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Experimental study of natural convective heat transfer of water-ZrO2 nanofluids in vertical sub channel
Umar E.a, Kamajaya K.a, Tandian N.P.b
a Center for Applied Nuclear Science and Technology, BATAN, Bandung, 40132, Indonesia
b Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, 40116, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2015 Efrizon Umar et al.The conventional technique for increasing heat dissipation is to increase the surface area for exchanging heat with a heat transfer fluid. However, the conventional enhanced surface technique has reached their limit with regard to improving heat transfer. Meanwhile, a performance of the convective heat transfer depends on the characteristics of the heat transfer fluid. Therefore, researches on nanofluids heat transfer are innovative ways to find alternative heat transfer fluid (coolants) with better performances. This paper presents an experimental study on natural convective heat transfer of water-ZrO2 nanofluids in a triangular and rectangular array of uniformly heated vertical cylinders with pitch to diameter ratio (P/D) of 1.16. The nanofluids were used in this experiment is a colloidal water-ZrO2 and the concentration of nano particles in the solution used by 0.05 %. The study seeks for a new correlation for natural convective heat transfer of water-ZrO2 nanofluids in the vertical sub channel formed among the triangular and rectangular vertical cylinders. Based on the current experimental study, the natural convective heat transfer equation for water-ZrO2 nanofluids in the triangular and rectangular sub channel that depends on the position was obtained. The equation can be written as.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Nanofluids,Natural convection heat transfer,Thermal conductivity,Vertical sub channel[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.12988/ces.2015.511302[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]