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Determination of me...
Determination of methane emissions from biogas plants, using different quantification methods
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- Hrad, M. (författare)
- University of Natural Resources and Life Sciences, Sweden
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- Huber-Humer, M. (författare)
- University of Natural Resources and Life Sciences, Sweden
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- Reinelt, T. (författare)
- Deutsches Biomasseforschungszentrum gemeinnützige GmbH, Germany
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- Spangl, B. (författare)
- University of Natural Resources and Life Sciences, Sweden
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- Flandorfer, C. (författare)
- Zentralanstalt für Meteorologie und Geodynamik, Austria
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- Innocenti, F. (författare)
- NPL, UK
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- Yngvesson, Johan (författare)
- RISE
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- Fredenslund, A. (författare)
- DTU Technical University of Denmark, Denmark
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- Scheutz, C. (författare)
- DTU Technical University of Denmark, Denmark
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(creator_code:org_t)
- Elsevier B.V. 2022
- 2022
- Engelska.
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Ingår i: Agricultural and Forest Meteorology. - : Elsevier B.V.. - 0168-1923 .- 1873-2240. ; 326
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Reliable and comparable quantification methods are needed for assessing the effectiveness of the biogas production and utilisation process in mitigating methane (CH4) emissions as well as improving the database for emission inventories. The objective of this study was to compare and validate CH4 emissions quantified at two agricultural biogas plants, for up to three days, using diverse on-site (two teams) and off-site methods (three teams), including differential absorption lidar (DIAL), tracer gas dispersion (TDM) and inverse dispersion modelling (IDM). For plant 1, with a constant combined heat and power (CHP) load, the average emission factor varied from 0.3% CH4 (on-site approaches) to 1.2% CH4 (off-site approaches). On-site approaches underestimated overall emissions due to many small (unquantified) CH4 leakages. All methods observed comparable average emission factors for plant 2, ranging between 1.9 and 2.2% CH4. In this case, the majority of emissions emanated from just a few sources. However, correcting the significant influence of the varying CHP load during the measurement campaign revealed significant differences between TDM and IDM (DIAL did not participate). It was demonstrated that TDM and IDM could recover the emission rate from a known point source (controlled release of CH4 via a small diffuser) within an accuracy of 93 ± 15% (TDM) and 92 ± 17% (IDM) under favourable and similar conditions.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- Anaerobic digestion
- Backward Lagrangian stochastic
- Emission monitoring
- Ground-based remote sensing
- Inverse dispersion modelling
- Tracer gas dispersion
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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