Ammonia as a Shipping Fuel Quiz

What is the main environmental benefit of using ammonia as a shipping fuel?

• It is easier to store than other fuels.

• It emits no carbon when burned.

• It requires no special engines.

• It is cheaper than diesel.

Why is ammonia considered economically advantageous over methanol?

• Ammonia engines are cheaper to produce.

• Ammonia does not require carbon capture when burned.

• Ammonia is more abundant than methanol.

• Ammonia has a higher energy density.

What is a significant challenge in using ammonia as a fuel in engines?

• Ammonia is too expensive to produce.

• Ammonia is highly flammable.

• Ammonia engines are too small for large ships.

• Ammonia has a low calorific value.

What is the purpose of using a pilot fuel in ammonia engines?

• To increase the energy output.

• To help ignite the ammonia.

• To reduce the size of the engine.

• To stabilize the engine temperature.

What is a major byproduct concern when burning ammonia in engines?

• Carbon dioxide

• Sulfur oxides

• Nitrogen oxides

• Methane

How can nitrogen oxides emissions be reduced in ammonia engines?

• By using more pilot fuel.

• By reducing the amount of ammonia used.

• By increasing combustion temperatures.

• By using smaller engines.

What is a challenge of using catalytic reduction reactors in ammonia engines?

• They are less effective at lower temperatures.

• They require additional ammonia to function.

• They are too expensive to produce.

• They increase nitrogen oxides emissions.

What is a significant infrastructure change needed for ships using ammonia fuel?

• Less cargo space

• More powerful engines

• Larger fuel tanks

• Smaller fuel tanks

Why is the production of green ammonia challenging?

• It is more expensive than grey ammonia.

• It is not scalable.

• It produces more emissions than fossil fuels.

• It requires a lot of renewable energy.

What is a potential economic challenge for green ammonia production?

• Competition with local grid decarbonization.

• Limited availability of ammonia.

• High cost of renewable energy.

• Lack of demand for ammonia fuel.