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    • SUSHy Project
    • About
      • Significance and Aim
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      • Outcomes
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  • SUSHy Project
  • About
    • Significance and Aim
    • Project Outline
    • Impact
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SUSHy Project Workflow

The workflow of the project activities is presented in the figure above.

Work Packages

WP1: What are the risks

> To understand risks around HREP hydrogen stations

With respect to hybrid renewable-energy-resources (HREP) hydrogen stations, WP1 is developing a framework to identify typical and atypical accident scenarios related to hydrogen systems that may lead to uncontrolled releases of hydrogen, especially considering those that directly endanger nearby communities and the neighbouring environment.

Tasks (Ts) of WP1 include:

  • T1.1 Identification of the structures of the hydrogen systems considering the spatial allocation of key components for generating or storing hydrogen, including the geometry of those components and main process parameters, such as the gas pressure;
  • T1.2 Development of scenarios for accident cases involving uncontrolled hydrogen releases, and estimation of the potential domino effects;
  • T1.3 Analysis of the risk in the operation of hydrogen systems; and
  • T1.4 Determination of the size of the potentially exposed areas in the proximity of key components in the hydrogen systems.

WP2: Operational and organisational safety

> To prevent accidents and reduce risk through operational means

Identification of key parameters and safety requirements of HREP hydrogen stations is a crucial step towards proposing appropriate new procedures for preventing accidents and ensuring process safety. Bringing skilled people together, enabling safe operational control and promoting organisation commitment towards safety are critical pillars for minimising accident risk. Lessons from accidents and identification of best safety practices, regulations and rules in different countries can help to identify key performance indicators in a standardised way, allowing for comparison and improvement. Thus, safety culture models from other high-risk industries are considered in this WP2.

Tasks of WP2 include:

  • T2.1 Analysis of incident/accident databases and report of main recommendations and lessons from past incidents/accidents;
  • T2.2 Identification of key safety performance indicators based on lessons from past incidents/accidents and legislations in partner/other leading countries to provide guidance on safety assurance procedures to avoid/mitigate the accidents identified in WP1; and
  • T2.3 Identification of main organisational factors influencing safety of hydrogen fuelling stations and guidance on establishing safety culture.

WP3: Emergency safety

> To mitigate risks through technical means

In the case of HREP hydrogen stations, designed protection and emergency response systems typically fall within one of the following categories. Detectors and alarms for slight hydrogen leaks, automatic shutdown systems to close the hydrogen valve quickly, emergency exhaust systems, inert gas nitrogen introduction systems, cooling systems, fire-extinguishing systems (e.g., water spraying) and anti-explosion walls. Based on the scenarios identified in WP1, a probabilistic digital twin at the system level is being developed in WP3 to analyse the effectiveness and performance of abovementioned systems under the uncertainties involved in various scenarios.

Tasks of WP3 include:

  • T3.1 Design of a novel probabilistic digital twin model for assessing emergency systems for HREP hydrogen fuelling stations;
  • T3.2 Development and verification of new algorithms that consider parameters and uncertainties related to production and storage with controllable protection measures and risks at a HREP hydrogen fuelling station; and
  • T3.3 Optimisation of specification, placement, and operating strategies for protection measures considering cost and safety (against domino effects).

WP4: Community perception and preparedness

> To reduce societal risk and address community concerns

Public acceptance of hydrogen stations is analysed considering knowledge of hydrogen technology, risk perception, benefits, environmental consciousness, travel behaviour, and social interaction. In WP4, an online questionnaire survey is carried out with residents who live near and also far from hydrogen stations. Additionally, effects of differences in available accident risk information are investigated for effective risk communication procedures.

Tasks of WP4 include:

  • T4.1 Survey on risk perception and technology acceptance targeted at residents nearby hydrogen fuelling stations;
  • T4.2 Risk perception analysis for residents nearby hydrogen stations based on the survey data;
  • T4.3 Analysis of technology acceptance levels based on the survey data for residents nearby hydrogen stations under uncertainty and risk situations; and
  • T4.4 Comparison of public concerns and risk communication issues in Europe and Japan.

WP5: Economic viability

> To minimise financial risks

Hydrogen should be produced commercially under competitive conditions, and a potential HREP station should be evaluated against relevant codes and standards. The problem arising from the variability of renewable energy sources can be solved by combining two or more sources with batteries. In WP5, various parameters of HREP hydrogen stations are examined using artificial intelligence techniques, while the whole system can be evaluated economically considering different probabilistic scenarios for the hydrogen load demand, as well as issues of unreliability stemming from the renewable energies.

Tasks of WP5 include:

  • T5.1 Evaluation of the renewable power system for hydrogen stations for both connected-to-the-grid and standalone conditions;
  • T5.2 Estimation of hydrogen production cost covering all identified considerations, such as safety risk, renewable source type, and so forth;
  • T5.3 Development of sensitivity analysis methods for operational parameters, such as power purchase price (for off-grid mode), undesired stoppage and maintenances; and
  • T5.4 Development of an optimisation algorithm for the economic viability of HREP hydrogen stations.

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Significance and Aim

Significance and Aim

Significance and Aim

Find out more about SUSHy Project's scientific significance, innovation and objectives!

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Impact

Significance and Aim

Significance and Aim

Find out more about SUSHy Project's expected impact and the its contribution to sustainability!

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Outcomes

Significance and Aim

Project Partners

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Project Partners

Significance and Aim

Project Partners

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SUSHy Project

SUSHy Project was funded through the 8th Joint Call (2021) of the European Interest Group (EIG) Concert-Japan platform.

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