Nujiang Prefecture Energy Storage Fire Extinguishing System

Which fire extinguishing agent has a poor cooling capacity?

In addition, gaseous fire-extinguishing agents, dry powder and aerosol possess poor cooling capacity. Among other fire-extinguishing agents, the cooling ability of aerosol is worst, followed by dry powders, HFC-227ea, CO 2 and Novec 1230. The wettability is the index of the fire-extinguishing agent to moisten the surface of battery pack.

How fire suppression technology can improve the fire-extinguishing and cooling effect?

Appropriate fire suppression technology strategy can improve the fire-extinguishing and cooling effect of fire-extinguishing agent and inhibit the re-ignition of LIBs fire. The fire suppression strategies can be summarized as follows:

Which fire extinguishing agent is not suitable for Lib fire?

Similar to these gaseous fire-extinguishing agents, solid fire-extinguishing agents such as dry powder are not suitable for extinguishing LIB fires due to their poor cooling effect. While C 6 F 12 O and liquid nitrogen possess excellent extinguishing and cooling capacity, which are suitable for extinguishing LIBs fire in confined environment.

Can Lib fire be suppressed by conventional fire-extinguishing agents?

In addition, the transfer of heat from elevated temperature cells to adjacent cells may lead to thermal runaway (TR) propagation in the battery module thereby; leading to the expansion of LIB fire accidents [22, 23]. Therefore, conventional fire-extinguishing agents are difficult to suppress LIBs fire.

Can water based fire extinguishing agents be used for Lib fire?

Water-based fire-extinguishing agents are often reported to be used to extinguish LIBs fire due to their excellent cooling effect, natural and low cost. However, the electric conductive is the biggest challenge for water-based fire-extinguishing agents used for LIBs fire.

Can a Lib fire re-ignite without a fire extinguishing agent?

Even if LIBs fire can be rapidly extinguished, LIBs are easy to re-ignite without the continuous release of the extinguishing agent. For example, some researches have indicated that some gas fire-extinguishing agents could extinguish the LIBs fire rapidly, but the re-ignition phenomenon could be observed after the agent was terminated .