Hatfield TunnelHatfield Tunnel

Project name
Tunnel Ventilation for Hatfield Tunnel
Year
2016
Location
Uk
Industry category
Road Tunnel Infrastructure
Fan model
JZRi 10-30/4
Fan type
100% Reversible Jet fans
Fan impeller diameter
2,000 mm and 1,600 mm
Quantity
54 Jet fans
Total installed power
1,620 kW

PROJECT DESCRIPTION

The project: Hatfield tunnel for A1M Motorway through the Hertfordshire town of Hatfield.

Scope of Supply: Zitrón’s scope of works for the project comprises the design, delivery, installation, and commissioning of the tunnel jet fans, the fans were designed to withstand the operation under fire conditions and rated for 250 °C / 2 hours operation.

Due to the extremely environmental conditions, the tunnel ventilation system was fully refurbished, and it included all the jet fans replacement to work properly under these environmental conditions.

Zitron’s challenge was to design and select the proper materials and manufacturing process to ensure the 50 years design life under these conditions. The installation and commissioning of the entire ventilation system to reduce as much as possible the tunnel operation was one of the project keys to complete it successfully.

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