Heat transfer studies of Al2O3/water-ethylene glycol nanofluid using factorial design analysis

Periasamy, Srinivasan Manikandan; Dharmakkan, Nesakumar; Sumana, Nagamani Sumana

doi:10.2298/ciceq210125021m

Cited by 3 publications

(1 citation statement)

References 30 publications

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“…Study concluded that the thermal conductivities of nanoparticle-fluid mixtures increase significantly with the addition of nanoparticle and more studies on heat transfer in the fluid flow is needed to extract its maximum benefit. Experimental studies on thermal conductivity and heat transfer were done in a natural convection heat transfer apparatus [13,14] with a base fluid (Ethylene Glycol-Water Mixture) and observed significant enhancement in heat transfer coefficient as well as thermal conductivity. Heat transfer effect of Al2O3 nanoparticle with volume fractions of 0.25, 0.5, 0.75, and 1 vol.% was analyzed [15] and observed an increase in Nusselt number with respect to the Reynolds number and volume fraction.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer studies in a plate heat exchanger using Fe2O3-water-engine oil nanofluid

Periasamy¹,

Dharmakkan²,

Vishnu³

et al. 2023

CI&CEQ

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Improving heat transfer performance of conventional fluid creates significant energy savings in process Industries. In this aspect, experimental study was performed to evaluate the heat transfer performance of Fe2O3-Water (W)-Engine Oil (EO) nanofluid at different concentrations and different hot fluid inlet temperatures in a plate heat exchanger. Experiments were conducted by mixing Fe2O3 nanoparticle (45 nm) in a base fluid of water-engine oil mixture with volume fractions of 5%EO + 95%W and 10%EO +90%W. Main aim of the present study is to assess the impact of variations in nanoparticle volume fraction and hot fluid inlet temperature on the heat transfer performance of prepared nanofluid. Based on the experimental results, convective heat transfer coefficient, Reynolds, Prandtl and Nusselt number were determined. Result shows that at the hot fluid inlet temperature of 75?C, the increase in Nusselt number and convective heat transfer co efficient are optimum at 0.9 vol. % nanoparticle for both the base fluid mixtures. The increase in heat transfer coefficient is because of the Brownian motion (increasing thermal conductivity) effect, motion caused by temperature gradient (Thermo-phoretic) and motion due to concentration gradient (Osmophoretic). If the volume fraction of nanoparticle increases then Reynolds number increment is higher than Prandtl number decrement, which augments Nusselt number as well as convective heat transfer coefficient.

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Section: Introductionmentioning

confidence: 99%

Heat transfer studies in a plate heat exchanger using Fe2O3-water-engine oil nanofluid

Periasamy¹,

Dharmakkan²,

Vishnu³

et al. 2023

CI&CEQ

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A case study on analyzing the performance of microplate heat exchanger using nanofluids at different flow rates and temperatures

Dharmakkan¹,

Srinivasan²,

Muthusamy³

et al. 2023

Case Studies in Thermal Engineering

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Heat transfer performance of Al2O3-water-methanol nanofluid in a plate heat exchanger

Manikandan,

Chinnusamy,

Thangamani

et al. 2024

CI&CEQ

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One of the smallest and most efficient heat exchangers on the market is plate heat exchanger. The goal of this experiment is to assess the performance of methanol-water as a base fluid in a plate heat exchanger affects the heat transfer performance. For this study, Aluminium Oxide (Al2O3) nanoparticle was used in various ratios (0.25, 0.5, and 0.75 vol. %) in a base fluid (10 vol.% methanol & 90vol.% water) to prepare a nanofluid. At two different temperatures, such as 55and 60?C, with varying flow rates (2 to 8 lpm) and varying nanoparticle concentrations (0.25 to 0.75%), thermo physical characteristics and convective heat transfer studies were performed and the results are presented. Overall inference was that there was a notable enhancement in the hot side, cold side and overall heat transfer coefficient by the Al2O3 nanoparticle and methanol-water base fluid combination. It was noted that utilizing Al2O3/methanol-water nanofluid could significantly reduce the temperature gradient in the heat exchanger and improve the performance of heat exchangers. Maximum hot fluid coefficient of 4300 W/m2?C, cold fluid coefficient of 4600 W/m2?C and overall coefficient of 2200 W/m2?C were noted for 0.75 vol.% nanoparticle concentration and at a flow rate of 8 lpm.

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Heat transfer studies of Al2O3/water-ethylene glycol nanofluid using factorial design analysis

Cited by 3 publications

References 30 publications

Heat transfer studies in a plate heat exchanger using Fe2O3-water-engine oil nanofluid

Heat transfer studies in a plate heat exchanger using Fe2O3-water-engine oil nanofluid

A case study on analyzing the performance of microplate heat exchanger using nanofluids at different flow rates and temperatures

Heat transfer performance of Al2O3-water-methanol nanofluid in a plate heat exchanger

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