Quality Assurance & Gas Composition Presented by Mr Billy - - PowerPoint PPT Presentation

quality assurance gas composition
SMART_READER_LITE
LIVE PREVIEW

Quality Assurance & Gas Composition Presented by Mr Billy - - PowerPoint PPT Presentation

Quality Assurance & Gas Composition Presented by Mr Billy Tabourlos, AGA Background Energy Why the injuries and fatalities? What are we doing about it? AGA Certification Safety Devices Future Work Gas Cartridges


slide-1
SLIDE 1

Quality Assurance & Gas Composition

Presented by Mr Billy Tabourlos, AGA

slide-2
SLIDE 2
  • Background
  • Energy
  • Why the injuries and fatalities?
  • What are we doing about it?
  • AGA Certification
  • Safety Devices
  • Future Work
slide-3
SLIDE 3
  • Gas Cartridges come in different shapes and

sizes 220g, 435g, 450g, short fat, tall skinny

  • Different connections and sealing means

Re-sealable valve, screw type, pierceable

  • Mass produced in 100’s of millions
slide-4
SLIDE 4
slide-5
SLIDE 5

This presentation will focus on the 220g Butane cartridges

slide-6
SLIDE 6
  • In the Australian market to date, most 220g cartridges come

from Korea, but are also manufactured in many other countries

  • Differences in design criteria and quality assurance protocols
  • They are shipped, transported and stored with gas in them,

usually >95% Butane

  • Usually sold full in packs of 4 or 6
  • Predominately used with camping and leisure products
slide-7
SLIDE 7

Standards

  • EN 417
  • UL 147B
  • KGS AC211
  • JIA F 006
  • DOT 39
  • AS 2030 (Not a design Standard)
  • AS 2278 (Aerosol Standard)
slide-8
SLIDE 8

Gas Composition

  • Gas compositions vary
  • Predominately Butane (either I-Butane
  • r N-Butane)
  • Some Propane – higher vapour pressure
slide-9
SLIDE 9

Composition

  • Random selection from the Australian market
slide-10
SLIDE 10
  • Butane contains ~50MJ/kg of energy
  • ~ 12 MJ of energy in a 220g cartridge
  • Equivalent to 2.6kg of TNT
  • 1 MJ = 1,000,000 J
  • LPG expands ~270 times the volume from liquid

phase to gaseous phase

slide-11
SLIDE 11
  • Accelerate a 1 tonne car from 0 – 100km/h

~ 0.4 MJ (30 times less energy)

slide-12
SLIDE 12
  • Running for 1 hour

~ 3 MJ (4 times less energy)

slide-13
SLIDE 13
  • AGA Experiment (explosion without ignition)
slide-14
SLIDE 14
  • AGA Experiment (explosion with ignition)
slide-15
SLIDE 15

1 2 3 4 5 6 7 8 9 10 11 12 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Number of gas appliance Product Recalls in Australia Year

Number of gas product recalls since 2006

slide-16
SLIDE 16
  • Incidents involving fires and explosions of gas

cartridge cookers escalated over the last few years

  • Fatalities and serious injuries
  • Rely heavily on the quality and design of the

appliances

slide-17
SLIDE 17
  • Do not have a safety device of their own
  • Rupture pressure at ~1.5MPa compared to a refillable

cylinder at ~10MPa

slide-18
SLIDE 18
  • The nozzle dimensions are critical to ensure safe sealing with

appliances

  • Standards may vary around the world
  • Some Standards do not include dimensions
  • May not be compatible with appliances
slide-19
SLIDE 19
  • Improving cartridge cooker requirements
  • Extreme temperature hazard test
  • Two independent shut off devices
  • Etc.
  • Improving the quality assurance of gas

cartridges

slide-20
SLIDE 20
  • Liaised with the world leaders in cartridge

manufacturing

  • Shared information with leading notified and

testing bodies globally

  • Liaised with government regulators in Australia

and internationally

  • Developed the AGA Certification Scheme and

Standard

slide-21
SLIDE 21

What does the Scheme encompass?

  • Factory Inspections

Inspection and testing requirements along the production line

  • Type Testing

Laboratory testing by independent AGA Authorised Laboratories

slide-22
SLIDE 22
  • Post Certification Surveillance

On-site

slide-23
SLIDE 23
  • Random market surveillance

& Laboratory Testing

slide-24
SLIDE 24

Cartridge Standard AGA 301 covers:

  • Dimensions
  • Gas composition
  • Pressure testing
  • Drop Testing
  • Durability Testing
  • Leakage Testing
  • Vibration Testing
  • Material Testing
  • Connection nozzle tests
slide-25
SLIDE 25

Manufacturers developed safety devices

  • CRV
  • RVR
  • PRV
  • Shut-off
slide-26
SLIDE 26

CRV (Countersink release vent) and RVR

  • Releases gas in a controlled manner before

rupture occurs

  • Prevents an explosion
  • Gives enough time for the operator to react

and clear the area

slide-27
SLIDE 27

PRV (Pressure relief valve)

  • Relieves the pressure in the cartridge

before the deformation pressure is reached.

  • Re-seats when pressure drops to allowable

limit

slide-28
SLIDE 28

Shut off

  • Shuts the gas off at a pre-determined

pressure

  • Stops the flow of gas to the appliance
slide-29
SLIDE 29
  • Develop Standard for Safety Devices
  • Share information with leading

international bodies such as JIA, KGS, CSA, BSI & TUV

  • Work closely with the manufacturers
  • Liaise with government bodies

nationally and internationally

slide-30
SLIDE 30

QUESTIONS