HYDROGEN SAFETY
Hydrogen safety covers the safe production, handling and use of hydrogen - particularly hydrogen gas fuel and liquid hydrogen. The main concern in working with hydrogen is flammability.
Hydrogen possesses the NFPA 704's highest rating of 4 on the flammability scale because it is flammable when mixed even in small amounts with ordinary air; ignition can occur at a volumetric ratio of hydrogen to air as low as 4% due to the oxygen in the air and the simplicity and chemical properties of the reaction. However, hydrogen has no rating for innate hazard for reactivity or toxicity.
The storage and use of hydrogen pose unique challenges due to its ease of leaking as a gaseous fuel, low-energy ignition, wide range of combustible fuel-air mixtures, buoyancy, and its ability to embrittle metals that must be accounted for to ensure safe operation. Liquid hydrogen poses additional challenges due to its increased density and the extremely low temperatures needed to keep it in liquid form.
In this course, we have covered the following aspects of hydrogen,
Introduction to Hydrogen Safety
Application of hydrogen as a Fluid
Concentrations, Mixtures & Explosions
Storage and Handling Procedures
Hazards & Risk Analysis of hydrogen
Plotting the impacts of hydrogen and Suitable PPEs