A dual-fuel burner is a type of burner capable of using two different fuels to generate heat. These burners are typically designed for industrial applications that require fuel flexibility, allowing the use of natural gas and liquid fuels (such as diesel, mazut, or fuel oil) either simultaneously or separately.

Operation of Dual-Fuel Burners:
Dual-fuel burners usually have a complex system that can automatically select the desired fuel. This selection is typically based on fuel availability, cost, and operational conditions. Automatic control systems can switch to the secondary fuel (e.g., diesel) if the primary fuel (e.g., gas) is unavailable or its pressure drops.

Features of Dual-Fuel Burners:

• Fuel Flexibility:
  Can operate on natural gas, LPG, or liquid fuels (diesel, mazut, etc.).
  Fuel switching can be automatic or manual depending on requirements.

• Fuel Optimization:
  Users can switch between fuels in response to price fluctuations or shortages, helping save costs and improve efficiency.

• Automatic Control:
  Most systems have automated control that continuously monitors fuel status and burner performance, automatically switching fuels based on conditions.

• Suitable for Various Industries:
  Used in chemical, petrochemical, power plants, food industries, and heating systems.

• Reduced Pollution:
  Using natural gas as the primary fuel reduces emissions and environmental pollution. Liquid fuels are used as a cost-effective and available option in emergencies.

Advantages of Dual-Fuel Burners:

• Energy Supply Reliability:
  If one fuel source fails or is unavailable, the second fuel automatically takes over, ensuring uninterrupted operation.

• Cost Efficiency:
  Liquid fuels can sometimes be cheaper than natural gas, allowing the burner to use the less expensive option when needed.

• High Flexibility:
  Can operate in various environments and fuel conditions.

Applications of Dual-Fuel Burners:

• Power Plants:
  Ensure continuous energy supply, especially when one fuel source (gas or liquid) is limited.

• Petrochemical Industries:
  Provide high-temperature heat required for chemical and petroleum processes.

• Industrial Heating:
  Used in factories and industrial environments to supply heat.

• Power Generation:
  Enhance efficiency and energy supply in power plants using multiple fuels.

How It Works:
Dual-fuel burners are equipped with automated control systems that continuously monitor fuel conditions and burner operation. The system automatically selects the appropriate fuel. Typically, if natural gas is unavailable or at low pressure, the burner switches to a liquid fuel such as diesel or mazut.

Fuels Used in Dual-Fuel Burners:

• Natural Gas: Common in urban and industrial areas.

• LPG: Used in regions without natural gas access.

• Liquid Fuels (Diesel, Mazut): Used as an alternative during gas shortages or price fluctuations.

Conclusion:
Dual-fuel burners increase fuel flexibility, allowing users to utilize energy efficiently and economically. Their ability to operate on multiple fuels makes them highly beneficial in various industries, especially under unstable conditions and fluctuating fuel prices.