Secondary fuels are fuels that are derived from some primary fuel or fuels through chemical or physical processes. These are fuels that are not found as a natural resource. This means that secondary fuels are often an intermediate form of energy between the primary energy and the energy services.

Energy can be stored in a variety of ways, including:

• Pumped hydroelectric. Electricity is used to pump water up to a reservoir.
• Compressed air. Electricity is used to compress air at up to 1,000 pounds per square inch and store it, often in underground caverns.
• Flywheels.
• Batteries.
• Thermal energy storage.

It is generated as a secondary form from primary fuels, like natural gas….Activity: Energy Resources: Primary vs. Secondary.

Chemical

Solid Secondary Fuel (SSF) is a fuel obtained from the dry component (plastic, paper, textile fibres, etc.) of non-hazardous waste, whether urban or special, by means of special separation treatments from other non-combustible materials such as glass, metals and inert materials.

Primary fuels are fuels that are found in nature and can be extracted, captured, cleaned, or graded without any sort of energy conversion or transformation process. Secondary fuels are derived from primary fuels through some sort of distillation process.

raw fuels. Examples are wood, coal, petroleum, natural gas, animal dung, etc. secondary type of fuels. Examples are charcoal, coke, petrol, diesel, kerosene.

These include petroleum which are primary sources and diesel, gasoline are a few secondary sources. This group includes natural gas which is a primary source and coal gas, water gas, CNG to name a few secondary sources. As C is not the answer, then clearly B is the answer. So, the correct answer is “Option B”.

Gasoline, kerosene and diesel are also fuels, but are different as they are derived from primary energy sources. These are secondary fuels as opposed to primary fuels. Secondary fuels are easier for engines to burn, so are often made from crude oil as a way of getting the most energy out as possible.

Such an intermediate form is also classified as an energy currency but also requires electricity that is not a fuel. So the example of secondary fuel is water gas.

Secondary energy is energy produced by converting so-called primary energy, or energy available in its natural state in the environment. Electricity, refined automotive fuel, hydrogen, compressed air and microwave radiation are all types of secondary energy.

Russia

United States