91 Category 3: Industrial Buildings and Plants 3 Owner Doosan Architect CMI Energy HRS General Contractor PT. Indonesia Power Engineering Office Allcons Industry s.r.o. Construction Period 01/2017 - 05/2017 The Grati vertical heat recovery boiler project is a power regeneration facility with a capacity of 150 MW. The design includes three boilers with advanced highly efficient technology for heat recovery which helps to increase the energy production. The challenge was to design the structure with maximal material efficiency on site and considering dynamic effects such as earthquakes and vortex shedding. The whole boiler with an integrated stack is 50 m high, 31 m x 15 m wide. There are no bracing beams inside the casing where the flow of hot gas passes through the group of 855-ton heavy heat exchangers. The main drum platform which supports two heavy steam drums is located above the corner columns. The combination of boiler dimensions – high and narrow in shape – together with heavy heat exchangers and the earthquake loads leads to the complicated design task that requires the utilisation of high cross-sections to ensure adequate stiffness and strength. With SCIA Engineer we were able to create a powerful calculation model where all members were designed with respect to IBC standards and requirements over the structure lifetime. Moreover, with BIM interfaces we were able to make drawings faster and much more easily in comparison with traditional methods. Allcons Indrustry s.r.o. Contact Jan Vopička Address U Bulhara 3 11000 Praha, Czech Republic Website www.allcons.cz Allcons Industry s.r.o. is an engineering company engaged in the field of steel structures. The main sphere of its activities is the preparation of design and structural documentation for steel structures of civil buildings, technological structures for power generating industry, chemical and steel industries. The activities of the company include all works from the preparation of studies up to the creation of workshop documentation, including simulations of structural behaviour, manufacturing of steel structures as well as manufacture and designer supervision. Power Regeneration Facility - Grati, Indonesia
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