Energy, exergy and economic analysis of liquid flat-plate solar collector using green covalent functionalized graphene nanoplatelets

Kumar, Laveet; Kazi, S.N.; Masjuki, H.H.; Zubir, Mohd Nashrul Mohd; Jahan, Afrin; Bhinitha, C.

doi:10.1016/j.applthermaleng.2021.116916

Cited by 30 publications

(10 citation statements)

References 74 publications

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“…A comprehensive review of thermal performance of the solar collector by the addition of graphene in heat transfer fluid recorded by Mahamude et al [48] shows superior thermal performance. Various other studies on the thermal efficiency of the solar collector using graphene nanoplatelet-based heat transfer fluid shows an enhancement of ~24% at 0.1 wt% loading (Kumar et al [49]). A similar work done by Ahmadi et al [50] shows an increase in thermal efficiency of ~19% at 0.02 wt% graphene nanoplatelet loading in water as base fluid.…”

Section: Journal Of Nanomaterialsmentioning

confidence: 95%

A Review on Environmental and Economic Impact of 2D Nanomaterials‐Based Heat Transfer Fluids

Shaik

Goyal

et al. 2022

Journal of Nanomaterials

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2D nanomaterials-based heat transfer fluids show excellent thermal properties due to their large specific surface area; hence, they find large-scale applications in automobile industries and cooling processes. Therefore, it is very essential to study the environmental and economic aspects of these 2D nanomaterial-based nanofluids. In this review, we have discussed the environmental impact of 2D nanomaterial-based heat transfer nanofluids under various conditions. The environmental impact analysis of these materials has shown excellent capability in reducing the energy consumption for heat transfer operations. Moreover, the possibility of nanomaterials and base fluid recovery makes it a sustainable alternative. In addition, health risk assessment on humans, cytotoxicity, and life cycle analysis have also been explored. The price-performance index has been successfully used to study the economic impact of 2D nanomaterial-based heat transfer fluids. The overall economic impact of 2D nanomaterial-based heat transfer nanofluids provides an optimistic perspective over conventional heat transfer fluids. Moreover, graphene production, market trend, and commercialization obstacles were also discussed.

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Section: Journal Of Nanomaterialsmentioning

confidence: 95%

A Review on Environmental and Economic Impact of 2D Nanomaterials‐Based Heat Transfer Fluids

Shaik

Goyal

et al. 2022

Journal of Nanomaterials

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“…Similarly, 0.05% wt% MWCNT/water nanofluids used in a heat-pipe-evacuated tube solar collector and maximum thermal efficiency of 55% were achieved [3]. In another study, distilled-water-based graphene nanofluids were used in flat-plate solar collector and heat transfer enhancement of 24.09% was recorded for 0.1 wt% at flow rate of 1.5 L/min [4]. In a similar study, SWCNT/water nanofluids were utilized in an evacuated tube solar collector and thermal efficiency of 93.43% for 0.2 vol.% at 0.025 kg/s flow rate was recorded [5].…”

Section: Introductionmentioning

confidence: 92%

Characterization and Performance Analysis of Non-Metallic Oxide Nano-Fluids in Compound Parabolic Trough Solar Collectors

Kaleem

Ali

Riaz

et al. 2022

The 1st International Conference on Energy, Power and Environment

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Solar energy is a viable source to fulfill the energy demands of a solar rich country such as Pakistan. Various types of solar thermal technologies are being used around the world, including flat plate, evacuated tube, and compound parabolic trough collectors. However, the performance of these collectors is strongly influenced by the nature of work fluid. Utilization of nanofluids with high thermal conductivity is a very attractive way to further enhance the performance of solar collectors. Therefore, this study deals with the characterization and thermal performance enhancement of compound parabolic collectors (CPC) by using non-metallic nanofluids such as water-based multi-wall carbon nano tubes (H2O-MWCNT) with a thermal conductivity of 3000 W/m·K. In the current work, multiple tests are performed to analyze the thermal conductivity and stability of nanofluids through thermal analyzer and UV-Vis Spectroscopy, respectively. Test results show that the thermal conductivity of water-based MWCNT nanofluid is 37% higher than water at a concentration of 0.075%. Prepared nanofluids are then employed in CPC, and detailed experimentation is performed by varying the concentration of nanoparticles (0.025, 0.05, 0.075%) and their flow rate (0.015, 0.02 kg/s). Maximum temperature difference of 10.5oC with volumetric concentration of 0.075% is achieved in experimental analysis at flow rate 0.015 kg/s. Thermal efficiency enhancement of 19.37% with volumetric concentration 0.075% is recorded as compared to water at flow rate 0.015 kg/s.

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“…L. Harish [26] presented an investigation about the effects of using eco-friendly, noncorrosive, covalently functionalized Graphene nanoplatelets with gallic acid (GGNPs) as working fluid inside a flat plate solar collector. A nano-fluid consists of (GGNPs/water) with a weight concentrations (0.025%, 0.05%, 0.075% and 0.1%).…”

Section: The Use Of Nano-fluids Containing Carbon Compounds As Working Fluidsmentioning

confidence: 99%

Improving the Thermal Efficiency of Flat Plate Solar Collector Using Nano-Fluids as a Working Fluids: A Review

Kadhim

Ibrahim

2021

IJOIR

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Solar energy is one of the most important types of renewable energy and is characterized by its availability, especially in Iraq. It can be used in many applications, including supply thermal energy by solar collectors. Improving the thermal efficiency of solar collector leads to an increase in the thermal energy supplied. Using a nano-fluid instead of base fluid (water is often used) as a working fluid is a method many used to increase the thermal efficiency of solar collectors. In this article, the latest research that used nano-fluid as a working fluid in evaluating the thermal efficiency of solar collector, type flat plate was reviewed. The thermal efficiency improvement of flat plate solar collector was reviewed based on the type of nanoparticles (metal oxides, semiconductors oxides, carbon compounds) used in the base fluid and comparison was made between these nanoparticles under the same conditions. Moreover, the effect of varying the concentration of nanoparticles in the base fluid and changing the working fluid flow rate on the thermal efficiency of flat plate solar collector was also reviewed. The results of the review showed that nano-fluids containing carbon compounds are better than other nano-fluids and that copper oxide is better than the rest of the metal oxides used in improving the thermal efficiency of flat plate solar collectors.

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Energy, exergy and economic analysis of liquid flat-plate solar collector using green covalent functionalized graphene nanoplatelets

Cited by 30 publications

References 74 publications

A Review on Environmental and Economic Impact of 2D Nanomaterials‐Based Heat Transfer Fluids

A Review on Environmental and Economic Impact of 2D Nanomaterials‐Based Heat Transfer Fluids

Characterization and Performance Analysis of Non-Metallic Oxide Nano-Fluids in Compound Parabolic Trough Solar Collectors

Improving the Thermal Efficiency of Flat Plate Solar Collector Using Nano-Fluids as a Working Fluids: A Review

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