An ideal Fuel is one which possesses the following characteristics:
- It should be readily available.
- It should be inexpensive.
- It should burn easily in air at a judicious rate.
- It should liberate large amount of heat.
- It should leave behind any undesirable residues.
- It should be easy enough to store, transport, and handle.
- It should have high calorific value.
- It should have ignition temperature above the room temperature.
- It should produce less hazardous products on burning.
But in reality there is no such fuel that can be regarded as an ideal fuel. We generally opt for the fuel that is capable of meeting maximum of our requirements.