CHARACTERIZATION OF CRITICAL TWO-PHASE FLOW REGIMES FOR DESIGN OF COMPACT ENERGY SYSTEMS

October 18, 2019 in News & Media

  • Title of project: CHARACTERIZATION OF CRITICAL TWO-PHASE FLOW REGIMES FOR DESIGN OF COMPACT ENERGY SYSTEMS
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  • Description: The objective of this research is to advance the science of thin films formation and evaporation in different flow regimes in microchannels. Flow regimes involving thin films are arguably the most intricate phenomena in the microchannel flow boiling process that dictate heat and mass transfer and pressure drop. The proposed study is enabled by a newly developed testing/sensing platform capable of accurately measuring the magnitude, area of influence, and time period of activation of flow boiling underlying microscale transport events. The new measurement technique can resolve thermal field in liquid films with thicknesses on the order of a micrometer, forming in microseconds, and flow, become unstable and rupture/atomize during transition from one flow regime to another. The measurement method, for the first time, allows to relate the flow regimes thermo- and hydrodynamics characteristics. The knowledge gained through the experimental and analytical studies will be used in development of predictive models for quantitative assessment of flow boiling heat transfer and pressure drop. These models are key to the design and performance evaluation of heat exchangers for compact and efficient energy systems.
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  • How to apply: Send your resume to Dr. Moghaddam
  • Faculty contact/webpage: Dr. Saeed Moghaddam, saeedmog@ufl.edu, http://www2.mae.ufl.edu/saeedmog/