Researchers from the Dehradun- based Indian Institute of Petroleum have developed a new technology for multi-fuel burner for furnaces capable of saving 15 to 25 per cent energy over the existing burners. This is based on a new concept called low air pressure (LAP) film burner and can use more than two fuels simultaneously, that is, either fuel oil or natural gas or both. The earlier designs of LAP burners were dependent on the quantity of combustion air, and any reduction in air could affect its performance adversely. Multi-fuel burners would be of immense use to industries located near gas fields because, at times when natural gas is not sufficiently available, liquid fuel can supplement the storage of gas. Further, these types of burners do not need cleaning of fuel oil nozzle even after continuous operation for weeks.
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