Ma'aden
The Ras Az Zawr site comprises a plot of land 90km north of Jubail on the coast of the Arabian Gulf. Part of the site is to be used for the construction of a new alumina refinery, aluminium smelter, rolling mill and related infrastructure for the Aluminium Complex. Bauxite ore transported by rail to Ras Az Zawr will be refined to produce 1.8 million mtpy (metric tons per year) of alumina, which will in turn be processed in the smelter on site to produce 740,000 metric tonnes per year of aluminium.
Due to the location of the new project, these factors have received Colt’s special attention:
- Ambient design temperature +55°C of during summer
- Typical Middle East environment: marine conditions and dust
- The use of high material quality aluminium/stainless steel fasteners.
In order to predict in advance the climate conditions inside the potroom while the metal is being produced, Colt carried out a survey using Computational Fluid Dynamics (CFD) to show the capability of the roof ventilators. The CFD simulates flows, heat transfers and temperatures on different levels within the buildings. The new smelter will benefit from maximum ventilation and the best price/quality performance ratio while achieving low temperatures on the operating floor, thus creating better working conditions for the employees.
Large modules of the Labyrinth roof ventilator will be assembled at ground level and lifted to the roof. The unique design of the modules makes it possible to do all the fixing of the ventilators to the supporting steel structure from the outside. This ensures that no works are necessary inside the building and results in reduced erection time and minimal disruption to work within the building.
