Forthcoming articles

International Journal of Sustainable Aviation

International Journal of Sustainable Aviation (IJSA)

These articles have been peer-reviewed and accepted for publication but are pending final changes, are not yet published and may not appear here in their final order of publication until they are assigned to issues. Therefore, the content conforms to our standards but the presentation (e.g. typesetting and proof-reading) is not necessarily up to the Inderscience standard. Additionally, titles, authors, abstracts and keywords may change before publication. Articles will not be published until the final proofs are validated by their authors.

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International Journal of Sustainable Aviation (6 papers in press)

Regular Issues

  • Turbofan engine weight estimation for preliminary design   Order a copy of this article
    by Mustafa Karabacak, Onder Turan 
    Abstract: The aim of the study is to prepare weight estimation model of turbofan engines to help designer in the conceptual stages of modern turbofan design. To achieve this purpose, statistical data is used on yielding robust analytical expression and experiments are conducted to prepare model for turbofan engine weight estimation is not easy due to the high cost and insufficient technical facility. Turbofan engine classified into 5 categories (3 shaft turbofan engine, light weight 2 shaft turbofan engine , medium weight 2 shaft turbofan engine, high weight 2 shaft turbofan engine and 2 shaft geared turbofan engine) and turbofan engine weight model is developed for each category separately to increase model sensitivity. Model sensitivity is investigated for each category by error analysis to give idea about model reflection of real world to conceptual designer.
    Keywords: turbofan engine weight; thrust to weight ratio; bypass ratio; aircraft.

  • Electric VTOL Aircraft: The future of Urban Air Mobility (BACKGROUND, Advantages and Challenges)   Order a copy of this article
    by Darli Vieira, Dreyfus Silva, Alencar Bravo 
    Abstract: This article discusses eVTOL (electric vertical takeoff and landing) aircraft technology. The groundbreaking eVTOL technology has become a major focus of urban air mobility solutions and promises to become a reality in the near future, as it offers several advantages over conventional helicopters. As of the writing of this paper, several aeronautical companies are competing to bring the first eVTOL aircraft into commercial operation. However, there are large challenges to overcome, ranging from battery technology to certification regulations. This paper discusses the major designs currently under development, their advantages and handicaps, and the challenges posed by civil certification.
    Keywords: aviation; electric propulsion; eVTOL; urban air mobility; air taxi; sustainable; certification.

  • A Sustainable Method for Scheduling Maintenance Services of An Airline With the Aims of Minimizing Awaiting Times and Maximizing Flights Performance   Order a copy of this article
    by Aidin Delgoshaei, Fateme Naserbakht 
    Abstract: The maintenance and repair of the aircraft is among the most important issues in aviation studies. Failure to pay for services and timely visits or lack of attention to necessary repairs can lead to human disasters. The increase in repair costs and the number of flights made airlines to utilize resource usage as the main objective of the aviation maintenance industry. rnIn real cases, decision makers always consider more than one criterion. However, an in depth review of the literature shows that the issue of multi-objectives for maintenance scheduling of airlines has been less developed. By using an appropriate multi-objective mathematical modelling, an effective maintenance plan can be achieved which reduces maintenance and repair costs and the work cycle of the aircraft simultaneously. rnTherefore, in this research, an efficient hybrid method is proposed for scheduling maintenance services in an airline. The method is developed considering real abilities of repair shops of international airlines. It is able to schedule aircraft according to their preventive plans and flight tables in order to reduce the awaiting times in the main repair shops of the airline. The method can also rent aircraft from other airlines when necessary. It also allows alien airplanes to use repair shop services in order to utilize the performance of repair shop. Several case studies using real number of aircraft in the airlines are solved to evaluate the performance of the proposed method. The results showed that the proposed algorithm is able for solving small, medium and large-scale case studies in a reasonable time. The findings showed the proposed method can schedule maintenance services of airplanes with the minimum awaiting time and maximum flight time according to flight table.rn
    Keywords: Aviation; Maintenance Planning; Flight Scheduling; Multi-objective Decision Making.

  • The life cycle assessment related to insulation thickness of external walls of the airport   Order a copy of this article
    by Okan Kon, Ismail Caner 
    Abstract: In this study, energy savings to be gained by the insulation of the external walls of airport buildings are examined according to Turkish Building Insulation standard (TS 825) which is renewed in December 2013. In addition, lifecycle total cost (LCT) and life cycle savings (LCS) are calculated. Unlike the residences, the airport buildings indoor temperatures should be 20
    Keywords: Life cycle assessment; TS 825; insulation; energy saving.

  • Total impact estimation to support sustainability of small hybrid aircraft   Order a copy of this article
    by Agnes Wangai, Kinzhikeyev Sergey, Daniel Rohacs, Jozsef Rohacs 
    Abstract: Nowadays, sustainability-related research and improving the greening in aviation has become a significant focus for future aviation developments. This introduces a new methodology developed for total impact evaluation of the vehicles and transportation systems. A method to determine all the impact i.e. environmental impact, safety and security, cost, cost benefits, and sustainability. These impacts are analyzed and evaluated on the vehicle and/or on the transportation system levels by generating the total impact index. There will be shown and discussed the results of the comparison analysis of total and specially the environmental impacts of the aircraft with different (conventional, electric and hybrid) propulsion systems. The study will take into account some differences in operational concepts, too, like range, time of using the electric engines, only, etc.
    Keywords: Total impact assessment; small hybrid aircraft; different propulsion systems; environmental impact; sustainability.

    by Devinder Yadav, Maryil Goriet 
    Abstract: General aviation industry is important in promoting national and global economy. However, in China the industry is still underdeveloped, but it has a huge potential for growth. This paper outlines a research framework for a qualitative survey to identify various issues and difficulties encountered in development and operations of general aviation industry in China. A study for technical development of general aviation (GA) industry in Liaoning province of China has been carried out after performing a focused group survey and field data collection in order to analyze issues affecting GA industry in China. Primarily, it has been observed that military control of airspace and lack of qualified aviation professionals impedes the growth of this section of the aviation industry in this country. The study primarily clarifies GA situation in China and factors affecting growth of the industry are examined. It also proposes a possibility of developing in-house aircraft maintenance facilities to promote growth of the industry in regional areas of the country.
    Keywords: Airspace; aviation; aircraft; engineering; flight; maintenance.