Impact of Hydrogen Injection on Natural Gas Measurement

Dell’Isola, Marco; Ficco, Giorgio; Moretti, Linda; Jaworski, Jacek; Kułaga, Paweł; Kukulska–Zając, Ewa

doi:10.3390/en14248461

Cited by 20 publications

(15 citation statements)

References 13 publications

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“…Hydrogen injection will also reduce the associated greenhouse gas (GHG) emissions of the gas end-use [37]. On the other hand, challenges regarding the upper H 2 blending limits for certain end-uses [38], safety and practical issues (hydrogen embrittlement, leakage and gas measurements) [37,39], cost considerations as well as lack of a catholic national and international regulatory framework are issues that need to be resolved before the large-scale implementation of this option.…”

Section: Hydrogen Injection Into the Natural Gas Pipelinementioning

confidence: 99%

Decarbonization of Former Lignite Regions with Renewable Hydrogen: The Western Macedonia Case

Kafetzis,

Bampaou,

Kardaras

et al. 2023

Energies

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For lignite intense regions such as the case of Western Macedonia (WM), the production and utilization of green hydrogen is one of the most viable ways to achieve near zero emissions in sectors like transport, chemicals, heat and energy production, synthetic fuels, etc. However, the implementation of each technology that is available to a respective sector differs significantly in terms of readiness and the current installation scale of each technology. The goal of this study is the provision of a transition roadmap for a decarbonized future for the WM region through utilizing green hydrogen. The technologies which can take part in this transition are presented, along with the implementation purpose of each technology, and the reasonable extension that each technology could be adopted in the present context. The WM region’s limited capacity for green hydrogen production leads to certain integration scenarios, with regards to the required hydrogen, electrolyzer capacities, and required power, whereas an environmental assessment is also presented for each scenario.

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Section: Hydrogen Injection Into the Natural Gas Pipelinementioning

confidence: 99%

Decarbonization of Former Lignite Regions with Renewable Hydrogen: The Western Macedonia Case

Kafetzis,

Bampaou,

Kardaras

et al. 2023

Energies

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“…The technical specifications of the components of the PtH2 integrated energy system are summarized in Table 1. The maximum allowed hydrogen content in the blend (𝛿 𝑚𝑎𝑥 ) was set to 10% by volume, being this limit generally agreed in the scientific literature [6].…”

Section: Pth2 Integrated Energy System Descriptionmentioning

confidence: 99%

Natural gas system decarbonization by green hydrogen injection: a distributed approach

Grossi

Arpino

Bertone

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The large-scale penetration of renewable sources in the European energy system is leading to management and control issues on the electricity distribution network, due to the randomness of the energy coming from these sources and to the lack of adequate storage capacities. In this regard, an interesting solution currently being considered is represented by Power-to-Gas technology and chemical energy storage. In fact, renewable electricity surplus can be used to power water electrolysers producing green hydrogen to be injected in natural gas pipelines, with the dual effect of solving production-consumption mismatches in the electricity network and decarbonizing the natural gas system. In the present work, a mathematical model has been developed to study the hourly operation of an integrated multi-gas system for green hydrogen production via photovoltaic-powered electrolysers and its injection upstream of a Regulating and Measuring Station (RMS). Different operating conditions are investigated and a scenario of increasing photovoltaic production is considered. Obtained results show that higher fractions of hydrogen in the blend can be achieved during summer operations when the lowest natural gas consumption and the highest solar production occur.

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“…The distribution and number of mixer arrangements were optimized based on the results of the study. Dell'Isola et al 25 injected hydrogen into natural gas and analyzed the effect of hydrogen injection on the flow rate, relative density, specific heat, and speed of sound of the gas. Li et al 26 investigated the physical properties of hydrogen mixed with natural gas.…”

Section: Introductionmentioning

confidence: 99%

Computational fluid dynamic analysis of hydrogen‐injected natural gas for mixing and transportation behaviors in pipeline structures

Yan

Jia

et al. 2023

Energy Science & Engineering

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The transportation of hydrogen is a weak link in the large‐scale development of the hydrogen energy industry. Injecting hydrogen into the natural gas pipeline network for transportation is an efficient way to achieve the large‐scale, long‐distance, and low‐cost transportation of hydrogen. Hydrogen can lead to hydrogen embrittlement in natural gas pipelines and cause safety incidents if hydrogen and natural gas are not mixed uniformly. Therefore, it is necessary to study the blending process and blending uniformity of hydrogen and natural gas. In this study, a three‐dimensional model of the hydrogen‐injected natural gas pipeline was constructed. The effects of hydrogen injection inlet and turbulator configuration on the mixing process of hydrogen and natural gas were investigated using a computational fluid dynamics approach. The results show that increasing the number of hydrogen injection inlets shortens the distance L98% of uniform mixing of hydrogen and natural gas. Increasing the radial distance r from the initial hydrogen mixing positions to the center of the pipeline will shorten the distance for uniform gas mixing in the pipeline. The addition of turbulator configurations in the pipeline significantly reduces the distance to uniform gas mixing. Changing the distance Lturb from the turbulator to the initial mixing position further shortens the distance between hydrogen and natural gas mixing uniformly. The results of this study provide a reference for the structural design of the hydrogen–natural gas mixing pipeline and the gas distribution state during the mixing process.

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Impact of Hydrogen Injection on Natural Gas Measurement

Cited by 20 publications

References 13 publications

Decarbonization of Former Lignite Regions with Renewable Hydrogen: The Western Macedonia Case

Decarbonization of Former Lignite Regions with Renewable Hydrogen: The Western Macedonia Case

Natural gas system decarbonization by green hydrogen injection: a distributed approach

Computational fluid dynamic analysis of hydrogen‐injected natural gas for mixing and transportation behaviors in pipeline structures

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