Graphene has been applied for enhancing boiling heat transfer due to the fact of the extremely lower interfacial thermal resistance due to it atomic layer thickness, and the ease of adjusting the surface morphology and wettability that favorable to catalyze the vaporization on fluid/graphene interface. There are very few reports in the past years regarding the two-phase heat transfer on graphene coating surfaces. Most the detail mechanism on heat transfer enhancement is still not completely clear. This project will continue our previous related research project on the pool boiling and condensation heat transfer by applying graphene coatings. It is aimed to thoroughly understand the detailed mechanism of bubble generation and condensate drop formation on functionalized graphene coatings. This is a three-year period project. The following work packages are expected to be completed.A1.Cavities size and shape observation on functionalized graphene coating surfaces.A2.Micro scope observation of single bubble generation on functionalized graphene coating surfaces.A3.Pool boiling heat transfer performance measurement of fluids with various surface on different coating surfaces.A4. Theoretical derivation on the relation between bubble dynamics and heattransfer performance.B1.Micro scope observation of droplet formation on functionalized graphene coating surfaces.B2. Condensation heat transfer performance measurement of fluids with various surface on fin tubes with different coatings.B3.Condensate flow observation and dynamic analysis.B4.Dynamic balance analysis on the condensation flow instabilities under the effect of graphene coatings.
|Effective start/end date||1/08/20 → 31/07/21|
UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):
- Functionalized graphene
- Pool boiling
- Heat transfer enhancement
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