Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating
Phase-change materials offer high latent heat and are widely used for energy storage applications. Paraffin wax is usually used as a phase-change material. However, its application in energy storage is restricted due to its low thermal conductivity. In the present work, graphite and graphite-hydroge...
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| مؤلفون آخرون: | , , , |
| التنسيق: | article |
| منشور في: |
2022
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://dx.doi.org/10.1016/j.csite.2022.102470 https://www.sciencedirect.com/science/article/pii/S2214157X22007067 http://hdl.handle.net/10576/42844 |
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| _version_ | 1857415086618968064 |
|---|---|
| author | Sreedevi, Paramparambath |
| author2 | Maurya, Muni Raj Houkan, Mohammad Talal Cabibihan, John-John Sadasivuni, Kishor Kumar |
| author2_role | author author author author |
| author_facet | Sreedevi, Paramparambath Maurya, Muni Raj Houkan, Mohammad Talal Cabibihan, John-John Sadasivuni, Kishor Kumar |
| author_role | author |
| dc.creator.none.fl_str_mv | Sreedevi, Paramparambath Maurya, Muni Raj Houkan, Mohammad Talal Cabibihan, John-John Sadasivuni, Kishor Kumar |
| dc.date.none.fl_str_mv | 2022-10-06 2023-05-17T08:37:46Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://dx.doi.org/10.1016/j.csite.2022.102470 Paramparambath, S., Maurya, M. R., Houkan, M. T., Cabibihan, J. J., & Sadasivuni, K. K. (2022). Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating. Case Studies in Thermal Engineering, 39, 102470. 2214-157X https://www.sciencedirect.com/science/article/pii/S2214157X22007067 http://hdl.handle.net/10576/42844 39 2214-157X |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Wax-graphite-hydrogel Composite Thermal conductivity Heat sink Coating |
| dc.title.none.fl_str_mv | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Phase-change materials offer high latent heat and are widely used for energy storage applications. Paraffin wax is usually used as a phase-change material. However, its application in energy storage is restricted due to its low thermal conductivity. In the present work, graphite and graphite-hydrogel are used to enhance the thermal conductivity and heat release properties of paraffin wax. Wax-graphite (W-G) and wax-graphite-hydrogel (W-G-H) composites were synthesized by the dispersion of graphite and graphite-hydrogel in paraffin wax above its melting temperature. Scanning electron microscope (SEM) analysis was used to investigate the graphite and graphite-hydrogel distribution in the paraffin wax matrix. Thermogravimetric analysis (TGA) and differential scanning calorimeter (DSC) characterization were performed to measure the thermal stability and phase transition properties, respectively. DSC revealed that all composites have a similar melting temperature. The W-G-H composite displayed nearly 12 folds more thermal conductivity compared to the pure paraffin wax. High temperature brings adverse impacts on energy efficiency, and even destroys a semiconductor device. The synthesized W-G-H composite is proposed to decrease the working temperature of semiconductor devices. As an applicative demonstration, the W-G-H composite film was coated at the back of the solar panel. The W-G-H composite coated solar panel displayed a surface temperature that was near ∼4 °C lower than the bare solar panel while operating. The real-time experiment indicates that the W-G-H composite has high thermal conductivity and heat release properties. The study reports fundamentally new low-cost, simple, scalable, and self-adaptive, passive cooling technology to the semiconductor industry. The proposed material can further be developed in the form of paint and its heat sink properties can be improved by introducing hydrogels doped with Li+ and Br− ions. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | qu_62b8806304c2bbc50a7d3fa85872eceb |
| identifier_str_mv | Paramparambath, S., Maurya, M. R., Houkan, M. T., Cabibihan, J. J., & Sadasivuni, K. K. (2022). Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating. Case Studies in Thermal Engineering, 39, 102470. 2214-157X 39 |
| language_invalid_str_mv | en |
| network_acronym_str | qu |
| network_name_str | Qatar University repository |
| oai_identifier_str | oai:qspace.qu.edu.qa:10576/42844 |
| publishDate | 2022 |
| publisher.none.fl_str_mv | Elsevier |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| spelling | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coatingSreedevi, ParamparambathMaurya, Muni RajHoukan, Mohammad TalalCabibihan, John-JohnSadasivuni, Kishor KumarWax-graphite-hydrogelCompositeThermal conductivityHeat sinkCoatingPhase-change materials offer high latent heat and are widely used for energy storage applications. Paraffin wax is usually used as a phase-change material. However, its application in energy storage is restricted due to its low thermal conductivity. In the present work, graphite and graphite-hydrogel are used to enhance the thermal conductivity and heat release properties of paraffin wax. Wax-graphite (W-G) and wax-graphite-hydrogel (W-G-H) composites were synthesized by the dispersion of graphite and graphite-hydrogel in paraffin wax above its melting temperature. Scanning electron microscope (SEM) analysis was used to investigate the graphite and graphite-hydrogel distribution in the paraffin wax matrix. Thermogravimetric analysis (TGA) and differential scanning calorimeter (DSC) characterization were performed to measure the thermal stability and phase transition properties, respectively. DSC revealed that all composites have a similar melting temperature. The W-G-H composite displayed nearly 12 folds more thermal conductivity compared to the pure paraffin wax. High temperature brings adverse impacts on energy efficiency, and even destroys a semiconductor device. The synthesized W-G-H composite is proposed to decrease the working temperature of semiconductor devices. As an applicative demonstration, the W-G-H composite film was coated at the back of the solar panel. The W-G-H composite coated solar panel displayed a surface temperature that was near ∼4 °C lower than the bare solar panel while operating. The real-time experiment indicates that the W-G-H composite has high thermal conductivity and heat release properties. The study reports fundamentally new low-cost, simple, scalable, and self-adaptive, passive cooling technology to the semiconductor industry. The proposed material can further be developed in the form of paint and its heat sink properties can be improved by introducing hydrogels doped with Li+ and Br− ions.This work was supported by Qatar National Research Fund under the grant no. NPRP12S-0131-190030 . Open Access funding was provided by the Qatar National LibraryElsevier2023-05-17T08:37:46Z2022-10-06Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1016/j.csite.2022.102470Paramparambath, S., Maurya, M. R., Houkan, M. T., Cabibihan, J. J., & Sadasivuni, K. K. (2022). Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating. Case Studies in Thermal Engineering, 39, 102470.2214-157Xhttps://www.sciencedirect.com/science/article/pii/S2214157X22007067http://hdl.handle.net/10576/42844392214-157Xenhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:qspace.qu.edu.qa:10576/428442024-07-23T13:53:16Z |
| spellingShingle | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating Sreedevi, Paramparambath Wax-graphite-hydrogel Composite Thermal conductivity Heat sink Coating |
| status_str | publishedVersion |
| title | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating |
| title_full | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating |
| title_fullStr | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating |
| title_full_unstemmed | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating |
| title_short | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating |
| title_sort | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating |
| topic | Wax-graphite-hydrogel Composite Thermal conductivity Heat sink Coating |
| url | http://dx.doi.org/10.1016/j.csite.2022.102470 https://www.sciencedirect.com/science/article/pii/S2214157X22007067 http://hdl.handle.net/10576/42844 |