User Defined Functions for multicomponent thermodynamic calculations of the Predictive Peng-Robinson 1978 Equation of State
Clean VBA functions - no UI changes and no pop up messages. Use these functions in HMB workbooks. Errors are reported in cell comments. When error clears then error comment also clears.
1 - Open Pure Component Property Data WorkSheet contained in PData.xlsx. 2 - Import the Math.bas, ModArraySupport.bas and ChE_Functions.bas modules. 3 - Optionally add FunctionReference.xlsx. 4 - Save as xlsm.
Optionally just download PData.xlsm or PPR1978_WorkedExamples.xlsm.
Create a dataset and start calculations. Calculations can be made with or without binary interaction coefficients. User binary interaction coefficients or predictive binaries can be used in calculations.
Functions List:
CreateDataset, CreateDecomposition (flatten these cells after creation to greatly improve calculation speed)
FlashTP (vapor fractions or single phase component composition can be specified with Solver, constant enthalpy/entropy flashes can be accomplished with Solver)
DewT, BubbleT (dew and bubble pressures calculated with DewT and BubbleT by using Solver)
Enthalpy - real & ideal gas mixtures
Entropy - real & ideal gas mixtures
Cv - real & ideal gas mixtures
Cp - real, ideal gas mixtures and liquids
Speed of Sound for real gas mixtures
Joule Thompson Coefficient for real gas mixtures
Derivatives of PPR1978 EOS
Compressibility (z) OF real gas mixtures
Fugacity coefficients of real gas mixtures
Volume of real gas mixtures
References
1 Peng Robinson Equation of State A New Two-Constant Equation of State Ding-Yu Peng, Donald B. Robinson Ind. Eng. Chem. Fundamen., 1976, 15 (1), pp 59–64 DOI: 10.1021/i160057a011 Publication Date: February 1976
2 Spreadsheet for Thermodynamics Instruction Phillip Savage - University of Michigan 'ChE classroom' Fall 1995 http://ufdcimages.uflib.ufl.edu/AA/00/00/03/83/00128/AA00000383_00128_00262.pdf
3 Flash Routine Reference: CHEMENG 120 taught by Professor Musgrave during the Spring '04 term at Stanford. http://documentslide.com/documents/lecture-5-isothermal-flash-calculations.html
4 Implementation of Departure Functions Dr. Phillip Savage - Penn State University http://www.che.psu.edu/department/directory-detail.aspx?LandOn=Gen&q=pes15
5 Bubble and Dew Point Routines adapted from: It’s not as easy as it looks - Revisiting Peng–Robinson equation of state convergence issues for dew point, bubble point and flash calculations
Vamshi Krishna Kandula,(a) John C. Telotte (b) and F. Carl Knopf (corresponding author) (a) (a) Chemical Engineering Department, Louisiana State University, USA E-mail: [email protected] (b) Chemical Engineering Department, Florida A&M University – Florida State University, USA
International Journal of Mechanical Engineering Education, Volume 41, Number 3 (July 2013), © Manchester University Press http://journals.sagepub.com/doi/pdf/10.7227/IJMEE.41.3.2
6 Cubic Equation Solver Code Dr. Tomas B. Co Michigan Tech University https://www.mtu.edu/chemical/department/faculty/co/
7 Bicubic Interpolation Code (for LeeKeslerZ() function) https://mathformeremortals.wordpress.com/
8 modArraySupport module and array handling techniques Chip Pearson, [email protected], www.cpearson.com
9 Derivation of the enthalpy departure function https://shareok.org/bitstream/handle/11244/12606/Thesis-1996-R231e.pdf?sequence=1 by Abhishek Rastogi APPENDIX A A DETAILED DERIVATION OF PENG-ROBINSON EQUATION OF STATE ENTHALPY DEPARTURE FUNCTION
10 PData worksheet physical properties adapted from: Properties Databank 1.0 Pedro Fajardo [email protected] http://www.cheresources.com/invision/files/file/125-physical-properties-ms-excel-add-in/
11 Thermodynamic Properties Involving Derivatives Using the Peng-Robinson Equation of State R.M. Pratt Ph. D. The National University of Malaysia (now Associate Professor of Mathematics and Sciences, Fresno Pacific University) http://ufdcimages.uflib.ufl.edu/AA/00/00/03/83/00150/AA00000383_00150_00112.pdf
12 Chemical Equilibrium by Gibbs Energy Minimization on Spreadsheets Int. J. Engng Ed. Vol. 16, No. 4, pp. 335±339, 2000 Y. LWIN Department of Chemical Engineering, Rangoon Institute of Technology, Insein P. O., Rangoon, Burma. E-mail: [email protected] http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.476.5931&rep=rep1&type=pdf
13 Getting a Handle on Advanced Cubic Equations of State www.cepmagazine.org, November 2002, CEP Chorng H. Twu, Wayne D. Sim and Vince Tassone, Aspen Technology, Inc. http://people.clarkson.edu/~wwilcox/Design/adv-ceos.pdf
14 'VLE predictions with the Peng.Robinson equation of state and 'temperature dependent kij calculated through a group contribution method 'Jean-No¡§el Jaubert., Fabrice Mutelet 'Laboratoire de Thermodynamique des Milieux Polyphas¢¥es, Institut National Polytechnique de Lorraine, Ecole Nationale Sup¢¥erieure des Industries 'Chimiques, 1rue Grandville, 54000 Nancy, France 'Received 24 January 2004; accepted 25 June 2004
15 Prediction of Thermodynamic Properties of Alkyne-Containing Mixtures with the E‑PPR78 Model Xiaochun Xu,† Jean-Noël Jaubert,*,† Romain Privat,† and Philippe Arpentinier‡ †Ecole Nationale Supérieure des Industries Chimiques, Laboratoire Réactions et Génie des Procédés (UMR CNRS 7274), Université de Lorraine, 1 rue Grandville, 54000 Nancy, France ‡Centre de Recherche Paris Saclay, Air Liquide, 1 chemin de la porte des loges, BP 126, 78354 Jouy-en-Josas, France
16 Efficient flash calculations for chemical process design — extension of the Boston–Britt ‘‘Inside–out’’ flash algorithm to extreme conditions and new flash types Vipul S. Parekh and Paul M. Mathias Computers Chem. Engng Vol. 22, No. 10, pp. 1371—1380, 1998 ( 1998 Published by Elsevier Science Ltd.
17 Enthalpy Data https://webbook.nist.gov/chemistry/
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