Some common gas-fired boilers and gas fuels are mainly these types. The small-scale boilers are simple to introduce to you, and compare the cost-effectiveness of each fuel.
1. LPG (Liquefied Petroleum Gas): LPG
Main ingredients: propane, other ingredients: butane, ethane, etc.
The calorific value is approximately 46,000 KJ/kg.
2. LNG (Liquefied natural Gas): natural gas
Main components: methane, a small amount of ethane and other gases
The calorific value is approximately 8600 Kcal/Nm3.
Gas hungry components are more complex, with a calorific value of about 3000-4000 Kcal/Nm3.
4. Air mixing (LPG-AIR)
A mixture of liquefied gas and air with a calorific value of approximately 9000-10000 Kcal/Nm3.
Comparison of calorific value: liquefied petroleum gas>air-mixed gas>natural gas>gas
Economic level: gas > natural gas > air admixture > liquefied petroleum gas.