High heat flux and high velocity burner

Preliminary calculations indicated that the burner should meet the following conditions:
Heat output of the burner : I million BTU per hour.
The combustion must be complete.
The hot gases coming out of the burner must be given a tangential velocity so that the walls of the sphere gets scrubbed by the hot gases.
The flame must be stable at all conditions of air flow.
The burner must be easy to start in case of flame outage during stress relieving.
In case the air supply fails accidentally, the gas flow must stop immediately.

With such stringent conditions, we realised that we do not have the expertise in designing a stable high velocity high heat flux burner. We approached Indian Institute of Science, Bangalore and National Aerospace Laboratories, Bangalore for designing the burner. A development contract was placed with the understanding that the manufacturing of burner is our responsibility. Both the laboratories started the work simultaneously and with in one year we had two burners of different designs each meeting laid down specifications.

Meanwhile we developed the burner management system The burner management system consisted of an electronic system with infrared sensors to monitor the flame and activate a hooter in case of flame outage and shuts off LPG flow immediately. It also supplied high frequency power to the spark plug to ignite the flame. We did extensive trials with burner simulating all conditions of stress relieving and ensured that the burner can operate with out any problem. Then we were ready for site stress relieving.