Publication | Closed Access
HEAT TRANSFER IN MICROCHANNELS
191
Citations
0
References
2001
Year
Larger Diameter RangeHeat Transfer ProcessEngineeringFluid MechanicsHeat Transfer EnhancementApplied PhysicsPorous MediaTransport PhenomenaGas-liquid FlowThermodynamicsHeat TransferMultiphase FlowMicrofluidicsThermal EngineeringHeat PipePressure DropTwo-phase Flow
Abstract In this article an attempt has been made to review the literature regarding heat transfer and pressure drop in one- and two-phase flow in microchannels. The emphasis has been on reports presented during the last few years. For single-phase flow, channels with hydraulic diameters less than 1 mm have been considered. For two-phase flow, very little information is available for such small channels. Also, for two-phase flow, deviations from largetube behavior start at diameters of a few millimeters. For these reasons a slightly larger diameter range has been considered in this case. As a conclusion, it can be stated that the understanding of flow in microchannels is increasing steadily, but that there are still many questions to be answered concerning the reasons for deviations from classical theory developed for larger channels.