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RISModeling of Thermophysical Processes in Liquid Ceramic Precursor Droplets Heated by Monochromatic Irradiation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A transient heat and mass transfer model is formulated to describe radiative heating of ceramic precursor droplets in a nonconvective environment. Heating causes vaporization of solvent from the ...
In Situ Optical Diagnostics for Measurements of Water Vapor Partial Pressure in a PEM Fuel Cell
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A fiber optic coupled diode laser sensor has been constructed for in situ measurements of water vapor partial pressure in active proton-exchange membrane (PEM) fuel cell systems. The bipolar ...
Flow Boiling of R134a in Circular Microtubes—Part I: Study of Heat Transfer Characteristics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental study of two-phase heat transfer coefficients was carried out using R134a in uniformly heated horizontal circular microtubes with diameters from 0.50 mm to 1.60 mm over a range ...
Flow Boiling of R134a in Circular Microtubes—Part II: Study of Critical Heat Flux Condition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A detailed experimental study was carried out on the critical heat flux (CHF) condition for flow boiling of R134a in single circular microtubes. The test sections had inner diameters (ID) of ...