Heat Transfer Characteristics of Cold Water Phase-Change Heat Exchangers under Active Icing Conditions

Phase Change Heat Transfer Characteristics of Water/pao Nanoemulsion Heat Ttransfer Fluids

In this study, one type of nano-engineered heat transfer fluids: Water/AOT/Polyalphaolefin (PAO) nanoemulsion fluids are prepared, and their phase change heat transfer properties have been investigated. The Water/AOT/Polyalphaolefin nanoemulsion heat transfer fluids which are thermodynamically stable are spontaneously generated by a self-assembly of dispersed water nanodroplets The results, exp...

LMT0 Applications in Two-Phase Heat Transfer and Two-Phase Heat Exchangers

Application of ZnO/TiO2 Nanocomposite for the Improvement of Heat Transfer Coefficient in Tube Heat Exchangers

The potential of nanofluids for the improvement of heat transfer coefficient in various heat exchangeequipment has been considered and studied as a major application during recent decades. In this research,heat transfer coefficient of ZnO, TiO2 and ZnO/TiO2 nanofluids in a shell and tube heat exchanger has beenstudied experimentally. ZnO nanoparticle was synthesized through pre...

Quantification of unsteady heat transfer and phase changing process inside small icing water droplets.

We report progress made in our recent effort to develop and implement a novel, lifetime-based molecular tagging thermometry (MTT) technique to quantify unsteady heat transfer and phase changing process inside small icing water droplets pertinent to wind turbine icing phenomena. The lifetime-based MTT technique was used to achieve temporally and spatially resolved temperature distribution measur...

Convective Heat Transfer Effects in Airfoil Icing

Various classic icing codes have been developed and used by the aircraft manufacturers to predict the ice shapes evolution. These codes apply boundary layer integral analysis, based on sand grain roughness, to estimate the convective heat transfer coefficient around the iced airfoil and adopt abrupt transition between laminar and turbulent flow. In the present work, the integral analysis is als...