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Browsing Makina Mühendisliği by Author "Bedir, Hasan."

Browsing Makina Mühendisliği by Author "Bedir, Hasan."

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  • 2-D modeling of compression ignition engine combustion 
    Yıldırım, Cebrail. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    Internal combustion engines are the cornerstones of our society. They are widely used in a vast range of area from transportation to power generation. Since they are mostly petroleum-powered and emission regulations are ...
  • 3D radial inflow turbine design and analysis for a small scale ORC application 
    Sezerkan, Emre. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    In this study, the aim is to design and analyze a single stage subsonic radial in- ow turbine for the Organic Rankine Cycle system established in Bogazici University Renewable Energy Technologies Laboratory, by using ...
  • Adsorption cooling cycle with / without heat and mass recovery enhancements 
    Cerrah, Ecem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    In this thesis study an adsorption cooling system containing two adsorption beds that operate conversely, an evaporator and a gas cooler is modeled. The model is constructed based on heat and mass transfer equations. The ...
  • Adsorption refrigeration cycle with mass and heat recovery 
    Yıldız, Kadir Yiğit. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    A non-uniform temperature/uniform pressure mathematical model of a combined mass and heat recovery adsorption cooling cycle based on activated carbon/methanol working pair is examined and numerically solved under certain ...
  • Analysis and optimization of a small scale solar organic rankine cycle system for power generation 
    Soysal, Umut. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    In this study, a numerical model of a small scale concentrated solar power system is designed for Istanbul conditions and the annual performance of the system is evaluated. As a collector system, a thermal model of parabolic ...
  • Core-shell PVA / gelatin nanofibrous scaffolds using multinozzle aqueous electrospinning 
    Şengör, Mustafa. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Biological scaffolds have been used in the reconstruction of the damaged tissues. They have similar morphology and structure to the host tissues. However, they can be produced using materials that can be harmful to humans ...
  • Correlation and optimisation of thermodynamic model parameters with experimental data to predict emissions from a diesel engine 
    Barış, Onur. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    The biggest challenge in engine development is emission regulation today, which gets more stringent with time. Computer aided engineering (CAE) has also increasing importance together with increasing potential of processors ...
  • Design and implementation of a parabolic trough collector system 
    Bilgin, Egemen Orhan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    With the effect of global warming on weather, most countries are interested in renewable energy sources and solar energy is the most promising one among others with an endless source. With this awareness, a lab scale test ...
  • Design, production and testing of a laboratory scale organic rankine cycle system 
    Kardaş, Onur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    This study presents the thermodynamic design, implementation and commissioning of a small scale organic Rankine cycle test rig. The objective was to design a exible organic Rankine cycle test rig to study performance of ...
  • Design, production and testing of a micro scale ORC 
    Bayraktar, Berkhan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Energy efficiency and renewable energy technologies are becoming more and more important every day. Organic Rankine Cycle is a proven way of generation of power from low temperature heat sources. In this study a 1 kW ...
  • Dynamic modeling of organic rankine cycle and its experimental verification 
    Altun, Ertuğrul. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Renewable energy technologies and waste heat recovery systems have become more important all around the world because of global warming, global climate change, and countries' tendency to decrease fossil fuel consumption. ...
  • Dynamic modelling and experimental validation of the cyclic operation and loaded pull-down of a conventional domestic refrigerator 
    Husain, Salman Mustafa. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    A dynamic model of a top mounted, conventional, serial system domestic refrigerator is created in this thesis using the TIL library in Dymola. The compressor is modelled semi-empirically using loss parameters obtained by ...
  • Effect of air flow, water spray and nozzle injection characteristic on direct evaporative cooling 
    Shafiei, Hamed. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Evaporative cooling occurs through evaporation of water droplets in air. It works on the principle of injecting water spray directly into the air flow to reduce its temperature by a conversion of sensible heat of the air ...
  • Electrospinning of polycaprolactone / bovine gelatin / bovine hydroxyapatite biomimetic composite nanofibers 
    Akalın, Güneş Ece. (Thesis (M.A.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    In this study, Polycaprolactone (PCL) / Bovine Gelatin (GE) / Bovine Hydroxyapatite (BHA) biomimetic composite nanofiber scaffolds are manufactured for bone tissue regeneration applications by electrospinning. By controlling ...
  • Fast NOx prediction methodology via 1D thermodynamical tools 
    Özgül, Emre. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Accurate modelling of Nitrogen Oxide, soot, CO and UHC emissions from diesel engines plays a crucial role during the development phases of powertrain systems due to increasingly more strict emission legislation. Undoubtedly, ...
  • Modeling of an autothermal heat-integrated wall reactor for simulation of hydrogen production for fuel cell applicayions 
    Biçici, Cihan Banu. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    An autothermal, heat integrated wall reactor model for hydrogen production forvehicular fuel cell applications is investigated using computer-based simulation techniques.The two dimensional reactor model is based on a ...
  • Modeling of circular counterflow swissroll combustor for MEMS application 
    Özgül, Emre. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    A two-dimensional numerical model is generated for simulating combustion and heat transfer in "Spiral Swiss roll" combustors. In this research, the most important purpose is to investigate the micro-scale combustion and ...
  • Modeling of rectangular counter flow heat-recirculating combustor 
    Saracoğlu, Bayındır Hüseyin. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    The meso-scale, 3.5 turn Swiss-roll type counter flow heat recirculating combustor is modeled by a two dimensional finite-volume computational fluid dynamics (CFD) solver. The solver includes momentum, continuity, energy ...
  • Modelling of unsteady processes of adsorption refrigeration systems 
    Berk, Mehmet Emre. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Energy savings on refrigeration systems are highly desired due to the aware ness of limited energy sources in recent years. In this regard, new technologies have been developed in addition to the conventional refrigeration ...
  • Numerical analysis of radiative transfer of a non-gray flame using ststistical narrow band method 
    Bilgiç, Melih Hilmi. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Radiative heat transfer plays a signi cant role where high temperature participating gases exists, such as in boilers, jet engines and internal combustion engines. Analysis of such devices should include accurate radiative ...

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