Görkem Külah

E-mail
gorkemk@metu.edu.tr
Department
Department of Chemical Engineering
Scopus Author ID
Web of Science Researcher ID
<p>Performance and validation of a radiation model coupled with a transient bubbling fluidized bed combustion model</p>
Yaşar, Mehmet Soner; Selçuk, Nevin; Külah, Görkem (2022-06-01)
None of the transient bubbling fluidized bed combustor (BFBC) models couples the solution of radiative transfer equation with the solution of conservation equations of other transport processes although thermal radiation i...
Thermal stability and SO2 resistance of Pd/Rh-perovskite based three-way catalyst wash-coated on cordierite monoliths
Bayram, Bilal; Önal, Işık; Külah, Görkem (2022-01-01)
The effect of hydrothermal aging and SO2 poisoning on the three-way catalytic performance of dispersed Pd/Rh-based and Pd/Rh perovskite-based catalysts were studied by using a dynamic activity test system that simulates re...
Influence of bag filter ash to spectral thermal radiation in fluidized bed combustors Co-Fired with biomass
Yaşar, Mehmet Soner; Selçuk, Nevin; Külah, Görkem (2021-09-01)
Influence of fine particles collected in bag filter on spectral thermal radiation is investigated in the freeboard of a 0.3 MWt atmospheric bubbling fluidized bed combustion test rig where lignite, lignite/olive residue, a...
Influence of soot on radiative heat transfer in bubbling fluidized bed combustors
Yaşar, Mehmet Soner; Selçuk, Nevin; Külah, Görkem (2021-08-01)
The effect of soot particles and aggregates on radiative heat transfer in bubbling fluidized bed combustors is investigated. For this purpose, a soot radiative property model based on Rayleigh scattering theory is coupled ...
Gas velocity distribution in conical spouted beds with high-density particles
Doğan, Neslin; KÖKSAL, MURAT; Külah, Görkem (2021-03-01)
Local gas velocity measurements were conducted utilizing a Pitot tube in two small-scale (D-c = 150 mm, gamma = 30 degrees, 60 degrees) and one large-scale (D-c = 250 mm, gamma = 66 degrees) conical spouted beds. Three dif...
Performance of banded SLW-1 in presence of non-gray walls and particles in fluidized bed combustors
Yaşar, Mehmet Soner; Selçuk, Nevin; Külah, Görkem (Elsevier BV, 2020-12-01)
In this study, banded one gas spectral line-based weighted sum of gray gases (banded SLW-1) model is coupled with a 3-D radiation code based on method of lines (MOL) solution of discrete ordinates method (DOM) for freeboar...
Assessment of improved banded model for spectral thermal radiation in presence of non-gray particles in fluidized bed combustors
Yaşar, Mehmet Soner; Ozen, Guzide; Selçuk, Nevin; Külah, Görkem (2020-07-01)
In this study, Bordbar's banded model is coupled with a 3-D radiation model based on method of lines (MOL) solution of discrete ordinates method (DOM) for modeling of radiative heat transfer in freeboard of METU 0.3 MWt AB...
Comment on "Deciphering conical spouted bed hydrodynamics using high intensity microphone"
Yaman, Onur; KÖKSAL, MURAT; Külah, Görkem (Elsevier BV, 2019-11-01)
Modelling of FBC of lignite with high nitrogencontet cotton Residue
Yaşar, Mehmet Soner; Selçuk, Nevin; Külah, Görkem (2019-06-16)
A comprehensive system model, previously developed for prediction of combustion behaviors of Turkish lignites, lignite/hazelnut shell, and lignite/olive residue blends in a 0.3-MWt atmospheric bubbling fluidized bed combus...
Gas Velocity Distributions in Conical Spouted Beds with High Density Particles
Güler, Neslin; Külah, Görkem (null; 2019-05-26)
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