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Chemical Engineering Library for MathCAD

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Chemical Engineering Library for MathCAD

The ChEMath Library is a very simple library that is capable of computing the Darcy friction factor for flow in pipes. It calculates the friction factor taking into account on which region the flow is in (laminar, transition, or turbulent).

The ChEMath Library is been released as a DLL file that can be accessed by MathCAD.

See http://www.jvrfnts.com/ChEMath/ for more information.

Javier Fuentes

7 REPLIES 7

Chemical Engineering Library for MathCAD

Comments:

1. Dll for so simple thinks ?
Dll as is ? will hesitate

2. we have a work sheet that calculates based
on Colebrook and we can plot for different pipe
sizes.

3. same work sheet is almost complete for most
singular losses (elbows,tees, branches,
reducers/expanders ...).

It might augment your library.
What version is your Mathcad ? if interested ?

jmG

Chemical Engineering Library for MathCAD

Hi.

The reason why I chose the friction factor was because its simplicity. I was trying to prove myself that I was capable of implementing an external function in a DLL file and I could call this function from MathCAD.

Right now, I am planning to implement something more challenging such as the Steam Table. Perhaps, I can implement more fluid mechanic equations. I do not know that yet. Whatever it is, I will expand my library with the new additions and I will let you know.

Javier Fuentes

Chemical Engineering Library for MathCAD

Steam Tables:

The WaterSteam Pro from Valery and Konstantine
they are world's best. We have also for 10 minutes at the time (if we don't purchase) the 1967 IAPWS from Katmar software, just perfect.
I have put most essential properties in Mathcad work sheet (4 sheets). They work OK, but were done in 8 at my beginning of Mathcad, therefore not as elegant as it should be.
The equations I used are 1997 from ChemEng in VB.
But my VB has not been re-installed after a computer failure in october 2002.
They work perfect in Excel table format.

WaterSteam Pro above are all in dll as user functions from the menu and the work sheet direct.

jmG

Chemical Engineering Library for MathCAD

Hi jmG

WaterSteam Pro seems to be a very impressive application for steam table calculation. However, it is based on the 1997 formulation and I was actually thinking of implementing the 1995 formulation for general and scientific use. I have not made my mind yet, but your feedback has been valuable.

Javier Fuentes

Chemical Engineering Library for MathCAD

On 6/2/2003 4:38:23 PM, jvrfnts wrote:
>Hi jmG
>
>WaterSteam Pro seems to be a
>very impressive application
>for steam table calculation.
>However, it is based on the
>1997 formulation and I was
>actually thinking of
>implementing the 1995
>formulation for general and
>scientific use. I have not
>made my mind yet, but your
>feedback has been valuable.
>
>Javier Fuentes


Personally, I think this one is better. Save your time Javier!

http://members.cox.net/mister-ed/astem97m.htm

Bob

Chemical Engineering Library for MathCAD

Re: Chemical Engineering Library for MathCAD

Hello,

This mentioned spreadsheets in MathCad?...Is they awailable now? is it possible to send them to me? I am new user of MathCad and really need them.