Abu Dhabi chooses Italian excellence: the Mina Zayed Tunnel protected by Tema Sistemi's innovative water mist system

Tema Sistemi completed one of its major works abroad, protecting the Mina Zayed Tunnel in Abu Dhabi with the Aquatech® high-pressure water mist system.

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Mina Zayed Tunnel: a key infrastructure for urban mobility

The Mina Zayed Tunnel is a 1,3-kilometer-long modern road infrastructure designed to improve the road connection between the Sheikh Khalifa Bridge, Sheikh Zayed Tunnel, and Corniche Road. The tunnel, which later branches into two independent tunnels, is designed to support extremely heavy traffic: five lanes in each direction, with an estimated capacity of 10,000 vehicles per hour per direction. It is a strategic work to fluidize urban traffic and increase the efficiency of the transportation network in the Emirates capital.

The Aquatech® fire protection system: technology, safety and reliability

To ensure maximum fire protection along the entire infrastructure, Aquatech®, the high-pressure water mist system designed and manufactured by Tema Sistemi SpA, was chosen.

This advanced technology enables rapid and extremely effective action in the event of a fire, ensuring immediate cooling and timely extinguishment of the flames.

An additional strength of the system is its human safety: the water mist delivered is not harmful and can be activated even in the presence of people inside the tunnel, ensuring protection without compromising the safety of the occupants.

In addition, the system is fully integrated with the fire detection system, which enables real-time monitoring of rising temperatures and precise location of the exact spot of the event. Once the emergency is detected, the Aquatech system is automatically activated, taking action not only on the affected area, but also on adjacent areas, in order to quickly contain the fire and prevent its spread.

Once again, Tema Sistemi confirms its expertise in fire protection for road tunnels: back in 2022 it successfully tested its water mist system additivated with FireFive®, a UL-certified wetting agent effective against Class A, B, D and F fires.Subjected to tests in the presence of UL and RINA, FireFive® demonstrated excellent performance in the tunnel environment, proving ideal for complex scenarios with heterogeneous materials including tires, notoriously among the most difficult to extinguish.

A tailor-made system for total protection

The entire tunnel was protected by a total of 2,659 Aquatech model TS-123 nozzles, custom-designed and prototyped for this specific application.
Each element was designed to meet the extreme conditions and continuous protection needs unique to such a complex infrastructure.

The system is capable of delivering up to 3,000 liters per minute, thanks to 24 pumps divided into 3 pumping groups, ensuring maximum efficiency. Completing the system are a booster pump and a compensation unit, designed to be mutually redundant, ensuring operational continuity even if one of the main components fails.

The tunnel has been divided into 114 zones, each of which is controlled by a 2” zone valve, entirely designed and manufactured by Tema Sistemi. This enables widespread control and modular management of protection, increasing the reliability of the entire system in each section of the tunnel.

Timely monitoring

The system is managed by 1 cabinet installed in the pump room with PLC cabinet equipped with a touch HMI panel through which the operating states of the system devices can be monitored in real time.

SYSTEM CERTIFICATION and PROJECT CONCLUSION

The system was tested in the presence of UL surveyors who certified its effectiveness.

With this project, Tema Sistemi confirms its ability to address the most complex challenges in the field of fire safety with expertise and innovation, bringing the excellence of made in Italy to one of the most important infrastructures in the Middle East.

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