Safety analysis and enhancement strategies of proton exchange membrane fuel cell power plants
Proton exchange membrane fuel cell(PEMFC)power plants involve the preparation,storage,transportation,and use of a large amount of high-pressure hydrogen,consisting of many equipment and complex processes.Thus,its safe operation is crucial.Existing research lacks a systematic analysis of the safety of PEMFC power plants.This work established a complete analysis framework for a PEMFC power station using Hazard and Operability Analysis(HAZOP),Event Tree Analysis,and Risk Matrix Analysis.The safety of each subsystem of the power station was analyzed,and probability calculations were carried out.Results indicate many risks,and the risk probability is generally high in the power station,posing significant safety concerns.The power generation system shows the highest risk and lowest safety among various subsystems.Among all the risks in the power station,the risk of abnormal equipment pressure is the most common,accounting for nearly one-third.Furthermore,the probability of accidents can be reduced to a socially acceptable risk range by setting up basic protective layers such as alarms,heat dissipation,current limiting,drainage devices,and safety interlock systems(SIS).These results can provide a reference for the analysis methods and control measures of safety risks in PEMFC power plants.
PEMFC power stationHAZOP analysisEvent tree analysisSIS
NETL
NSTL
万方数据
