P
Panagiotis Grammelis
Researcher at National Technical University of Athens
Publications - 139
Citations - 3952
Panagiotis Grammelis is an academic researcher from National Technical University of Athens. The author has contributed to research in topics: Combustion & Biomass. The author has an hindex of 31, co-authored 120 publications receiving 3355 citations.
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Pyrolysis characteristics and kinetics of biomass residuals mixtures with lignite
TL;DR: In this paper, the effect of material particle size and heating rate was investigated both on the pyrolysis behavior and reaction kinetics, over the temperature range of 25-850 °C.
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Pyrolysis kinetics and combustion characteristics of waste recovered fuels
TL;DR: In this paper, a non-isothermal thermogravimetric analyser (TA Q600) operated at ambient pressure was used for both the pyrolysis and combustion experiments.
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Thermogravimetric studies of the behavior of lignite–biomass blends during devolatilization
TL;DR: In this article, the behavior of Greek pre-dried lignite, four biomass materials and their blends in the devolatilization stage was investigated by thermogravimetry.
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An advanced EMMS scheme for the prediction of drag coefficient under a 1.2 MWth CFBC isothermal flow—Part II: Numerical implementation
A. Nikolopoulos,Konstantinos Atsonios,Nikos Nikolopoulos,Panagiotis Grammelis,Emmanuel Kakaras +4 more
TL;DR: In this article, an energy minimization multi-scale (EMMS) analysis is applied to evaluate the particles tendency to aggregate in clusters and describe the effects of this complicated mechanism on the main characteristics of the induced multiphase flow field.
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Numerical investigation of the oxy-fuel combustion in large scale boilers adopting the ECO-Scrub technology
TL;DR: In this paper, the authors present a three-dimensional numerical investigation of a pulverized-fuel, tangentially-fired utility boiler located at Florina/Greece under air, partial and full oxy-fuel conditions.