The world's largest, single-site smelter - high ventilation capacity for any given ventilation surface area

EMAL is a joint venture between Dubai Aluminium Company Limited (DUBAL) and Mubadala Development Company (Mubadala), which was established in February 2007 to construct the world's largest, single site aluminium smelter at Al Taweelah, Abu Dhabi, UAE. The project will be built in two phases and utilises Emirati-developed technology. At the end of phase one in 2010, the facility will produce 700,000 tonnes of aluminium per annum, and 1.4 million tonnes annually at the end of phase two.

Emirates Aluminium (EMAL), Abu Dhabi

Project Brief:
Maximum Ventilation

Colt Solution:
Natural Ventilators for the Potrooms, Baking Furnaces and Casthouses

Colt Products:
Labyrinth roof ventilators

Project Details:

Emirates Aluminium (EMAL)

Project Location:

  • Abu Dhabi

Colt Solution:

  • Maximum Gravity Ventilation

Used Colt Product:

Colt has won the tender to provide natural ventilators for the potrooms, baking furnaces and casthouses. The Colt Labyrinth was chosen due to the fact that it has a high coefficient of performance value of 0.22, resulting in a very high ventilation capacity for any given ventilation surface area.

The new smelter will consist of 4 potrooms, each approximately 1,250 m long. The casthouse and anode baking furnace buildings also will be covered with non controllable Colt Labyrinth roof ventilators.

The Labyrinths meet all requirements with regards to wind load, sand load and water resistance. They will ventilate continuously without the possibility of rain getting into the building. For this specific smelter, the Labyrinth is being constructed to marine quality standards, due to the proximity of the smelter to the sea.

Contours of Static Temperature

Safety first

The Colt Labyrinth will be uniquely installed using a purpose-built 'roof car.' Workers drive the vehicle over the opening of the roof, making it the safest method of installation compared to conventional methods. Other advantages of this include reduced time required for installation and minimal disruption to other work within the building.

Benefits for the customer

EMAL will benefit from maximum ventilation and the best price/quality/ performance ratio while achieving a low temperature on the operating floor, thus achieving better working conditions for its employees.

Installation update and award

In November 2009 Colt received the distinction of receiving from Emal its Environment, Health and Safety Performance Certificate for being the best contractor on the site. Click here to view the certificate.