RP3.2-01: Proximity and ventilation requirements for fuel networks

Executive Summary

This research undertakes experimental, analytical and numerical studies to provide guidance on ventilation requirements and proximity distances related to gas distribution networks in Australia. The main objectives of this research are:

  • To develop a clear understanding of the risk factors (likelihood and consequences) related to proximity distances in urban settings and ventilation of enclosures, incorporating as many dimensions of the problem as are considered relevant and practical.
  • To carry out additional research aimed at quantifying the risks.
  • To provide a set of clear guidelines for proximity distances in urban residential/commercial settings and for adequate ventilation requirements for enclosures that house gas distribution network assets.


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Commencement / End Date June 2019 to May 2022
Outcomes / Impact

The Australian energy industry will benefit from the knowledge generated by the this research in a number of ways:

  • Developing a better understanding of the potential of future fuels (such as methane/hydrogen blends) in the Australian energy supply mix.
  • Justifications/clarifications for specifications in current Standards.
  • Effective design strategies for gas distribution networks and enclosure ventilation.
  • Opportunities to adapt existing infrastructure to accommodate newer low-carbon fuels.
  • Development of educational material for the gas industry such as properties of new low-carbon fuels, proximity distances in urbanised regions and adequate ventilation for enclosures susceptible to gas leakage.
Partners University of Wollongong, Jemena, GPA Engineering, AGIG, APA Group and independent advisors.
Research Contact

Douglas Proud

Research & Utilisation Program Coordinator