Experimental investigation on the thermal conductivity of Triethylene Glycol-Water-CuO nanofluids as a desiccant for dehydration process

International Journal of Nano Dimension

مقاله 9، دوره 11، شماره 1، فروردین 2020، صفحه 74-87   

نوع مقاله: Reasearch Paper

نویسندگان

Mohammad Javad Zarei¹؛ Peyman Keshavarz^{* 2}؛ Mohammad mahdi Zerafat¹؛ Samad Sabbaghi^{1، 3}

¹Faculty of Advanced Technologies, NanoChemical Engineering Department, Shiraz University, Shiraz, Iran.

²Chemical Engineering Department, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran.

³Visiting Professor, Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada.

چکیده

Liquid desiccants such as glycols are used in dehydration process, among which Triethylene Glycol (TEG) is considered as a common choice. The addition of nanoparticles to TEG as the base fluid is one of the prevalent method to improve thermal properties of TEG. In this study, an experimental investigation was performed on thermal conductivity of TEG-based nanofluids with 20 and 40 nm diameter copper oxide (CuO) nanoparticles analyzed at different conditions. Thermal conductivity was measured using a Decagon thermal analyzer (KD₂ Pro Model) in the 20 ^°C-60 ^°C temperature range, and also 0.1- 0.9 wt.% range. The experimental results showed that thermal conductivity of the nanofluid enhances with temperature increasing. In addition, thermal conductivity of nanofluids increased with nanoparticle concentration in both cases of 20 and 40 nm nanoparticles. The highest enhancement was also ~ 13.5%, for the nanofluid with 20 nm nanoparticles at 60 ^°C and a 0.9 wt.% concentration.

کلیدواژه‌ها

CuO Nanoparticle؛ Dehydration؛ Nanofluid؛ Thermal conductivity؛ Triethylene Glycol

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