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Application of Artificial Neural Network (ANN) method to exergy analysis of thermodynamic systems
(IEEE Computer Soc, 2009)Exergy is a way to sustainable development and may be defined as the maximum theoretical useful work, while exergy analysis identifies the sources, the magnitude and the causes of thermodynamic inefficiencies within each ... -
Emissions at Busy Airports
(World Scientific And Engineering Acad And Soc, 2009)Emissions in the vicinity of airports demonstrate that aircraft movements (landings and takeoffs in the airport are not sufficient to evaluate the cumulative emission formation for an airport. Eight busy airports and three ... -
Refrigeration inventory based on CO2 emissions and exergetic performance for supermarket applications
(Elsevier Science Sa, 2012)In this study, first energy and exergy analysis for supermarket cooling applications having high refrigerant capacity are examined and next, based on these analyses and different gases used. CO2 emission effect caused by ... -
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. ... -
Exergetic effects of some design parameters on the small turbojet engine for unmanned air vehicle applications
(Pergamon-Elsevier Science LTD, 2012)This article analyses some design parameters on the exergetic and energetic performances for a small turbojet engine for unmanned vehicles. On the basis of theoretical data employed, some exergetic and aerothermodynamics ... -
A Preliminary Study on Relationship between Flight Path Angle and NOx Emissions during Descent
(Aidic Servizi Srl, 2014)Interest in the continuous descent approach has recently increased due to opportunities it provides for fuel savings and emissions and noise control. However, the implementation of this procedure involves a number challenges ... -
Exergoeconomic Environmental Optimization of Piston-Prop Aircraft Engines
(Taylor & Francis Inc, 2015)In this study, exergy, exergoeconomic, exergoenvironmental analyses, and exergoeconomic environmental optimization are applied to a four-cylinder, spark ignition, naturally aspirated and air-cooled piston-prop aircraft ... -
A Parametric Study of a Piston-Prop Aircraft Engine Using Exergy and Exergoeconomic Analysis Methods
(Taylor & Francis Inc, 2015)In this study, exergetic and exergoeconomic analysis methods are applied to a four-cylinder, spark ignition (SI), naturally aspirated and air-cooled piston-prop aircraft engine in the cruise phase of flight operations. The ... -
Airport Corporate Sustainability: An Analysis of Indicators Reported in the Sustainability Practices
(Elsevier Science BV, 2015)Sustainability is getting more important in the developing air transportation industry. As airports are the most significant elements of the air transportation industry the indicators for the sustainability of airport ... -
Exergetic Sustainability Indicators as a Tool in Commercial Aircraft: A Case Study for a Turbofan Engine
(Taylor & Francis Inc, 2015)This paper focuses on the exergetic sustainability indicators of a medium-range commercial aircraft engine for constant reference environment and ground running conditions. First, a detailed exergy analysis of turbofan ... -
Design and flight test study of a VTOL UAV
(American Institute of Aeronautics and Astronautics Inc, AIAA, 2015)The aim of this paper is to present the ongoing studies about design and fight testing of a fixed wing UAV which is able to take-off and land vertically. The UAV concept discussed in this study has three propeller engines. ... -
Exergetic sustainability improvement potentials of a hydrogen fuelled turbofan engine UAV by heating its fuel with exhaust gasses
(Pergamon-Elsevier Science LTD, 2016)Exergetic sustainability parameters such as, exergy efficiency, waste exergy ratio, environmental effect factor and exergetic sustainability index were investigated for an UAV having a turbofan engine for the case its ... -
Parametric study of exergetic sustainability performances of a high altitude long endurance unmanned air vehicle using hydrogen fuel
(Pergamon-Elsevier Science LTD, 2016)Exergetic sustainability performances such as, exergy efficiency, waste exergy ratio, environmental effect factor and exergetic sustainability index of a HALE UAV were investigated parametrically. The UAV and its high ... -
Comparison of Shape Optimization Techniques Coupled with Genetic Algorithm for a Wind Turbine Airfoil
(IEEE, 2016)Airfoil optimization is an important subject for wind turbines in order to increase the flow efficiency along the blade sections. The first important subject for airfoil shape optimization is the mathematical description ... -
Investigation of effects of hydraulic balance in mechanical system based on energetic and exergetic efficiency in industrial buildings
(Inderscience Enterprises LTD, 2016)In the total energy demand and management for heating and cooling systems in industrial processes and commercial buildings for different zones, provision of the appropriate balance flows with hydraulic and thermal balancing ... -
Evaluation of Safety Management Systems in the Turkish Aviation Industry: Evidence From Aviation Companies
(Int Organization Center Acad Research, 2016)This study focuses on the Safety Management System (SMS) brought forward by aviation authorities in the early 2000s, which aims to increase the safety level of air transportation activities and to maintain these activities ... -
Evaluation of aircraft descent profile
(Elsevier Science BV, 2016)Point Merge System (PMS) is a new method for merging and sequencing arrival traffic flows. It consists of sequencing legs, merge point. PMS allows Continuous Descent Approaches (CDAs) which reduces environmental impacts ... -
Exergy-based sustainability analysis of a low-bypass turbofan engine: A case study for JT8D
(Elsevier Science BV, 2016)The growth in demand for air transport is a problem for the global and local environment. There are, moreover, fundamental conflicts with sustainable development objectives. Sustainability demands a sustainable supply of ... -
A machine learning model to predict NOx emission for turbofan engines of commercial aircraft during idle condition
(Advanced Engineering Solutions, 2016)A machine learning modelling approach to predict nitrogen oxides (NOx) emission was accomplished for turbofan engines of commercial aircraft during the idle condition utilizing International Civil Aviation Organization ... -
Design, flight mechanics and flight demonstration of a tiltable propeller VTOL UAV
(American Institute of Aeronautics and Astronautics Inc, AIAA, 2016)This paper presents the design, flight mechanics and flight demonstration studies of a novel tiltable propeller VTOL UAV. The aircraft, discussed in this study, consists of a forward-swept fixed wing, two pairs of counter ...
