Flame lift-off in oil fired pressure jet burners is an unwanted condition in which the flame

Flame

A flame is the visible , gaseous part of a fire. It is caused by a highly exothermic reaction taking place in a thin zone...

 and burner

Burner

Burner may refer to:* Gas burner or oil burner, a mechanical device that burns a gas or liquid fuel into a flame in a controlled manner* Hot-air balloon device, a device to inflate a hot air balloon* Burner * Burner, West Virginia...

 become separated. This condition is most commonly created by excessive combustion air and often results in the loss of flame as the photo-electric cell fails to register the light of the flame, this in turn results in a safety lockout of the control box.

Other outcomes

Other outcomes may be experienced: –

1. There may be delayed ignition
   Combustion
   Combustion or burning is the sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat and conversion of chemical species. The release of heat can result in the production of light in the form of either glowing or a flame...
   
    as the oil spray is too far forward for the electrode
   Electrode
   An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit...
   
   s to ignite, only when the oil spray has filled the combustion chamber
   Combustion chamber
   A combustion chamber is the part of an engine in which fuel is burned.-Internal combustion engine:The hot gases produced by the combustion occupy a far greater volume than the original fuel, thus creating an increase in pressure within the limited volume of the chamber...
   
    will the mixture ignite. In this condition it is likely that the excessive volume of unburnt oil will ignite with explosive ignition.
2. The oil mixture will fail to ignite resulting in safety lockout of the control box.
3. The oil mixture will ignite but may burn very inefficiently due to excessive air chilling of the oil particles to the point where complete combustion
   Combustion
   Combustion or burning is the sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat and conversion of chemical species. The release of heat can result in the production of light in the form of either glowing or a flame...
   
   of the oil is not possible.

External links

• Oil Heating Network

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