Numerical Simulation Study of Li-ion Battery Electric Bicycle Fire in Multistory Staircases
In order to investigate the potential fire risks of electric bicycles equipped with lithium-ion batteries in multi-storey residential buildings,numerical simulations of electric bicycle fires under different operating conditions were performed by u-sing the Fire Dynamics Simulator(FDS).The dynamic changes of parameters such as visibility,smoke temperature,and CO concentration during fires were investigated,and the diffusion characteristics of fire smoke were studied in detail.The re-search has shown that electric bicycle fires develop rapidly,with the smoke concentration increasing rapidly in the early sta-ges of the fire;the battery charge status is not the main factor determining the severity of electric bicycle fires;under restrict-ed ventilation conditions,the temperature and smoke accumulation risk inside the building are relatively high,and the danger level is greater on lower floors.The research results can be used as a reference for relevant departments and electric vehicle manufacturers,helping them to formulate more effective preventive measures and emergency response plans,and to help per-sonnel escape in similar types of fires.
electric bicyclefireLi-ion batteriesnumerical simulationfire dynamics simulator(FDS)
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