Comparative performance evaluation of fly ash-based hybrid nanofluids in microchannel-based direct absorption solar collector

Summary This study aims to thermodynamic analysis and optimizes the performance of a nanofluid‐based direct absorption parabolic trough collector (DAPTC) using a non‐dominated sorting genetic algorithm (NSGA‐II). For this purpose, silicon carbide (SiC) and copper oxide (CuO) at three different volume fractions (0.01%, 0.05%, and 0.1%) are used as the nanoparticles and water as the base fluid. The results obtained using the method presented in the current study are verified through experimental results, which are in good agreement with those. A comprehensive analysis is conducted to determine the effect of operating conditions and geometric dimensions on the energy and exergy efficiencies and economic performance of the DAPTC. In addition, an environmental investigation is performed to determine the effect of using nanofluids on CO2, NOx, and SOx reduction. Under the operating conditions, the cost of energy production, when SiC/water and CuO/water nanofluids are utilized instead of the base fluid, is reduced by 31.08% and 47.92%, respectively. The use of SiC/water and CuO/water nanofluids can reduce CO2 emissions by 216.18 and 332.55 kg and also water consumption by 968.1 and 1489.1 m3, respectively. The optimum energy and exergy efficiencies are 65.53% and 38.97%, respectively. Also, the SiC/water and CuO/water nanofluids have a 35% and 67.35% environmental impact, respectively. Highlights Multi‐objective optimization of a DAPTC using the NSGA‐II algorithm. The energy, exergy, economic, and environment of solar collectors were analyzed. The 547.86 MJ energy and 1489.1 m3 water were saved by the exploitation of CuO/water nanofluid. The 316.15 MJ energy and 968.1 m3 water were saved by the exploitation of SiC/water nanofluid. CO2 emissions decreased by 332.55 and 216.18 kg using CuO/water and SiC/water.

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“…In Table 3, the thermal properties of SiC and CuO nanoparticles are presented. The thermophysical properties of nanofluids including

(ρ_{nf}),

({normalC}_{normalp}_{nf}),

(λ_{nf}),

39 and

(μ_{nf})

27 are obtained via Equations ()‐(). Their suspension stability has also been examined in 24 …”

Section: The Daptc Specification Of This Study and Methodologymentioning

confidence: 99%

Multi‐objective assessment of a DAPTC based on 4E analysis: Water‐energy‐environment nexus

Saray

Heyhat

2022

Intl J of Energy Research

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“…The influence of volume flow rate (1–5 L/h) and mixing ratio (0:100–100:0) of different HNFs (DW-based Al 2 O 3 -fly ash and SiO 2 -fly ash with φ = 2 vol%) employed as working fluids in a microchannel-based DASC on the energy and exergy performance was carried out by Thakur et al [ 120 ]. The authors reported that increasing the volume flow rate enhanced thermal efficiency, pumping power, PEC, EGR, and exergy efficiency.…”

Section: Solar Energy Application Of Hybrid Nanofluidsmentioning

confidence: 99%

Experimental Exploration of Hybrid Nanofluids as Energy-Efficient Fluids in Solar and Thermal Energy Storage Applications

