| 摘要: |
| 具备热电联产功能的生物质热电厂相对于生物质发电厂具有更高的能源利用效率,不仅可以满足冬季采暖需求,而且更适合于寒冷地区村镇体系发展生物质能源,但目前其发展受成本制约严重,而运输成本是关系运营成本的重要问题之一. 为实现根据研究区域内村镇人口密度数据来提升生物质热电厂运输成本的研究目的,依据不同农作物地理分布状态测算生物质潜能,运用GIS分析工具的网络分析、邻近分、叠加分析等方法,依托人口分布与能源需求数据确定生物质热电厂位置与服务区域,采用含收费、油耗、路况多种干扰因素的公式计算生物质热电厂原料供应范围与运输成本,形成区域范围内优化运输路径. 分析结果表明,根据能源完全自给自足的假设前提进行判断,生物质热电厂仅适合于人口密度较低的村镇体系,供应范围随着村镇人口密度增加呈现反S曲线形态,运输成本随着村镇人口密度增加呈现指数曲线形态,当区域范围内村镇人口密度小于65人/km2时建设生物质热电厂的整体运营效率更高. |
| 关键词: 村镇 人口密度 生物质热电厂 供应范围 运输成本 |
| DOI：10.11918/j.issn.0367-6234.201808126 |
| 分类号:X703.1 |
| 文献标识码:A |
| 基金项目:国家自然科学基金(51578175) |
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| Influence of rural population density on the transportation cost of biomass combined heat and power plants |
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ZHANG Yifei1,MA Keni2
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（1.Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology, Ministry of Industry and Information Technology (Harbin Institute of Technology), Harbin 150001, China; 2. China Academy of Urban Planning & Design, Beijing 100037, China）
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| Abstract: |
| Biomass combined heat and power (CHP) plants have higher energy efficiency than biomass power plants. They can meet the demand of heating in winter, and they are more suitable for cold regional village and town system to develop biomass energy. However, such development is limited by cost, especially operation cost, and transportation cost. In order to achieve the research purpose of improvingTo improve the transportation cost of biomass CHP plants according to rural population density data in the research area, the GIS analysis tool of network analysis, adjacent points, overlay analysis, as well as and other methods on the basis of the distribution status of different crops biomass potential are used and position and service area relying on the population distribution and biomass CHP plants’ energy demand data are determined. In the meantime, the raw material supply area of the biomass CHP plants and the transportation cost were calculated, which contains a variety of charges, fuel consumption, and traffic interference factors of the formula, and then regional scale optimization of transportation paths was obtained. Results show that biomass CHP plants are only suitable for low population density villages and towns systems according to the assumption of energy being completely self-sufficient. The supply area presented an inversed S curve pattern as rural population density increased, and transport costs presented an exponential curve pattern as rural population density increased. The overall operating efficiency of the biomass CHP plants was higher when the rural population density was not more than 65 people/km2. |
| Key words: rural population density biomass combined heat and power plants supply area transportation cost |
