Daily Current Affairs for UPSC Civil Services Exam – 21 April 2021

In Today’s News:

  1. Hydrogen based technologies

1. Hydrogen based technologies

News Summary

Experts from India and Japan discussed possibilities of collaboration for the promotion of hydrogen-based technologies as well as related innovations, trends, concerns, and solutions at a webinar on De-carbonisation: Exploring the Hydrogen Prospects and Innovative Technologies.

(Note: In the above context, a newer concept of Hydrogen Fuel cell is being provided here from the exam point of view by us.)

Prelims GS – Science & Technology

Hydrogen Fuel cell:
  • A fuel cell combines hydrogen and oxygen to produce electricity, heat, and water.
  • Fuel cells are often compared to batteries.
  • Both convert the energy produced by a chemical reaction into usable electric power.
  • However, the fuel cell will produce electricity as long as fuel (hydrogen) is supplied, never losing its charge.
  • Fuel cells are a promising technology for use as a source of heat and electricity for buildings and as an electrical power source for electric motors propelling vehicles. Fuel cells operate best on pure hydrogen.

Click here to know more about Hydrogen fuel cells on the Courtesy website.

Mini Insights

Mains GS3 – Science & Technology

Significance of Hydrogen-based technologies:
  • Hydrogen enables high efficiency and zero or near-zero-emissions operations.
  • Green hydrogen will be good for industrial processes, the production of chemicals, iron and steel, food and semiconductors, and refineries.
  • Hydrogen could be a good alternative because of its capability of producing lower emissions and less pollution.
  • The advantage of the hydrogen Energy system is that hydrogen gas is generated using a renewable energy source, instead of fossil fuels, it is stored in a safe way, overcomes challenges such as the intermittency of sunshine, and a clean, alternative power source.

Click here to view the official PIB Press Release on the India-Japan discussion on hydrogen-based technologies.




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