Thermodynamics - ChE Links

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About Temperature
What is temperature and an introduction to heat and thermodynamics. Easy to understand.

Air and Exhaust Gas Properties
Calculation of enthalpy, entropy, heat capacity, and density for given temperature and pressure, shareware for MS Windows, 380 kB to download.

@ Air
Software package for MS Windows platforms providing thermodynamic and transport properties of moist air; includes an interactive air properties calculator, a dynamic link library (DLL) of air property functions, and various add-ins with functions for Microsoft Excel, Mathcad and other programs; fully functional 30 day evaluation copy available for download.

Basic Cycles and Components
Introduction to thermodynamic cycles (refrigeration, steam power, gas turbine, internal combustion engine) and their fundamental components (turbine, compressor, combustion chamber, pump).

Chemical Engineering Mathcad Users' Group
Web site for MathCAD users to share worksheets that perform calculations useful in Chemical Engineering. The programs contributed to this site are freely accessible to the public for personal use.

ChemicaLogic SteamTab Companion
A free Windows 9x/NT application for the thermodynamic and transport properties of water and steam, based on the IAPWS-95 formulation.

CODATA Key Values for Thermodynamics
Table with internationally agreed values for the standard enthalpy of formation at 298.15 K, the entropy at 298.15 K, and the change of enthalpy between 0 and 298.15 K of key chemical substances.

Cranium
From MKS, Inc., Windows property estimation software. 20 physical properties for pure compounds and mixtures. Commercial but there's a free Lite version which can be downloaded after completing a form.

CyclePad
Construction and analysis of thermodynamic cycles, freeware for educational purposes, Win 95/NT and higher or WfW 3.11 with Win32, 3 MB to download.

DIPPR Database
Extensive database of pure component property data on industrially-important chemical compounds. Web site gives information about format and pricing as well as a sample of the web interface.

DynaFit
Program for simulation and least-squares fitting of chemical kinetic data. Freeware. Registration optional.

Energy Conversion
From Engineering Software, Windows based software package for calculation of thermodynamic and transport properties as well as analysis of power cycles and compressible flow, demo available.

The Expert System for Thermodynamics
From Subrata Bhattacharjee, expert system written in Java and HTML for assisting students and professionals with problem solving in Engineering Thermodynamics.

FactSage
Commercial Windows based tool for the application of Computational Thermochemistry in a wide range of fields.

Fact-Web
Free but limited online access to the FactSage thermochemical software and the Fact compound databases.

K&K Associates - Thermophysical Data
Free databases with thermophysical properties of materials. Select "Thermal Data" from the navigation bar on the left.

Kinetics2000^TM
Program for reducing and calculating kinetic parameters from a wide range of experimental techniques and data. Windows 95/NT and higher.

Kintecus
Software for modeling reactions of chemical, combustion, nuclear, biological, atmospheric and many other processes.

Lecture Notes on Thermodynamics
Jon Lee's lecture notes on the first law of thermodynamics, PVT behavior of pure substances, flow processes and heat capacity, and reversible and irreversible processes.

Molecular Model for an Ideal Gas
Verify the ideal gas law by doing experiments with this Java applet by Fu-Kwun Hwang.

Molecular Weight Calculator
A molecular weight calculator for download. MS Windows application. Freeware.

NIST/ASME Steam Properties Database
Provides water properties over a wide range of conditions based upon the IAPWS 1995 formulation for general and scientific use; Microsoft Windows 95/98/2000 or NT 3.51 or higher; online purchase possible.

OMDI Pure Component Tools
Excel add-in (XLL) providing pure component property data for over 600 compunds. Requires Microsoft Excel v5.0 for Power Macintosh or Windows NT, or v7.0 for Windows 95 and higher. Fully functional demo available.

On-Line Gas Density Calculation
Calculation of gas density and specific volume for a given compressibility factor.

PhysProps
Database and estimation tool for chemical and physical properties of pure substances. Fully functional 14-day trial version for Windows 9X/NT/ME/2000 available for download (12 MB).

Prode Properties
Dynamic Link Library (DLL) with procedures for calculating thermodynamic and transport properties that can be used from various spreadsheets or Visual Basic, C, C++ programs. Evaluation copy available after registration.

PsyCalc
Comprehensive psychrometric calculator for Windows 3.1/9x/NT, fully functional free student version for colleges and universities as well as a 30 day trial version for everyone else available.

Psychrometric Calculator
Online calculation of the properties of moist air in SI units (Java). There's also a version with English units.

REACT for Windows
Chemical kinetics program for the simulation and modeling of chemical mechanisms, MS Windows, free 30 day trial license available.

The Second Law of Thermodynamics
From Prof. Frank L. Lambert, how the second law affects our world of energy and matter, a tutorial in questions & answers form for both beginners and pros.

Steam Properties
MS Windows application that calculates properties of steam/water within a wide range of pressure and temperature. Shareware.

Steam Tables
From WinSim, free DOS programs and a DLL for calling from Win32 programs based on the 1967 ASME steam tables.

Steam Tables II
Tables with properties of water and steam.

TBS-EOS Calculator
Java applet to calculate the compressiblity factors of liquid and vapor phases using the Trebble-Bishnoi-Salim cubic equation of state. Note that the description is given below the input mask.

Thermo Explorer
Java applet that accepts component names and returns data for that component: molecular weight, normal boiling and freezing point, critical constants, acentric factor, dipole moment, and liquid density.

Thermo Utilities
From Taftan Data, MS Excel add-ins for design, analysis, and optimization of power plants and air conditioning systems. Demo available.

Thermodynamic Databases
Commercial thermodynamic databases from AEA Technology: NIST Chemical Kinetics Database, SGTE pure element, substance, solution, and molten salt databases, Thermotech Databases with material specific data for commercial alloys.

Thermodynamic Properties Page
From Quest Consultants, thermodynamic property calculations using the Peng-Robinson Equation of State. Max. 10 components. Input via html forms.

Thermodynamics Online Help
From Taftan Data, tutorial in MS Windows help format (138 kB) covering the laws of thermodynamics, heat engines, turbines, heat exchangers, energy, power, heat, and the basic properties of pure fluids.

Thermophysical Properties of Fluid Systems
Accurate thermophysical properties for 16 fluids: density, specific volume, Cp, Cv, enthalpy, internal energy, entropy, sound speed. From the NIST Standard Reference Database Number 69 - July 2001 Release.

Utility Applets for Engineers & Scientists
From Subrata Bhattacharjee, Java applets for unit conversion, compressibility and psychrometric (A/C) charts, steam, refrigerants, ammonia, and ideal gas tables.

Virtual Laboratory: Thermodynamic Equilibrium
From the University of Oregon, online experiments (Java applet) demonstrating the diffusion process which occurs when gases of different temperatures are mixed.

Virtual Materials
Thermo-physical property prediction software as callable DLLs and OLE/COM components for process simulators, MS-Office applications or programming with Delphi, Visual Basic etc.

WASP
Water and steam properties calculation program for Windows. Shareware.

What is Pinch?
An introduction to Pinch Technology from LinnhoffMarch, Acrobat pdf format.

XLThermal Fluids
Free Excel/VBA/Fortran function for calculation of 7 thermodynamic properties of common engineering fluids. The thermodynamic properties calculated include temperature, pressure, specific volume, internal energy, enthalpy, entropy, and quality.

By: Dr. Bernhard Spang, Associate Content Writer (read the author's Profile)
b.spang@hamburg.de