Safety analysis of proton exchange membrane water electrolysis system.
An object of class bn.fit. Refer to the documentation of bnlearn for details.
A discrete Bayesian network to analyze evolving hazard scenarios, such as gas permeation/crossover during proton exchange membrane water electrolysis based on fluid dynamics and electrochemistry of electrolysis. Probabilities were given within the referenced paper. The vertices are:
Operating current density (High, Low);
Formation of hazardous H2/O2 gas mixture (Yes, No);
Formation of peroxide radicals which can cause membrane degradation (Yes, No);
Gas permeation (Yes, No);
Gas recombiner employed (Yes, No);
Relative humidity (High, Low);
Hazardous condition formation (Yes, No);
H2 and O2 recombination at catalyst/membrane surface (Yes, No);
Inhibiting oxygen accumulation (Yes, No);
Inhibiting reaching flammability range (Yes, No);
Operating pressure (High, Low);
Reduction in gas purity (Yes, No);
Surface/bulk treatments of the polymeric membrane (Yes, No);
Sufficient membrane thickness (Yes, No);
Operating temperature (High, Low);
Operating cell voltage (High, Low);
Liu, Y., Amin, M. T., Khan, F., & Pistikopoulos, E. N. (2023). Safety analysis of proton exchange membrane water electrolysis system. Journal of Environmental Chemical Engineering, 11(5), 110772.