A KNOWLEDGE-BASED EXPERT SYSTEM FOR SILICATE GLASS PLANT MAINTENANCE
A Knowledge-Based Expert System (KBES) which will aid diagnosis of plant faults within Silicate Glass Plant domain was developed. Knowledge was elicited using a combination of techniques (protocol-generation, teach and teach back, protocol analysis techniques) and root cause failure analy-sis was used to identify primary cause of fault as they were presented by the domain experts. The elicited knowledge were structured and coded in form of rules using C Language Integrated Produc-tion System â€žCLIPS SHELLâ€Ÿ. The KBES developed comprised a main system and four sub-systems with utility files. Performance evaluation was carried out on the KBES for consistency and exactness. Field tests were conducted and the data acquired were analyzed using some maintenance parame-ters. Results obtained when the KBES was used in the plantâ€Ÿs faults diagnosis compared with when it was not used showed that with expert system in use, an average reduction in plant downtime of 36.62% was obtained for field test carried out. Also, 24.28% and 34.03% were obtained for average increase in Plant Availability and Total Plant Maintenance Productivity respectively.