June 2019 NewsFlash - AGA - Gas Appliance Testing with Hydrogen

June 2019 NewsFlash

  • 30-06-2019

  • News

AGA NewsFlash

Appliance Testing with Hydrogen / NG mix

UK Amends Climate Change Act

Biogas Opportunities for Australia

LPG Cylinder Valve Connection Update

Standards Update

Appliance Testing with Hydrogen / Natural Gas Mix

Future Fuels CRC engaged The Australian Gas Association (AGA) to test a selection of domestic and commercial gas appliances when operated with a gas supply comprising natural gas and hydrogen.

The testing is being conducted at AGA’s Laboratory & Hydrogen Test Centre located in Braeside Victoria.  On 18th June AGA hosted a demonstration for Future Fuels CRC to demonstrate the effects on burner performance when the concentration of hydrogen in the natural gas supply was progressively increased from 0% – 50% hydrogen in 10% incremental steps.  Three common domestic appliances were chosen for the demonstration and included:

* Upright domestic cooker comprising a cooktop and separate griller and oven compartments.

* Open-flued radiant / convection space heater.

* Decorative log-effect space heater.

During the demonstration, AGA engineers described the difference in physical properties of natural gas and hydrogen and the effects the different properties have on burner operation, performance and flame characteristics.

AGA is firmly committed to contributing to activities in the Hydrogen Arena, and as events unfold we will keep you posted in future editions of NewsFlash.

UK’s Amends Climate Change Act – net zero carbon emissions by 2050

In the dying days of UK Prime Minister Theresa May’s government, legislation has been passed to amend the UK’s Climate Change Act 2008. This historic amendment commits the United Kingdom to achieve to be net zero emissions by 2050.  This announcement is expected to make the UK become the first major economy of the G7 nations to set a net zero emissions target in law – a precedent that the UK Government expects to see other major economies follow suit.

“As the first country to legislate for long-term climate targets, we can be truly proud of our record in tackling climate change.  We have made huge progress in growing our economy and the jobs market while slashing emissions.” Prime Minister May said in her parliamentary address.

“Now is the time to go further and faster to safeguard the environment for our children. This country led the world in innovation during the Industrial Revolution, and to amend now we must lead the world to a cleaner, greener form of growth.” Theresa May said.

Whilst the announcement has been welcomed, some groups have expressed reservations about the plan relying on international carbon credits to achieve the net zero carbon emissions targets by 2050.

Biogas Opportunities for Australia

The Australian biogas industry is growing rapidly and fulfills a significant and growing role in Australia’s overall energy mix.  Biogas is a renewable energy source and is recognised as being a reliable and local source of energy that assists the decarbonisation of our economy.  It is a secure, continuous and versatile source of energy that can contribute to the national energy supply.  Biogas transformed into biomethane is a renewable gas that can replace natural gas and can be used in homes for cooking, heating and hot water, or as a fuel for gas vehicles.  It can be injected into the existing gas distribution network or used directly on site.  Biogas also provides an alternative route for waste treatment and, as such, can help divert waste from landfill.

Bioenergy Australia in conjunction with its partner organisations recently commissioned ENEA Consulting to prepare a report outlining the opportunities biogas offers in Australia.   The report includes a number of recommendations aiming to advance Australia’s biogas sector.  These are:

1. Setting renewable gas target(s)

2. Launching industry stakeholder consultation for policy design.

3. Introducing waste management strategies to support feedstock quality and quantity.

4. Encouraging plant operators, especially landfill operators, to maximise biogas use.

5. Exploring opportunities for the transport sector.

6. Providing regulatory clarity for the digestate.

7. Simplifying approval processes.

8. Informing the community about biogas and its benefits.

9. Exploring future work.

You can download the full report from the link below:


LPG Cylinder Valve Connection Update

As already mentioned in previous NewsFlashes, industry stakeholders have agreed to replace the current POL (Type 21) with the “QCC with Type 21 internal threaded valve”.

Specifically, the relevant international Standards which cover this connection include: 

Performance Requirements: UL 2061 (Standard for Adapters and Cylinder Connection Devices for Portable LP-Gas Cylinder Assemblies) or ANSI Z21.81/CSA 6.25 (Cylinder Connection Devices);

Thread dimensions: CGA V-1 (Standard for compressed gas cylinder valve outlet and inlet connections), in particular the CGA 791 connection.

The specific time frames to implement the changes we anticipate will not meet the target of 1st January 2020 as a lot more work to update the Standards is needed. It is important to note, that updates to Certifications will not be made until the Standards are published.

Latest Standards Updates

Published Standards

AS 4618:2019 (Gas appliance regulators) and AS 4621:2019 (Regulators for use with liquefied petroleum – Vapour phase) have both been published on 14th May 2019.

Please contact your AGA Client Manager if you have any queries regarding your Certifications.

Standards out for Public Comment
AS 4631:2018 Amd 1 (Semi-rigid connectors for gas)
Public comment ending on 11th July 2019

If you would like to submit any comments, you may forward them to our Group Manager, Technical Operations, Mr Bill Tabourlos [btabourlos@aga.asn.au], or directly through the Standards Australia website: Click Here