et al. 2023

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In response to the issues of environment, climate, and human health coupled with the growing demand for energy due to increasing population and technological advancement, the concept of sustainable and renewable energy is presently receiving unprecedented attention. To achieve these feats, energy savings and efficiency are crucial in terms of the development of energy-efficient devices and thermal fluids. Limitations associated with the use of conventional thermal fluids led to the discovery of energy-efficient fluids called “nanofluids, which are established to be better than conventional thermal fluids. The current research progress on nanofluids has led to the development of the advanced nanofluids coined “hybrid nanofluids” (HNFs) found to possess superior thermal-optical properties than conventional thermal fluids and nanofluids. This paper experimentally explored the published works on the application of HNFs as thermal transport media in solar energy collectors and thermal energy storage. The performance of hybrid nano-coolants and nano-thermal energy storage materials has been critically reviewed based on the stability, types of hybrid nanoparticles (HNPs) and mixing ratios, types of base fluids, nano-size of HNPs, thermal and optical properties, flow, photothermal property, functionalization of HNPs, magnetic field intensity, and orientation, and φ, subject to solar and thermal energy storage applications. Various HNFs engaged in different applications were observed to save energy and increase efficiency. The HNF-based media performed better than the mono nanofluid counterparts with complementary performance when the mixing ratios were optimized. In line with these applications, further experimental studies coupled with the influence of magnetic and electric fields on their performances were research gaps to be filled in the future. Green HNPs and base fluids are future biomaterials for HNF formulation to provide sustainable, low-cost, and efficient thermal transport and energy storage media.

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“…2 Due to its small size and high load to capacity ratio, the heating rate reaches 2500 W.cm −2 . Improve the efficiency of heat transfer equipment rather than adding more heating elements 3 and supporting materials such as oil chillers 4 and cooling ducts, 5 which will result in a major rise in cost, 6 land congestion, 7 and environmental damage from exhaust gas emissions. 8 To achieve that goal, a much-needed alternative is to improve the coolant qualities, 7 which will be both economically and environmentally feasible by conserving energy.…”

Section: Introductionmentioning

confidence: 99%

Ecological optimization and LCA of TiO₂-SiC/ water hybrid nanofluid in a shell and tube heat exchanger by ANN

Malika

Sonawane

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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The current study estimates the environmental impact and cost model for the early-stage design of a shell and tube heat exchanger (STHE). Additionally, the lifecycle analysis (LCA) compares the effects of use of nanofluid in the chemical processing industry to increase the effectiveness of the heat transfer to the typical STHE system. Nanofluids increase heat transfer, as evidenced by the results of the experiments. The Nusselt number and pressure drop were both increased by roughly 65% and 8%, respectively, using 0.5 vol% of TiO2-SiC/water hybrid nanofluid compared to water as coolant. The ecological impact of STHE was estimated as s attribute of Ecological (EF) and total cost estimation function using artificial neural networks (ANN). Finally, the IdematLightLCA (2.8.6 version) software was used to calculate energy content, Carbon footprint, and cost over the lifespan of the baseline. The results show that nanofluid-based STHE has an average payback period considerably longer than typical coolant systems but saves superior economic value at the end of its lifetime. According to the findings, the suggested novel method is both cost-effective and environmentally feasible.

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Comparative performance evaluation of fly ash-based hybrid nanofluids in microchannel-based direct absorption solar collector

Cited by 55 publications

References 62 publications

Multi‐objective assessment of a DAPTC based on 4E analysis: Water‐energy‐environment nexus

Multi‐objective assessment of a DAPTC based on 4E analysis: Water‐energy‐environment nexus

Experimental Exploration of Hybrid Nanofluids as Energy-Efficient Fluids in Solar and Thermal Energy Storage Applications

Ecological optimization and LCA of TiO₂-SiC/ water hybrid nanofluid in a shell and tube heat exchanger by ANN

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Comparative performance evaluation of fly ash-based hybrid nanofluids in microchannel-based direct absorption solar collector

Cited by 55 publications

References 62 publications

Multi‐objective assessment of a DAPTC based on 4E analysis: Water‐energy‐environment nexus

Multi‐objective assessment of a DAPTC based on 4E analysis: Water‐energy‐environment nexus

Experimental Exploration of Hybrid Nanofluids as Energy-Efficient Fluids in Solar and Thermal Energy Storage Applications

Ecological optimization and LCA of TiO2-SiC/ water hybrid nanofluid in a shell and tube heat exchanger by ANN

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Product

Resources

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Ecological optimization and LCA of TiO₂-SiC/ water hybrid nanofluid in a shell and tube heat exchanger by ANN