Hydrogen losses in fueling station operation

Genovese, Matteo; Blekhman, David; Dray, Michael; Fragiacomo, Petronilla

doi:10.1016/j.jclepro.2019.119266

Cited by 52 publications

(10 citation statements)

References 34 publications

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“…It thus refers to the next theme that was highlighted, as the most central ones, in Figure 7 of this study that is carbon emission, which is recognized as a global issue, and, for this research, which focuses on green hydrogen, it is emphasized that, for each fuel with high carbon emission factor, if it can be replaced by hydrogen, then there will be a reduction of carbon emissions (Dong, Yang, Yu, Daiyan & Amal, 2022), which is an imperative challenge in this century (Du et al, 2022), corroborating the enlargement and the robustness of clean energy (Yan, He & Fan, 2023). In short, the demand for clean fuels is driven by hydrogen processes and technologies, and is predominant in order to be able to flow innovative aspects into a lowcarbon future, and consequently to achieve sustainable development based in particular on green hydrogen (Genovese et al, 2020;Oliveira, Beswick & Yan, 2021;Guarieiro et al, 2022;Camargo et al, 2023).…”

Section: Analysis and Discussion Of Resultsmentioning

confidence: 99%

“…It is noted that, clean hydrogen (Huang & Liu, 2020), is classified as "green" when it is produced using water electrolysis powered by low-carbon renewable electricity (Pimm, Cockerill & Gale, 2021). That said, the theme of green hydrogen emerges, which has been gaining attention and strength in the current global energy transition framework, for being a clean alternative for energy generation for electricity, industry, heating, and transport sectors (Guarieiro et al, 2022), and, in the replacement of carbon-based fuels, influencing sustainable development (Genovese, Blekhman, Dray & Fragiacomo, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Scientific Production on the Green Hydrogen Theme Published in Scientific Journals Indexed by EBSCO

Ribeiro¹,

Corrêa²

2023

RGSA

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Purpose: to investigate the behavior and tendency of the formation of social networks of the scientific production on the Green Hydrogen theme published in scientific journals indexed in EBSCO. Theoretical framework: the theme of green hydrogen has been gaining attention and strength in the current context of global energy transition, as it is a clean alternative for generating energy for electricity, industry, heating, and transport sectors, and, in replacing fuels to carbon base, influencing sustainable development. Method: bibliometric analysis techniques were used, and predominantly social network analysis (SAR) through one-mode and two-mode network analysis. Results and conclusion: evolution of the theme in academia; weak ties in co-authorship and institutional networks; relevance of China and its originating institutions in the scientific production of the subject investigated; the most central keywords were: hydrogen, green hydrogen, renewable energy, production and hydrogen production; and the most fruitful themes were: production, sustainability, energy and carbon emissions. It concludes with a macro and contemporary view of the theme of green hydrogen in the international literary academic field. Research implications: the present study contributed to a better understanding and understanding of the formation of collaboration networks of the actors involved in the process of building international scientific knowledge, and, by verifying that green hydrogen presents opportunities for economic growth and job creation, this research also contributes to creating an entrepreneurial and social research agenda. Originality/value: to investigate the international scientific production on the theme of green hydrogen, as this is an emerging theme in the global academic literature, and, therefore, to verify that the referred theme gains strength through researchers and their respective studies.

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Section: Analysis and Discussion Of Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of the Scientific Production on the Green Hydrogen Theme Published in Scientific Journals Indexed by EBSCO

Ribeiro¹,

Corrêa²

2023

RGSA

View full text Add to dashboard Cite

show abstract

“…The HRFF also features two hydrogen booster compressors (BC), a −20 • C hydrogen precooling system (PCU), and four high-pressure buffer tanks (BT) as detailed in [44] and below. As fueling commences, the initial flow to the vehicle tank(s) is provided from the medium pressure storage tanks, and later, when the pressure inside the vehicle tank approaches the pressure of the hydrogen within the main ground storage [45], the booster compressors begin their operation.…”

Section: Methodsmentioning

confidence: 99%

Experimental Comparison of Hydrogen Refueling with Directly Pressurized vs. Cascade Method

