Pool boiling heat transfer of n -pentane and acetone on nanostructured surfaces by electrophoretic deposition

Wu, ZanLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH (författare)

This work aims to investigate pool boiling heat transfer enhancement by using nanostructured surfaces. Two types of nanostructured surfaces were employed, gold nanoparticlecoated surfaces and alumina nanoparticle-coated surfaces. The nanostructured surfaces were fabricated by an electrophoretic deposition technique, depositing nanoparticles in a nanofluid onto smooth copper surfaces under an electric field. N -pentane and acetone were tested as working fluids. Compared to the smooth surface, the pool boiling heat transfer coefficient has been increased by 80% for n -pentane and acetone. Possible mechanisms for the enhancement in heat transfer are qualitatively provided. The increase in active nucleation site density due to multiple micro/nanopores on nanoparticle-coated surfaces is likely the main contributor. The critical heat flux on nanostructured surfaces are approximately the same as that on the smooth surface because both smooth and modified surfaces show similar wickability for the two working fluids.

Pham, Anh DucLund Univ, Energy Sci, Lund, Sweden,Lund University (författare)
Cao, ZhenLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)zh2507ca (författare)
Albèr, CathrineMalmö University,Malmö universitet,Institutionen för biomedicinsk vetenskap (BMV)(Swepub:mau)hscatal (författare)
Falkman, PeterMalmö University,Malmö universitet,Institutionen för biomedicinsk vetenskap (BMV)(Swepub:mau)hsperni (författare)
Ruzgas, TautgirdasMalmö University,Malmö universitet,Institutionen för biomedicinsk vetenskap (BMV)(Swepub:lu)akem-tru (författare)
Sunden, BengtLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)vok-bsu (författare)
NanoLund: Centre for NanoscienceAnnan verksamhet, LTH (creator_code:org_t)

Ingår i:Proceedings of the Asme International Mechanical Engineering Congress and Exposition, 2018, vol 8b: Amer Soc Mechanical Engineers9780791852125

Av författaren/redakt...: Wu, Zan; Pham, Anh Duc; Cao, Zhen; Albèr, Cathrine; Falkman, Peter; Ruzgas, Tautgird ...; visa fler...; Sunden, Bengt; visa färre...

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