Yayıncı "Pergamon-Elsevier Science LTD" Makale Koleksiyonu için listeleme
Toplam kayıt 11, listelenen: 1-11
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Dynamic modeling of exergy efficiency of turboprop engine components using hybrid genetic algorithm-artificial neural networks
(Pergamon-Elsevier Science LTD, 2015)Genetic algorithm is utilized to design the optimum initial value of parameters and topology of the artificial neural network which is trained by applying the improved backpropagation algorithm using momentum factor so as ... -
Energetic and exergetic efficiency modeling of a cargo aircraft by a topology improving neuro-evolution algorithm
(Pergamon-Elsevier Science LTD, 2016)An aircraft is a complex system that requires methodologies for an efficient thermodynamic design process. So, it is important to gain a deeper understanding of energy and exergy use throughout an aircraft. The aim of this ... -
Environmental impact assessment of a turboprop engine with the aid of exergy
(Pergamon-Elsevier Science LTD, 2013)To develop approaches that effectively reduce engine environmental effect of aircrafts, it is necessary to understand the mechanisms that have enabled improvements in thermodynamic efficiency of aircraft engines. In the ... -
Estimation of vertical and horizontal distribution of takeoff and climb NOx emission for commercial aircraft
(Pergamon-Elsevier Science LTD, 2013)An investigation of takeoff and climb NOx emissions is reported for a twin-engine, narrow-body, short-to-medium haul commercial aircraft, B737-800. Ten randomly selected flights are considered for two independent domestic ... -
Exergo-sustainability indicators of a turboprop aircraft for the phases of a flight
(Pergamon-Elsevier Science LTD, 2013)One of the key challenges for sustainable aviation is to reduce global and local environmental impacts. The scope of this study is analysed and discussed in detail for better understanding of sustainability performances ... -
An exergy way to quantify sustainability metrics for a high bypass turbofan engine
(Pergamon-Elsevier Science LTD, 2015)As fuel efficiency becomes a greater concern in aero engine design and operation. To meet this need, a new methodology is being developed here that proposes the use of exergetic metrics for mapping the exergy flows throughout ... -
Failure analysis of landing gears strut bearings
(Pergamon-Elsevier Science LTD, 2017)This paper analyses TB 20 training aircraft main landing gear attachment bearings which were failed as a result of cracks. Strut bearing is an attachment fitting of landing gear which attached to the wing spar and secures ... -
Improving aircraft safety and reliability by aircraft maintenance technician training
(Pergamon-Elsevier Science LTD, 2017)Aircraft maintenance is one of the primary causes or contributing factors in aircraft accidents. It is clear that proper training of Aircraft Maintenance Technicians (AMTs) will avoid failures, reduce maintenance related ... -
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 ... -
Numerical calculation of energy and exergy flows of a turboshaft engine for power generation and helicopter applications
(Pergamon-Elsevier Science LTD, 2016)Fuel efficiency of aircraft and helicopter becomes greater concern in recent years caused by rising fuel costs and as well as environmental impact of aviation emissions. Modern helicopters, however, highly complex systems ... -
Partial substitution of hydrogen for conventional fuel in an aircraft by utilizing unused cargo compartment space
(Pergamon-Elsevier Science LTD, 2010)Options are being actively sought in aviation to switch from petroleum-based fuels to alternative fuels, of which hydrogen is a promising candidate, despite challenges associated with its production and storage. The ...