Graphene Nanopowder and Propylene Glycol Solutions: Thermal and Physical Properties

Sekhar, G. Chandra; Thimothy, P.; Surakasi, Raviteja; Khan, Nadeem A.; Zahmatkesh, Sasan

doi:10.1007/s13369-023-07952-0

Cited by 4 publications

(3 citation statements)

References 42 publications

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“…With the assistance of such an ultrasonic probe sonicator, 0.25 and 0.5 weight percent of graphene nanoparticles are uniformly distributed throughout the intended solutions. The nanofluids are checked for agglomeration of fluids for 15 days and it is found that after 15 days PG (100%) shown best stability and remain doesn't show much stability and the properties are also best for PG (100%) when compared to other fluids when dispersed with graphene nanopowder [25]. Figure 1 displays the nanofluid samples that have been created.…”

Section: Preparation Of Base Fluids and Nanofluidsmentioning

confidence: 99%

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Evaluation of electrical properties of graphene nanopowder-dispersed propylene glycol-water solutions

et al. 2023

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Nanofluids, which are suspensions of nanoparticles in base fluids, have gained significant attention in recent years due to their enhanced thermal and electrical properties. In particular, propylene glycol-water nanofluids have been extensively investigated for their electrical properties. The primary goal of this study is to evaluate the electrical characteristics of nanofluids containing graphene powder distributed in propylene glycol-water. Compositions containing 100:0, 75:25, as well as 50:50 of Propylene Glycol as well as Water were created, along with other nano fluids. Both types of base fluids were infused with graphene at quantities of 0.25 as well as 0.5 percent, respectively. The assessment of electrical characteristics in nanofluids includes the analysis of parameters like breakdown voltage, permittivity, resistivity, and electrical conductivity. With the increase in the diameter there is an increase in the value of resistivity with the dispersion of graphene nano powder whereas breakdown voltage, permittivity and electrical conductivity have been decreased with the increase in the diameter. Overall with the dispersion of graphene in nano powder the electrical properties have been enhanced. Furthermore, it discusses the underlying mechanisms and provides insights into potential applications of propylene glycol-water nanofluids in electrical and electronic systems.

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Section: Preparation Of Base Fluids and Nanofluidsmentioning

confidence: 99%

“…The electrical conductivity of a propylene glycol sample doped with different concentrations of graphene nano particles is shown as a function of diameter in figure 4(a) [25] compares thermal conductivity values to electrical conductivity values. The electrical conductivity noticeably drops down with increasing diameter.…”

Section: Electrical Conductivitymentioning

confidence: 99%

Evaluation of electrical properties of graphene nanopowder-dispersed propylene glycol-water solutions

et al. 2023

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“…This investigation made use of four different models, and the accuracy and reliability of their output was evaluated with the use of charts and other metrical representations. The best model from among these models is selected for further examination [21,22]. After that, the model that was selected is put to use in order to have a conversation about the optimization of nano uid viscosity, which ultimately results in the nding of optimum viscosity values.…”

Section: Introductionmentioning

confidence: 99%

Response surface approach of Propylene Glycol and Water (75:25)/Graphene+MWCNT nanofluid viscosity

Surakasi,

Manyala,

2024

Preprint

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Response surface methodology (RSM) was used to study a Propylene Glycol-water nanofluid. The nano powder content was varied to make three PG + W (75:25) samples. Graphene and MWCNT nano particles were blended in base fluids at 0.25% and 0.5% using four-ball milling. Temperature decreases viscosity, and the combination PG + W (75:25) + 0.5% G + MWCNT has the lowest viscosity at 0.32 m2/s. The laboratory parameters in this study include a 40–120 ◦C temperature range and a 0 to 0.5% weight percentage. Finding the best prediction model and solution is the goal. The statistical-mathematical investigation of modelers' performance, contrast, and motives and the inconsistency between laboratory behaviour and real-world applications prompted this study. Some tested models are 2FI, quadratic, cubic, and quartic. Analysis of these modelling functions' statistical properties is a novel contribution to the area. Statistical research shows that the cubic model depicts nanofluids twice as accurately as other models. The R2 coefficient, C.V%, and P-value are used to evaluate models. The cubic model indices are 0.9936, 3.54%, and 0.0001. At 109.661 C, nanofluids should have 0.401 m2/sec viscosity and 0.278 weight percentage.

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Investigation of the Dielectric Behaviour of Propylene Glycol (100) Dispersed With Graphene Nano Powder to Determine the Optimal Conditions Using Response Surface Methodology

Surakasi,

Pakalapati,

Manyala

2024

Qeios

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Response surface methodology (RSM) was used to study the dielectric behavior of a Propylene Glycol-Graphene Nanopowder nanofluid. This study used 3-11 mm distance and 2.77-3.13 kV breakdown voltage. The goal is to find the best prediction model and solution. The lack of consistency between laboratory behavior and real-world applications and the statistical-mathematical investigation of modelers' performance, contrast, and motives prompted this study. Two models are tested: linear and 2FI. Investigating and evaluating these modeling functions' statistical properties is new to the area. The 2FI model depicts nanofluids twice as accurately as other models, according to statistical analysis. Model evaluation indicators include R2, C.V%, and P-value. In order, the 2FI model indices are 0.9818, 8.74 %, and 0.0001. Nanofluids should have 1256.877 electrical conductivity at 11 mm and 2.77 kV breakdown voltage.

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Graphene Nanopowder and Propylene Glycol Solutions: Thermal and Physical Properties

Cited by 4 publications

References 42 publications

Evaluation of electrical properties of graphene nanopowder-dispersed propylene glycol-water solutions

Evaluation of electrical properties of graphene nanopowder-dispersed propylene glycol-water solutions

Response surface approach of Propylene Glycol and Water (75:25)/Graphene+MWCNT nanofluid viscosity

Investigation of the Dielectric Behaviour of Propylene Glycol (100) Dispersed With Graphene Nano Powder to Determine the Optimal Conditions Using Response Surface Methodology

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