Güncel Gönderiler: Havacılık ve Uzay Bilimleri Fakültesi
Toplam kayıt 257, listelenen: 221-240
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Mathematical modeling of heat recovery from a rotary kiln
(Pergamon-Elsevier Science LTD, 2010)In this study, heat recovery from rotary kiln was examined for a cement plant in Turkey. At first, an exergy analysis was carried out on the operational data of the plant. Results indicated the presence of 217.31 GJ of ... -
Impact assessment of CO2 emissions caused by exergy losses in the cement sector
(Inderscience Enterprises LTD, 2011)In this study, global effects caused by exergetic inefficiency are examined for rotary kiln of the cement plant. For this purpose, a rotary kiln process of a cement plant in Turkey is modelled, and the annual operation ... -
Design of fault current limiter using core with low initial permeability
(Inst Engineering Technology-Iet, 2017)Increasing electrical energy consumption and associated power grid expansion tend to increase the level of the fault currents in power systems. Maintaining proper functioning of the grid requires fault currents to be at ... -
Investigation of environmental and exergetic performance for coal-preparation units in cement production processes
(Pergamon-Elsevier Science LTD, 2012)The main objectives of the present study are to perform energy and exergy analyses of a coal-preparation unit in a cement plant and investigate the effect of varying dead state (ambient) temperatures on exergy efficiency. ... -
IGECVI-special issue-Energy and exergy modeling of advance energy systems
(Pergamon-Elsevier Science LTD, 2012)… -
Using emission index to determine energy efficiency and environmental parameters of a turbofan engine at various flight phases
(Inderscience Enterprises LTD, 2016)In this study, an unordinary methodology for energy efficiency calculation of a turbofan engine is introduced. Emission indexes of the engine are used to find out energy efficiency and novel parameters for environmental ... -
Operating Temperatures of the Solar Cells Used in the Concentrator System With Radiating Plates
(Turkish Soc Thermal Sciences Technology, 2016)A solar cell concentrator system is offered to satisfy the energy requirement of the satellites orbited around the Earth. The solar cells coupled to the system are exposed to sunlight concentrated 124 times with a Cassegrain ... -
Unsteady compressible flow simulation around low-aspect-ratio rectangular flat wings
(Professional Engineering Publishing LTD, 2011)Unsteady compressible flow solutions around a sharp-edged rectangular flat wing of an aspect ratio of 1.0 are obtained using a parallel Reynolds-averaged Navier-Stokes algorithm. The simulated cases are obtained for Mach ... -
Sustainability Metrics of a Small Scale Turbojet Engine
(Walter De Gruyter GMBH, 2018)Over the last decade, sustainable energy consumption has attracted the attention of scientists and researchers. The current paper presents sustainability indicators of a small scale turbojet engine, operated on micro-aerial ... -
A study of challenges to the success of the safety management system in aircraft maintenance organizations in Turkey
(Elsevier Science BV, 2015)The ICAO is an international regulatory authority put in place, in addition to current prescriptive regulatory approaches based on regulatory compliance that use reactive tools, performance based approaches that focus on, ... -
A qualitative study on the exploration of challenges to the implementation of the Safety Management System in aircraft maintenance organizations in Turkey
(Elsevier Sci LTD, 2015)Safety management has recently started using a paradigm that 'sees the world as it is' rather than 'prescribing how it should be'. The Safety Management System (SMS), a product of this paradigm shift, has fairly new and ... -
Automatic optimization of a centrifugal pump based on impeller-diffuser interaction
(SAGE Publications LTD, 2018)In this study, a centrifugal pump has been optimized using the genetic algorithm coupled with computational fluid dynamics considering the flow physics for various impeller-diffuser configurations. During the automatic ... -
Assessment of thermodynamic performance and exergetic sustainability of turboprop engine using mixture of kerosene and methanol
(Inderscience Enterprises LTD, 2016)In this study, first and second laws of thermodynamics were performed in the turboprop and is analysed and discussed with the mathematical model of sustainability performance of a turboprop engine using a mixture of ... -
Performance Evaluation of an Experimental Turbojet Engine
(Walter De Gruyter GMBH, 2017)An exergy analysis is presented including design parameters and performance assessment, by identifying the losses and efficiency of a gas turbine engine. The aim of this paper is to determine the performance of a small ... -
Calculation of HC, CO and NOx from civil aviation in Turkey in 2012
(Inderscience Enterprises LTD, 2013)To meet the growing demand for air transport, airline companies doubled their aircraft numbers in Turkey, where civil aviation activities have shown great development in recent years. This increase in aircraft numbers ... -
Evolution of Microstructure and Texture in AZ31 Alloy Subjected to Gas Forming
(Springer, 2017)In this study, AZ31 sheets were subjected to gas forming using a stepped geometry die and employing two different temperatures (400A degrees C and 450A degrees C) and exposure times (60 s and 120 s). Microstructural ... -
Numerical Analysis of the Cavity Flow subjected to Passive Controls Techniques
(IOP Publishing LTD, 2018)Open-source flow solvers are getting more and more popular for the analysis of challenging flow problems in aeronautical and mechanical engineering applications. They are offered under the GNU General Public License and ... -
UAV path planning using segmented cellular evolutionary algorithm
(Inderscience Enterprises LTD, 2016)Path planning is one of the most important issues for sustainable development of unmanned aerial vehicles (UAVs). The aim of the path planning is to provide the shortest and safest route. In this study, an algorithm has ...