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Application of a Robust Thermoelectric Gas Sensor in Firewood Combustion Exhausts

Title data

Hagen, Gunter ; Herrmann, Julia ; Zhang, Xin ; Kohler, Heinz ; Hartmann, Ingo ; Moos, Ralf:
Application of a Robust Thermoelectric Gas Sensor in Firewood Combustion Exhausts.
In: Sensors. Vol. 23 (2023) Issue 6 . - 2930.
ISSN 1424-8220

Official URL: Volltext

Project information

Project title:
Project's official title
Project's id
Emissionsminderungsstrategien zur umweltverträglichen Verbrennung (UVV) auf Basis von aktuellen Forschungsergebnissen

Project financing: Andere

Abstract in another language

The quality of wood combustion processes can be effectively improved by achieving the automated control of the combustion air feed. For this purpose, continuous flue gas analysis using in situ sensors is essential. Besides the successfully introduced monitoring of the combustion temperature and the residual oxygen concentration, in this study, in addition, a planar gas sensor is suggested that utilizes the thermoelectric principle to measure the exothermic heat generated by the oxidation of unburnt reducing exhaust gas components such as carbon monoxide (CO) and hydrocarbons (CxHy). The robust design made of high-temperature stable materials is tailored to the needs of flue gas analysis and offers numerous optimization options. Sensor signals are compared to flue gas analysis data from FTIR measurements during wood log batch firing. In general, impressive correlations between both data were found. Discrepancies occur during the cold start combustion phase. They can be attributed to changes in the ambient conditions around the sensor housing.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 16 Mar 2023 10:19
Last Modified: 16 Mar 2023 10:19