CIVIL AIRCRAFT INERTING AND VENTING SYSTEM DESIGN

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Karami Adel; Ghasem nia Atefeh; Asli Majid; Mesgarpour Tousi Abloghasem

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Seminar Paper

Paper Information

Seminar: CONFERENCE OF IRANIAN AEROSPACE SOCIETY
Year:2015 | Issue:14

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Title

CIVIL AIRCRAFT INERTING AND VENTING SYSTEM DESIGN

Author(s)

Karami Adel | Ghasem nia Atefeh | Asli Majid | Mesgarpour Tousi Abloghasem

Keywords

FUEL SYSTEM

VENTING

VAPOR

INERTING

Abstract

AIRCRAFT FUEL SYSTEMS ARE COMPLEX SYSTEMS ANDTHE FUEL AS AN IMPORTANT PART OF THE SYSTEM NEEDS SOME SAFE SUBSYSTEMS IN ORDER TO MAINTAIN THE FUEL PRESSURE AND OXYGEN PERCENTAGE IN THE SAFE RANGE. THE PRESSURE AND FLAMMABILITY OF FUEL MAY CAUSE DANGEROUS SITUATION FOR AN AIRCRAFT. THE STRUCTURAL LIMITS OF THE FUEL TANKS MAKES THE DESIGNER TO PREPARE SOME FACILITIES TO LEVEL VAPOR FUEL PRESSURE IN THE TANKS, THIS IS DONE BY VENTING SYSTEM. FURTHERMORE THE FUEL FLAMMABILITYOBLIGATES THE DESIGNER TO LEVEL OXYGEN PERCENTAGE VIA VENTING AND INERTING. IN ORDER TO DESIGN A SAFE AND RELIABLE FUEL SYSTEM, THERE SHOULD BE FACILITIES PREVENTING ANY DIFFERENTIAL PRESSURE AND IGNITION IN THE FUEL SYSTEM AND TANKS. THE PRESSURE BETWEEN THE TANKS AND EACH TANK WITH ATMOSPHERE IS ADJUSTED VIA VENTING SYSTEM. THE VENTING IS DONE BY TRANSFERRING FUEL VAPOR TO THE SURGE TANKS WHICH ARE RELATED TO ATMOSPHERE THROUGH NACA DUCT. IN SOME PHASES SUCH AS CRUISE, AN OPEN VENTING SYSTEM CAN MAINTAIN OXYGEN PERCENTAGE IN THE FUEL VAPOR IN A SAFE MARGIN IN ORDER TO PREVENT IGNITION IN THE TANKS, YET IT IS NOT SATISFIED IN ALL PHASES OF FLIGHT. A NOBLE SYSTEM PRESENTED FOR THIS AIM IS INERTING SYSTEM IN WHICH BY REDUCING AND CONTROLLING OXYGEN PERCENTAGE IN A TANK, ANY FLAME POSSIBILITY IS PROHIBITED. THE INERTING SYSTEM CONTROLS THE FUEL VAPOR OXYGEN PERCENTAGE. THIS IS DONE BY DISCHARGING NITROGEN ENRICHED AIR IN THE FUEL TANKS. IN THIS PAPER IT IS TRIED TO DESCRIBE THE ROLE AND IMPORTANCE OF THESE SYSTEM AND STANDARDS LEAD TO UTILIZING THESE SYSTEMS IN A CIVIL AIRCRAFT FUEL SYSTEM. ALSO IT IS TRIED TO PRESENT THE FUEL SYSTEM DESIGNED BY THE WRITERS USING VENTING AND INERTING IN THE TANKS.

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APA: Copy

Karami, Adel, Ghasem nia, Atefeh, Asli, Majid, & Mesgarpour Tousi, Abloghasem. (2015). CIVIL AIRCRAFT INERTING AND VENTING SYSTEM DESIGN. CONFERENCE OF IRANIAN AEROSPACE SOCIETY. SID. https://sid.ir/paper/945727/en

Vancouver: Copy

Karami Adel, Ghasem nia Atefeh, Asli Majid, Mesgarpour Tousi Abloghasem. CIVIL AIRCRAFT INERTING AND VENTING SYSTEM DESIGN. 2015. Available from: https://sid.ir/paper/945727/en

IEEE: Copy

Adel Karami, Atefeh Ghasem nia, Majid Asli, and Abloghasem Mesgarpour Tousi, “CIVIL AIRCRAFT INERTING AND VENTING SYSTEM DESIGN,” presented at the CONFERENCE OF IRANIAN AEROSPACE SOCIETY. 2015, [Online]. Available: https://sid.ir/paper/945727/en

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