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Sensors for Biomass Use in Energy Technology

Title data

Hagen, Gunter:
Sensors for Biomass Use in Energy Technology.
Event: The 19th International Meeting on Chemical Sensors, IMCS 19 , 4th - 8th August 2023 , Changchun, China.
(Conference item: Conference , Speech )

Abstract in another language

Climate change urges the transition from fossil resources to renewable and sustainable energy technologies. Heating is one of the most energy intensive issues. The use of biomass might be carbon neutral if local resources are used. Furthermore, combustion must be efficient. Automated control of wood-burning should be a standard even in domestic homes. Larger facilities need to be equipped with aftertreatment systems to prevent from toxic emissions. A couple of robust and long-term-stable high-temperature gas or particulate sensors is needed to enable effectiveness of the above-mentioned technologies:
- Sensor for reducing gases such like carbon-monoxide (CO) and unburned hydrocarbons (HC) to be installed in wood-log fueled fireplaces: The voltage output signal of a catalytically coated thermopile structure depends linearly on the concentration of gases which generate exothermic heat locally. We found fast and robust results.
- Sensors for ammonia (NH3) or nitrogen-oxides (NOx) to be installed in SCR aftertreatment systems for biomass waste material: Impedance-based signals of functional layers (zeolite for NH3, KMnO4 for NOx) on interdigital electrodes.
- Sensor for the residual oxygen concentration (ROC, O2) in a simple planar manufacturing technology to be easily integrated on other sensor types: Resistive type sensor with barium tantalate as temperature-independent functional material, manufactured in powder-aerosol-technology (ceramic layers at room-temperature).
- Sensor for particulate matter (PM) for helping to monitor fine dust emissions from biomass combustion: Application of well-known principle in wood-log fueled fireplaces. Major drawback of all these sensors is their dependency on cooling effects due to high dynamic gas flow characteristics, leading to temperature inhomogeneities. In biomass flue gas application, this can be overcome by engineering means.

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: 06 Sep 2023 05:47
Last Modified: 06 Sep 2023 05:47