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Study Investigating the Safety of Hydrogen as Fuel on Ships
Author(s)
Marius Leisner
Linda Sigrid Hammer
Ingeranne Strøm Nakstad
Hans Jørgen Johnsrud
This report is developed as a part of the project “EMSA study investigating the safety of hydrogen as fuel on ships”. The overall objective of the project is to carry out a structured set of safety assessments and reliability analyses,delivering a Guidance document addressing ships using hydrogen as fuel. The purpose is to assist the industry and the regulators towards a safe and harmonised deployment of this relevant technology that could demonstrate an important step towards decarbonisation of the sector.
EPA Risk Management Program - Final Rule
Author(s)
ENVIRONMENTAL PROTECTION AGENCY
The purpose of this action is to make changes to the Risk Management Program (RMP) rule in order to improve safety at facilities that use and distribute hazardous chemicals. Because major and other serious and concerning RMP accidents continue to occur, this final rule aims to better identify and further regulate risky facilities to prevent accidental releases before they can occur.
On March 11, 2024, the U.S. Environmental Protection Agency (EPA) published the much-anticipated Safer Communities by Chemical Accident Prevention Rule (SCCAP) Final Rule, an update to EPA’s Risk Management Program (RMP) 40 CFR Part 68, under the Clean Air Act Amendments of 1990 (CAA). This is the first substantial change to the rule since its inception in 1996.
Intro to Chart Cryogenics
Author(s)
Chart Industries
How cryogenic containers workCondensation/StratificationEvaporationLiquid GrowthCryogenic TanksInsulation Methods
The testing provided data to allow the ability of Computational Fluid Dynamics (CFD) modelling to predict accumulation of natural gas from transient releases and temporal and spatial variations in explosion loading. Strain and pressure data was also gained on the structural response to allow assessment of structural modelling. 
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Several codes require excess flow valves in pipelines so that in the case of line rupture, the flow will be shut off.   In theory, this is a good idea, however, in practicality, it has many limitations.  The sizing and practical uses make the sizing difficult if sometimes impossible, depending on the design parameters.   
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The information in this document provides answers to the questions that were raised during the Center for Hydrogen Safety April 27, 2023 webinar. The Q&As are sorted by topic with the question number for reference. The Q&As are sorted by topic with the question number for reference. Redundant questions were deleted from the original list.
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The three-year HyTunnel CS project culminated in the report titled Deliverable D6.9, “Recommendations for inherently safer use of hydrogen vehicles in underground traffic systems.” The HyTunnel CS project aimed to perform pre-normative research for the safety of hydrogen-fueled vehicles traveling through tunnels or entering confined spaces. The main objective was to compare the relative risk of hydrogen vehicles entering underground traffic systems to existing fossil fuel-powered vehicles [1].
Disclaimer- The documents and references herein are for information purposes only and should not be construed as endorsement by the Hydrogen Safety Panel.
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