Life Cycle Assessment Of Biomass Power

With the social and economic development, the consumption of non-renewable resource such as coal, oil, gas increase quickly. Environmental deterioration, global warming, atmospheric acidification and other global climate change become increasingly serious. Human living environment and sustainable development threaten seriously, therefore, new and clean renewable energy resources are needed. Biomass power generation has the features that power quality, reliability, technology maturity in renewable energy, and it is an environmental friendly renewable energy technologies.Based on the analysis of the basic theory and research of life cycle assessment, this thesis draws on domestic and foreign research methods, study the life-cycle assessment of biomass power generation systematicly, and then establish the initial establishment of biomass power generation life-cycle assessment model, apply this model comparison between the two biomass power generation and thermal environmental impact of each single type of environmental load caused by the value.The results of this study shows that total product life cycle environmental load index of biomass power generation and thermal power unit features are 17280.56×10-12/a and 971631.93×10-12/a, biomass power generation's index number is less than the environmental load index 98%. Corresponding reduction in the rate of individual indicators:ADP was 98.2%, SW 80.4%, GWP of 87%, POC was 81.1%, ECA was 62.7%, AP was 96.4%, NP was 91.5%, HT was 90.4%. Visible, due to the use of biomass power generation such as agriculture and forestry waste, do not consume non-renewable resources, and its sulfur content of biomass is very low, only 22% of coal and biomass ash in the alkaline earth may be part of the capture SOx, biomass power generation to reduce non-renewable resource consumption and atmospheric acidification.It can clearly be seen that in the environmental impacts, biomass power generation can reduce non-renewable resource consumption and atmospheric acidification, the resule indicate that on the one hand the model can be used for biomass power generation systems analysis life cycle environmental impact of each link, on the other hand it can provide basis for furtherly improve biomass power generation technology.