FLPROPS THE FLUID PROPERTIES CALCULATOR Tom Ames and

Motivation Heat Transfer problems often require extensive tabulated data Iterative problems, especially, can be

Current Solutions Fluid properties are looked up and linearly interpolated by hand Very time

FLPROPS A MATLAB m-file that contains properties for the following fluids: Air, Ammonia, Carbon

FLPROPS Called as a function from an m-file You never even see the property

Future Work Porting flprops scripts to other math programs Maple Mathematica Excel VBA Making

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FLPROPS – THE FLUID PROPERTIES CALCULATOR Tom Ames and Mark Cutler

Motivation Heat Transfer problems often require extensive tabulated data Iterative problems, especially, can be tedious April 1 st 2009

Current Solutions Fluid properties are looked up and linearly interpolated by hand Very time consuming and prone to error Jon Isaacson’s Thermophysical Properties Calculator is used GUI keeps the calculator from being incorporated into other software packages Numbers must still be written out by hand. April 1 st 2009

FLPROPS A MATLAB m-file that contains properties for the following fluids: Air, Ammonia, Carbon Dioxide, Carbon Monoxide, Helium, Hydrogen, Nitrogen, Oxygen, Water Vapor, Engine Oil, Ethylene Glycol, Glycerin, R 132 a, R-22, Mercury, and Water Delivers any property needed Water quality also included April 1 st 2009

FLPROPS Called as a function from an m-file You never even see the property value Allows for iterative solutions in seconds Syntax [beta, Pr, nu, k]=flprops('air', Tf, 'beta', 'Pr', 'nu', 'k'); Place the file in your working directory and type “help flprops” into the command window April 1 st 2009

Future Work Porting flprops scripts to other math programs Maple Mathematica Excel VBA Making a stand alone program Use GUI like Isaacson’s Allow for command line prompt that can be called from other programs April 1 st 2009

Questions? April 1 st 2009