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Article: Evaporation of Al2O3-water nanofluids in an externally micro-grooved evaporator

TitleEvaporation of Al2O3-water nanofluids in an externally micro-grooved evaporator
Authors
Issue Date2017
Citation
Science and Technology for the Built Environment, 2017, v. 23, n. 2, p. 345-354 How to Cite?
AbstractCopyright © 2017 ASHRAE. Nanofluid is a mixture of liquid and solid phase nano-sized particles that shows a high thermal conductivity compared to its base fluid. With micro-grooves being a good method to increase the surface area for heat transfer, there is potential for nanofluid together with microgrooves to improve the performance of cooling systems. This article aims to study the effect of an externally micro-grooved surface on evaporation of aqueous nanofluids and discuss its potential application. In order to prepare a stable nanofluid, the duration time required for ultrasonication, which is a common technique in the preparation process of nanofluid, was first investigated. Next, experiments were conducted to investigate the effect of the micro-grooved surface on the evaporation rate of the nanofluids under different environmental conditions. Results show that the advantage of the enhanced thermal properties of nanofluids can only be manifested by the presence of micro-grooves. The use of a heat exchanger with nanofluids together with micro-grooves shows a better heat transfer performance than a heat exchanger without micro-grooves using water as the coolant. The enhancement is dependent on the vapor pressure and the largest improvement can be up to 44.6%.
Persistent Identifierhttp://hdl.handle.net/10722/255981
ISSN
2017 Impact Factor: 1.183
2015 SCImago Journal Rankings: 0.644
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorFu, Sauchung-
dc.contributor.authorTso, Chiyan-
dc.contributor.authorFong, Yicksau-
dc.contributor.authorChao, Christopher Y.H.-
dc.date.accessioned2018-07-16T06:14:15Z-
dc.date.available2018-07-16T06:14:15Z-
dc.date.issued2017-
dc.identifier.citationScience and Technology for the Built Environment, 2017, v. 23, n. 2, p. 345-354-
dc.identifier.issn2374-4731-
dc.identifier.urihttp://hdl.handle.net/10722/255981-
dc.description.abstractCopyright © 2017 ASHRAE. Nanofluid is a mixture of liquid and solid phase nano-sized particles that shows a high thermal conductivity compared to its base fluid. With micro-grooves being a good method to increase the surface area for heat transfer, there is potential for nanofluid together with microgrooves to improve the performance of cooling systems. This article aims to study the effect of an externally micro-grooved surface on evaporation of aqueous nanofluids and discuss its potential application. In order to prepare a stable nanofluid, the duration time required for ultrasonication, which is a common technique in the preparation process of nanofluid, was first investigated. Next, experiments were conducted to investigate the effect of the micro-grooved surface on the evaporation rate of the nanofluids under different environmental conditions. Results show that the advantage of the enhanced thermal properties of nanofluids can only be manifested by the presence of micro-grooves. The use of a heat exchanger with nanofluids together with micro-grooves shows a better heat transfer performance than a heat exchanger without micro-grooves using water as the coolant. The enhancement is dependent on the vapor pressure and the largest improvement can be up to 44.6%.-
dc.languageeng-
dc.relation.ispartofScience and Technology for the Built Environment-
dc.titleEvaporation of Al2O3-water nanofluids in an externally micro-grooved evaporator-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1080/23744731.2016.1250562-
dc.identifier.scopuseid_2-s2.0-84995546051-
dc.identifier.volume23-
dc.identifier.issue2-
dc.identifier.spage345-
dc.identifier.epage354-
dc.identifier.eissn2374-474X-
dc.identifier.isiWOS:000396872900012-

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