High Temperature Electrochemical CO/HC Sensor for Wood Firing Process: Signal Stabilization by Dynamic Electrochemical Methods
Conference: Sensoren und Messsysteme - 21. ITG/GMA-Fachtagung
05/10/2022 - 05/11/2022 at Nürnberg
Proceedings: ITG-Fb. 303: Sensoren und Messsysteme
Pages: 3Language: englishTyp: PDF
Authors:
Zhang, Xin (LAMTEC Meß- und Regeltechnik für Feuerungen GmbH & Co KG, Walldorf, Germany & Institute for Sensor and Information Systems (ISIS), Karlsruhe University of Applied Sciences, Karlsruhe, Germany)
Schwab, Christoph; Ojha, Binayak; Kohler, Heinz (Institute for Sensor and Information Systems (ISIS), Karlsruhe University of Applied Sciences, Karlsruhe, Germany)
Abstract:
The stability of a high temperature electrochemical CO/HC sensor (mixed potential type) can be clearly improved by sensitivity check with electrochemical impedance spectroscopy and regeneration by cyclic cathodic polarization under synthetic air conditions. Based on these results, a signal stabilization concept was proposed, and an instrument was built up to improve the quality and stability of automatic control of wood combustion processes. First results showed a clearly more stable sensing behavior and considerable emission reduction of a wood-log fueled fireplace with such control.