scholarly journals DEVICE FOR CONTINUOUS MONITORING OF AVIATION FUEL PURITY IN THE TECHNOLOGICAL SCHEME OF AIRCRAFT FUEL SUPPLY

2017 ◽  
Vol 20 (6) ◽  
pp. 54-62
Author(s):  
A. A. Brailko ◽  
N. A. Druzhinin ◽  
V. M. Samoilenko
Keyword(s):  
Continuous Monitoring ◽  
Aviation Fuel ◽  
Technological Scheme ◽  
Fuel Supply ◽  
Aircraft Fuel

scholarly journals The Thermal Stability of Aviation Fuel

1984 ◽  
Author(s):  
J. S. Mills ◽  
F. R. Edwards
Keyword(s):  
Thermal Stability ◽  
Research Tool ◽  
Aviation Fuel ◽  
Engine Oil ◽  
Thermally Stable ◽  
Fuel System ◽  
Flow Rates ◽  
Aircraft Fuel ◽  
Oil Cooler ◽  
Thermal Stability Of

The propensity of aviation turbine fuels to produce deposits in the oil-cooler and filter sections of aircraft fuel systems has been examined using a rig that simulates the fuel system of an aircraft and which employs realistic flow rates. All the fuels examined were found to be thermally stable up to temperatures in excess of those currently attained in engine oil coolers. Comparison with results obtained with the JFTOT indicates that this is not suited for use as a research tool.

scholarly journals Surface Fouling in Aviation Fuels: An Isothermal Chemical Study

1995 ◽  
Author(s):  
E. Grant Jones ◽  
Walter J. Balster ◽  
James M. Pickard
Keyword(s):  
Experimental Test ◽  
Chemical Study ◽  
Aviation Fuel ◽  
Test Time ◽  
Tubular Heat Exchanger ◽  
Surface Deposition ◽  
Test Conditions ◽  
Aircraft Fuel ◽  
Dynamic Experiments ◽  
Selection Of

Surface fouling in aircraft fuel lines that results from autoxidation of aviation fuel remains a serious and very complicated problem. This area has been studied using two Jet-A fuels, POSF-2827 and POSF-2980. The results of a series of dynamic experiments conducted in a single-pass, tubular heat exchanger operated at very slow flow rates under near-isothermal conditions are reported herein. Such studies, by minimizing complications resulting from fluid dynamics and heat flow, constitute a simpler global approach to the chemistry of fouling. The basis for the selection of experimental test conditions is discussed, and data from measurements of dissolved oxygen and surface deposition as a function of fuel stress duration are presented. The effects of parameters such as reaction temperature, tube diameter, experimental test time, and fuel dopants are considered.

scholarly journals Kajian Dampak Kenaikan Harga Avtur Terhadap Keuntungan Pendapatan Maskapai Penerbangan (Rute Jakarta-Yogyakarta)

2019 ◽  
Vol 24 (2) ◽  
pp. 127
Author(s):  
M Herry Purnama ◽  
Susanti Susanti
Keyword(s):  
Aviation Fuel ◽  
Load Factor ◽  
Fuel Price ◽  
Fuel Prices ◽  
Aircraft Fuel ◽  
Price Range ◽  
Lower Load ◽  
The Difference ◽  
Aircraft Type ◽  
Flight Route

Assessment of tire Tariff Schedules Commercial Scheduled Air Transport Related to Fuel Price illcrease Aircraft illtematio1wl Ai1port Yogyakarta Adi Sucipto is to know haw the effect of rising prices of aviation fuel or aircraft fuel to air freight carrier rates, namely PT. Garuda llldonesia (Garuda Airlines), PT. Sun Lion (Lion Airlines), and PT. Metro Batavia (Batavia Airlines) for route Jakarta - Yogyakarta during the period January to September 2011. Assess111c11 t method used is descriptive quantitative method to calculate the total cost of airline travel route Jakarta - Yogyakarta with calculation components include (a) Type of aircraft and aircraft type, (b) Using the assumption of hvo load factor is 65% lower load factor and load factor is high 80%, (c) Using tire asswnption of hvo aviation fuel prices are the lowest aviation fuel jet fuel price range, - and the highest price of aviation fuel during the period January to September 2011, the average ticket price flight route Jakarta - Yogyakarta period from January to September 2011. 17re results of the assessment indicates there is a difference significant benefits from each airline operator, when associated with the load factor and the difference in price of aviation fuel.

