Search Results - "Grammelis, P"

Pyrolysis kinetics and combustion characteristics of waste recovered fuels by Grammelis, P., Basinas, P., Malliopoulou, A., Sakellaropoulos, G.

“…Alternative fuels, such as biomass and refuse derived fuels tend to play an increasingly important role in the European energy industry. Co-firing fuels…”
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Integration of calcium looping technology in existing cement plant for CO2 capture: Process modeling and technical considerations by Atsonios, K., Grammelis, P., Antiohos, S.K., Nikolopoulos, N., Kakaras, Em

“…[Display omitted] •Process integration of cement plant with CaL including CO2 purification and capture.•Low S fuels are preferable for CaL system in terms of…”
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Application of an advanced coupled EMMS-TFM model to a pilot scale CFB carbonator by Zeneli, M., Nikolopoulos, A., Nikolopoulos, N., Grammelis, P., Kakaras, E.

“…This paper focuses on the CFD simulation of a CFB pilot-scale carbonator of a 1MWth DFB installation located at TU Darmstadt (TUD). The carbonator riser height…”
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Implementation of the Power to Methanol concept by using CO2 from lignite power plants: Techno-economic investigation by Kourkoumpas, D.S., Papadimou, E., Atsonios, K., Karellas, S., Grammelis, P., Kakaras, E.

“…The scope of this study is the techno-economic evaluation of the Power to Methanol (PtM) concept, valorising CO2 that comes from high CO2 emitting…”
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Pyrolysis characteristics and kinetics of biomass residuals mixtures with lignite by Vamvuka, D., Kakaras, E., Kastanaki, E., Grammelis, P.

“…Biomass residues in the Mediterranean region come mainly from agricultural and agro-industrial activities and forest byproducts. The paper presents the results…”
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Numerical investigation Greek lignite/cardoon co-firing in a tangentially fired furnace by Karampinis, E., Nikolopoulos, N., Nikolopoulos, A., Grammelis, P., Kakaras, E.

“…► Cardoon/lignite co-firing CFD model for tangentially-fired pulverized-fuel boiler. ► Co-firing up to 10% thermal basis has no negative effect on operation. ►…”
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High-resolution 3-D full-loop simulation of a CFB carbonator cold model by Nikolopoulos, A., Nikolopoulos, N., Charitos, A., Grammelis, P., Kakaras, E., Bidwe, A.R., Varela, G.

“…This work focuses on the 3D full-loop CFD isothermal simulation of a transparent plexi-glass small-scale CFB carbonator built by IFK for the hydrodynamic…”
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Numerical examination of an operationally flexible lignite-fired boiler including its convective section using as supporting fuel pre-dried lignite by Drosatos, P., Nikolopoulos, N., Nikolopoulos, A., Papapavlou, Ch, Grammelis, P., Kakaras, E.

“…This work simulates the main furnace and the convective section of the lignite-fired Ag. Dimitrios V boiler located in Kozani, Northern Greece, under three…”
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Simulation of the reacting flow within a pilot scale calciner by means of a three phase TFM model by Zeneli, M., Nikolopoulos, A., Nikolopoulos, N., Grammelis, P., Karellas, S., Kakaras, E.

“…The aim of the present work is the 3-D CFD simulation of the reacting flow inside a pilot-scale calciner, which is part of the 1MWth dual fluidized bed (DFB)…”
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An advanced EMMS scheme for the prediction of drag coefficient under a 1.2 MWth CFBC isothermal flow—Part I: Numerical formulation by NIKOLOPOULOS, A, PAPAFOTIOU, D, NIKOLOPOULOS, N, GRAMMELIS, P, KAKARAS, E

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Process Integration of a Polygeneration Plant with Biomass/Coal Co-pyrolysis by Atsonios, K, Kougioumtzis, M.−A, Grammelis, P, Kakaras, E

“…The concept of co-pyrolysis of biomass and conventional fossil fuel offers various advantages such as higher liquid product yield and higher char conversion…”
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A decoupled approach for NOx–N2O 3-D CFD modeling in CFB plants by Nikolopoulos, A., Malgarinos, I., Nikolopoulos, N., Grammelis, P., Karrelas, S., Kakaras, E.

“…[Display omitted] •A decoupled 3-D NOx–N2O CFD model for CFBCs is developed and validated.•NOx–N2O heterogeneous and homogeneous reactions are…”
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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 by NIKOLOPOULOS, A, ATSONIOS, K, NIKOLOPOULOS, N, GRAMMELIS, P, KAKARAS, E

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Modelling of biomass gasifier and microturbine for the olive oil industry by Vera, D., Jurado, F., Panopoulos, K. D., Grammelis, P.

“…SUMMARY The olive oil industry generates several solid wastes. Among these residues are olive tree leaves, prunings, and dried olive pomace (orujillo) from the…”
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Parametric investigation of a renewable alternative for utilities adopting the co-firing lignite/biomass concept by Nikolopoulos, N., Agraniotis, M., Violidakis, I., Karampinis, E., Nikolopoulos, A., Grammelis, P., Papapavlou, Ch, Tzivenis, S., Kakaras, E.

“…(a) Induced velocity field and (b) NOx concentration spatial distribution at burner levels for cases A. •CFD model for co-firing of biomass/lignite in a…”
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Pyrolysis and combustion behaviour of coal–MBM blends by Skodras, G., Grammelis, P., Basinas, P.

“…In the present work, thermogravimetric analysis was employed in order to investigate the behaviour of MBM and their blends with Greek brown coal, under…”
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Thermogravimetric studies of the behavior of lignite–biomass blends during devolatilization by Kastanaki, E, Vamvuka, D, Grammelis, P, Kakaras, E

“…The behaviour of Greek pre-dried lignite, four biomass materials and their blends in the devolatilization stage was investigated by thermogravimetry. Biomass…”
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Effects of biomass co-firing with coal on ash properties. Part I: Characterisation and PSD by Grammelis, P., Skodras, G., Kakaras, E.

“…The alterations of ash quality and utilisation aspects when co-firing coal with biomass were investigated. Co-combustion tests were performed in lab and…”
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Numerical investigation and comparison of coarse grain CFD – DEM and TFM in the case of a 1 MW th fluidized bed carbonator simulation by Nikolopoulos, A., Stroh, A., Zeneli, M., Alobaid, F., Nikolopoulos, N., Ströhle, J., Karellas, S., Epple, B., Grammelis, P.

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Numerical investigation of the grid spatial resolution and the anisotropic character of EMMS in CFB multiphase flow by Atsonios, K., Nikolopoulos, A., Karellas, S., Nikolopoulos, N., Grammelis, P., Kakaras, Em

“…During the last years, considerable efforts have been made for the optimization of numerical methods simulating the operation of the Circulating Fluidized Bed…”
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