کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7063927 1459814 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
How certain are greenhouse gas reductions from bioenergy? Life cycle assessment and uncertainty analysis of wood pellet-to-electricity supply chains from forest residues
ترجمه فارسی عنوان
چقدر مقدار گازهای گلخانه ای از انرژی زیستی چقدر است؟ ارزیابی چرخه زندگی و تجزیه و تحلیل عدم قطعیت زنجیره تامین گلوله به برق از بقایای جنگل
کلمات کلیدی
بقایای جنگل، گلوله های چوبی، انتشار گازهای گلخانه ای، ذخیره سازی ذخیره سازی، ارزیابی چرخه حیات، عدم قطعیت انتشار،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Climate change and energy policies often encourage bioenergy as a sustainable greenhouse gas (GHG) reduction option. Recent research has raised concerns about the climate change impacts of bioenergy as heterogeneous pathways of producing and converting biomass, indirect impacts, uncertainties within the bioenergy supply chains and evaluation methods generate large variation in emission profiles. This research examines the combustion of wood pellets from forest residues to generate electricity and considers uncertainties related to GHG emissions arising at different points within the supply chain. Different supply chain pathways were investigated by using life cycle assessment (LCA) to analyse the emissions and sensitivity analysis was used to identify the most significant factors influencing the overall GHG balance. The calculations showed in the best case results in GHG reductions of 83% compared to coal-fired electricity generation. When parameters such as different drying fuels, storage emission, dry matter losses and feedstock market changes were included the bioenergy emission profiles showed strong variation with up to 73% higher GHG emissions compared to coal. The impact of methane emissions during storage has shown to be particularly significant regarding uncertainty and increases in emissions. Investigation and management of losses and emissions during storage is therefore key to ensuring significant GHG reductions from biomass.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomass and Bioenergy - Volume 79, August 2015, Pages 50-63
نویسندگان
, , ,