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Measurement of biomaterial capillary wick of heat pipe using micro-CT scan
Nugraha P.F.a, Putra N.a, Latief F.D.E.b
a Heat Transfer Laboratory, Department of Mechanical Engineering, Universitas Indonesia, Kampus Ui, Depok, 16424, Indonesia
b Physics of Earth and Complex Systems, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, 40132, 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]© 2020 Author(s).In recent years, the use of capillary wick in heat pipe technology for various thermal management system has been growing rapidly. The capillary wick itself has the important role for improving the heat pipe performance. It can be made from a variety of materials, such as biomaterial in the form of coral (corallia encrusting). Before being applied, the capillary wick must be tested first through a series of conventional measurement methods to determine the heat pipe performance later. The purpose of this study is to measure its parameters i.e. porosity, permeability, and capillary pumping based on micro-CT scan and digital image processing. The results from conventional measurement showed that the biomaterial wick sample had varied permeability values ranging from 8.01071 mm2, 8.53188 mm2, 1.12424×10-4 mm2, and 1.6631×10-4 mm2, as well as porosity values of 7.8%, 8.3%, 33.12%, and 33.5%. Meanwhile, the results from micro-CT scan showed that its porosity values were 10.64% and 37.8%. Kozeny-Carman equation was used to determine the permeability based on porosity result from micro-CT scan. The calculated corresponding wick permeability reached the value of 9.76 m2 and 1.68×10-4 m2, while its maximum capillary pumping rate were 0.047 g/s, 0.031 g/s, 0.104 g/s, and 0.127 g/s. The differences of both results from conventional measurement and micro-CT scan were in the range of ±5%, thus it could be acceptable.[/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]Biomaterial,capillary wick,digital image processing,measurement,micro-CT scan[/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]The authors would like to thank the Directorate of Research and Community Service, Universitas Indonesia, for funding this research project under the Q1Q2 Program 2019, no. NKB-0315/UN2.R3.1/HKP05.00/2019.[/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/10.1063/5.0013999[/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]