考慮碳排放因素的生物質(zhì)發(fā)電項目選址研究
[Abstract]:Biomass straw power generation technology is a relatively mature and reliable new energy power generation technology, which has been known for its low emission and even zero emission environmental benefits. According to the analysis of the development history and status quo of biomass power generation projects in China, the development of biomass power generation in China has undergone research and development and testing, rapid development. There are three stages of development and maturity. In the R&D and experimental stages, the main research and technological development are focused on the small biomass gasification power generation technology. In the rapid development stage, the biomass straw power generation projects in China are mainly based on direct-fired power generation technology. Therefore, the technical preparation of biomass straw power generation projects in China is insufficient. In terms of regional distribution, the total amount of crop straw resources is abundant in China, but the distribution of biomass straw power generation projects in different provinces is not coordinated with the distribution of straw resources. The unreasonable layout of the project will also make it difficult to collect straw raw materials. The radius of the raw materials exceeds the reasonable collection radius, which not only reduces the economic benefits of the biomass power generation project, but also increases the transportation cost of the biomass straw raw materials and the total carbon emissions in the transportation process. The development of biomass straw power generation projects in China has been hindered by many problems, including high construction cost, high straw raw material cost, high operation and maintenance cost, low productivity utilization rate and high self-use rate of power plants. The selection of biomass power generation technology is also affected by the decision-making results of project site selection, so site selection is the primary and key problem to be solved in the process of project management of biomass power generation. The biomass straw direct-fired power generation system can be divided into four subsystems: straw collection and pretreatment subsystem, straw transportation and storage subsystem, straw combustion power generation subsystem and waste disposal subsystem. Based on the analysis of the economic and carbon emission behaviors involved in the production activities, this paper identifies the factors affecting the economic benefits and carbon emission reduction benefits of biomass power generation projects, and analyzes the correlation among the various factors. Location suitability evaluation method chooses the most suitable location for the construction and operation of biomass power generation projects. The analysis of the economic benefits and total carbon emissions of biomass power generation projects establishes an evaluation index selection set for the project location suitability evaluation, and combines with the analysis of the existing index set used in the evaluation research of biomass power generation projects. In this paper, the social acceptance of each evaluation index is further analyzed, and the evaluation index with higher social acceptance is selected to construct the regional suitability evaluation index system of biomass power generation project. There are some uncertainties in the index weight of biomass power generation project location selection. In this paper, the method of scenario analysis is used to set up the weight distribution of each index under three different scenarios. Standard Mixed Integer Programming (MIP) model. Taking the optimal economic benefit of biomass power generation project and the minimum total carbon emission of the project life cycle as the planning objectives, the corresponding economic and carbon emission calculation formulas are constructed by the economic input and carbon emission output results of the project production activities obtained in the process of system decomposition analysis. During the operation of biomass power generation projects, the total amount of biomass straw provided by each region can not exceed the actual amount of straw available in the region. At the same time, the total amount of straw raw materials transported to power plants in each region can not exceed the actual amount of straw available in the principle of economy and carbon emissions at least. Based on the above-mentioned conditions, this paper establishes a biomass power generation project location model. In view of the above-mentioned regional suitability evaluation and project location model, this paper analyzes the application conditions of the model with practical cases. According to the results of case analysis, carbon emission factors on biomass power generation project location selection. The greater the weight of the carbon emission index, the greater the difference between the evaluation results and those only considering economic benefits. At the same time, the project location model considering the impact of carbon emission factors of biomass power generation projects is more scientific and integral than that only considering economic benefits. The site model has been improved.
【學位授予單位】:南京航空航天大學
【學位級別】:博士
【學位授予年份】:2015
【分類號】:TM619
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