What are the pros and cons of hydrogen energy?

Hydrogen fuel cells Pros: No vehicle emissions other than water vapor. Fuel economy equivalent to about twice that of gasoline vehicles. Hydrogen is abundant, and can be made from renewable energy. Cons: This space-age technology is expensive.

Which is one reason why hydrogen is considered a better fuel source for cars?

Hydrogen is considered an alternative fuel under the Energy Policy Act of 1992. The interest in hydrogen as an alternative transportation fuel stems from its ability to power fuel cells in zero-emission vehicles, its potential for domestic production, and the fuel cell’s fast filling time and high efficiency.

How does hydrogen work as a fuel?

Hydrogen fuel cells produce electricity by combining hydrogen and oxygen atoms. The hydrogen reacts with oxygen across an electrochemical cell similar to that of a battery to produce electricity, water, and small amounts of heat. Many different types of fuel cells are available for a wide range of applications.

What is an advantage of using hydrogen as a fuel quizlet?

Hydrogen-rich fuel cells produce less CO₂ than hydrocarbon fuels. Hydrocarbon fuels may undergo incomplete combustion producing toxic carbon monoxide. Hydrogen fuel cell vehicles are more efficient (40-60\% efficient) as hydrocarbon fuels (20\% efficient) waste chemical energy though heat loss.

Are hydrogen fuel cells good?

Hydrogen fuel cells are cleaner and more efficient than traditional combustion-based engines and power plants. Hydrogen and fuel cells can also be used in mobile applications to power vehicles and mobile power packs. The benefits of fuel cells are: Reduced greenhouse gas emissions.

What is the fuel in a hydrogen oxygen fuel cell?

Hydrogen acts as the basic fuel in a hydrogen fuel cell, but the cell also needs oxygen to work. One of the largest advantages of these fuel cells is that they generate electricity with very little pollution, as the hydrogen and oxygen used to generate the electricity combines to produce water as a by-product.

What are hydrogen fuel cells made of?

The basic construction of a hydrogen fuel cell consists of two electrodes, an electrolyte, a fuel (hydrogen) and a power supply. An electrolyte that separates the two electrodes is an ion conducting material which facilitates the free passage of ions.

Which of the following is a disadvantage to using hydrogen as fuel?

1) Although Hydrogen cells are being used to power hybrid cars, it’s still not a feasible source of fuel for everyone. It is expensive. 2) The transport and storage of Hydrogen, even in small amounts is difficult. 3) As of the moment the present infrastructure supports gasoline, replacing it requires refitting.

Which of the following is a disadvantage of hydrogen fuel?

There are disadvantages to using hydrogen-oxygen fuel cells in cars. These include: hydrogen is in the gas state at room temperature and pressure, so it is difficult to store in the car. fuel cells and electric motors are less durable than petrol engines and diesel engines, so they are not so long-lasting.

What happens to hydrogen in a fuel cell?

A fuel, such as hydrogen, is fed to the anode, and air is fed to the cathode. In a hydrogen fuel cell, a catalyst at the anode separates hydrogen molecules into protons and electrons, which take different paths to the cathode. The electrons go through an external circuit, creating a flow of electricity.

What is the efficiency of a hydrogen fuel cell?

When the fuel cell is powered by pure hydrogen, it has the ability to be effective at up to 80 per cent. That is, 80 per cent of the hydrogen energy content is converted into electrical energy. So we have an efficiency of 80 percent in producing electricity and an efficiency of 80 percent converting it to mechanical power.

What type of fuel is hydrogen?

Hydrogen Fuel Basics. Hydrogen is a clean fuel that, when consumed in a fuel cell, produces only water. Hydrogen can be produced from a variety of domestic resources, such as natural gas, nuclear power, biomass, and renewable power like solar and wind.

Is hydrogen a clean fuel?

Hydrogen is a clean fuel that, when consumed in a fuel cell, produces only water. Hydrogen can be produced from a variety of domestic resources, such as natural gas, nuclear power, biomass, and renewable power like solar and wind.

What is hydhydrogen fuel and how does it work?

Hydrogen fuel is a zero-emission fuel when it is burned oxygen. The fuel contains nitrogen oxides as pollutants since hydrogen uses nitrogen as the impurity (here we are talking about the molecule of hydrogen and not the atom). The pollution can be brought down if a little water is added to the container to reduce the temperature.