Genovese,

Blekhman,

Dray

et al. 2023

Energies

Self Cite

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This paper presents a comparative analysis of two hydrogen station configurations during the refueling process: the conventional “directly pressurized refueling process” and the innovative “cascade refueling process.” The objective of the cascade process is to refuel vehicles without the need for booster compressors. The experiments were conducted at the Hydrogen Research and Fueling Facility located at California State University, Los Angeles. In the cascade refueling process, the facility buffer tanks were utilized as high-pressure storage, enabling the refueling operation. Three different scenarios were tested: one involving the cascade refueling process and two involving compressor-driven refueling processes. On average, each refueling event delivered 1.6 kg of hydrogen. Although the cascade refueling process using the high-pressure buffer tanks did not achieve the pressure target, it resulted in a notable improvement in the nozzle outlet temperature trend, reducing it by approximately 8 °C. Moreover, the overall hydrogen chiller load for the two directly pressurized refuelings was 66 Wh/kg and 62 Wh/kg, respectively, whereas the cascading process only required 55 Wh/kg. This represents a 20% and 12% reduction in energy consumption compared to the scenarios involving booster compressors during fueling. The observed refueling range of 150–350 bar showed that the cascade process consistently required 12–20% less energy for hydrogen chilling. Additionally, the nozzle outlet temperature demonstrated an approximate 8 °C improvement within this pressure range. These findings indicate that further improvements can be expected in the high-pressure region, specifically above 350 bar. This research suggests the potential for significant improvements in the high-pressure range, emphasizing the viability of the cascade refueling process as a promising alternative to the direct compression approach.

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“…Model-based approaches to leakage diagnostics for hydrogen storage systems mainly rely on predefined physical or chemical models to describe and predict the behavior of the system. This approach usually incorporates realistic engineering principles, such as fluid dynamics and thermodynamics, to model the flow and diffusion of hydrogen in a hydrogen storage system. , When there is an anomaly or leak in the system, the predicted output of the model will deviate from the actual sensor data. By comparing these differences, leak locations can be accurately located and leak levels can be judged to ensure safe system operation.…”

Section: Leakage Diagnosismentioning

confidence: 99%

Comprehensive Review of Hydrogen Leakage in Relation to Fuel Cell Vehicles and Hydrogen Refueling Stations: Status, Challenges, and Future Prospects

Hu,

Gao,

Cheng

et al. 2024

Energy Fuels

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As fuel cell vehicles (FCVs) are increasingly put on the market and hydrogen refueling stations (HRSs) are built accordingly, fatal accidents caused by explosion due to hydrogen leakage are reported and have become a critical issue. The explosion results from complicated processes associated with the so-called hydrogen jet and diffusion when the hydrogen leaks from FCVs or HRSs, demonstrating its sophisticated characteristics and presenting significant technical challenges. Recently, particularly in the past a few years, researchers have established a variety of theoretical models to reveal the relevant mechanisms and introduced a series of monitoring/diagnostic approaches to detect and control the relevant hazards. This comprehensive review summarizes the major research outcomes and particularly the state-of-the-art progresses in relation to hydrogen leakage in FCVs and HRSs, including (1) subsonic jets, (2) underexpanded jets, (3) hydrogen diffusion behavior, (4) hazard reduction methods for confined and free spaces, (5) four types of widely used hydrogen detection technologies, and (6) the application of hydrogen leakage diagnostic methods in different systems. An insight of the review is that research on hydrogen leakage related to FCVs and HRSs should be combined with the relevant realistic characteristics. The characteristics of hydrogen jets generated in real gaps are discussed, and hazard reduction methods are proposed based on the characteristics of hydrogen diffusion in different confined and free spaces. It is suggested that, in order to integrate and evaluate multiple sensor data points and more accurately determine the leakage location and the leakage level, artificial intelligence technologies could be introduced to resolve the issues encountered currently.

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Hydrogen losses in fueling station operation

Cited by 52 publications

References 34 publications

Analysis of the Scientific Production on the Green Hydrogen Theme Published in Scientific Journals Indexed by EBSCO

Analysis of the Scientific Production on the Green Hydrogen Theme Published in Scientific Journals Indexed by EBSCO

Experimental Comparison of Hydrogen Refueling with Directly Pressurized vs. Cascade Method

Comprehensive Review of Hydrogen Leakage in Relation to Fuel Cell Vehicles and Hydrogen Refueling Stations: Status, Challenges, and Future Prospects

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