Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating
<p dir="ltr">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,...
محفوظ في:
| المؤلف الرئيسي: | |
|---|---|
| مؤلفون آخرون: | , , , |
| منشور في: |
2022
|
| الموضوعات: | |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| _version_ | 1864513539505389568 |
|---|---|
| author | Sreedevi Paramparambath (17346997) |
| author2 | Muni Raj Maurya (14149947) Mohammad Talal Houkan (17347000) John-John Cabibihan (352200) Kishor Kumar Sadasivuni (8036039) |
| author2_role | author author author author |
| author_facet | Sreedevi Paramparambath (17346997) Muni Raj Maurya (14149947) Mohammad Talal Houkan (17347000) John-John Cabibihan (352200) Kishor Kumar Sadasivuni (8036039) |
| author_role | author |
| dc.creator.none.fl_str_mv | Sreedevi Paramparambath (17346997) Muni Raj Maurya (14149947) Mohammad Talal Houkan (17347000) John-John Cabibihan (352200) Kishor Kumar Sadasivuni (8036039) |
| dc.date.none.fl_str_mv | 2022-11-01T21:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.csite.2022.102470 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Improvement_of_heat_sink_performance_using_paraffin_graphite_hydrogel_phase_change_composite_coating/24516535 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Fluid mechanics and thermal engineering Materials engineering 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 | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">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.</p><h2>Other Information</h2><p dir="ltr">Published in: Case Studies in Thermal Engineering<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.csite.2022.102470" target="_blank">https://dx.doi.org/10.1016/j.csite.2022.102470</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_93c7570ab2e5ff9a619becb2f94fe7dc |
| identifier_str_mv | 10.1016/j.csite.2022.102470 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24516535 |
| publishDate | 2022 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coatingSreedevi Paramparambath (17346997)Muni Raj Maurya (14149947)Mohammad Talal Houkan (17347000)John-John Cabibihan (352200)Kishor Kumar Sadasivuni (8036039)EngineeringFluid mechanics and thermal engineeringMaterials engineeringWax-graphite-hydrogelCompositeThermal conductivityHeat sinkCoating<p dir="ltr">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.</p><h2>Other Information</h2><p dir="ltr">Published in: Case Studies in Thermal Engineering<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.csite.2022.102470" target="_blank">https://dx.doi.org/10.1016/j.csite.2022.102470</a></p>2022-11-01T21:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.csite.2022.102470https://figshare.com/articles/journal_contribution/Improvement_of_heat_sink_performance_using_paraffin_graphite_hydrogel_phase_change_composite_coating/24516535CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/245165352022-11-01T21:00:00Z |
| spellingShingle | Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating Sreedevi Paramparambath (17346997) Engineering Fluid mechanics and thermal engineering Materials engineering 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 | Engineering Fluid mechanics and thermal engineering Materials engineering Wax-graphite-hydrogel Composite Thermal conductivity Heat sink Coating |