WIT Press

Local And Global Impact Considerations On The Turbo Gas Combined Cycle


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P. Baggio, A. Cemin, D. Cocarta, A. Gasparella & M. Ragazzi


Studies on the impact on public health from macro and micro pollutants released from significant punctual sources have shown a remarkable development during the last years. These depend on the possibility of associating information on each pollutant to multiple pathways of exposition of the population present in the area of interest. In the field of energy generation the implementation of turbo-gas plants has not always have found a favourable welcome from the local population, nevertheless they have shown improvements compared to conventional systems. The present work wants to analyse in details some aspects related to the most recent debates on this topic, in particular pointing out the role of the introduction of a selective catalytic reduction for the removal of NOx from the off-gas of the turbo gas plants. Aspects related to ammonia release, the secondary particulate formation and the heavy metal release (in particular Vanadium) are dealt with, both in terms of global balance and in terms of local balance. At a local scale, the present work is faced with the role of the various methods of pollutant release (off-gas velocity, temperature, stack height). Keywords: environmental impact, gas turbine, incineration, selective catalytic reduction. 1 Introduction Production in the electric energy sector is based more and more on the realization of the new turbo gas combined cycle or the conversion of existing plants to this technology. Thanks to the contained costs of management, elevated


environmental impact, gas turbine, incineration, selective catalytic reduction.