VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Spatially selective EGR - a novel approach for heat release control in continuous combustion [Elektronski vir]
    Seljak, Tine, strojnik ...
    To support the ongoing energy transition and minimize the environmental footprint of combustion related technologies, the paper presents a novel approach for combustion control in gas turbines and ... burners. It relies on spatially targeted injection of inert components in the spray core where existent concepts fail to deliver the desired dilution rate and are unable to fully govern the spatial distribution of heat release rates. Combustion process control is thus possible by actively adjusting the composition and mass flow of spatially selective EGR, leading to an ultimate fuel-flexible concept which is capable of adjustments to heterogeneous fuels, their reactivity and physical properties. The proof of concept is demonstrated in a gas turbine combustion chamber first by investigating the isolated effects of spatially selective EGR, its comparison to external EGR and a combination of both. The results confirm the superiority of the approach as spatially selective EGR is capable of extensive reduction of NO emissions with no observable penalty on CO emissions and even further reduction of PM emissions. Furthermore, the concept proved transferrable together with all its benefits also when external EGR is introduced, where possibility for control and further reduction of NO emissions with no observed CO penalty maintains possible. Simultaneous exploitation of spatially selective, as well as external EGR, thus forms a fully controllable concept - spatially selective dilution control (SDCC), which enables extensive adjustability of dilution rates throughout the primary zone of combustion chamber. The confirmation of applicability of the novel approach and its potential to influence the local conditions is opening up a series of possible uses, as an original design feature for future fuel-flexible systems or as a retrofit approach in existent combustion systems.
    Vir: 16th SDEWES Conference on Sustainable Development of Energy, Water and Environment Systems [Elektronski vir] : 10 - 15 October 2021, Dubrovnik, Croatia (F. 1-24)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2021
    Jezik - angleški
    COBISS.SI-ID - 86042627

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