- Fuel cells combine hydrogen (the fuel) and oxygen (from the air) in a chemical reaction to produce electricity, with water and heat as outputs. - FCEVs are considered zero-emission vehicles at the tailpipe.
Recently, India's first green hydrogen-based advanced fuel cell electric vehicle (FCEV) was launched. It has no tailpipe emissions other than
Asked in UPSC CDS 2 2022 · Topic: Non-Conventional Energy (Hydrogen Energy: Production methods, fuel cells, and applications)
More Environment and Ecology questions
- In the context of proposals to the use of hydrogen-enriched CNG (H-CNG) as fuel for buses in public transport, consider the following statements: 1. The main advantage of the use of H- CNG is the elimination of carbon monoxide emissions. 2. H-CNG as fuel reduces carbon dioxide and hydrocarbon emissions. 3. Hydrogen up to one-fifth by volume can be blended with CNG as fuel for buses. 4. H-CNG makes the fuel less expensive than CNG. Which of the statements given above is/are correct?
- Consider the following heavy industries: 1. Fertilizer plants 2. Oil refineries 3. Steel plants Green hydrogen is expected to play a significant role in decarbonizing how many of the above industries?
- With reference to green hydrogen, consider the following statements: 1. It can be used directly as a fuel for internal combustion. 2. It can be blended with natural gas and used as fuel for heat or power generation. 3. It can be used in the hydrogen fuel cell to run vehicles. How many of the above statements are correct?
- What for OTEC stands ?
- OTEC involves thermal power generation from
- ‘Net Metering’ is sometimes seen in the context of promoting
- Which one among the following is a non- conventional source of energy?
- Which one of the following is not a non- renewable energy source?