Surface Fouling in Aviation Fuels: An Isothermal Chemical Study

1996 ◽  
Vol 118 (2) ◽  
pp. 286-291 ◽  
Author(s):  
E. G. Jones ◽  
W. J. Balster ◽  
J. M. Pickard
Keyword(s):  
Experimental Test ◽  
Chemical Study ◽  
Aviation Fuel ◽  
Test Time ◽  
Tubular Heat Exchanger ◽  
Surface Deposition ◽  
Test Conditions ◽  
Aircraft Fuel ◽  
Dynamic Experiments ◽  
Selection Of

Surface fouling in aircraft fuel lines that results from autoxidation of aviation fuel remains a serious and very complicated problem. This area has been studied using two Jet-A fuels, POSF-2827 and POSF-2980. The results of a series of dynamic experiments conducted in a single-pass, tubular heat exchanger operated at very slow flow rates under near-isothermal conditions are reported herein. Such studies, by minimizing complications resulting from fluid dynamics and heat flow, constitute a simpler global approach to the chemistry of fouling. The basis for the selection of experimental test conditions is discussed, and data from measurements of dissolved oxygen and surface deposition as a function of fuel stress duration are presented. The effects of parameters such as reaction temperature, tube diameter, experimental test time, and fuel dopants are considered.

Studies on the Protection of Aircraft Oil Tank’s Microbic Erosion Based on Properties of Machinery and Biological Materials

2015 ◽  
Vol 730 ◽  
pp. 245-248
Author(s):  
Zheng Wei ◽  
Fang Chao Wang ◽  
Yuan Sheng Wang ◽  
Hong Wei Yu
Keyword(s):  
Quaternary Ammonium ◽  
Microbial Growth ◽  
Microbiologically Influenced Corrosion ◽  
Aviation Fuel ◽  
Fuel System ◽  
Microbiological Corrosion ◽  
Microbial Corrosion ◽  
Aircraft Fuel ◽  
Fuel Tanks ◽  
Growth And Reproduction

Microbiological corrosion to the aircraft fuel system caused by microbial growth and reproduction in aviation fuel may also lead a serious safety risk to aircraft. Categories of microorganism in aircraft fuel tanks,reasons and protection methods of microbial corrosion were summarized and the research of microbiologically influenced corrosion protection which connected with quaternary ammonium germicides was prospected in this paper.

A survey of microbial contamination in aviation fuel from aircraft fuel tanks

2019 ◽  
Vol 65 (2) ◽  
pp. 371-380
Author(s):  
Dong Hu ◽  
Jie Zeng ◽  
Shangshu Wu ◽  
Xi Li ◽  
Chengsong Ye ◽  
...  
Keyword(s):  
Microbial Contamination ◽  
Aviation Fuel ◽  
Aircraft Fuel ◽  
Fuel Tanks

scholarly journals Evaluation of the Effectiveness of a Metal Deactivator and Other Additives in Reducing Insolubles in Aviation Fuels

1996 ◽  
Author(s):  
E. Grant Jones ◽  
Walter J. Balster ◽  
Lori M. Balster
Keyword(s):  
Surface Passivation ◽  
Aviation Fuel ◽  
Jet Fuels ◽  
Dissolved Metals ◽  
Radical Initiation ◽  
Tubular Heat Exchanger ◽  
Advantages And Disadvantages ◽  
Fundamental Information ◽  
Aircraft Fuel ◽  
Free Radical Initiation

Surface fouling in aircraft fuel lines resulting from autoxidation of aviation fuel leads to reduced efficiency as deposits collect on heat exchangers, nozzles, and servocontrols and may ultimately lead to system failure. Metal surfaces and trace quantities of metals dissolved in the fuel exacerbate the surface-fouling problem because they can catalyze free-radical initiation, thereby accelerating autoxidation. Additives and additive packages containing antioxidants, dispersants, and metal deactivators (MDA) have been shown to reduce insolubles in some fuels. Because of metal chelation and possible metal-surface passivation, MDA has been proposed as an additive component to be included in all fuels, even those without dissolved metals. The goal of the present study was to obtain fundamental information on the behavior of MDA under conditions where surface-passivation effects are minimal. Experiments have been conducted to 1) study the effects of adding MDA to fuels containing a significant concentration of dissolved metals (i.e., chelation) and to those containing minor concentrations of dissolved metals and 2) investigate interactions when MDA is used in conjunction with an antioxidant and a dispersant. Simple fuel-line-fouling simulations with a single-pass tubular heat exchanger operated under near-isothermal conditions have been conducted to study the thermal behavior at 185°C of several neat and MDA-treated jet fuels as well as fuels treated with MDA plus other additives. Comparison of neat and treated fuels is based on several criteria: 1) dependence of autoxidation on stress duration, 2) dependence of surface deposition on stress duration, and 3) quantity of total insolubles (bulk filterables and surface deposits). Potential advantages and disadvantages of using MDA alone and in combination are discussed.

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