Gas-fired boilers use gaseous flammable gases (including liquefied combustible gases) as fuel. These gaseous fuels have relatively higher calorific value and less pollutant emissions, and are gradually becoming popular among corporate users.
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-saving fuels.
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.
3. Gas
Gas components are more complex with a calorific value of about 3000-4000 Kcal/Nm³.
4. Air mixing (LPG-AIR)
The calorific value of air mixing is 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.
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