Browsing by Author "Kirkil, Gökhan"
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A Comparative Study of Energy Models for Turkish Electricity Market Using LEAP
Massaga, Daniel Julius; Kirkil, Gökhan; Çelebi, Emre (IEEE Computer Society, 2019)Fossil fuel thermal power plants constitute a large part of the Turkish electricity generation capacity. Turkish government has been developing several energy policy documents to evaluate how various renewable energy sources ... -
Decarbonization pathways for Turkish power system using the leap model Leap modeli kullanılarak Türkiye elektrik sistemi için dekarbonizasyon yolları
Özer, Fatma Ece (Kadir Has Üniversitesi, 2021)The negative impact of GHG released into the atmosphere on global warming cannot be ignored. Fossil-fueled power plants constitute a large part of Turkey's electricity production, as every country has a growing economy. ... -
Decarbonization potentials in the Turkish energy intensive industries
Ünlü, Begüm (Kadir Has Üniversitesi, 2021)Biyoçeşitlilik ve iklim krizi ile mücadelede uluslararası kuruluşların önderliğinde küresel ısınmayı minimumda tutmak üzere bir dizi önlem alınmaktadır. Önlemlerden biri olan sera gazı emisyonlarının azaltılması için ... -
Detached eddy simulation of shallow mixing layer development between parallel streams
Kirkil, Gökhan (Elsevier Science Bv, 2015)Results of a high resolution Detached Eddy Simulation (DES) are used to characterize the evolution of a shallow mixing layer developing between two parallel streams in a long open channel with a smooth flat bed and medium ... -
Development of a parallel 3D navier–stokes solver for sediment transport calculations in channels
Kirkil, Gökhan (MDPI AG, 2020)We propose a method to parallelize a 3D incompressible Navier–Stokes solver that uses a fully implicit fractional-step method to simulate sediment transport in prismatic channels. The governing equations are transformed ... -
Effects of cylinder Reynolds number on the turbulent horseshoe vortex system and near wake of a surface-mounted circular cylinder
Kirkil, Gökhan; Constantinescu, George (Amer Inst Physics, 2015)The turbulent horseshoe vortex (HV) system and the near-wake flow past a circular cylinder mounted on a flat bed in an open channel are investigated based on the results of eddy-resolving simulations and supporting flow ... -
Electricty demand and supply scenario analysis for nigeria using long range energy alternatives planning
İbrahim, Hanif Auwal (Kadir Has Üniversitesi, 2017)Electricity demand and supply forecasts are very important tools for determining solutions to the problems in the electricity sector such as power outages. The Long Range Energy Alternatives Planning (LEAP) energy model ... -
Energy transition scenario analysis for Turkey using long range energy alternatives planning (LEAP)
Massaga, Daniel Julius (Kadir Has Üniversitesi, 2019)Fossil fuel thermal power plants constitute a large part of the Turkish electricity generation capacity. The Turkish government has been developing several energy policy documents to evaluate how various renewable energy ... -
Flow and Turbulence Structure Around an In-Stream Rectangular Cylinder with Scour Hole
Kirkil, Gökhan; Constantinescu, George (TSINGHUA UNIV, 2013)An eddy resolving technique is used to reveal the unsteady dynamics of the coherent structures present in the flow field around an in-stream vertical cylinder with a scour hole at a channel Reynolds number of 240000. Such ... -
Flow Structure in a Shallow Mixing Layer Developing over 2-D Dunes
Kirkil, Gökhan (E D P Sciences, 2018)A high resolution Detached Eddy Simulation (DES) are used to characterize the evolution of a shallow mixing layer developing between two parallel streams in a long open channel over two-dimensional (2D) dunes. The study ... -
A framework for water and carbon footprint analysis of national electricity production scenarios
Shaikh, Mohammad A.; Küçükvar, Murat; Onat, Nuri Cihat; Kirkil, Gökhan (Pergamon-Elsevier Science Ltd, 2017)While carbon footprint reduction potential and energy security aspects of renewable and non-renewable resources are widely considered in energy policy their effects on water resources are mostly overlooked. This research ... -
Importance of LNG in Turkish natural gas supply security
Alkan, Mehmet Batuhan (Kadir Has Üniversitesi, 2019)The Natural Gas has been increasing its share of usage day by day due to the technologic developments, low carbon emission, increasing natural gas reserve in the fossil-based energy market. Nowadays, the share of natural ... -
Large Eddy Simulation of Wind Flow over A Realistic Urban Area
Kirkil, Gökhan; Lin, Ching-Long (MDPI, 2020)A high-resolution large eddy simulation (LES) of wind flow over the Oklahoma City downtown area was performed to explain the effect of the building height on wind flow over the city. Wind flow over cities is vital for ... -
Modeling of Wind Effects on Stratified Flows in Open Channels: A Model for the Istanbul Strait (Bosphorus)
Stratified flows in open channels arise as a result of density or surface level differences. If the channel is connected to a basin at one or both ends, strong winds originating from the basin cause the "wind setup" effect ... -
A Numerical Study of Shallow Mixing Development over Flat Surface and Dunes
Kirkil, Gökhan; Constantinescu, George (TSINGHUA UNIV, 2013)Results of a high resolution Detached Eddy Simulation (DES) are used to characterize the evolution of a shallow mixing layer developing between two parallel streams in a long open channel with a smooth flat bed and dunes. ... -
A numerical study of the laminar necklace vortex system and its effect on the wake for a circular cylinder
Kirkil, Gökhan; Constantinescu, George (Amer Inst Physics, 2012)Large eddy simulation (LES) is used to investigate the structure of the laminar horseshoe vortex (HV) system and the dynamics of the necklace vortices as they fold around the base of a circular cylinder mounted on the flat ... -
The optical and electrical characteristics of ZnO /MoS2 transparent oxide composite films
Al-Zubaidi, Shahad Tareq Radeef (Kadir Has Üniversitesi, 2021)Optoelektronikte saydam iletken oksit kullanımı, verimliliği düşürmeden veya maliyeti artırmadan esneklik, dayanıklılık ve taşınabilirlik becerisinin elde edildiği bir devrim yaratmaktadır. ZnO / MoS2 saydam iletken kompozit ... -
Potential and status of renewable energy development in energy import-dependent countries Turkey and Pakistan
Majeed, Mohsina (Kadir Has Üniversitesi, 2021)Human life cannot be imagined without the use of energy. Demand for energy, meanwhile, is increasing daily across the globe, while the uses and sources of energy have changed over time. Fossil fuels have dominated other ... -
The renewable energy transition in Turkey
Yılmaz, Mesut Can (Kadir Has Üniversitesi, 2019)Energy is an integral part of human life. The energy demand has been increasing for many years. The primary energy source differed over time. Fossil fuels dominated the energy market since 19th century. Overuse of fossil ... -
Resolved turbulence characteristics in large-eddy simulations nested within mesoscale simulations using the weather research and forecasting model
Mirocha, Jeff; Kosovic, Branko; Kirkil, Gökhan (2014)One-way concurrent nesting within the Weather Research and Forecasting Model (WRF) is examined for conducting large-eddy simulations (LES) nested within mesoscale simulations. Wind speed spectra and resolved turbulent ...