Open AccessPLC-Based Safety Instrumented System of a Boiler using HAZOP
Author(s) -
Mahfoud Chafai,
Abderrahmane Ouadi,
Hamid Bentarzi
Publication year - 2018
Publication title -
algerian journal of signals and systems
Language(s) - English
Resource type - Journals
eISSN - 2676-1548
pISSN - 2543-3792
DOI - 10.51485/ajss.v3i1.53
Subject(s) - hazard and operability study , boiler (water heating) , actuator , reliability engineering , engineering , system safety , safety instrumented system , control system , automotive engineering , control engineering , work in process , waste management , operations management , operability , electrical engineering
HAZOP Analysis is used to determine great deviations which will affect the operational safety of a boiler of an existing petrochemical plant that may affect on persons, material and the environment. PLC is proposed to provide the safety function to fit into the overall machine control system as a safety-related part. It reads from the temperature, pressure sensors via its input interface modules and outputs commands in the case of critical deviation via the output module to the final control elements such as actuators allowing an improvement in the safety of the overall boiler system.