Source: PIB
Context: Union Minister along with Bhutan Prime Minister Tshering Tobgay took a ride on a green hydrogen-run bus in the national capital New Delhi, in a message to sustainable mobility and a green future.
About Green Hydrogen Fuel Cell:
- Green Hydrogen Fuel Cells are a highly efficient and environmentally friendly way to generate electricity.
- They harness the energy stored in green hydrogen, which is hydrogen produced using renewable energy sources like wind, solar, or hydropower, ensuring zero greenhouse gas emissions during production.
Key components:
- Green hydrogen:
- Green hydrogen is generated through electrolysis, a process where water is split into hydrogen (H2) and oxygen (O2) using renewable energy.
- Fuel cell:
- A fuel cell is an electrochemical device that converts the chemical energy in hydrogen directly into electrical energy.
- It consists of two main parts: the anode (positive side) and the cathode (negative side), with an electrolyte facilitating the movement of ions between the electrodes.
How the fuel cell works:
- Hydrogen supply:
- Green hydrogen is supplied to the anode side of the fuel cell, where hydrogen molecules are split into protons (positively charged hydrogen ions) and electrons.
- Electric current generation:
- The electrons flow through an external circuit from the anode to the cathode, creating an electric current that can be used to power various applications, from vehicles to stationary power plants.
- Water as a byproduct:
- At the cathode, oxygen from the air reacts with the protons and electrons to form water vapor (H2O), the only byproduct of the reaction, along with heat.
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