The design fire involves things like heat output, smoke production and toxic gases generation of a fire.
Information of toxic gases is of great importance in fire hazard assessment, while due to the complex of combustion
process [1, 7] it is difficult to quantify the type and amount of gaseous products generated in real fire. With the aid
of oxygen consumption principle [8], heat release rate can be measured in full-scale or bench-scale tests. Heat
released varying with time becomes the important representation for a design fire. The process of compartment fires
is usually divided into several stages: ignition, growth, flashover, fully developed fire, decay. Taking flashover as
the demarcation point, the fire can also be divided intopre-flashover stage and post-flashover stage [9]. The
development of a fire depends upon a range of variables, such as the ignition source, properties and arrangement of
fire loads, the size and location of compartment openings, and the material properties of enclosure boundary.
Admittedly, actions of occupants and fire protection features installed affect the size and rate of development of a
fire.