An experimental study on flow boiling characteristics of pHEMA nano-coated surfaces in a microchannel
||The system is temporarily closed to updates for reporting purpose.
Khalili Sadaghiani, Abdolali and Şişman, Yağmur and Özaydın İnce, Gözde and Koşar, Ali (2015) An experimental study on flow boiling characteristics of pHEMA nano-coated surfaces in a microchannel. In: ASME 2016 5th Micro/Nanoscale Heat and Mass Transfer International Conference, Biopolis, Singapore (Accepted/In Press)
In this study, the effect of pHEMA (Polyhydroxyethylmethacrylate) nanostructure coated surfaces on flow boiling was investigated in a rectangular microchannel. Experiments were conducted using deionized water as the working fluid to investigate flow boiling in a microchannel with dimensions of 14 cm length, 1.5 cm width, and 500 µm depth. The effect of pHEMA coatings (coated on 1.5 × 1.5 cm2 silicon plates) on heat transfer coefficients and flow patterns was assessed and supported using a high speed camera system. Although the contact angle decreases on nano-coated surfaces, due to surface porosity, boiling heat transfer coefficient increases. Furthermore, visualization results indicated that uncoated surfaces experienced a smaller nucleate boiling region. It was also observed that dryout occurs at higher heat fluxes for coated surfaces.
Available Versions of this Item
- An experimental study on flow boiling characteristics of pHEMA nano-coated surfaces in a microchannel. (deposited 25 Dec 2015 13:17) [Currently Displayed]
Repository Staff Only: item control page