VI.4 Codes and Standards Analysis

Objectives • Task A Determine how close an ignition source must be to a hydrogen leak to cause ignition of the leak. Compare that distance to the positions of 4% hydrogen in the plume created by the leak. • Task B Determine characteristics of ignition of lean mixtures of hydrogen and air flowing in ducts. Determine the effects of the Reynolds number and any other important parameters. • Task C Determine the grounding needs of electrolyzers or fuel cells for use in residential garages. • Task D Determine hazards produced by electrical shorts in conjunction with portable fuel cells.