Natural Draft and Forced Draft burners differ in the way they create airflow. They are used in a variety of industrial applications
that require the use of heat to achieve and utilize controlled combustion for a specific heating process. Natural Draft and
Forced Draft burners are process heating equipment used in the production, transportation, and refining of many everyday
products. Both have unique capabilities in controlling and generating the required heat and maintaining the exact temperature
for each specific application.
When looking at natural draft and forced draft burners, the word "draft" describes the difference between atmospheric pressure
and the existing pressure in the gas passage or combustion chamber, which causes the gas and air to move. Fire tubes and
chimneys are usually built in a cylindrical shape to provide the best structure for air flow. Both natural draft and forced draft
burners are used to mix fuel and air to maintain a safe, stable, and efficient flame. They operate as part of a complete system that
contains the burner, secondary air control, pilot, orifice, fuel actuator, and burner management system controller. The substance
being heated can include fluids, gases, or recycled materials. Natural draft burners use the difference in density between hot and
cool air or flue gases to create pressure to move fluid through the combustion chamber. Flue gases are a mixture of gases produced
by burning fuel or other materials. Forced draft burners use electricity to create mechanically assisted air pressure within the system
to move air or flue gases. This allows for a greater level of consistency and control. Both types of burners are available in a variety of
sizes and have a variety of industrial uses.
Industries that use natural draft and forced draft burners include:
Oil and Gas
Power Generation
Mining
Biotech
Petrochemical and Refining
Renewable Energy
Landfills
Agriculture
Municipal
Food and Beverage
Construction and Infrastructure
Pulp and Paper