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首页> 外文会议>2012 Third International Conference on Digital Manufacturing and Automation >A Comprehensive Model for Evaluation of Carbon Footprint and Greenhouse Gages Emission in Household Biogas Plants
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A Comprehensive Model for Evaluation of Carbon Footprint and Greenhouse Gages Emission in Household Biogas Plants

机译：家用沼气厂碳足迹和温室气体排放的综合评价模型

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摘要

Based on Life Cycle Assessment and other related methods, this paper introduced a comprehensive model for the evaluation of the carbon footprint and greenhouse gases emission in household biogas plants including nearly all the processes of the household biogas project, such as the collection of raw materials, fermentation processing, and fermentation residue processing and so on. The carbon footprint and greenhouse gas emission from three classical household biogas plants in China were analyzed. Considering the greenhouse gases emissions in life cycle of household biogas plants, the main emission processes were investigated to be the utilization of biogas, such as biogas combustion use and transportation of materials which both accounting for more than 98%. The greenhouse gases emissions in the stages of methane leakage and construction materials production were only estimated to be 1.1% and 0.5%, respectively. As comparing to the meandering fabric digester and the precast reinforced concrete panels fabricated digester, the in-situ concrete cylindrical water pressure digester showed the lowest carbon footprint and accordingly most potential for the reduction of greenhouse gases emission.  It tried to analyze three household biogas plants'' carbon footprint and greenhouse gas emission during the stages. It can provide the basis for optimization low-carbon proposal and the analysis and built up a simple carbon footprint calculation model. About household digesters life cycle greenhouse gas emissions, the main emission process are  biogas utilization period and transport phase , accounting for more than 98.38 percent , followed by methane leak stage and building materials production stage, about 1.11%  and 0.51% .Compared to meandering fabric type digesters and precast reinforced concrete panels fabricated digesters, in-situ concrete cylinder shaped hydraulic digester''s carbon footprint is minimum so greenhouse gas emis- ion reduction potential is great.
机译：基于生命周期评估和其他相关方法，本文介绍了一个综合模型，用于评估家庭沼气厂的碳足迹和温室气体排放，包括家庭沼气项目的几乎所有过程，例如原料收集，发酵加工，发酵残渣加工等。分析了中国三个经典的家用沼气厂的碳足迹和温室气体排放。考虑到家用沼气厂生命周期中的温室气体排放，调查的主要排放过程是沼气的利用，例如沼气的燃烧利用和材料的运输，两者均占98％以上。据估计，甲烷泄漏和建筑材料生产阶段的温室气体排放分别仅为1.1％和0.5％。与曲折式织物蒸煮器和预制钢筋混凝土预制板蒸煮器相比，原位混凝土圆柱水压蒸煮器显示出最低的碳足迹，因此具有减少温室气体排放的最大潜力。它试图分析这三个家庭沼气厂的碳足迹和温室气体排放。它可以为优化低碳方案和进行分析提供依据，并建立一个简单的碳足迹计算模型。关于家用沼气池生命周期的温室气体排放，主要排放过程为沼气利用期和运输阶段，占98.38％以上，其次是甲烷泄漏阶段和建材生产阶段，分别为1.11％和0.51％。型沼气池和预制钢筋混凝土预制沼气池，原位混凝土圆柱型液压沼气池的碳足迹最小，因此温室气体减排潜力很大。

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