Investigations on the Thermal and Electrical Conductivity of Polyethylene Glycol-based CuO and ZnO Nanofluids

Swaminathan Ponmani, Pawan Gupta, Prashant Sopanrao Jadhawar, R Nagarajan, Jitendra Sangwai (Corresponding Author)

Research output: Contribution to journalArticle

Abstract

In this experimental work, three different types of nanofluids were evaluated for their stability using dynamic light scattering (DLS) and particle morphological study using scanning electron microscopy (SEM). The nanofluids used in this study are zinc oxide (ZnO) nanoparticle in water and 5 wt% polyvinylpyrrolidone (PVP) as a dispersant, and ZnO with polyethylene glycol (PEG 600) and CuO with PEG 600 with 5wt% PVP at different concentration of 0.1, 0.3 and 0.5wt %. Thermal and electrical conductivities were determined by KD-2 Pro® and PC 700
Eutech®. The result shows better enhancement in the thermal and electrical conductivity in the ZnO+PVP+Water system, followed by the CuO+PVP+PEG and ZnO+PEG systems. The highest percentage enhancement in thermal conductivity found to be 35.5 % of ZnO+ PVP+water systems.
The thermal conductivity results were compared with a theoretical model and show good agreement with results predicted by the model. The proposed model of Nan et al. (1997) is based on a hypothesis regarding the physical mechanism in heat transfer for nanofluids. This study is expected to form the basis for the development of nanofluid-based technologies with PEG as the primary additive in the upstream oil and gas industry especially in gas hydrates and drilling
technology.
Original languageEnglish
JournalIndian Chemical Engineer
Publication statusAccepted/In press - 2 Oct 2019

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Zinc oxide
Polyethylene glycols
Thermal conductivity
Water
Gas hydrates
Gas industry
Dynamic light scattering
Electric Conductivity
Nanoparticles
Heat transfer
Scanning electron microscopy

Keywords

  • Electrical conductivity
  • Nanofluids
  • Stability
  • Thermal Conductivity
  • Nan's Model

Cite this

Investigations on the Thermal and Electrical Conductivity of Polyethylene Glycol-based CuO and ZnO Nanofluids. / Ponmani, Swaminathan; Gupta, Pawan; Jadhawar, Prashant Sopanrao; Nagarajan, R; Sangwai, Jitendra (Corresponding Author).

In: Indian Chemical Engineer, 02.10.2019.

Research output: Contribution to journalArticle

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AU - Gupta, Pawan

AU - Jadhawar, Prashant Sopanrao

AU - Nagarajan, R

AU - Sangwai, Jitendra

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N2 - In this experimental work, three different types of nanofluids were evaluated for their stability using dynamic light scattering (DLS) and particle morphological study using scanning electron microscopy (SEM). The nanofluids used in this study are zinc oxide (ZnO) nanoparticle in water and 5 wt% polyvinylpyrrolidone (PVP) as a dispersant, and ZnO with polyethylene glycol (PEG 600) and CuO with PEG 600 with 5wt% PVP at different concentration of 0.1, 0.3 and 0.5wt %. Thermal and electrical conductivities were determined by KD-2 Pro® and PC 700Eutech®. The result shows better enhancement in the thermal and electrical conductivity in the ZnO+PVP+Water system, followed by the CuO+PVP+PEG and ZnO+PEG systems. The highest percentage enhancement in thermal conductivity found to be 35.5 % of ZnO+ PVP+water systems.The thermal conductivity results were compared with a theoretical model and show good agreement with results predicted by the model. The proposed model of Nan et al. (1997) is based on a hypothesis regarding the physical mechanism in heat transfer for nanofluids. This study is expected to form the basis for the development of nanofluid-based technologies with PEG as the primary additive in the upstream oil and gas industry especially in gas hydrates and drillingtechnology.

AB - In this experimental work, three different types of nanofluids were evaluated for their stability using dynamic light scattering (DLS) and particle morphological study using scanning electron microscopy (SEM). The nanofluids used in this study are zinc oxide (ZnO) nanoparticle in water and 5 wt% polyvinylpyrrolidone (PVP) as a dispersant, and ZnO with polyethylene glycol (PEG 600) and CuO with PEG 600 with 5wt% PVP at different concentration of 0.1, 0.3 and 0.5wt %. Thermal and electrical conductivities were determined by KD-2 Pro® and PC 700Eutech®. The result shows better enhancement in the thermal and electrical conductivity in the ZnO+PVP+Water system, followed by the CuO+PVP+PEG and ZnO+PEG systems. The highest percentage enhancement in thermal conductivity found to be 35.5 % of ZnO+ PVP+water systems.The thermal conductivity results were compared with a theoretical model and show good agreement with results predicted by the model. The proposed model of Nan et al. (1997) is based on a hypothesis regarding the physical mechanism in heat transfer for nanofluids. This study is expected to form the basis for the development of nanofluid-based technologies with PEG as the primary additive in the upstream oil and gas industry especially in gas hydrates and drillingtechnology.

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