Publications

Hydrogen Embrittlement (HE) is a topical issue for pipelines transporting sour products. Engineers need a simple and effective approach in materials selection at design stage. In other words they must know if a material is susceptible to cracking to be able of:selecting the right material and apply correct operational measures during the service life.Following ASTM F2078 HE is “a permanent loss of ductility in a metal or alloy caused by hydrogen in combination Read More

The report analyses the technical impacts to end-users of natural gas in Australian distribution networks when up to 10% hydrogen (by volume) is mixed with natural gas.The full report can be found at this link.

The target for European decarburization encourages the use of renewable energy sources and H2 is considered the link in the global energy system transformation. So research studies are numerous but only few facilities can test materials and components for H2 storage. This work offers a brief review of H2 storage methods and presents the preliminary results obtained in a new facility. Slow strain rate and fatigue life tests were performed in H2 at Read More

Development of marine engines could largely benefit from the broader usage of methanol and hydrogen which are both potential energy carriers. Here numerical results are presented on tri-fuel (TF) ignition using large-eddy simulation (LES) and finite-rate chemistry. Zero-dimensional (0D) and three-dimensional (3D) simulations for n-dodecane spray ignition of methanol/hydrogen blends are performed. 0D results reveal the beneficial role of hy Read More

Hydrogen enhanced decohesion is expected to play a major role in ferritic steels especially at grain boundaries. Here we address the effects of some common alloying elements C V Cr and Mn on the H segregation behaviour and the decohesion mechanism at a Σ5(310)[001] 36.9∘ grain boundary in bcc Fe using spin polarized density functional theory calculations. We find that V Cr and Mn enhance grain boundary cohesion. Furthermore all elements Read More

The study focuses on the aspect of using the structure of gasars i.e. materials with directed open porosity as a potential hydrogen storage. The structure of the tested gasar is composed of a large number of thin open tubular pores running through the entire longitudinal section of the sample. This allows hydrogen to easily penetrate into the entire sample volume. The analysis of pore distribution showed that the longest diffusion path needed for full Read More

Hydrogen has been identified as a potential energy vector to decarbonise the transport and chemical sectors and achieve global greenhouse gas reduction targets. Despite ongoing efforts hydrogen technologies are often assessed focusing on their global warming potential while overlooking other impacts or at most including additional metrics that are not easily interpretable. Herein a wide range of alternative technologies have been assessed to determi Read More

In order to reduce global greenhouse gas emissions renewable energy technologies such as wind power and solar photovoltaic power systems have recently become more widespread. However Japan as a nation faces high reliance on imported fossil fuels for electricity generation despite having great potential for further renewable energy development. The focus of this study examines untapped geographical locations in Japan’s northern most prefecture Ho Read More

Europe has built up one of the best gas distribution infrastructures in the world. There’s one problem though. It distributes natural gas a fuel that we will hardly be able to use if we’re to reach our net zero targets. Can we use the infrastructure instead for clean hydrogen – either blended with natural gas as a stepping stone or with pure hydrogen in the future? In this episode we put aside discussion on the extent to which we should do this – and focus on Read More

The U.S. energy system is evolving as society and technologies change. Renewable electricity generation—especially from wind and solar—is growing rapidly and alternative energy sources are being developed and implemented across the residential commercial transportation and industrial sectors to take advantage of their cost security and health benefits. Systemic changes present numerous challenges to grid resiliency and energy affordability cre Read More