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Indian Railways Trains to Run on Hydrogen Fuel

Hydrogen Fuel:

Under ‘Mission Net Zero Carbon Emission Railway’ by 2030, Indian Railways are set to run trains on hydrogen fuel-based technology. For this, it is considering retrofitting of existing trains.

  • Hydrogen is the lightest and first element on the periodic table. Since the weight of hydrogen is less than air, it rises in the atmosphere and is therefore rarely found in its pure form, H2.
  • At standard temperature and pressure, hydrogen is a nontoxic, nonmetallic, odorless, tasteless, colorless, and highly combustible diatomic gas.
  • Hydrogen fuel is a zero-emission fuel burned with oxygen. It can be used in fuel cells or internal combustion engines. It is also used as a fuel for spacecraft propulsion.
  • Hydrogen is the most abundant element in the universe. The sun and other stars are composed largely of hydrogen.
  • Astronomers estimate that 90% of the atoms in the universe are hydrogen atoms. Hydrogen is a component of more compounds than any other element.
  • Water is the most abundant compound of hydrogen found on earth.
  • Molecular hydrogen is not available on Earth in convenient natural reservoirs. Most hydrogen on Earth is bonded to oxygen in water and to carbon in live or dead and/or fossilized biomass.
  • It can be created by splitting water into hydrogen and oxygen.
  • Hydrogen can be stored physically as either a gas or a liquid.
  • Storage of hydrogen as a gas typically requires high-pressure tanks.
  • Storage of hydrogen as a liquid requires cryogenic temperatures because the boiling point of hydrogen at one atmosphere pressure is −252.8°C.
  • Hydrogen can also be stored on the surfaces of solids (by adsorption) or within solids (by absorption).
  • Recently, the Finance Minister in the Union budget for 2020-21 formally announced the National Hydrogen Mission which aims for generation of hydrogen from green power resources.
  • The Ministry of New and Renewable Energy (MNRE) has also disclosed that the draft regulations for NHM will be finalised by the end of this month and will thereafter proceed for approval of the Union Cabinet.

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