Application of thermal lens technique to measure the thermal diffusivity of biodiesel blend

Sadrolhosseini, Amir Reza; Noor, A. S. M.; Mehdipour, Lotf Ali; Noura, Amin; Mahdi, Mohd Adzir

doi:10.1007/s10043-015-0063-z

Cited by 8 publications

(5 citation statements)

References 12 publications

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“…The thermal lens signal is proportional to the thermal time constant (t c ), and refractive index gradient (θ) with temperature. Hence, the experimental data were analyzed using Equation 21, and the main parameters such as θ and t c were achieved by Equation (9) as a minimum root square algorithm [49].…”

Section: Resultsmentioning

confidence: 99%

“…The double beam thermal lens setup was used to measure the thermal diffusivity of Pt-NPs/GO composite. The set up ( Figure 14) contains a He-Ne laser ( 632.8 nm and 0.5 mW, model: R-31003, Newport, Irvine, CA, USA), a high-power solid-state laser (532 nm at 80 mW, model: LRS-0532, Laserglow Technology, Toronto, Canada) two lenses, a beam splitter, a silicon detector (model: 818-SL, Newport, Irvine, CA, USA), chopper (Stanford research, RS540, Sunnyvale, CA, USA) and the Lock-in amplifier [49]. The solid-state laser and He-Ne laser were used as an excitation light and as a probing beam, respectively.…”

Section: Thermal Lens Setupmentioning

confidence: 99%

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Optical and Thermal Properties of Laser-Ablated Platinum Nanoparticles Graphene Oxide Composite

Sadrolhosseini

Habibiasr

Shafie

et al. 2019

IJMS

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Platinum nanoparticles were synthesized in graphene oxide aqueous solution using a laser ablation technique to investigate the effect of optical linear, nonlinear and thermal properties of platinum-graphene oxide nanocomposite solution. The samples were prepared with different ablation times. The platinum nanoparticles that formed a spherical shape on the surface of graphene oxide solution were authenticated using UV-visible spectrum and transmission electron microscopy patterns. The particle size decreased with increasing ablation time, and the concentration and volume fraction of samples were increased. To obtain the optical linear, nonlinear and thermal properties of platinum-graphene oxide nanocomposite solution, UV-visible spectroscopy, Z-scan, thermal lens and photoacoustic techniques were used. Consequently, the linear and nonlinear refractive indices increased with an increase in the volume fraction of platinum nanoparticles. It was observed from the spatial self-phase modulation patterns that, the optical nonlinear property of the graphene oxide was enhanced in the presence of platinum nanoparticles, and the nonlinearity increased with an increase in the volume fraction of platinum nanoparticles inside the graphene oxide solution. The thermal diffusivity and thermal effusivity of platinum nanoparticles graphene oxide were measured using a thermal lens and photoacoustic methods, respectively. The thermal diffusivity and thermal effusivity of samples were in the range of 0.0341 × 10−5 m2/s to 0.1223 × 10−5 m2/s and 0.163 W s1/2 cm−2 K−1 to 0.3192 W s1/2 cm−2 K−1, respectively. Consequently, the platinum enhanced the optical and thermal properties of graphene oxide.

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Section: Resultsmentioning

confidence: 99%

Section: Thermal Lens Setupmentioning

confidence: 99%

Optical and Thermal Properties of Laser-Ablated Platinum Nanoparticles Graphene Oxide Composite

Sadrolhosseini

Habibiasr

Shafie

et al. 2019

IJMS

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“…The brief steps on the CD algorithm are depicted in the following. py q j^→ 1 p = σ t^j^+ ∑ i^q i^w g i^, j^ (11) (iii) Analyse the hidden states q from the probabilities py q . (iv) Evaluate the vector's exterior product p and py q , state that as a positive gradient φ + = p .…”

Section: Deep Belief Network-based Bio-diesel Blend Modellingmentioning

confidence: 99%

“…In recent times, the biodiesel extracted from non-edible feedstock has attained thrust because of the broad range of economic benefits, availability, environment friendliness and non-dependency on food crops. The core challenge in the biodiesel blend [11][12][13][14] usage is because of its bad oxidative stability. The oxygen that is present in the atmosphere reacts with the biodiesel [15,16] and generates caustic carboxylic acids and vaporisable compounds by which the engine components get damaged.…”

Section: Introductionmentioning

confidence: 99%

Modelling of biodiesel blend using optimised deep belief network: blending waste cooking oil methyl ester with tyre pyrolysis oil

Ganitha

Ganesan

Sengottuvelu

2020

IET Renewable Power Generation

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“…This is a simple, precise, sensitive, and contactless approach that works with both low volume and low absorptivity samples [5][6][7]. This technique was used for the diffusivity calculations of dyes [7,8], nanofluids [9][10][11][12][13], nanoparticle-dye samples [3,[14][15][16], biodiesel blends [17], DNA-dye samples [18], magneto-optical crystals [19] etc. Pharmacological application of the thermal lens technique was studied by swapna et.al.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of solvent effect on the heat transfer characteristics of 4-[(4-aminophenyl)-(4-imino-1-cyclohexa-2,5-dienylidene) methyl] aniline hydrochloride – A concentration based study

Pathrose,

Nampoori,

Mujeeb

2024

MoEM

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The thermal diffusivity calculations of 4-[(4-aminophenyl)-(4-imino-1-cyclohexa-2,5-dienylidene) methyl] aniline hydrochloride were made for four distinct concentrations of dye dissolved in three solvents. The number of dye aggregates at higher concentrations produce more random collisions. Because of this, heat diffusion will be slower and a reduced thermal diffusivity value was observed. Due to the increased number of dye molecules, cluster formation can also occur at higher concentrations which further reduces the thermal transport through the media. Fourier-transform infrared spectroscopy (FTIR) showed the vibrational bonds of the dye in the three solvents. The dye dissolved in acetone showed higher diffusivity as compared to the other two solvents. Our studies revealed that thermal diffusivity of the dye under study is strongly solvent dependent as well as concentration dependent. The dye under study could be effectively used as insulators or heat sinks with proper choice of concentration and solvent.

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Application of thermal lens technique to measure the thermal diffusivity of biodiesel blend

Cited by 8 publications

References 12 publications

Optical and Thermal Properties of Laser-Ablated Platinum Nanoparticles Graphene Oxide Composite

Optical and Thermal Properties of Laser-Ablated Platinum Nanoparticles Graphene Oxide Composite

Modelling of biodiesel blend using optimised deep belief network: blending waste cooking oil methyl ester with tyre pyrolysis oil

Experimental study of solvent effect on the heat transfer characteristics of 4-[(4-aminophenyl)-(4-imino-1-cyclohexa-2,5-dienylidene) methyl] aniline hydrochloride – A concentration based study

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