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The study presents the development of a method for the long term monitoring of methane emissions from pressure relief valves (PRV1PRV: pressure relief valve.1) of biogas storages, which has been verified during test series at two PRVs of two agricultural biogas plants located in Germany. The determined methane emission factors are 0.12gCH4kWhel−1 (0.06% CH4-loss, within 106days, 161 triggering events,...
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