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Th. Müller, H.l Buchta

A non-contact, model-based infrared emission measurement principle aimed for heating control

This paper deals with a non-contact, model-based, and fast emission measurement principle which that derives exhaust gas composition information directly from the flame. Due to its characteristics an improvement of the control of the burning process can be achieved. One of its main features consists in the manufacturability using microelectronic technologies, that way giving the possibility to equip even small scale, house heatings and laying the foundation for regionally operating energy management systems. The measurement device developed utilizes thermopile detectors. The inherent model comprises a nonlinear static model part and a linear dynamic one, connected in series to form a Hammerstein structure. Models derived from the physical processes in the flame as well as black-box models were investigated. It could be shown, that the best representation of the measured data can be obtained using black-box models deploying square Hermite splines, whereas the dynamics of the system is best described by a third order system with dead time. Possibilities to utilize the measurement principle for burning control are discussed.

tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Print ISSN: 0171-8096
Volume: 66, 01/1999
Pages: 10

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