By Sujoy Kumar Saha, Gian Piero Celata
This short addresses the phenomena of warmth move and strain drop in stream boiling in micro channels taking place in excessive warmth flux digital cooling. A spouse variation within the Springer short Subseries on Thermal Engineering and utilized technological know-how to “Critical warmth Flux in stream Boiling in Micro channels,” by way of an analogous writer group, this quantity is idea for execs, researchers and graduate scholars excited by digital cooling.
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Extra info for Heat Transfer and Pressure Drop in Flow Boiling in Microchannels
The improvement of flow instability, by means of employing porous coating layer in microchannels is depicted in Fig. 8 kg/m2 s. it was 46 3 Pressure Drop Studies observed that in single flow region pressure drop in coated channel was always little higher compared to bare microchannel but as the heat flux is increased, the flow became two phase and then sudden rise in pressure drop in both bare and coated microchannel is observed. The pressure drop fluctuation begun with increase in exit quality.
Besides, from the same plot influence of quality can also be observed. Heat transfer coefficient was found to decrease drastically at higher quality. Further, the effect of mass flux on heat transfer is reflected in Fig. 20 when heat flux and saturation temperature were kept constant. No significant influence of mass flux on heat transfer coefficient was observed. Prajapati et al.  compared the heat transfer characteristics of three configurations, namely uniform cross-section, diverging cross-section and segmented finned microchannels with deionized water as the working fluid in subcooled state at the entry and varying mass and heat fluxes in the range 100–350 kg/m2 s and 10–350 kW/m2, respectively.
J Heat Transf 130(10):072402 45. Mukherjee A, Kandlikar SG (2005) Numerical study of the effect of inlet constriction on bubble growth during flow boiling in microchannels. In: Proceedings of the third international conference on microchannels and minichannels. ASME, Toronto, Canada, ICMM 2005–75143 46. Lee HJ, Liu DY, Yao S (2010) Flow instability of evaporative micro-channels. Int J Heat Mass Transf 53:1740–1749 47. Lee PC, Pan C (2008) Boiling heat transfer and two-phase flow of water in a single shallow microchannel with uniform or diverging cross section.