Microwave resonance method for measuring microliter volumes of free moisture in aviation fuels

2020 ◽  
pp. 49-56
Author(s):  
Vitaly V. Volkov ◽  
Michael A. Suslin ◽  
Jamil U. Dumbolov

One of the conditions for ensuring the safety of air transport operation is the quality of aviation fuel refueled in aircraft. Fuel quality control is a multi-parameter task that includes monitoring the free moisture content. Regulatory documents establish the content of free water no more than 0.0015% by weight. It is developed a direct electrometric microwave resonance method for controlling free moisture in aviation fuels, which consists in changing the shape of the water drops by pressing them on a solid surface inside a cylindrical cavity resonator. This can dramatically increase dielectric losses. Analytical and experimental analysis of the proposed method is carried out. The control range from 0,5 to 30 μl of absolute volume of moisture in aviation fuels with a maximum error of not morethan 25 % is justified. The sensitivity of the proposed method for monitoring microwave losses in free moisture drops transformed into a thin layer by pressing is an order of magnitude greater than the sensitivity of the method for monitoring microwave losses in moisture drops on a solid surface in a resonator. The proposed method can be used as a basis for the development of devices for monitoring the free moisture of aviation fuels in the conditions of the airfield and laboratory. The direction of development of the method is shown.

2020 ◽  
Vol 63 (3) ◽  
pp. 226-234
Author(s):  
V. V. Volkov ◽  
M. A. Suslin ◽  
J. U. Dumbolov

2014 ◽  
Vol 50 (4) ◽  
pp. 354-361
Author(s):  
D. U. Dumbolov ◽  
S. A. Galko ◽  
F. E. Sharykin ◽  
M. A. Suslin ◽  
V. Yu. Prishchepenko
Keyword(s):  

2017 ◽  
Vol 8 (3) ◽  
pp. 50-59 ◽  
Author(s):  
Kanon Ruamchat ◽  
Natcha Thawesaengskulthai ◽  
Chaipong Pongpanich

Abstract The Joint Inspection Group (JIG) standard for aviation fuel quality management assists in the operational process and maintenance of aviation fuel from its point of origin and through distribution systems to airports. Currently, problems arise as the JIG standard and quality management in aviation fuel are isolated and have independent procedures. Merging the JIG standards with ISO 9001:2015 can override original JIG’s philosophy by connecting all quality assessment, and management parties involved, throughout the supply chain. This integration can harmonize auditing tasks, focusing on risk/opportunity, and continue quality improvement focus. This paper proposes a development of quality management system (QMS) under ISO 9001:2015 for aviation fuelling service in a systematic way. The content and critical success factors of ISO 9001:2015 and JIG standards were studied. The beneficial synergies, similarities, and logical linkages between both standards are identified. This QMS was developed in the largest petroleum company in Thailand and 60 selected experts were surveyed, with a response rate of 88.3%, for their agreement on integrated criteria. Two external quality auditors, who have ISO 9001 and JIG expertise, were interviewed to modify our initial proposed QMS. The final QMS was implemented in the into-plane fuelling services as the first phase of this implementation. Results of framework implementation are discussed in a case study. There are mutual benefits resulting from the integration of JIG and ISO 9001:2015 standards. This QMS provides a unified process for quality management practices, and enhances the effectiveness of risk evaluation as well as the opportunity for continued quality improvement. It facilitates the identification of ISO 9001:2015 requirements and establishes relationships between the roles of JIG standard and the clauses of ISO 9001:2015. The first experience from five airports as the pilot study of proposed QMS implementation minimized conflicts and duplications between JIG and ISO 9001:2015 standards, reduced the number of into-plane fuelling service incidents reported, such as oil spill, machine stoppage, re-inspections, and recall costs.


1999 ◽  
Vol 3 (2) ◽  
Author(s):  
В. М. Кулишенко ◽  
Б. Ф. Лахин ◽  
Б. А. Малов
Keyword(s):  

Author(s):  
Czesław Wojdat

  The problem of delivering aviation fuel to military aircraft in the field includes not only ensuring the appropriate fuel quality, but also the safety of its transport. Delivering the appropriate amount of fuel to a specific place, irrespective of the terrain conditions, brings many difficulties. They are related to the availability of the appropriate transport equipment that would enable the safe delivery of high-quality aviation fuel to aircraft, regardless of the condition of access roads to airports and airfields. The article analyzes mobility capabilities of the available transport equipment, as well as its suitability and functionality under field conditions.   


Author(s):  
C. A. Moses ◽  
M. W. Shayeson ◽  
P. A. Karpovich

The U.S. Navy’s concerns about the thermal stability of aviation fuel stem from a combination of increased performance requirements of engines and potential degradation in fuel quality. The results of recent atomizer fouling tests with hot fuel are presented. These are combined with similar results from Air Force programs and analyzed with respect to the impact on engine performance and reliability.


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