years have opened new research opportunities in the field of renewable energy. Research on the optical properties of nanofluids for application in direct absorption solar collectors (DASCs) is progressing at a burgeoning speed. In a direct absorption solar collector system, nanofluid with high optical absorptivity will convert the incident solar energy to the thermal energy of the fluid. The dispersed nanoparticles in the fluid acts in the process by the phenomenon of absorption and scattering. Studies conducted on the optical property characterization of monocomponent nanofluids have become saturated. Moreover, the photothermal efficiency of the nanofluid could be enhanced by using multicomponent nanofluids. Nanofluid prepared by varying materials, shapes, and size of nanoparticles could tune the absorption spectra of the bulk fluid to improve the photothermal efficiency. A hybrid nanocomposite can similarly enhance the absorptivity due to the synergy of materials present in the nanocomposite particle. In this review, a comprehensive survey on the synthesis and optical characterization of different blended and hybrid nanocomposite nanofluids have been performed. Besides, works on different mono nanofluids that have been studied over the years have been reviewed.

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“…A few studies recently investigated the potential of spectrum-selective nanofluids for greenhouse and building applications. Yuan et al [26] synthesized the ATO-WO 3 /water nanofluids, which have high transmittance (about 79.56% for an optical path of 10 mm) in the visible region and can absorb (about 66%) the infrared radiations. The results showed that the nanofluids could attain a photothermal conversion efficiency of 34.4% with a crop growth factor of 93.6%.…”

Section: Introductionmentioning

confidence: 99%

Spectrum splitting through CuS–ZnO/water hybrid nanofluid for agricultural greenhouse cooling applications: An experimental study

Sajid

Saghir

Dinçer

et al. 2023

J Therm Anal Calorim

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In the present work, CuS–ZnO/water hybrid nanofluids (in concentrations of 0.0025 mass% and 0.005 mass%) are synthesized using a two-step method with nanoparticles composition of 95% CuS and 5% ZnO. The optically tuned nanofluid filter on the agricultural greenhouse roof can reduce the cooling load by transmitting the visible spectrum and absorbing the near-infrared radiation in the solar spectrum. The size distribution of nanoparticles, stability and optical transmission of both concentrations in the visible and near-infrared regions are examined. Two hollow containers (i.e., ducts) with thicknesses of 4 mm and 8 mm are prepared. Each of these ducts is attached to a greenhouse unit and placed in front of a solar simulator. The experimental results reveal that applying CuS–ZnO nanofluid reduces the inside temperature of the greenhouse unit under all irradiance and ambient temperature ranges. The cooling system gains an average of 27.4% less heat from the greenhouse unit when the CuS–ZnO nanofluid flows through an 8 mm duct compared to no-fluid case (empty duct). The photothermal conversion efficiency of nanofluid is found to be higher than the one for water. The crop growth factor of 82.2% is obtained for 8 mm duct case, and the photosynthetic photon flux density inside the greenhouse unit is reduced without affecting the growth of many plants. Furthermore, the payback period of the nanofluid system (with 8 mm duct) is calculated as 0.42 years, and the application of optically tuned nanofluid can help reduce the cooling system's size and energy requirement for cooling.

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Experimental investigation of full solar spectrum utilization based on nanofluid spectral splitter for greenhouse applications

Cited by 29 publications

References 47 publications

Dynamical Janus‐Like Behavior Excited by Passive Cold‐Heat Modulation in the Earth‐Sun/Universe System: Opportunities and Challenges

Dynamical Janus‐Like Behavior Excited by Passive Cold‐Heat Modulation in the Earth‐Sun/Universe System: Opportunities and Challenges

Broadband absorbing mono, blended and hybrid nanofluids for direct absorption solar collector: a comprehensive review

Spectrum splitting through CuS–ZnO/water hybrid nanofluid for agricultural greenhouse cooling applications: An experimental study

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