Yazar "Akbulut, Uğur" için listeleme
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Analysis of a wall cooling system using a heat pump
Akbulut, Uğur; Kıncay, Olcay; Utlu, Zafer (Pergamon-Elsevier Science Ltd, 2016)In this study, a vertical ground source heat pump wall cooling system that belongs to the Yildiz Renewable Energy House at the Davutpasa Campus of Yildiz Technical University was studied both experimentally and theoretically. ... -
Comparison of energy performance and static loads on a building integrated wind, solar, and rainwater harvester
Gürbüz, Ali; Akbulut, Uğur; Özşaban, Mert (Springer International Publishing, 2014)In recent years, sustainable energy and green buildings are developed as important issues. Many helpful systems were developed to profit from advantages of different renewable energy sources. However, the research on ... -
A comprehensive review on hydrogen production from coal gasification: Challenges and Opportunities
Midilli, Adnan; Küçük, Haydar; Topal, Muhammed Emin; Akbulut, Uğur; Dinçer, İbrahim (Elsevier, 2021)This paper comparatively discusses hydrogen production options through coal gasification, including plasma methods, and evaluate them for practical applications. In this regard, it focuses on numerous aspects of hydrogen ... -
Entransy-based environmental and life cycle cost analysis to determine optimum insulation thickness: Effect of the fuel sources
Akbulut, Uğur (Gazi Universitesi, 2024)In this study, the influence of fuel sources on entransy-based environmental impact and life cycle cost (LCC) analysis while determining the optimum insulation thickness (OIT) has been investigated. Analyses are carried ... -
Entropy generation of mixed convection in a vertical parallel plate microchannel with asymmetric wall heat flux
Akbulut, Uğur (Inderscience Enterprises Ltd, 2015)In this study, the results of a parametric analysis of the entropy generation of mixed convection in a vertical parallel plate microchannel with asymmetric wall heat flux are presented. the fluid flow was assumed as Newtonian ... -
Exergetic analysis of a vertical ground-source heat pump system with wall heating/cooling
Akbulut, Uğur; Açıkgöz, Özgen; Kincay, Olcay; Karakoc, T.Hikmet (Springer International Publishing, 2014)The present study deals with an exergetic analysis and assessment of a Vertical Ground-Source Heat Pump System (VGSHP) combined with a Wall Heating System (WHCS) in a building. This study is an experimental investigation ... -
Exergetic performance comparison of air and hydrogen gas flowing through the annular curved duct
Midilli, Adnan; Küçük, Haydar; Akbulut, Uğur (Pergamon-Elsevier Science Ltd, 2018)The main objective of this study is to parametrically compare the exergetic performance of air and hydrogen gas flow through the curved annular duct. For this purpose, it is assumed that, i) air and hydrogen are considered ... -
Exergoeconomic evaluation and optimization of a solar-powered polygeneration system producing freshwater, electricity, hydrogen, and cooling
Khalid, Faizan; Akbulut, Uğur (Elsevier, 2024)This study presents a comprehensive exergoeconomic assessment and optimization of a pioneering solar-powered polygeneration system designed for simultaneous production of electricity, cooling, freshwater, and hydrogen, ... -
Exergoenvironmental and exergoeconomic analyses of a vertical type ground source heat pump integrated wall cooling system
Akbulut, Uğur; Utlu, Zafer; Kincay, Olcay (Pergamon-Elsevier Science Ltd, 2016)In this study, exergoenvironmental, and exergoeconomic analyses of wall cooling systems fed by a vertical type of ground source heat pump integrated wall cooling system for cooling were examined experimentally and theoretically ... -
Exergy, exergoenvironmental and exergoeconomic evaluation of a heat pump-integrated wall heating system
Akbulut, Uğur; Utlu, Zafer; Kincay, Olcay (Pergamon-Elsevier Science Ltd, 2016)In this study, a vertical ground source heat pump wall heating system belonging to the Yildiz Renewable Energy House on the Davutpasa Campus of Yildiz Technical University was experimentally and theoretically studied. the ... -
A parametric study on exergetic performance of a YSZ electrolyte supported SOFC stack
Midilli, Adnan; Akbulut, Uğur; Dinçer, İbrahim (Inderscience Enterprises Ltd, 2017)This paper presents a parametric study on the exergetic performance assessment of an electrolyte supported solid oxide fuel cell (SOFC) stack. Considering the operating and design parameters of yttria stabilised zirconia ... -
Performance assessment of a vertical ground-source heat pump system with wall heating and cooling
Extensive studies on ground-source heat pump systems' performance have been published in the literature. Coefficient of performance (COP) on heating and cooling modes significantly influences thermal energy economics for ... -
A review on converting plastic wastes into clean hydrogen via gasification for better sustainability
Midilli, Adnan; Küçük, Haydar; Hacıosmanoğlu, Murat; Akbulut, Uğur; Dinçer, İbrahim (Wiley, 2021)This review paper focuses on converting plastic wastes into clean hydrogen via gasification for better sustainability. In this regard, various aspects of hydrogen production from plastic wastes are discussed and comparatively ... -
Thermodynamic based environmental and sustainability assessments of gas flow in a curved annular channel
Midilli, Adnan; Küçük, Haydar; Akbulut, Uğur (Pergamon-Elsevier Science Ltd, 2020)The main objective of this research paper is to perform a parametric comparison of gas flow (air and hydrogen) through a curved channel in terms of thermodynamic based environmental and sustainability analysis. For this ... -
Viscous dissipation effects on entropy generation in heated vertical parallel-plate channels for mixed convection
Akbulut, Uğur; Ovalı, Rasim Volga; Küçük, Haydar (Inderscience Enterprises Ltd, 2017)In this study, effect of viscous dissipation on entropy generation for fully developed incompressible laminar flow mixed convection in vertical parallel-plate channels with asymmetric and symmetric uniform heat fluxes was ...