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f Hy4Heat Hydrogen Colourant Report


As part of Work Package 2 (WP2) of the Hy4Heat programme, DNV produced a substantive report regarding colourant within a potential hydrogen gas network within the UK. Considering the advances within the hydrogen industry over the past year, this covering document provides an update to the results as presented by DNV, based on current industry progress and research.

  • Advancements have been made in the understanding of key topics:
  • Flame visibility and supervision
  • Health and safety of colourant additives
  • Production of Nitrogen Oxides (NOx)
  • Likelihood of ignition from domestic electrical installations
  • Nature of gas escapes

The Hydrogen Colourant report was a study to determine if there is a requirement for adding a colourant to hydrogen to ensure that safe burning and user acceptance is achieved and to investigate the optimum solution if a colourant is required. The recommendation is that adding colourant to a future hydrogen gas network for use within buildings is not necessary if engineering measures are put in place to enable safe appliance operation."

Related subjects: Safety
Countries: United Kingdom

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