DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeong, Mun Goung | ko |
dc.contributor.author | Kim, Joong Bae | ko |
dc.contributor.author | Qin, Caiyan | ko |
dc.contributor.author | Lee, Jungchul | ko |
dc.contributor.author | Lee, Bong Jae | ko |
dc.date.accessioned | 2021-05-27T00:30:24Z | - |
dc.date.available | 2021-05-27T00:30:24Z | - |
dc.date.created | 2021-03-17 | - |
dc.date.created | 2021-03-17 | - |
dc.date.issued | 2021-06 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF ENERGY RESEARCH, v.45, no.7, pp.11320 - 11328 | - |
dc.identifier.issn | 0363-907X | - |
dc.identifier.uri | http://hdl.handle.net/10203/285363 | - |
dc.description.abstract | Therminol-based nanofluids with graphite nanopowders (GNs) were proposed as an efficient working fluid in direct-absorption solar collectors (DASCs), especially for elevated-temperature applications. In this work, Therminol VP-1/GN nanofluids (TG nanofluids) were prepared in two steps with surfactant (Triton X-100). In the synthesis procedure, the vortex generator for coating GN with sticky surfactant (mu = 240 mPa.s) and the ultra-sonicator for diluting GN/Triton X-100 mixture with Therminol VP-1 are used. We have demonstrated excellent dispersion stability up to 4 weeks and even after heating over 100 degrees C without any surface modification of nanoparticles. The feasibility of using the synthesized TG nanofluid as a working fluid in DASCs was experimentally demonstrated by measuring its absorption coefficient as well as by characterizing photo-thermal conversion performance. The absorption coefficient of the TG nanofluid at 0.004 wt.% of GNs was measured to be 1.12 cm(-1), which is more than eight times enhanced from that of bare Therminol VP-1 (ie, 0.13 cm(-1)) in the wavelengths from 350 to 1600 nm. Finally, the temperature increment of 43 degrees C was achieved after t = 3600 s under the 5-sun condition in the static photo-thermal conversion experiment. Moreover, the low viscosity of TG nanofluids (only 2.2% higher than that of the bare Therminol VP-1) supports the superiority of TG nanofluids to be applied as working fluid in DASCs. | - |
dc.language | English | - |
dc.publisher | WILEY | - |
dc.title | Synthesis of therminol-graphite nanofluids and photo-thermal conversion properties | - |
dc.type | Article | - |
dc.identifier.wosid | 000621331300001 | - |
dc.identifier.scopusid | 2-s2.0-85101553654 | - |
dc.type.rims | ART | - |
dc.citation.volume | 45 | - |
dc.citation.issue | 7 | - |
dc.citation.beginningpage | 11320 | - |
dc.citation.endingpage | 11328 | - |
dc.citation.publicationname | INTERNATIONAL JOURNAL OF ENERGY RESEARCH | - |
dc.identifier.doi | 10.1002/er.6568 | - |
dc.contributor.localauthor | Lee, Jungchul | - |
dc.contributor.localauthor | Lee, Bong Jae | - |
dc.contributor.nonIdAuthor | Kim, Joong Bae | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | direct& | - |
dc.subject.keywordAuthor | #8208 | - |
dc.subject.keywordAuthor | absorption solar collector | - |
dc.subject.keywordAuthor | dispersion stability | - |
dc.subject.keywordAuthor | photo& | - |
dc.subject.keywordAuthor | #8208 | - |
dc.subject.keywordAuthor | thermal conversion | - |
dc.subject.keywordAuthor | solar energy | - |
dc.subject.keywordAuthor | therminol& | - |
dc.subject.keywordAuthor | #8208 | - |
dc.subject.keywordAuthor | based nanofluid | - |
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