A burner is a component that mixes a specific ratio of fuel and air (based on capacity) and then ignites the mixture to produce heat from the fuel. The energy produced by the burner is transferred by radiation and convection to the fluid (mostly water) used in the heating system via the boiler.
Burners produce the source heat in boilers, heaters, and even tankless water heaters and act as the core of each heating system. They spray the fuel (gas, heavy oil, diesel fuel) and mix it with the air, pass it through a spreading component, and then ignite it via a spark in the combustion chamber to produce the heat required by a boiler or fur...
A burner is a component that mixes a specific ratio of fuel and air (based on capacity) and then ignites the mixture to produce heat from the fuel. The energy produced by the burner is transferred by radiation and convection to the fluid (mostly water) used in the heating system via the boiler.
Burners produce the source heat in boilers, heaters, and even tankless water heaters and act as the core of each heating system. They spray the fuel (gas, heavy oil, diesel fuel) and mix it with the air, pass it through a spreading component, and then ignite it via a spark in the combustion chamber to produce the heat required by a boiler or furnace. Burners and boilers include a number of controllers such as relays, photocells, ion, and thermostats, which are responsible for controlling the amount and timing of each process.
Considering the imperfect combustion efficiency of burners and some other sources of heat loss, the burner capacity is usually selected 20% above that of the respective boiler.
To select the burner, determine the fuel type and the respective heating value, the diameter of the flame trap tube for placement in the boiler, and the possibility of installing the burner in front of the boiler. You can consult with the technicians at Damatajhiz Co. to select your optimal burner.
The liquid fuel is vaporized (atomized) completely via a diesel or mazut pump to achieve proper combustion. The powdered liquid fuel is mixed with air via a single or multiple nozzles (based on capacity). The air-fuel mix combusts with a spark generated by the spark plug. The combustion products must exit the combustion chamber after exchanging the heat.
Liquid fuels need to be atomized before combustion because mostly they have a low octane rating and are not easy to ignite when in the liquid phase.
For instance, putting a lit match in a barrel of oil kills the flame quickly. Such fuels need to be vaporized (atomized) before ignition. Atomization increases the contact between the fuel and oxygen and enhances ignition.
For example, using a nozzle it is possible to convert oil fuel with a flow rate of 1 GPH under the operating pressure 7 bar into more than 50 billion oil droplets. The droplets vary between 0.0002–0.01 inches in diameter.
A small component known as nozzle sprays fuel in pressure jet burners that use liquid fuel.
Nozzles vary regarding their flow rate and spray pattern and angles. The diesel pump pumps the fuel into the nozzle with pressure. When leaving the orifice, fuel escapes the center of the nozzle by the centrifugal force as a thin, high-velocity layer. There are three main types of nozzles by their spray pattern. The spray angle and pattern must be selected according to the combustion chamber and burner design. The standard fuel spray angles in nozzles are 30, 350, 60, 70, 80, and 90 degrees.
Read the “Selecting a nozzle for diesel burner” article for more information on the calculations and selection of liquid fuel nozzles for burners.
Perfect combustion is achieved by accurately regulating the air-fuel ratio. The more accurate this ratio, the better the combustion efficiency and the less fuel consumption. In smaller burners, a manually operated damper regulates this ratio, but in larger burners, an automated damper regulates air feed. As the temperature and humidity of the boiler vary during the year, large burners need re-configuration for their air damper in each season. Nowadays, modern burners employ a smart control system (PLC) to automatically regulate the air-fuel ratio during the day and all seasons.
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4 BTU = 1 Kcal
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Warranty : 1 year Iran Radiator warranty After-sale Services : 10 years
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Warranty : 12 months warranty of originality of goods After-sale Services : 10 years
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Warranty : 1 year Iran Radiator warranty After-sale Services : 10 years
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Warranty : 1 year Iran Radiator warranty After-sale Services : 10 years
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Warranty : 1 year Iran Radiator warranty After-sale Services : 10 years
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Warranty : 1 year Iran Radiator warranty After-sale Services : 10 years
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Warranty : 1 year Iran Radiator warranty After-sale Services : 10 years
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Warranty : 1 year Iran Radiator warranty After-sale Services : 10 years
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