DOI: 10.1016/j.atmosenv.2018.01.057
Scopus记录号: 2-s2.0-85041710568
论文题名: A dual tracer ratio method for comparative emission measurements in an experimental dairy housing
作者: Mohn J ; , Zeyer K ; , Keck M ; , Keller M ; , Zähner M ; , Poteko J ; , Emmenegger L ; , Schrade S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 179 起始页码: 12
结束页码: 22
语种: 英语
英文关键词: Ammonia
; Comparative emission measurement
; Experimental dairy housing
; Greenhouse gas
; Tracer ratio method
Scopus关键词: Ammonia
; Carbon dioxide
; Emission control
; Gas emissions
; Housing
; Sulfur hexafluoride
; Emission measurement
; Emission reduction potentials
; Experimental section
; Independent assessment
; Mitigation measures
; Ratio method
; Real-time detection
; Reduction potential
; Greenhouse gases
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Agriculture, and in particular dairy farming, is an important source of ammonia (NH3) and non-carbon dioxide greenhouse gas (GHG) emissions. This calls for the development and quantification of effective mitigation strategies. Our study presents the implementation of a dual tracer ratio method in a novel experimental dairy housing with two identical, but spatially separated housing areas. Modular design and flexible floor elements allow the assessment of structural, process engineering and organisational abatement measures at practical scale. Thereby, the emission reduction potential of specific abatement measures can be quantified in relation to a reference system. Emissions in the naturally ventilated housing are determined by continuous dosing of two artificial tracers (sulphur hexafluoride SF6, trifluoromethylsulphur pentafluoride SF5CF3) and their real-time detection in the ppt range with an optimized GC-ECD method. The two tracers are dosed into different experimental sections, which enables the independent assessment of both housing areas. Mass flow emissions of NH3 and GHGs are quantified by areal dosing of tracer gases and multipoint sampling as well as real-time analysis of both tracer and target gases. Validation experiments demonstrate that the technique is suitable for both areal and point emission sources and achieves an uncertainty of less than 10% for the mass emissions of NH3, methane (CH4) and carbon dioxide (CO2), which is superior to other currently available methods. Comparative emission measurements in this experimental dairy housing will provide reliable, currently unavailable information on emissions for Swiss dairy farming and demonstrate the reduction potential of mitigation measures for NH3, GHGs and potentially other pollutants. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82970
Appears in Collections: 气候变化事实与影响
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作者单位: Laboratory for Air Pollution/Environmental Technology, Empa, Überlandstrasse 129, Dübendorf, Switzerland; Agroscope, Tänikon 1, Ettenhausen, Switzerland; Institute of Agricultural Sciences, Animal Nutrition, ETH Zurich, Universitätstrasse 2, Zürich, Switzerland
Recommended Citation:
Mohn J,, Zeyer K,, Keck M,et al. A dual tracer ratio method for comparative emission measurements in an experimental dairy housing[J]. Atmospheric Environment,2018-01-01,179