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January 31, 2018
Category: Research Projects 

Recent Publications By Energy Pipelines CRC Researchers

In addition to numerous detailed research reports provided to the APGA RSC member companies, Energy Pipelines CRC researchers have published the outcomes of their research in the form of journal and conference papers, books, theses, etc. Over the past 6 months, 16 scientific journal papers, 2 conference papers, 3 theses and 1 book chapter have been published by our researchers to share and exchange their ideas and findings with the scientific community. Below are some highlights of the recent publications from researchers working on Energy Pipelines CRC research projects:

Chemical degradation of PE pipes induced by squeeze-off mechanical compression

Squeeze-off is a widely used technique within the gas distribution industry for temporary interruptions to supply, both when extending and repairing the polyethylene (PE) pipe networks. Over the years, a number of pipe failures have been attributed to damage caused at the squeeze-off location. The recent publication from Deakin researchers involved in research program 1 has revealed that over-compression of the PE pipe during squeeze-off causes the mechano-chemical degradation that is directly linked to the integrity of the PE pipe prior to being squeezed-off.

Weblink: https://doi.org/10.1016/j.polymertesting.2017.11.029

High pH stress corrosion crack paths; straight or inclined?

Energy Pipelines CRC researchers at the University of Adelaide and ANSTO have recently published a work on failure analysis of X42 pipe steel. The research reveals that a combined condition of operating and residual (mainly bending) stresses might be sufficient to exceed the threshold stress for high pH stress corrosion cracking (SCC) of X42 to initiate even in the course of normal operating stresses and temperature. The research also reveals that the interdependency of crack tip plasticity, anisotropy in microstructural texture and residual stresses affect the resulting crack paths in steels. The SCC crack paths (straight in X42 and inclined in X65) are therefore believed to be dictated by the interdependency of the pipe manufacturing (residual stress, texture) and operating pressure parameters.

Weblink: https://doi.org/10.1016/j.engfailanal.2017.12.004

CFD models evaluate the terrain effects on safe distance of CO2 released from pipelines

As part of carbon capture and storage (CCS) projects, carbon dioxide (CO2) is usually transported via pipelines from source to sequestration location and ensuring the safety of the operation is of great importance. Therefore, a comprehensive understanding of the effects of a CO2 release from pipelines deployed near congested industrial or urban areas is essential to allow the appropriate safety precautions to be taken. Interesting research by University of Wollongong researchers involved in research program 3 has shown that computational fluid dynamics (CFD) modelling can predict the effect of complex terrain features on the safe distance of CO2 released from high-pressure pipelines. The researchers have managed to validate the models against the results of a heavy gas dispersion experiment carried out at Thorney Island, England.

Weblink: https://doi.org/10.1016/j.ijggc.2017.10.009

Senior executive incentive plans and safety objectives

In the private sector, incentive plans are one of the major means used by directors to align the interests of senior management with organisational interests. Findings presented by researchers of RMIT involved in research program 4 show that, although safety indicators are included in annual reports, these only appear in short-term incentive plans, indicating that senior executives are not incentivised to align their long-term decision-making with long-term safety objectives. Findings from this research demonstrate that valid and meaningful safety indicators should be developed in order to better align the focus of senior management to include safety performance in the construction industry.

Weblink: www.tandfonline.com/doi/full/10.1080/01446193.2017.1381752

If you wish to find more on recent Energy Pipelines CRC publications you can find the full list of published works or the period of June 2017-January 2018 below.

List of publications (June 2017-January 2018)

Theses

  • Measuring and understanding coating degradation under combined mechanical, electrochemical, and environmental effects (PhD’s thesis), Ranade, S. D. (2017), Deakin University, Geelong, Australia.
  • The effect of separations on the assessment of Charpy impact tests (PhD’s thesis), Davis, B. J. (2017), University of Wollongong, Wollongong, Australia.
  • Power-knowledge and the performativity of risk regulation in the Australian pipeline industry (PhD’s thesis). King, D. (2017), National University of Australia. Canberra, Australia.

