• Home
  • Franklin Uriel Parás Hernández
Franklin Uriel Parás Hernández

Franklin Uriel Parás Hernández

PhD in Materials Science and Nanoscience
I currently work as a full time researcher at the VIAKABLE's Technology & Research Center (CETIV) at Monterrey, Mexico

About

23
Publications
103,828
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
10
Citations
Citations since 2016
22 Research Items
10 Citations
201620172018201920202021202202468101214
201620172018201920202021202202468101214
201620172018201920202021202202468101214
201620172018201920202021202202468101214
Introduction
PhD in Material Science with approach in Nanoscience and Nanotechnology. Currently, interested in the link between transport phenomena e.g. Electric Charge transport, Conduction and Radiation Heat Transfer in nano- and micro- scale structures or in Electronic and Thermal Devices. Fields of Thermal Rectification, Phononics, Micro and Nano Electronics, Thin Films Solar Cells and Light Sensors. Experience in characterization of Thermal and Electric properties of materials, mostly semiconductors.
Additional affiliations
January 2016 - December 2020
Centro de Investigación en Materiales Avanzados, Unidad Monterrey
Position
  • PhD Graduated
Description
  • Graduated from the PhD Program in Material Science and Nanotechnology of this Institution
August 2008 - May 2011
Tecnológico de Monterrey
Position
  • Research Assistant
Description
  • Lab Instructor at the Fluid Mechanic's Laboratory for the undergraduate courses of: "Fluid Mechanics", "Heat Transfer" and "Thermodynamics".
Education
January 2016 - December 2020
Centro de Investigación en Materiales Avanzados, Unidad Monterrey
Field of study
  • Nanostructured Materials, Electric and Heat Transport and Conduction, Thermoelectricity, Semiconductor Thin Films, Deposition Techniques, Nanotechnnology, Advanced Materials
August 2008 - May 2011
Tecnológico de Monterrey
Field of study
  • Thermal Sciences
June 2001 - December 2007
Tecnológico de Monterrey
Field of study
  • Mechanical Engineering

Publications

Publications (23)
Poster
Full-text available
The most successful of Bi3Te2‒alloys are those based on (Se,Sb)Bi2Te3, since these two elements, added in a relatively low quantity, allow to modify ever so slightly its electronic bands structure leading to an enhancement in the thermoelectric figure of merit‒ZT. It is well known, that the ZT bulk limit for either p‒type or n‒type Bi3Te2 is placed...
Experiment Findings
Full-text available
Modules used: CFD Module: - Single Phase Fluid - Laminar Flow Heat Transfer Module: - Heat Transfer in Solids - Heat Transfer in Fluids Due to an incorrect definition of the Boundary Conditions, We haven't been able to get the right distribution of velocities and Temperatures. We lack certainity on the definition of the Boundary Conditions, for...
Poster
Full-text available
In the study of heat conduction it is customary to properly describe the thermodynamic behaviour and energy performance of any solid state system. Many of the macroscopic properties of materials such as the thermal conductivity and specific heat, emerge from the mechanisms of energy transport by charge dispersion and momentum carriers inside the so...
Poster
Full-text available
What is Light? is it a Particle? Is it a Wave?, or Neither ? Light is an Energy Field which permeates all the Universe which can be described with QED (Quantum Electro Dynamics). Nevertheless some of its interactions, either with other Matter or other forms of Energy (as Gravity e.g.) can be described better using an approximation of wave or of par...
Thesis
Full-text available
The Following thesis is an analysis of some of the aspects of flat plate solar collectors, like; its mechanical and thermal performance, its dynamical response, optical losses, etc. Additionally, several test methods for the assessment of these systems are analysed and discussed. Firstly, a brief introduction to this field of science is given, pre...

Questions

Questions (109)
Question
Dear Researchers :
I have this question and I have an hypothesis:
Why Natural HDPE, when extruded at temperatures about 100 °C (around) it has a white (but pale white), and then when the polymer cools down it color turns between white an yellow.
I understand that this phenomenon it is a general case of all LLDPE, LDPE and HDPE , and in all fabrication processes : Extrusion, injection, molding, pressing, etc.
So this is fundamentally, a chemical characteristic of the material ...
It has to do with a change in the Oxygen concentration in the material ?
Thank you all in advance,
Best Regards !
Question
Hello dear Researchers :
Does anyone have modeled, or have literature on how to mathematically model a :
Fluid Flow of a :
- Non-Newtonian Fluid
- Non-Isotermal Flow
- Compressible Flow
- Polymer.
Thank you for any help, I'll appreciate it !
Best Regards !:)
Question
Dear Researchers :
Does someone know something, or is acquainted with the issue of "Flow Lines" (also called "Flow Marks" or "Streaks") on the extrusion process of insulation layers on Electric Cables.
I am investigating about this defect,
Why cause them ? How can be eliminates ? What are the factors to make them appear on the cable ? Etc.
Kindly, Franklin U.
Question
Dear Researchers, Hello all !
I'm looking for scientific/technical literature, specifically about the study or analysis of the fluid flow inside an extruder, applied for the extrusion process of MV or HV Electric Cables.
If someone has useful literature, please, I'll appreciate for sharing !:)
Thank you,
Regards!
Question
Dear Researchers, hopefully someone can help me here:
I built a 2D model in COMSOL, of a simple three-layer covered conductor, surrounded by air.
This cable is for aerial power lines ,
Now, I need to compute the "Dielectric Strenght", this property is given in (V/m) or (kV/mm), of the most outer layer of the Cable.
Does anyone know how to do this in COMSOL ?
Best Regards !
Question
Dear all :
I know that Relative Permitivity is a Dielectric Property of the medium that measures the ability of the Insulator to store Electric Energy in an Electrical Field
But, could someone give me more explanation and intuition about this concept within the context of the 'Electrical Breackdown' phenomenon in a Dielectric Material ?
such as in the Covers of Energy Power Cables, when the Cover (or jacket) gets in touch with an element that might lay the conductor to Ground.
Thank you all !

Network

Cited By

Projects

Projects (4)
Project
- To numerically simulate a system of an Air Solar Collector with a glazing cover, an undulated shape Absorber Plate, a bottom metallic plate, and a bottom insulating material. - To obtain the Velocities (u and v) and Temperatures Distributions of the Air inside the cavity of the Collector for the 2D case. - Validate our results with other previous simulations obtained in the literature. - Quantify the Useful Gained Heat on the work fluid at the exit of the Collector. - Quantify the Total Heat Losses from the system to the environment. - Build a model in function of the geometry of the Absorber Plate to optimize the Useful Heat output and Energy Efficiency of the Collector.
Project
To develop a Modulator Device controlled by pulses emited using Photosensitive Materials for its possible application in Thermoelectric Devices (Thermoelectricity).
Project
To develop a general thermoelectric converter based on nanostructured materials (p-type/n-type Bi2Te3:Graphenes) for the recovery and recycling of thermal energy in industrial and domestic systems.