ME639A - Liquid Vapour Phase Change Phenomena

Introduction to two phase flow and heat transfer technology Liquid vapor phase change phenomena , Interfacial tension, Wetting phenomenon, Contact angles, Transport effects, Dynamic behavior of interfaces, Phase stability and nucleation Two phase flow fundamentals, Flow patterns and map representation, Development of homogeneous, separated flow and drift flux models, Flooding mechanisms Boiling Fundamentals, Homogeneous and heterogeneous nucleation, Pool boiling and convective flow boiling, Heat transfer and CFH mechanisms, Enhancement techniques Condensation fundamentals, External and internal condensation , Film condensation theory , Drop wise condensation theory , Enhancement techniques Experimental techniques, Practical boundary conditions, Void fraction measurement techniques, Flow visualization techniques, Contact angle/Surface tension measurement, Conventional thermometry , Limitations, Data reduction, Application examples Application of two phase t1ow and heat transfer, Theory and operation of Boilers/Evaporators and condensers for Nuclear/Power/RAC industry, Electronics thermal management, Latent heat storage devices, Gravity assisted thermo syphons/ Vapor chambers, Conventional heat pipes, Micro heat pipes, Pulsating heat pipes, Capillary pumped loops/ Loop heat pipes, Micro two phase heat exchangers Special related topics: for example, static and dynamic instabilities, micro scale boiling and condensation , atomistic nucleation models, microgravity boiling, micro fabrication/ integration techniques, contact resistance, surface roughness, Leiden frost phenomena, etc.