The substance with the highest calorific value is generally considered to be hydrogen, which has a calorific value of about 141.9 megajoules per kilogram (MJ/kg) when combusted. In practical terms, when comparing traditional fuels, acetylene has one of the highest calorific values at around 50 MJ/kg. However, for conventional fuels, gasoline and kerosene also have high calorific values, ranging from 44 to 47 MJ/kg.
hydrogen calorific value is 150000 kJ/kg
Calorific value is the percentage of heat generated by a unit of substance. Some substances have high calorific value , while others have low calorific value.
Carbohydrates
Hydrogen
Anthracite has the highest calorific value. and South African coal is best in the world.
Coal
The calorific value of a substance is the amount of heat released during the complete combustion of a unit quantity of that substance. It is usually expressed in units like calories or joules per gram or per mole. Knowing the calorific value of a substance is important for determining its energy content.
Dung cakes. Its has a calorific value of 7 kilojoule.
Pure fat, such as oils and butter, has the highest calorific value at 9 calories per gram. This is more than double the calories per gram of carbohydrates and proteins, which each provide 4 calories per gram.
Among common solid fuels, peat generally has the lowest calorific value, typically ranging from 3,000 to 5,000 kcal/kg. In contrast, anthracite coal boasts the highest calorific value, often exceeding 7,000 kcal/kg. Thus, peat is the least energy-dense, while anthracite is the most.
Hydrogen has the highest calorific value, which should make it good fuel
15-17 calorific value