#China #Shenzhen #fire safety #CLOU #Aqua C2.5

CLOU's Technical Report on Advanced Fire Safety Systems

CLOU, a leading Tier 1 provider of energy storage solutions, has recently announced the release of a comprehensive technical report detailing their innovative active ventilation and explosion-proof systems. This important document comes on the heels of an extensive 59-hour fire test conducted on their Aqua C2.5 immersion-cooled battery energy storage system (BESS), marking a significant milestone in fire safety for energy storage technologies.

In April of this year, CLOU conducted a large-scale fire test, under the observation of CSA Group, to evaluate how their Aqua C2.5 system performs under extreme conditions. This test involved four fully loaded containers, representing a total energy storage capacity of 20 MWh, to simulate realistic conditions in high-density installations. The first container was intentionally ignited, maintaining combustion for nearly 60 hours, with internal temperatures exceeding 1300 °C. Remarkably, no fire suppression systems needed to be activated during the test, demonstrating the inherent fire resistance of a single container and the efficacy of CLOU’s active ventilation system.

As the energy storage industry grapples with safety concerns, highlighted by numerous fire and explosion incidents across the globe, CLOU has stepped up its commitment to safety. North America, in particular, adheres to stringent energy storage safety standards, guided by national and international regulations like NFPA 855, NFPA 68, UL 9540, and CSA/ANSI C800. These regulations have influenced CLOU's comprehensive, multilayered fire protection strategy, detailed in their technical report, to protect client assets throughout their life cycle.

Key Features of CLOU's Fire Safety System

The report elucidates several key features of CLOU's advanced fire safety protocols:
1. Early Alert and Thermal Leak Detection: The Building Management System (BMS) actively monitors voltage and temperature in real-time, triggering alarms and disconnecting circuits to prevent the escalation of incidents. Sensors instigate active ventilation systems to mitigate explosion risks prior to a fire outbreak.
2. Dual Layer Fire Suppression: This innovation surpasses standard fire extinguishing methods by employing water mist for rapid cooling, reducing the risk of re-ignition, while working in harmony with the ventilation system to decrease flammable gas concentrations.
3. Explosion Protection Mechanisms: CLOU's installations ensure that flammable gas concentrations are kept below 25% of the Lower Explosive Limit (LEL), preventing explosive conditions at the source as per NFPA 69 standards. Strategic structural designs direct explosion pressures to minimize chain reactions.
4. Ventilation Design for Safety: The system incorporates five natural exhaust vents and two intakes designed to maintain flammable gas levels below the critical threshold. These vents also serve as emergency release mechanisms during explosions, channeling flames upward to deter fire spread within the container while ensuring continuous ventilation during thermal pressure fluctuations.

With these innovations, CLOU demonstrates its ongoing commitment to enhancing industry safety standards. The technical report not only serves as a reference for energy developers, regulators, and asset owners aimed at bolstering long-term safety and reliability but also reaffirms CLOU's role as a forward-thinking leader in energy storage solutions.

To explore CLOU's findings further, the technical report is available for download at CLOU's official website. A video of the large-scale fire test is also available for viewing here.