Resume

• 1996

  Spanish

  English

  Doctor of Philosophy (PhD)

  Mechanical Engineering

  University of Illinois at Urbana-Champaign

  Bachelor of Science (BS)

  Mechanical Engineering

  University of Puerto Rico-Mayaguez

• CFD

  Simulations

  Finite Element Analysis

  Heat Transfer

  Biofuels

  Mechanical Engineering

  Experimentation

  Fluid Dynamics

  Electrochemistry

  Combustion

  Characterization

  Thermodynamics

  TGA

  Fluid Mechanics

  Materials Science

  Labview

  Design of Experiments

  ANSYS

  Engineering

  Nanotechnology

  Thermal performance of a novel heat transfer fluid containing multiwalled carbon nanotubes and microencapsulated phase change materials

  Charles Marsh

  Three new heat transfer fluids consisting of combinations of multi-walled carbon nanotubes (MWCNT) and microencapsulated phase change materials (MPCMs) were formulated

  and tested in a turbulent flow heat transfer loop. Stable nanofluids have been prepared using different sizes of multi-walled carbon nanotubes and their thermal properties like thermal conductivity

  viscosity and heat transfer coefficient have been measured. Microencapsulated phase change material slurries containing octadecane as phase change material have been tested to determine their durability and viscosity. A blend of MPCM slurry with MWCNT nanofluid has also been prepared to form a new heat transfer fluid that exhibits unique thermophysical properties including non-Newtonian viscous behavior. Heat transfer experiments have also been conducted to determine heat transfer coefficient and pressure drop values of the MWCNT nanofluids

  MPCM slurries

  and blends of MWCNT with MPCM under turbulent flow and constant heat flux conditions. The heat transfer results of the MPCM slurry containing octadecane was in good agreement with the published results. A maximum thermal conductivity enhancement of 8.1% was obtained for MWCNTs with diameter of 60-100 nm and length 0.5-40 μm. Heat transfer results indicate that MWCNT nanofluid exhibits a convective heat transfer enhancement in the range of 20-25% in turbulent flow conditions. The blend of MPCMs and MWCNTs was highly viscous and displayed a non-Newtonian shear thinning behavior. Due to its high viscosity

  the blend exhibited laminar behavior and lower heat transfer rate

  though the maximum local heat transfer coefficient achieved by the blend was comparable to that obtained with MPCM slurry alone. The pressure drop of the blend was also lower than that of the MWCNT nanofluid. © 2011 Elsevier Ltd. All rights reserved.\n\n

  Thermal performance of a novel heat transfer fluid containing multiwalled carbon nanotubes and microencapsulated phase change materials

  Jorge

  Alvarado

  Texas A&M University

  Bryan/College Station

  Texas Area

  Professor

  Texas A&M University

  Associate Professor\nDepartment of Engineering Technology \nand Industrial Distribution

  Texas A&M University