Investigation on influence of antimony tin oxide/silver nanofluid on direct absorption parabolic solar collector

Sreekumar, Sreehari; Joseph, Albin; Kumar, C.S. Sujith; Thomas, Shijo

doi:10.1016/j.jclepro.2019.119378

Cited by 64 publications

(23 citation statements)

References 42 publications

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“…In particular, studies have focused on four-wave interactions and the self-action of light waves [ 7 , 8 , 9 , 10 ]. Without detailed knowledge of the optical properties of nanofluids, it is impossible to create next-generation solar collectors [ 11 , 12 , 13 , 14 , 15 ]. For example, [ 16 ] summarized the results of studies on the nanocolloids of ionic liquids (i.e., ionic liquids with nanoparticles in suspension), which can be directly applied to convective heat transfer.…”

Section: Introductionmentioning

confidence: 99%

Appearance of a Solitary Wave Particle Concentration in Nanofluids under a Light Field

et al. 2021

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In this study, the nonlinear dynamics of nanoparticle concentration in a colloidal suspension (nanofluid) were theoretically studied under the action of a light field with constant intensity by considering concentration convection. The heat and nanoparticle transfer processes that occur in this case are associated with the phenomenon of thermal diffusion, which is considered to be positive in our work. Two exact analytical solutions of a nonlinear Burgers-Huxley-type equation were derived and investigated, one of which was presented in the form of a solitary concentration wave. These solutions were derived considering the dependence of the coefficients of thermal conductivity, viscosity, and absorption of radiation on the nanoparticle concentration in the nanofluid. Furthermore, an expression was obtained for the solitary wave velocity, which depends on the absorption coefficient and intensity of the light wave. Numerical estimates of the concentration wave velocity for a specific nanofluid—water/silver—are given. The results of this study can be useful in the creation of next-generation solar collectors.

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Section: Introductionmentioning

confidence: 99%

Appearance of a Solitary Wave Particle Concentration in Nanofluids under a Light Field

et al. 2021

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“…Further, many researchers have focused on the experimental determination or simulation of the optical properties of Ag morphologies for the application of plasmonic nanoparticles to solar applications. [45][46][47] Recently, a novel DASC concept based on "Rayleigh-Bénard convection" was introduced and tested under solar simulator conditions considering ZrC and TiN based dispersion in base fluids like water and synthetic oils. 48,49 For practical applications of such concepts, reverse illumination could be achieved by using reflective surfaces, eliminating the need of additional energy and tracking mechanism.…”

Section: Nano-fluid Laden Direct Absorption Solar Collectormentioning

confidence: 99%

“…Qin et al 44 suggested that four‐edge star shape Ag nanoparticles could achieve a broad absorption curve on solar spectrum. Further, many researchers have focused on the experimental determination or simulation of the optical properties of Ag morphologies for the application of plasmonic nanoparticles to solar applications 45–47 …”

Section: Introductionmentioning

confidence: 99%

Thermal performance analysis of a novel direct absorption solar collector augmented solar still using silver nanofluids

Kumar

Chander

Singh

2022

Env Prog and Sustain Energy

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Solar desalination is a viable alternative for clean water for the areas where plenty of sunshine is available throughout the year. Due to less productivity of distilled water in passive solar still, it is still a challenge for the researchers to commercialize this low-cost renewable technology. In the last decade, much effort has been made by researchers to improve the overall productivity of solar stills by expanding novel active system methods. For the work presented here, a novel nanofluid-laden reverse-irradiated direct absorption solar collector (RI-DASC) augmented active solar still is proposed and tested under laboratory conditions for the very first time. Ag nanoparticles of sizes ~5-10 nm were used to prepare the nanofluids and were used as working fluid in the RI-DASC system. The system transfers the heat to the basin of active solar still directly omitting the need of piping arrangement. Experiments were conducted under different ambient conditions and for different mass loadings of Ag nanoparticles, that is, 0.1 mg L À1 , 0.2 mg L -1 , and 0.4 mg L À1 in RI-DASC augmented active solar still. The results showed that the temperature difference between the top glass cover and the basin of solar still was significantly higher in novel active solar compared to the conventional single slope passive still. Ag nanofluids with a mass fraction of 0.4 mg L À1 lead to a maximum temperature rise and thus overall thermal efficiency over other tested Ag nanofluids. The novel DASC augmented active solar still is practically viable using reflectors and can enhance the freshwater productivity over a conventional solar still.

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“…ATO (Antimony Tin Oxide) nanofluid is very suitable for these requirements. Many researchers have studied its characteristics [25,26] which could provide reference for this study. There are many literatures about the preparation method and spectral characteristics of ATO nanofluid.…”

Section: Selection Of Nanofluidsmentioning

confidence: 99%

Investigating the performance of a novel solar lighting/heating system using spectrum-sensitive nanofluids

Shen

Wei

et al. 2020

Applied Energy

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Solar lighting is considered as a promising technique, which has huge potential in conserving energy and relaxing the residents. However, current solar lighting systems used a filter to allow only visible light to enter buildings, releasing all the other energy contained in the long wave of the solar into the surrounding air. Such practice leaded to low efficiency of solar energy utilization and high costs. In this paper, a solar lighting/heating system was developed which used a hollow lens filled with ATO nanofluid to separate the long wave and short wave of solar energy. A series of tests were conducted to explore the performance of system. Results indicated that under the test condition of Case 1 (0.025%/0.0001% ATO/Graphite nanofluid, 100 L/h flow rate), the light transmission efficiency was 19.5% which was comparable to that of current solar lighting systems, and the heat absorption efficiency was 25.35%. The heat energy collected by the such a system from June to August (three months) in the city of Harbin was about 466.4 MJ in per square meter of collection area. The volume concentration of nanofluids had great influence on both the light transmission efficiency and the heat absorption efficiency. The flow rate had little influence on the light transmission efficiency, but had great influence on the heat absorption efficiency of the system.

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Investigation on influence of antimony tin oxide/silver nanofluid on direct absorption parabolic solar collector

Cited by 64 publications

References 42 publications

Appearance of a Solitary Wave Particle Concentration in Nanofluids under a Light Field

Appearance of a Solitary Wave Particle Concentration in Nanofluids under a Light Field

Thermal performance analysis of a novel direct absorption solar collector augmented solar still using silver nanofluids

Investigating the performance of a novel solar lighting/heating system using spectrum-sensitive nanofluids

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