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Full-Text Articles in Nanoscience and Nanotechnology
Sub-Cooled Pool Boiling Enhancement With Nanofluids, Elliott Charles Rice
Sub-Cooled Pool Boiling Enhancement With Nanofluids, Elliott Charles Rice
USF Tampa Graduate Theses and Dissertations
Phase-change heat transfer is an important process used in many engineering thermal designs. Boiling is an important phase change phenomena as it is a common heat transfer process in many thermal systems. Phase change processes are critical to thermodynamic cycles as most closed loop systems have an evaporator, in which the phase change process occurs. There are many applications/processes in which engineers employ the advantages of boiling heat transfer, as they seek to improve heat transfer performance. Recent research efforts have experimentally shown that nanofluids can have significantly better heat transfer properties than those of the pure base fluids, such …
Thermophysical Characterization Of Nanofluids Through Molecular Dynamic Simulations, John Shelton
Thermophysical Characterization Of Nanofluids Through Molecular Dynamic Simulations, John Shelton
USF Tampa Graduate Theses and Dissertations
Using equilibrium molecular dynamics simulations, an analysis of the key thermophysical properties critical to heat transfer processes is performed. Replication of thermal conductivity and shear viscosity observations found in experimental investigations were performed using a theoretical nanopthesis-fluid system and a novel colloid-fluid interaction potential to investigate the key nanofluid parameters. Analysis of both the heat current (thermal conductivity) and stress (shear viscosity) autocorrelation functions have suggested that the dominant physical mechanisms for thermal and momentum transport arises from enhancements to the longitudinal and transverse acoustic modes energy transfer brought about by the increased mass ratio of the nanopthesis to the …