Physical Process Modeling

heat transfer module
               

heat transfer module

Heat transfer is involved in almost every kind of physical process, and in fact it can be the limiting factor for many processes. Indeed, the modeling of heat transfer effects has become ever more important in the design of products in many areas including the electronics, automotive, and medical industries. The combination of experimental work in the laboratory along with theoretical analyses through computer models has proven to be effective in accelerating the understanding of problems as well as helping decrease development costs for new processes. In the past, sophisticated modeling tools were a luxury that only large companies could afford, where savings in large production runs justified the costs in computer software and specialized engineers. Today, modeling has become an indispensable element of research and process development, and realistic models of advanced systems are feasible on a personal computer.

Mono-Dimensional and Two-Dimensional Model
Three-Dimensional Model Of System Furnace-Heated Body
Measurement Devices
Energy Analysis Of ERF
Process Of Melting
Cooling Of The Bodies
Regulation Of The Process Of Heating
Regulation Of The Temperature
Model Of Regulation By Assigning Hysteresis
A Model Of PID Regulation
A Model Of PID Program Regulator
A Distribution Of The Installed Capacity In ERF

heat transfer module




Physical Process Modeling THEORY
Conductivity;   Convection;   Radiation
Mixed and Complex
Indirect heating
Transition process

Heat Transfer Demo Transient Process (FEM, PDE, System Differential Equation)
demo 1 demo 2 demo 3 demo 4 demo 5 demo 6
demo 7 demo 8 demo 9 demo 10 demo 11 demo 12
demo 13 demo 14 demo 15 demo 16 demo 17 demo 18
demo 19 demo 20 demo 21 demo 22 demo 23 demo 24




Heat Transfer - Articles and Theory




The sections contain useful information: references, articles and so on with regard to the relevant section. The Physical Process Modeling team does not claim authorship. The sources are given here.


    First Law of Thermodynamic
Reference Book
Thermophysical properties

There exist some energy exchanges between the
system and its surroundings which are not associated
with a collective displacement and are, therefore, not associated with the mechanical work. This is the case of energy transfer between the system and another body which is hotter or colder than the system. In this case, the change of the internal energy is a result of interactions between the particles of systems put into contact. The molecules, which are in random motion, collide each other. At each collision, a small amount of energy is exchanged. Energy is transferred also at distance by emission and absorption of electromagnetic radiation.

Thermophysical properties of gases 1
at atmospheric pressure (101325 Pa)
Thermophysical properties of gases 2
Thermophysical properties of gases 3
Thermophysical properties of gases 4
Thermophysical properties of gases 5
Properties of metallic solids 1
Properties of metallic solids 2
Materials for resistance-heating elements
Total Emissivity and Solar Absorptivity of Selected Surfaces
Application Characteristics of Some Common Thermocouple Alloys




Reference Book
Thermophysical properties

    Second Law of Thermodynamic

Properties of nonmetallic solids 1
Properties of nonmetallic solids 2
Properties of nonmetallic solids 3
Thermophysical properties of saturated liquids 1
Thermophysical properties of saturated liquids 2
Thermophysical properties of saturated liquids 3
Thermophysical properties of saturated liquids 4
Thermophysical properties of saturated liquids 5
Thermophysical properties of saturated liquids 6
Some latent heats of vaporization hfg (Kj/Kg)
Thermophysical properties of saturated vapors 1
(p 1 atm)
Thermophysical properties of saturated vapors 2
Thermophysical properties of saturated vapors 3

Thermodynamics is a branch of physics which
studies the thermal properties of macroscopic
systems without explicitly considering the microscopic structure of matter. The behavior of the systems is described by macroscopic concepts such as those of temperature, pressure and heat. Thermodynamics is based on several principles, which are a generalization of numerous observations and experiments. Although thermodynamics was developed before the microscopic nature of matter was well understood, the principles of thermodynamics are ultimately explained by a statistical treatment of the random motion of atoms and molecules.






Data for KANTHAL & SIMULATION



The sections contain useful information: references, articles and so on with regard to the relevant section. The Physical Process Modeling team does not claim authorship. The sources are given here.
The materials in this section are authorship of the Physical Process Modeling team. They are presented in abridged form without additional explanations to them. For more information, contact us.

    Data for KANTHAL
Simulation - heat transfer
    Index:
    KANTHAL A, AF, wire;
    KANTHAL A, AF, ribbon
    KANTHAL D, wire;
    KANTHAL D, ribbon

SIMULATION 1 - PID regulation

SIMULATION 2 - PID regulation

SIMULATION 3 - process without a regulator develops



Simulation - heat transfer

    Data for NIKROTHAL and ALKROTHAL alloys
Example regulation 1 - ERF
Example regulation 2 - ERF
Example regulation 3 - ERF
Example regulation 4 - ERF
Example regulation 5 - ERF
Example regulation 6 - ERF
Example regulation 7 - ERF
    Index:
    NIKROTHAL 80 Plus wire
    NIKROTHAL 80 Plus ribbon
    NIKROTHAL 60 Plus wire
    NIKROTHAL 60 Plus ribbon
    NIKROTHAL 40 Plus wire
    NIKROTHAL 40 Plus ribbon




    SUPERTHAL Heating Modules
Simulation - heat transfer
    Index:


Heat Transfer Example 1
Heat Transfer Example 2
Heat Transfer Example 3
Heat Transfer Example 4
Heat Transfer Example 5


Simulation - heat transfer

    SUPERTHAL Heating Modules
SIMULATION 1 - PID regulation

SIMULATION 2 - PID regulation

MOVIE - chamber resistance furnace 1.avi

MOVIE - chamber resistance furnace 2.avi

    Index:



    Thermophysical properties of refrigerants
Thermophysical properties of refrigerants
    Index:
    THIS chapter presents data for thermodynamic and transport properties of refrigerants, arranged for the occasional user. The refrigerants have a thermodynamic property chart on pressure-enthalpy coordinates with an abbreviated set of tabular data for saturated liquid and vapor on the facing page. In addition, tabular data in the superheated vapor region are given for R-134a to assist students working on compression cycle examples.
    For each cryogenic fluid, a second table of properties is provided for vapor at a pressure of one standard atmosphere; these data are needed when such gases are used in heat transfer or purge gas applications. For zeotropic blends, including R-729 (air), tables are incremented in pressure, with properties given for liquid on the bubble line and vapor on the dew line. This arrangement is used because pressure is more commonly measured in the field while servicing equipment; it also highlights the difference between bubble and dew-point temperatures (the "temperature glide" experienced with blends).


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Heat Transfer Module. Modelling, Analysis and Project.