Recommendations for explosion-proof fans for energy storage containers

Can a mechanical exhaust ventilation system prevent explosions in Li-ion-based stationary battery energy storage systems?

This work developed a performance-based methodology to design a mechanical exhaust ventilation system for explosion prevention in Li-Ion-based stationary battery energy storage systems (BESS).

Can explosion prevention systems mitigate gas concentrations according to NFPA 69 standards?

Simulations are often preferred to determine if an explosion prevention system can effectively mitigate gas concentrations according to NFPA 69 standards. CFD methodology can assist with the performance-based design of explosion prevention systems containing exhaust systems.

Can CFD be used to design an explosion prevention system?

CFD methodology can be extended to design an explosion prevention system for any ESS enclosure. Results can also provide the controlled release rate of flammable and toxic materials which is useful information for first responders and to assess environmental impacts.

Should deflagration venting be used as passive explosion protection?

In general, using deflagration venting as passive explosion protection in addition to an active system has multiple benefits due to the nature of the battery failure event, which involves a rapid release of flammable gases.

Does a lithium-ion energy storage unit need explosion control?

To address the safety issues associated with lithium-ion energy storage, NFPA 855 and several other fire codes require any BESS the size of a small ISO container or larger to be provided with some form of explosion control. This includes walk-in units, cabinet style BESS and buildings.

Can explosion prevention system remove battery gas from the enclosure?

The evolution of battery gas in Fig. 13, Fig. 14 shows that the explosion prevention system can remove the battery gas from the enclosure. The 3D contours of battery gas can also help identify local spots where battery gas can concentrate.