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FLOW BOILING OF WATER ON TITANIUM AND DIAMOND-LIKE CARBON COATED SURFACES IN A MICROCHANNEL

Hai Trieu Phanb, Nadia Caneya,†, Philippe Martya, Stéphane Colassonb, Jérôme Gavilletb

a Université Joseph Fourier, LEGI, BP 53, 38041 Grenoble Cedex 9, France
b LITEN, CEA Grenoble, 17 rue des martyrs, 38054 Grenoble Cedex 9, France

* Corresponding Author: Email: email

Frontiers in Heat and Mass Transfer 2011, 2(1), 1-6. https://doi.org/10.5098/hmt.v2.1.3002

Abstract

Experiments were performed to study the effects of surface wettability on flow boiling of water at atmospheric pressure. The test channel is a single rectangular channel 0.5 mm high, 5 mm wide and 180 mm long. The mass flux was set at 100 and 120 kg/m2 s and the base heat flux was varied from 30 to 80 kW/m2. Water enters the test channel under subcooled conditions. The sample surfaces are titanium (Ti) and diamond-like carbon (DLC) surfaces having a contact angle of 49° and 63°, respectively. The experimental results show different flow patterns that impact the heat transfer significantly. Compared to the Ti surface, the DLC surface shows a deterioration of 10% in heat transfer.

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Phan, H. T., Caney, N., Marty, P., Colasson, S., Gavillet, J. (2011). FLOW BOILING OF WATER ON TITANIUM AND DIAMOND-LIKE CARBON COATED SURFACES IN A MICROCHANNEL. Frontiers in Heat and Mass Transfer, 2(1), 1–6.



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