Thermal design and emissions of duct-burners for combined-cycle and cogenerative plants Online publication date: Fri, 13-Apr-2007
by Luciano A. Catalano, Andrea Dadone, Dario Manodoro, Alessandro Saponaro
International Journal of Environmental Technology and Management (IJETM), Vol. 7, No. 1/2, 2007
Abstract: This paper mainly aims at demonstrating that an appropriate thermo-fluid-dynamic design optimisation of duct-burners for combined-cycle and cogenerative plants allows to satisfy restrictive emission limits, while significantly reducing the thermal stresses and the undesired pressure drops. In particular, a detailed discussion on the influence of the TEG composition and of the thermal load, measured for a standard duct-burner, is proposed to justify component failure registered in plant applications. On this basis, the paper also addresses an important design criterion, usually neglected, which allows realisation of long-life and maintenance-free duct-burners, while retaining the fundamental requirement of limiting emissions. Finally, the influence of the thermal load on the emissions produced by the modified duct-burner has been experimentally measured, and analysed, with the aid of some numerical computations.
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