Characteristics of Fuels
Characteristics of Fuels
Characteristics of Fuels:
1. Calorific value: When one kilogram of fuel is completely burnt in the presence of pure oxygen is called calorific value of fuel. It is expressed in unit’s kilojoule per gram (kJ/g). Higher the CV of a fuel the more heat it produces when burned.
2. Efficiency: When a fuel is burnt, some of the energy produced is given off as waste heat which cannot be used for cooking or other purposes. This is the effects of a fuel. It is expressed as percentage.
3. Ignition Temperature: The minimum temperature at which a fuel catches fire is termed as its ignition temperature. Those substances having low ignition temperature catches fire easily.
Some important characteristics of an ideal/good fuel: No fuel is considered as ideal. Yet CNG is the best fuel among all others.
Some fuels based on these characteristics:
1. Hydrogen as fuel: it is the best fuel and has highest calorific value. It is only used as a fuel because it is highly inflammable.
2. Methane and LPG as fuels: Both have high calorific values they burn with a smokeless fire and do not cause pollution.
3. Petrol and diesel as fuels: Both are used in auto mobiles their main disadvantage is their limited availability and other is that their combustion releases harmful gases.
Ignition temperature is ____________ | |||
| Right Option : A | |||
| View Explanation | |||
A brief information about a few substances is given as:
X,Y and Z are respectively
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| Right Option : C | |||
| View Explanation | |||
What should be the important characteristics of fuel ? | |||
| Right Option : D | |||
| View Explanation | |||
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