Why is it difficult to use hydrogen as a fuel?

Answer : (i) When hydrogen gas is lighted, it burns with an explosion which is very unsafe. (iii) It is very difficult to store and transport hydrogen gas as it is explosively inflammable. Hence it is difficult to use hydrogen as a source of energy, though it has high calorific value.

Can ships be powered by hydrogen?

Powering vessels with hydrogen can be done via combustion engines, blending hydrogen in with other fuels, or storing it in a liquid organic solution or as ammonia. The most common and greenest way of generating power from H2 is using hydrogen fuel cells.

What are the major advantages and disadvantages of using hydrogen as a fuel and to produce electricity and to power motor vehicles?

Hydrogen Fuel Cell Advantages and Disadvantages in Material…

• Hydrogen Fuel Cell Technology.
• Advantage: High Energy Density Improves Productivity.
• Disadvantage: The Use of Fossil Fuels in Hydrogen Production.
• Disadvantage: Hydrogen Storage and Transportation.
• Disadvantage: Fuel Cell Efficiency.

What are the four challenges in using hydrogen as a major fuel?

The key challenges include:

• Weight and Volume. The weight and volume of hydrogen storage systems are presently too high, resulting in inadequate vehicle range compared to conventional petroleum fueled vehicles.
• Efficiency.
• Durability.
• Refueling Time.
• Cost.
• Codes and Standards.
• Life-Cycle and Efficiency Analyses.

How do hydrogen powered ships work?

The ship uses up the H2 in operation when there is no wind. The H2 recharges the batteries and provides heat, then the batteries run all systems. With enough wind, the solar panels can instead recharge the batteries and make new H2 using desalinated water and electrolysis.

How is hydrogen transported in ships?

Today, hydrogen is transported from the point of production to the point of use via pipeline and over the road in cryogenic liquid tanker trucks or gaseous tube trailers. Pipelines are deployed in regions with substantial demand (hundreds of tons per day) that is expected to remain stable for decades.

What are disadvantages of hydrogen?

This would then be increased to 100\% hydrogen over time. Hydrogen is highly efficient (1kg of hydrogen can produce as much energy as 2.8kg of natural gas) There would be no carbon emissions from hydrogen boilers (only produce water vapour and heat) Hydrogen could be used in existing gas grid infrastructure.

What are some disadvantages of hydrogen?

Some of the disadvantages of hydrogen energy include:

• Hydrogen Energy is Expensive.
• Storage Complications.
• It’s Not the Safest Source of Energy.
• Tricky to Move Around.
• It is Dependent on Fossil fuels.
• Hydrogen Energy Cannot Sustain the Population.

What is the main difficulty in storing hydrogen in liquid form?

Storage of hydrogen as a liquid requires cryogenic temperatures because the boiling point of hydrogen at one atmosphere pressure is −252.8°C. Hydrogen can also be stored on the surfaces of solids (by adsorption) or within solids (by absorption).

Which of the following is a disadvantage of hydrogen fuel?

Hydrogen is a much lighter gas than gasoline which makes it difficult to store and transport. To be able to store it we need to compress it into a liquid and store it at a low temperature. The high amounts of pressure needed to store hydrogen makes it a difficult fuel to transport in large quantities.