The acoustic Gas Temperature Measurement System AGAM from Bonnenberg & Drescher (B&D) is the leading technology in the determination and diagnosis of the 2D gas temperature distribution in combustions and furnaces world-wide proven in more than 300 installations.

In recent years further enhancement has enabled this technology now to be installed in multiple locations in a single furnace measuring high gas temperatures by utilising the already installed software system with only minor modifications added to a boiler plant.

B&D now looks on 50 years history of engineering development and application of measurement technology and process automation. Now there are more added features and benefits to a clients’ installation by using and optimising and incorporating real-time minute tube leak detection achievability when these systems are installed with no added modifications or equipment introduced.

• The physical principle is simple: the speed of sound in a gas depends on the gas temperature.
• Measures the flight time between symmetrical sender and receiver units. Knowing the exactly determined positions of sender and receiver, the speed of sound can be calculated.
• This is then transformed to a path temperature. The measurement is free of drift and without radiation influence.
• Multi path configurations allow a dense mesh of path temperatures & calculates the 2D temperature profile by tomography algorithm. More paths give a more detailed local resolution.
• Compressed air cleans the system automatically & has low wear and needs low maintenance since none of the components are within the flue gas channel.