Journal Papers

  • Identifying mechanically induced chemical changes to vintage grade high density polyethylene pipes during squeeze-off. Byrne, N., DeSilva, R., Hilditch, T., & Lenghaus, K. (2018), Polymer Testing, 65, 242-248.
  • The initiation and propagation of coating morphological and structural defects under mechanical strain and their effects on the electrochemical behaviour of pipeline coatings. Ranade, S., Forsyth, M., & Tan, M. Y. J. (2017), Progress in Organic Coatings, 110, 62-77.
  • Monitoring Cathodic Shielding and Corrosion under Disbonded Coatings. Varela, F., Tan, M.Y., Hinton, B. and Forsyth, M., (2017), Corrosion Science and Technology, 16, 109-114.
  • Measuring and understanding the critical duration and amplitude of anodic transients. Huo, Y. and Tan, M.Y., (2017), Corrosion Engineering, Science and Technology, 1-8.
  • Susceptibility of Acicular Ferrite and Upper Bainite Microstructures to Hydrogen Assisted Cold Cracking Propagation. Costin, W., Lavigne, O., Kotousov, A. G., Ghomashchi, R., Brown, I. H., Linton, V., & Barbaro, F. J. (2017), Materials Science Forum, 909, 44-49.
  • Analysis of intergranular stress corrosion crack paths in gas pipeline steels; straight or inclined? Lavigne, O., Gamboa, E., Luzin, V., and Law, M. (2018), Engineering Failure Analysis, 85, 26-35.
  • Multi-phase decompression modelling of CO2 pipelines. Liu B., Liu X., Lu C., Godbole A., Michal G. and Tieu A.K. (2017), Greenhouse Gas: science and technology, 7, 665–679.
  • Investigation of terrain effects on the consequence distance of CO2 released from high-pressure pipeline. Liu, X., Godbole, A., Lu, C., Michal, G. (2017), International Journal of Greenhouse Gas Control, 66, 264–275.
  • Decompression modelling of pipelines carrying CO2-N2 mixture and the influence of non-equilibrium phase transition. Liu, B., Liu, X., Lu, C., Godbole, A., Michal, G., Tieu, A.K. (2017), Energy Procedia, 105, 4204–4209.
  • A CFD decompression model for CO2 mixture and the influence of non-equilibrium phase transition. Liu, B., Liu, X., Lu, C., Godbole, A., Michal, G., Tieu, A.K. (2017), Applied Energy, in press.
  • The effects of power relationships: knowledge, practice and a new form of regulatory capture. King, D., & Hayes, J. (2017), Journal of Risk Research, 1-13.
  • Working in the crowded underground: One call services as a boundary object. Hayes, J. and McDermott, V. (2017), Safety Science (In press).
  • The rise of defensive engineering: how personal liability considerations impact decision-making. Hayes, J., Maslen, S., Scott-Young, C. and Wong, J. (2017), Journal of Risk Research, 1-15.
  • Risk shifting and disorganization in multi-tier contracting chains: The implications for public safety. McDermott, V. and Hayes, J. (2016), Safety Science (In Press)
  • Shifting risk to the frontline: case studies in different contract working environments. McDermott, V., Henne, K. and Hayes, J. (2017), Journal of Risk Research,1-15.
  • Constructing safety: investigating senior executive long-term incentive plans and safety objectives in the construction sector. McDermott, V., Zhang, R.P., Hopkins, A. and Hayes, J., (2017), Construction Management and Economics, 1-15.

Conference/Workshop presentation

  • Infrastructural health monitoring using corrosion sensors: past, present and future, Mike Yongjun Tan, Corrosion & Prevention 2017 Paper 17, Sydney, Australia, 2017.
  • Approaches to overcoming ongoing pipeline corrosion monitoring challenges, K.Wang, F. Varela, and M. YJ. Tan, Corrosion & Prevention 2017 Paper 88, Sydney, Australia, 2017.

  • Stories and Standards: the impact of professional social practices on safety decision making. Hayes, J., 2018. In Beyond Safety Training (73-83), Springer, Cham.

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CEO's Update June 2018

CEO's Update June 2018

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The middle of the year is always an extremely busy time for the Energy Pipelines CRC team

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The Final Energy Pipelines CRC Research Conference will be held on 9th-10th July at the Waurn Ponds Estate.

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