A comparison of experimental heat transfer characteristics for Al sub(2)O sub(3)/water and CuO/water nanofluids in square cross-section duct
The present paper is a comparison between heat transfer characteristics of Al sub(2)O sub(3)/water and CuO/water nanofluids through a square cross-section cupric duct in laminar flow under uniform heat flux. Sometimes because of pressure drop limitations the need for noncircular ducts arises in many...
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Veröffentlicht in: | International communications in heat and mass transfer 2010-08, Vol.37 (7), p.924-928 |
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creator | Nassan, Taofik H Heris, SZeinali Noie, SH |
description | The present paper is a comparison between heat transfer characteristics of Al sub(2)O sub(3)/water and CuO/water nanofluids through a square cross-section cupric duct in laminar flow under uniform heat flux. Sometimes because of pressure drop limitations the need for noncircular ducts arises in many heat transfer applications, and a testing facility has been constructed for this purpose and experimental studies were performed on both nanofluids under different nanoparticles concentrations in distilled water as a base fluid. The results indicate that a considerable heat transfer enhancement has been achieved by both nanofluids compared with base fluid. However, CuO/water nanofluid shows better heat transfer augmentation compared with Al sub(2)O sub(3)/water nanofluid through square cross-section duct. |
doi_str_mv | 10.1016/j.icheatmasstransfer.2010.04.009 |
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subjects | ALUMINUM OXIDE COMPOSITES COPPER OXIDE Cross sections Ducts Fluid dynamics FLUID FLOW FLUIDITY HEAT TRANSFER LAMINAR FLOW MICROSTRUCTURES Nanocomposites Nanofluids Nanomaterials Nanostructure WATER |
title | A comparison of experimental heat transfer characteristics for Al sub(2)O sub(3)/water and CuO/water nanofluids in square cross-section duct |
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