农村生物质气化燃气分散供暖经济和环境效益分析

周卫红; 陈冠益; 马隆龙; 颜蓓蓓; 夏宗鹏

doi:10.3969/j.issn.1002-6819.2014.14.027

农村生物质气化燃气分散供暖经济和环境效益分析

周卫红^1,2,
陈冠益^1,3,
马隆龙^1,4,
颜蓓蓓^1,5,
夏宗鹏¹

1.
天津大学环境科学与工程学院，天津 300072
2.
辽宁科技大学土木工程学院，鞍山 114051
3.
天津大学内燃机燃烧学国家重点实验室，天津 300072
4.
中国科学院广州能源研究所，广州 510640
5.
天津大学中低温热能高效利用教育部重点实验室，天津 300072

基金项目: 国家科技支撑计划课题（2011BAD15B05）；农业科技成果转化资金项目（2011GB23600001）；"十二五"农村领域国家科技计划（2011BAJ08B06-6）

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- 收稿日期: 2013-11-02
- 修回日期: 2014-06-29
- 发布日期: 2014-07-14

Economic and environmental benefits analysis of decentralized heating using biomass gasification gas in rural area

1.
School of Environmental Science and Technology, Tianjin University, Tianjin 300072, China
2.
School of Civil Engineering, University of Science and Technology LiaoNing, Anshan 114051, China
3.
State Key Lab of Internal Combustion Engines, Tianjin University, Tianjin 300072, China
4.
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
5.
Key Laboratory of Efficient Utilization of Low and Medium Grade Energy 《TianjinUniversity》, Ministry of Education, Tianjin 300072, China

摘要

摘要: 为了充分利用农业废弃物资源，改善北方农村冬季供暖条件，该文对生物质气化燃气分散式供暖技术进行了经济和环境效益分析，探讨其在农村供暖中的可行性。生物质气化分散式供暖具有节约能源、减少大气污染、温度调节方便等优点。通过借鉴天然气分散式供暖的研究成果和对生物质气分散式供暖进行分析，结果表明采取分段式控温、分房间控温和建筑物节能改造等手段可将供暖费用降到合理水平，基本与城市供暖费用相同。通过该文分析可知生物质气化燃气分散式供暖可以作为农村供暖的一种新模式。
- 农村地区 /
- 生物质 /
- 气化 /
- 燃气 /
- 分散式供暖
Abstract: Abstract: The economic and environmental benefits of decentralized heating technology produced by burning gas through the biomass gasification method were analyzed in this paper. The whole decentralized heating system can be divided into three sections. In the first section, the biomass is converted into the biomass gasification gas (i.e., combustible gas). In the second, pipelines are adopted through which the biomass gasification gas is transported to the user's home. Indoor heating pipes consist of the third section, which connect the transporting pipelines with a gas-heating stove located at the user's home. The economic estimation shows that the heating cost is 37.59 yuan per square meter in rural areas during a heating period with this kind of decentralized heating system, which is higher than the heating cost in cities. But the decentralized heating method has many other advantages, such as saving energy, easy charging, easy adjusting of the temperature, reducing gas costs, and simultaneous hot water supply. The decentralized heating cost is charged by gas consumption. Thus, household heat meters should be installed for measuring the gas consumption; and accordingly, the charge calculation can be obtained for heating enterprises. Users can easily adjust the indoor temperature in different periods according to their demand. Gas consumption for heating is five times higher than that for cooking. With the increase of biomass gas production, the cost of biomass gasification gas is reduced, which is beneficial in promoting the commercialization of heating using biomass gasification gas. Decentralized heating technology plays an important role in developing the rural living environment. Decentralized heating will reduce the particulate matter pollution and CO2 emission that results from heating by burning coal and biomass. The calculated results in this paper show that the quantity of CO2 emission is about 5.5 tons per household during each heating period. However, the heating cost can be decreased to a reasonable level through technology methods such as sectional temperature control, temperature control in different rooms, and building energy saving measures. When no one is in the room, the temperature can be adjusted lower to maintain a minimum temperature that is still high enough to avoid frozen pipes. This adjustment has been called time-interval control strategy. Therefore, costs can be saved by about 46.4% compared to the constant temperature control method. To save heating costs, different room temperatures will be controlled through flow control in the decentralized heating system. The building heat load is an important factor affecting heating cost. Adopting energy saving measures, according to the energy saving standard, can reduce the building heat load. It will play a positive role in reducing the decentralized heating costs. Additionally, in this paper, the security and reliability problems were emphasized and some corresponding countermeasures were put forward. Furthermore, governments should provide some financial support for rural heating and encourage farmers to adopt clean heating modes. In the future, with technology improvement and the support of government funding, the decentralized heating technology is expected to spread in some rural areas and become an important way of heating.
- rural areas /
- biomass /
- gasification /
- gas /
- decentralized heating

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参考文献(30)

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农村生物质气化燃气分散供暖经济和环境效益分析

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Economic and environmental benefits analysis of decentralized heating using biomass gasification gas in rural area

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