X

Download Passenger Aircraft Environmental Control System PowerPoint Presentation


Login   OR  Register
X

Share page



  Preview

               
Home / Science & Technology / Science & Technology Presentations / Passenger Aircraft Environmental Control System PowerPoint Presentation

Passenger Aircraft Environmental Control System PowerPoint Presentation

worldwideweb By : worldwideweb

On : Dec 09, 2014

In : Science & Technology

Embed :
789
views

0
downloads
Login / Signup - with account for


  • → Make favorite
  • → Flag as inappropriate
  • → Download Presentation
  • → Share Presentation
  • Slide 1 - Passenger Aircraft Environmental Control System Safety Analysis Presented By: Brian Cranley, Ali Dalal, Chris Hankins, Josh Martin
  • Slide 2 - Objective To analyze and perform a System Safety Analysis on Environmental Control Systems (ECS) in passenger aircraft To derive possible redesigns in procedures and hardware involved in the functionality of the ECS
  • Slide 3 - Scope Focuses on the hazards involved in a passenger aircraft cruising at an altitude of 35,000ft
  • Slide 4 - System Components Bleed Air Air Conditioning Ventilation & Distribution Pressure Regulation boeing.com
  • Slide 5 - System Description Bleed Air Q ”heart” of the ECS Q automatic aside from an on/off switch in cockpit Q comprised of the engine, valves, ports, and sensors that allow airflow Q selects the right bleed port to send air through (dependant upon where the aircraft is, i.e. takeoff, cruise, or landing) Q decreases the pressure and temperature of air entering the aircraft so it can be dispersed for the remainder of the ECS ASHRAE
  • Slide 6 - System Description (cont.) Ozone Converter Q disassociates ozone to oxygen molecules Q uses a catalyst such as palladium (Pd) Q up to 95% effective when new limcoairepair.com
  • Slide 7 - System Description (cont.) Air-conditioning Packs Q air is dried to 10-20% humidity Q air is cooled from 400°F (temperature when leaving ozone converter) to 60°F Q most commercial aircraft utilize two or three air-cycle machines linked in parallel as a safety precaution against in-flight failures ntsb.gov
  • Slide 8 - System Description (cont.) Distribution and Filtration Q air from air-conditioner is mixed in manifold with filtered, re-circulated air. Q air is treated with a HEPA (high-efficiency particulate air) filter - nearly 99.9% effective in removing microbes Q air is distributed from manifold to ductwork, and then through vents at roughly 500 fpm Q air stays in cabin 2-3 minutes before it is re-circulated boeing.com
  • Slide 9 - System Description (cont.) Backup Oxygen Supply Q in event of ECS system failure Q oxygen stored in container and valve assemblies at 1850psi Q reduced to 70psi for delivery through overhead masks
  • Slide 10 - System Description (cont.) Pressure Regulation Q desired pressure altitude of 8000ft Q cabin controlled by pressure regulator Q located so that all cabin air must pass through the outflow valve section to return to the atmosphere Q regulator assembly recognizes the changes in ambient pressure and controls the inflow and/or outflow of air depending on controller signals Q safety valve incorporated to reduce high cabin pressure boeing.com
  • Slide 11 - Analyses Performed Preliminary Hazard Analysis (PHA) Failure Mode & Effects Analysis (FMEA) Fault Tree Analysis (FTA)
  • Slide 12 - Preliminary Hazard Analysis PHA Q takes place during the design phase Q review of historical safety experience Q identifies areas for concern Q identifies and evaluates hazards Q begins to consider safety design criteria
  • Slide 13 - ppt slide no 13 content not found
  • Slide 14 - PHA(cont.) Bleed Air System Q IP Valve Q temperature sensor Pressurization System Q regulator assembly Q relief valve
  • Slide 15 - Failure Mode & Effects Analysis FMEA Q reliability form of analysis Q may contain events that will not contribute to an accident Q analyzes system components for their contribution to a state of unreliability
  • Slide 16 - ppt slide no 16 content not found
  • Slide 17 - ppt slide no 17 content not found
  • Slide 18 - ppt slide no 18 content not found
  • Slide 19 - FMEA (cont.) Bleed Air System Q IP Valve Q temperature sensor Pressurization System Q regulator assembly Q relief valve Auxiliary Oxygen Supply Q storage tank Q fire protection
  • Slide 20 - Fault Tree Analysis FTA Q method structures relations in a graphic representation to form a Boolean logic model Q structured to end in a specific outcome Q directs deductively to accident-related events Q can be qualitative or quantitative Q provides insight into system behavior
  • Slide 21 - ppt slide no 21 content not found
  • Slide 22 - ppt slide no 22 content not found
  • Slide 23 - Conclusions & Recommendations Install redundant temperature sensors Q downstream of precooler Q entrance to cabin Add redundant valves Q downstream of IP valve Q cabin relief valves
  • Slide 24 - C & R (cont.) Fire protection Q fire resistant materials Q install sprinkler heads Q smoke hoods Auxiliary Oxygen Supply Q explosion resistant casing for storage tank Q O2 sensors Q manual O2 mask release
  • Slide 25 - C & R (cont.) Frequent software upgrades Detailed maintenance procedures
  • Slide 26 - Questions
Domino Free PowerPoint Template

Domino

Views : 603

Gym Free PowerPoint Template

Gym

Views : 574

Happy Birthday Free PowerPoint Template

Happy Birthday

Views : 640

Image Sharing Free PowerPoint Template

Image Sharing

Views : 484

Wedding Cake Free PowerPoint Template

Wedding Cake

Views : 845

Puzzle Free PowerPoint Template

Puzzle

Views : 329

Sperm Free PowerPoint Template

Sperm

Views : 876

Parents Free PowerPoint Template

Parents

Views : 442

Airplane Free PowerPoint Template

Airplane

Views : 438

Anniversary Free PowerPoint Template

Anniversary

Views : 614

ECG Heart Beat Free PowerPoint Template

ECG Heart Beat

Views : 1721

Firefighters Free PowerPoint Template

Firefighters

Views : 1323

Piano Free PowerPoint Template

Piano

Views : 628

Question Mark Free PowerPoint Template

Question Mark

Views : 526

Germ Free PowerPoint Template

Germ

Views : 833

Maple Leaf Free PowerPoint Template

Maple Leaf

Views : 507

Back to School Free PowerPoint Template

Back to School

Views : 542

Unity Free PowerPoint Template

Unity

Views : 568

Smoker Free PowerPoint Template

Smoker

Views : 522

Orthodontist Free PowerPoint Template

Orthodontist

Views : 500

Description : Passenger Aircraft Environmental Control System Presentation : Download Passenger Aircraft Environmental Control System ppt presentation and make your presenation attractive

Tags : Passenger Aircraft Environmental Control System

Shortcode : Get Shareable link