太阳能辅助沼气发酵装置设计与试验
Design and Test of a Solar Aided Biogas Digestion Device
查看参考文献11篇
|
文摘
|
为解决青藏高原地区气温低所带来的沼气池发酵物料温度低、沼气产气效率低等问题,充分利用该地区丰富的太阳能光热资源,本研究设计了一种以太阳能为辅助加热源的沼气发酵装置。结合当地气候条件,确定了该装置总体结构与关键部件设计选型,并进行了相关沼气发酵试验。试验结果表明,该装置能够实现在太阳辐射强度高、昼夜温差大的高原地区处于不同日照环境下的沼气发酵,能够使各种常用沼气发酵物在较为恒定温度下,产气时间缩短,较普通沼气池产气效率有所提高,增加了经济与使用效益。该装置的设计将为中国太阳能辅助沼气发酵装置的研发提供参考。 |
|
其他语种文摘
|
As a renewable biomass-based energy source,biogas has the advantages that it has a widely available fuel source, no pollution and low cost. The biogas digester has great potential for use in Chinese rural areas. Temperature is a crucial factor in the running of a biogas digester, with a recommended temperature of 30~C. On the Tibetan Plateau, low ambient temperature cause rural household biogas digesters to run at very low temperatures. Low temperature brings a series of problems to anaerobic digesters, such as leavening freezing and low methane fermentation efficiency. However, there is an abundance of solar energy in this area. In order to solve these problems, we designed a biogas digestion device which uses solar energy as the auxiliary heating source. The device is based on 10m~3 rural domestic biogas digesters currently used on the Tibetan Plateau. This paper outlines the local climate conditions, the design of the solar aided biogas digestion device, the overall structure and critical components of the device, and explains the working principles. The design of the solar collector system is based on fermentation dry gas production, fermentation broth gas production, fermentation broth heat absorption, aperture area and the setup requirements of the solar collector system. We then tested the biogas fermentation ability of this device in the Yushu area, Tibetan Plateau. The test results demonstrated its ability to produce methane in a region with high solar radiation intensity, large temperature differences between day and night, and under different levels of solar radiance. Gas production time was shortened by three or four times by keeping methane leavening at a constant temperature, which improved biogas production efficiency by 3.5 times. The device can increase economic and production efficiency compared to ordinary anaerobic digesters. The design of the device will provide reference for the research and development of solar aided biogas digestion devices in China. |
|
来源
|
资源科学
,2012,34(11):2034-2038 【核心库】
|
|
关键词
|
太阳能
;
沼气
;
发酵
;
设计
;
试验
|
|
地址
|
1.
西北农林科技大学林学院, 杨凌, 712100
2.
西北农林科技大学农学院, 杨凌, 712100
3.
中国科学院地理科学与资源研究所, 北京, 100101
|
|
语种
|
中文 |
|
ISSN
|
1007-7588 |
|
学科
|
农业工程 |
|
基金
|
国家科技支撑计划项目
|
|
文献收藏号
|
CSCD:4700694
|
参考文献 共
11
共1页
|
|
1.
韩少平. 北方蔬菜温室及沼气加热系统的设计.
农业机械学报,2006,37(9):116-118
|
被引
4
次
|
|
|
|
|
2.
黄晓鹏. 基于篮牙的北方沼气加热温室控制系统设计.
农业机械学报,2008,39(3):191-194
|
被引
4
次
|
|
|
|
|
3.
孙勇. 高寒地区两相厌氧户用沼气系统设计与试验.
农业工程学报,2012,28(9):196-201
|
被引
3
次
|
|
|
|
|
4.
邱凌. 太阳能双级增温沼气发酵系统的增温效果.
农业工程学报,2011,27(S1):166-171
|
被引
6
次
|
|
|
|
|
5.
戴飞. 自动跟踪式小型太阳能集热玉米果穗干燥装置设计.
农业工程学报,2012,28(5):189-193
|
被引
9
次
|
|
|
|
|
6.
刘圣勇. 采用太阳能集热器干燥玉米的研究.
农业工程学报,2001,17(6):93-96
|
被引
12
次
|
|
|
|
|
7.
孙玉芳. 国内外可再生能源产业政策比较分析.
农业工程学报,2006,22(1):47
|
被引
3
次
|
|
|
|
|
8.
杨世昆. 太阳能草捆干燥设备设计与试验.
农业机械学报,2011,42(4):81-86
|
被引
10
次
|
|
|
|
|
9.
冯永忠.
太阳能辅助沼气发酵装置及方法.中国专利:ZL201110084281.X,2011
|
被引
1
次
|
|
|
|
|
10.
蒲小东. 大中型沼气工程不同加热方式的经济效益分析.
农业工程学报,2010,26(7):281-284
|
被引
12
次
|
|
|
|
|
11.
马洪江. 混联式太阳能果蔬烘干机的研制.
农业工程学报,2009,25(3):50-54
|
被引
13
次
|
|
|
|
|
了解气象卫星更多信息，请访问