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dc.contributor.author김성중-
dc.date.accessioned2019-03-07T02:12:01Z-
dc.date.available2019-03-07T02:12:01Z-
dc.date.issued2016-10-
dc.identifier.citationCARBON, v. 107, Page. 607-618en_US
dc.identifier.issn0008-6223-
dc.identifier.issn1873-3891-
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0008622316304900?via%3Dihub-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/100572-
dc.description.abstractMicro/nanotextured coatings have enabled the manipulation of thermal characteristics in pool boiling heat transfer such as the heat transfer coefficient (HTC) and critical heat flux (CHF) because of the ability to optimize bubble formations and departures. However, fabricating such coatings on substrates involves high cost-bulky setup, and is limited by the materials and adhesion properties. Herein, we report layer-by-layer (LbL)-assembled polyethylenimine (PEI)-multi-walled carbon nanotube (MWCNTs) coatings on stainless steel (SS316) to enhance HTC and CHF in pool boiling heat transfer. LbL-assembled PEI-MWCNTs coatings (10, 20, 40 bi-layers) on SS316 were fabricated, whereas bare SS316 substrate and vacuum-filtered MWCNTs coating were prepared as controls. Because of the nano-cavities and the inner-nanoporous structures, LbL coatings showed significant enhancement of HTCs and CHFs compared to bare SS316. Furthermore, denser networks of MWCNTs due to electrostatic bonding and hydrophilic nature of PEI in the LbL coatings could enhance the HTCs and CHFs compared to vacuum-filtered MWCNTs coating. LbL-assembled PEI-MWCNTs of 20 bi-layers showed the highest improvement in HTC, whereas the 40 bi-layers coatings achieved the best enhancement ratio of CHF, (similar to 147%). Further development of the LbL-assembled coatings on metal surfaces would enable potential applications for thermal management, from micro/nanoscale platforms to macroscale systems. (C) 2016 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipThe authors gratefully acknowledge the financial support provided by Defense Acquisition Program Administration and Agency for Defense Development under the contract UD150032GD. This work was also supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education (NRF-2015R1D1A1A01059274), and by the Korean government (MSIP: Ministry of Science, ICT and Future Planning) (No. NRF-2016R1A5A1013919).en_US
dc.language.isoenen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.subjectCHF ENHANCEMENTen_US
dc.subjectFILMSen_US
dc.subjectFLUXen_US
dc.subjectMULTILAYERSen_US
dc.subjectFABRICATIONen_US
dc.subjectMEMBRANESen_US
dc.subjectBUILDUPen_US
dc.subjectPOLYELECTROLYTESen_US
dc.subjectPERFORMANCEen_US
dc.subjectADSORPTIONen_US
dc.titleLayer-by-layer carbon nanotube coatings for enhanced pool boiling heat transfer on metal surfacesen_US
dc.typeArticleen_US
dc.relation.volume107-
dc.identifier.doi10.1016/j.carbon.2016.06.039-
dc.relation.page607-618-
dc.relation.journalCARBON-
dc.contributor.googleauthorLee, Seunghyeon-
dc.contributor.googleauthorSeo, Gwang Hyeok-
dc.contributor.googleauthorLee, Sanghyeok-
dc.contributor.googleauthorJeong, Uiju-
dc.contributor.googleauthorLee, Sang Jun-
dc.contributor.googleauthorKim, Sung Joong-
dc.contributor.googleauthorChoi, Wonjoon-
dc.relation.code2016002051-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF NUCLEAR ENGINEERING-
dc.identifier.pidsungjkim-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > NUCLEAR ENGINEERING(원자력공학과) > Articles
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