Failure risk assessment of coal gasifier based on the integration of bayesian network and trapezoidal intuitionistic fuzzy number-based similarity aggregation method (TpIFN-SAM).
An object of class bn.fit. Refer to the documentation of bnlearn for details.
A discrete Bayesian network for the failure-risk assessment of process system. Probabilities were given within the referenced paper. The vertices are:
Abnormal flow rate of coal water (Occurred, NotOccured);
Abnormal liquid level (Occurred, NotOccured);
Abnormal flow rate of quench water (Occurred, NotOccured);
Abnormal temperature (Occurred, NotOccured);
Anti-corrosion layer damaged (Occurred, NotOccured);
Burner damaged (Occurred, NotOccured);
Corrosion failure (Occurred, NotOccured);
Cracking in the quench ring or vertical pipe (Occurred, NotOccured);
Deliberate destruction (Occurred, NotOccured);
External corrosion (Occurred, NotOccured);
Slag opening blocked by molten furnace bricks (Occurred, NotOccured);
Gasifier abnormality (Occurred, NotOccured);
Gasifier failure (Occurred, NotOccured);
Liquid-level gauge damaged by blockage (Occurred, NotOccured);
High CO2 content (Occurred, NotOccured);
High concentration of coal slurry (Occurred, NotOccured);
High flow rate (Occurred, NotOccured);
High flow rate of coal slurry (Occurred, NotOccured);
High H2O content (Occurred, NotOccured);
High H2S content (Occurred, NotOccured);
High oxygen-flow rate (Occurred, NotOccured);
Human organization factors (Occurred, NotOccured);
Improper operation (Occurred, NotOccured);
Insulation layer damaged (Occurred, NotOccured);
Internal corrosion (Occurred, NotOccured);
Leakage of drain valve of quench water (Occurred, NotOccured);
Low concentration of coal slurry (Occurred, NotOccured);
Low flow rate of coal slurry (Occurred, NotOccured);
Low liquid rate in quench chamber (Occurred, NotOccured);
Low oxygen-flow rate (Occurred, NotOccured);
Medium content (Occurred, NotOccured);
Slag opening blocked by large pieces of slage (Occurred, NotOccured);
Pre-job training is not up to standard (Occurred, NotOccured);
Pressure fluctuation (Occurred, NotOccured);
Temperature sensor damaged (Occurred, NotOccured);
Temperature sensor damaged (Occurred, NotOccured);
Too-high temperature (Occurred, NotOccured);
Too-low temperature (Occurred, NotOccured);
Unattended/unsafe supervision (Occurred, NotOccured);
Unintentional destruction (Occurred, NotOccured);
Liu, Y., Wang, S., Liu, Q., Liu, D., Yang, Y., Dan, Y., & Wu, W. (2022). Failure risk assessment of coal gasifier based on the integration of bayesian network and trapezoidal intuitionistic fuzzy number-based similarity aggregation method (TpIFN-SAM). Processes, 10(9), 1863.