Dispersion modelling of jet propellant 8 spill in the aerospace industry

Download

index.pdf

Date

2020

Author

Çelik, Olgu

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

80
views

49
downloads

The purpose of this study is to identify hazards, evaluate risks and suggest safety measures in order to prevent fire and explosions due to the uncontrolled charging and the ignition of jet propellant 8, shortly JP-8, at the fueling stations in the aerospace industry. There are many different surveys on the ignition and the explosion of the fuels in the literature. However, not enough researches have been made in order to model the dispersion of the JP-8 spill in aviation. JP-8 is a petroleum product which has wide usage in aviation as a jet engine propellant. JP-8 is a flammable hydrocarbon mixture and its vapors can be ignited very quickly. JP-8 vapors can start a fire and explode in open air or in the confined spaces in case of exposure to flame, spark, heat, static electricity discharge and different types of ignition sources. A case scenario of JP-8 spill during the fueling operations in the aviation sector is investigated to model evaporation of JP-8 spill and dispersion of its vapors. Different evaporation and dispersion models are discussed and compared for deciding the most suitable model for the JP-8 spill. According to the assessment results, the area affected by the JP-8 spill and evacuation zones are defined. This research provides the required information to design safe fueling stations and to increase the safety during fueling operations for the aerospace industry.

Subject Keywords

Aerospace industries, Dispersion modelling, Evaporation modelling, Oil spill, Aerospace .

URI

http://etd.lib.metu.edu.tr/upload/12625274/index.pdf
https://hdl.handle.net/11511/45606

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Simulation of Rapidly Maneuvering Airfoils with Synthetic Jet Actuators Jee, SolKeun; Lopez Mejia, Omar D.; Moser, Robert D.; Muse, Jonathan A.; Kutay, Ali Türker; Calise, Anthony J. (American Institute of Aeronautics and Astronautics (AIAA), 2013-08-01) Synthetic jet actuators are investigated for rapidly maneuvering airfoils that are regulated by a closed-loop control system. To support active flow-control simulations performed here, the closed-loop system and vehicle dynamics are coupled with computational fluid dynamics. High-frequency sinusoidal pitching simulations with and without synthetic jet actuation indicate that the current synthetic jet actuators provide bidirectional change in aerodynamic forces during rapid maneuvers whose time scales are of...
Low velocity impact analysis of a composite mini unmanned air vehicle during belly landing Yüksel, Serhan; Kayran, Altan; Department of Aerospace Engineering (2010) Mini unmanned Air Vehicles (UAV) have high significance among other UAV's, in different categories, due to their ease of production, flexibility of maintenance, decrease in weight due to the elimination of landing gear system and simplicity of use. They are usually built to meet 'hand launching' and 'belly landing' criteria in order to have easy flight and easy landing features. Due to the hand take-off and belly landing features there is no need to have a runway and this feature is a very significant advan...
Flight control system design for an over actuated UAV against actuator failures Işık, Sinem; Tekinalp, Ozan; Department of Aerospace Engineering (2010) This thesis describes the automatic flight control systems designed for a conventional and an over actuated unmanned air vehicle (UAV). A nonlinear simulation model including the flight mechanics equations together with the interpolated nonlinear aerodynamics, environmental effects, mass-inertia properties, thrust calculations and actuator dynamics is created; trim and linearization codes are developed. Automatic flight control system of the conventional UAV is designed by using both classical and robust co...
Effect of turbulence modeling for the prediction of flow and heat transfer in rotorcraft avionics bay Akin, Altug; Kahveci, Harika Senem (Elsevier BV, 2019-12-01) In this paper, four turbulence models are compared on the basis of the predictions they produce for the flow and heat transfer in the avionics bay area of a rotorcraft. The turbulence models studied are the standard k-s, Renormalization Group (RNG) k-epsilon, realizable k-epsilon, and Shear-Stress Transport (SST) k-omega model. The avionics bay used in the study houses avionics equipment mounted on the floor and on a rack inside the bay to mimic a realistic distribution of equipment in actual rotorcraft. Th...
Aero-structural design and analysis of an unmanned aerial vehicle and its mission adaptive wing İnsuyu, Erdoğan Tolga; Şahin, Melin; Department of Aerospace Engineering (2010) This thesis investigates the effects of camber change on the mission adaptive wing of a structurally designed unmanned aerial vehicle (UAV). The commercial computational fluid dynamics (CFD) software ANSYS/FLUENT is employed for the aerodynamic analyses. Several cambered airfoils are compared in terms of their aerodynamic coefficients and the effects of the camber change formed in specific sections of the wing on the spanwise pressure distribution are investigated. The mission adaptive wing is modeled struc...

Citation Formats

O. Çelik, “Dispersion modelling of jet propellant 8 spill in the aerospace industry,” Thesis (M.S.) -- Graduate School of Natural and Applied Sciences. Occupational Health and Safety., Middle East Technical University, 2020.