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

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Abstract

This work aims to investigate pool boiling heat transfer enhancement by using nanostructured surfaces. Two types of nanostructured surfaces were employed, gold nanoparticle-coated 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.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Malmö University
  • Lund University
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Materialkemi

Nyckelord

Originalspråkengelska
Titel på värdpublikationHeat Transfer and Thermal Engineering
FörlagAmerican Society of Mechanical Engineers(ASME)
Volym8B-2018
ISBN (elektroniskt)9780791852125
StatusPublished - 2018
PublikationskategoriForskning
Peer review utfördJa
EvenemangASME 2018 International Mechanical Engineering Congress and Exposition, IMECE 2018 - Pittsburgh, USA
Varaktighet: 2018 nov 92018 nov 15

Konferens

KonferensASME 2018 International Mechanical Engineering Congress and Exposition, IMECE 2018
LandUSA
OrtPittsburgh
Period2018/11/092018/11/15