at Google ScholarTitle data
Hagen, Gunter ; Herrmann, Julia ; Wöhrl, Thomas ; Streibl, Benedikt ; Moos, Ralf:
Sensors in Biomass Combustion Exhaust.
2024
Event: Future of Emission Control
, 21.-23.07.2024
, Karlsruhe, Germany.
(Conference item: Conference
,
Speech
)
Abstract in another language
Biomass combustion and its use in energy technology is part of recent discussions. It might save atmospheric input of fossil carbon but is also source of harmful emissions. Depending on the facilities size and the used combustible material, emission limits are emerging. Control and monitoring of exhaust- or flue-gas aftertreatment becomes mandatory. Robust sensors are needed. Albeit aftertreatment systems for that purpose are similar to well-known developments in the field of automotive applications, according gas sensors are a challenge. In many cases, for biomass combustion no “engine characteristic map” can be provided and flue gas compositions are mostly not as “clean” as automotive exhaust. The contribution introduces different kinds of sensors, possibly needed for flue gas aftertreatment. A sensor for reducing gases (like CO or HC), to be installed in wood-log fueled fireplaces in domestic households will help to control air-steams automatically. We found impressing results in comparison to FTIR-analysis (MKS) of the flue gas. A former concept of a zeolite-based ammonia sensor was redeveloped to a robust and reliable device to be installed in SCR aftertreatment systems for biomass waste material to control ammonia-dosing or for diagnosis purpose. Here also, the results are highly promising. Particulate matter / soot emissions (fine dust) are the main part in public discussions on sustainability and sense of purpose of biomass combustion. Here in particular, sensor-based monitoring or controlling is challenging. Our efforts address the application of simple soot-sensors (conductivity-based like in automotive application) as well as the correlation of particulate formation and development with gas sensor and other secondary data in comparison with highly dynamic in-situ particle analysis (DMS500, Cambustion). Even other in-house developed sensor concepts (e.g. for NOx, O2 or H2) were investigated in real gas atmosphere of wood combustion and might help to gain insights into the complex relations between operating parameters and flue gas composition.
Further data
| Item Type: | Conference item (Speech) |
|---|---|
| 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 > Central research institutes > Bayreuth Center for Material Science and Engineering - BayMAT Research Institutions > Research Units > Zentrum für Energietechnik - ZET |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 08 Aug 2024 11:44 |
| Last Modified: | 08 Aug 2024 11:44 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/90166 |