Research on Dynamic Flammability for Mixture Containing Lower Boiling Point Flammable Components During Store and Transportation

According to thermodynamic and numerical principle,dynamic flammability for mixtures containing lower boiling point flammable components during store and transportation has been inverstigated.The possibility of fire and explosion is relevant to component properties,concentration of the mixture,continual time of leakage and temperature of the system and environment.The results show that for vapor phase leaking in the low temperature the initial flammable concentration may exceed the critical flammable concentration.So the possibility of the burning explosion accident can not be excluded.The mixture R32/134a has been taken as an example to illustrate the loaw of dynamic flammability for this kind of mixture and it has referable value to prevent fire accident.