General Information
    • ISSN: 2010-0221 (Print)
    • Abbreviated Title: Int. J. Chem. Eng. Appl.
    • Frequency: Quarterly
    • DOI: 10.18178/IJCEA
    • Editor-in-Chief: Prof. Dr. Shen-Ming Chen
    • Executive Editor: Jennifer X. Zeng
    • Abstracting/ Indexing: Chemical Abstracts Services (CAS), Ulrich's Periodicals Directory, CABI, Electronic Journals Library, Google Scholar, ProQuest,  Crossref, EBSCO, CNKI.
    • Email:
  • Apr 25, 2022 News! Vol.13, No.2 has been published with online version.   [Click]
  • Jan 26, 2022 News! Vol.13, No.1 has been published with online version.   [Click]
Prof. Dr. Shen-Ming Chen
National Taipei University of Technology, Taiwan

IJCEA 2010 Vol.1(2): 206-216 ISSN: 2010-0221
DOI: 10.7763/IJCEA.2010.V1.35

A Fuzzy Expert System for Converting Process Flow Diagrams to Piping and Instrumentation Diagrams

Behnam Baloochy and Ramin Bozorgmehry
Abstract—P&IDs (Piping and instrumentations diagrams) are detailed schematic diagrams of process plants. The production of P&IDs is tedious; involving continual checks of correct connectivity, correct equipment selection, etc. A fuzzy expert system has been developed to aid in PFD to P&ID conversion. The system has been constructed using a set of fuzzy rules based upon individual unit operations. It consists of two main parts: database and application program. The database has been designed using Rational Rose software, and it has been implemented using InterBase. The application program has been designed base on object oriented paradigm and UML standard, and then it has been implemented using Borland C++ Builder compiler. Performance of the developed software has been evaluated base Tennessee Eastman benchmark. This case study shows that the software is capable of handling the PFD to P&ID conversion providing a rich knowledge base.

Index Terms—Expert System, Fuzzy Logic, process Flow Diagram, Piping and instrumentation diagram

1,2 Department of Chemical and Petroleum Engineering, Sharif University of Technology, Azadi Street, Tehran, Iran
Corresponding author: Tel.: +982148253285; Fax: +982144739713; E-mail address:


Cite: Behnam Baloochy and Ramin Bozorgmehry, "A Fuzzy Expert System for Converting Process Flow Diagrams  to  Piping  and  Instrumentation  Diagrams,"   International  Journal  of  Chemical  Engineering  and
Applications vol. 1, no. 2, pp. 206-216, 2010. 

Copyright © 2008-2022. International Journal of Chemical Engineering and Applications. All rights reserved