帮助 关于我们

返回检索结果

户用太阳能恒温沼气生产系统全年产气性能试验
Gas characteristics of household solar biogas production system with constant temperature in whole year

查看参考文献20篇

李金平 1   甄箫斐 1   杨霭蓉 1   黄娟娟 1   董缇 2  
文摘 为满足北方农户全年生活燃气需求和研究户用恒温沼气池的产气特性,研发了发酵容积为3 m~3的地上式太阳能恒温沼气生产系统。从沼气池的产气稳定性,不同发酵温度、不同发酵原料下的产气性能,全年产气特性4个方面对该系统做了试验研究。在兰州地区气象条件下,厌氧发酵试验结果发现:该太阳能恒温产气系统可全年稳定连续运行,全年累计产气398.52 m~3;当最低环境温度分别高于-19.9、0.7和6.9 ℃时,系统可以实现26、28和37 ℃恒温厌氧发酵;当猪粪与农户常见的玉米秸秆、蒿草、莲花菜叶按一定比例混合发酵后,可显著提高沼气中甲烷体积分数并延长或缩短发酵周期。
其他语种文摘 In order to ensure the annual gas demand of farmers in North China and explore the gas characteristics in the household biogas digester with constant temperature, the 3 m~3 solar constant temperature biogas digester was developed. Stability of the biogas, biogas characteristics under different fermentation temperature and different fermenting materials, annual biogas characteristics, and operation strategy were studied with this system. The batch type experimental research showed that the system could be run steadily and continuously throughout the year. And the annual cumulative production of biogas was 398.52 m~3 under the weather conditions in Lanzhou area. The system could realize constant temperature anaerobic fermentation at 26, 28 and 37 ℃ when the lowest ambient temperature exceeded -19.9, 0.7 and 6.9 ℃, respectively. In addition, the methane volume fraction was improved prominently or the production gas cycle was shortened when the pig manure was mixed with corn straw, wormwood and lotus leaves by a certain mixing proportion. Compared with pig manure fermentation, the volume fraction of methane of biogas produced by mixed material was promoted by about 8% as the volume ratio of raw material pig manure ∶ wormwood ∶ water ∶ inoculums was 1∶2∶2∶1. It could shorten the fermentation period remarkably when the wormwood, lotus and pig mature were taken as fermentation materials. At the end of the fermentation process with the mixed material at 37 ℃, the daily biogas production was difficult to meet consumers′ demand. And the daily average biogas production could keep 0.8 m~3 in a week if we supplied 0.025 m~3 new material with the same proportion. This experiment can provide reference for the efficient use of renewable energy. Utilizing the mixed materials can regulate the gas production and gas quality, and advices can be adopted for users to use raw materials which come from local resources according to season conditions. Three pails of new materials with same proportion(0.025 m~3) are needed to replenish for anaerobic fermentation equipment every week, when the stability of gas production is unsure and the daily gas production is hard to satisfy users requirement that is to keep the daily gas production of 0.8 m~3 one week. When the gas consumption increases, the measures that regulate temperature and feed to add the gas production can be adopted to satisfy the biogas utilization demand. The biogas production system with constant temperature operates steadily all the year round. Meanwhile, biogas can completely satisfy the demand of 3-5 people′s household cooking and gas in a year. And the biogas digester using pig manure as raw materials can still achieve the gas production with(26±1.5) ℃ constant temperature and the daily biogas production of over 1.3 m~3, when the average environmental temperature range is between -23.8 and -5 ℃ in winter, even encountering 3 successive overcast or snowy weather. The biogas digester using pig manure and wormwood as raw materials can achieve the 37℃ gas production and the daily biogas production of over 1.7 m~3. And when the year-round solar radiation range is 11.7-17.4 MJ/m~2, the fermentation tank per cubic meter needs 10 glass vacuum tube solar collectors of φ58 mm×1 800 mm.
来源 农业工程学报 ,2016,32(10):220-225 【核心库】
DOI 10.11975/j.issn.1002-6819.2016.10.031
关键词 发酵 ; 沼气 ; 秸秆 ; 户用恒温沼气生产系统 ; 混合原料 ; 产气特性
地址

1. 兰州理工大学西部能源与环境研究中心, 甘肃省生物质能与太阳能互补供能系统重点实验室;;西北低碳城镇支撑技术协同创新中心, 兰州, 730050  

2. 中国科学院广州能源研究所, 广州, 510640

语种 中文
文献类型 研究性论文
ISSN 1002-6819
学科 能源与动力工程
基金 兰州理工大学"红柳杰出人才计划" ;  甘肃省自然科学基金 ;  国家国际科技合作专项 ;  国家863计划
文献收藏号 CSCD:5702666

参考文献 共 20 共1页

1.  中国产业信息. 2015年中国沼气行业发展概况,2015 被引 1    
2.  沼气网. 对农村沼气可持续发展的思考,2010 被引 1    
3.  刘树民. 中国北方寒冷地区沼气的综合开发利用. 内蒙古农业大学学报:自然科学版,2002(4):83-86 被引 4    
4.  Sander B. Small-scale household biogas digesters:An option for global warming mitigation or a potential climate bomb. Renewable and Sustainable Energy Reviews,2014,33(2):736-741 被引 5    
5.  Ferrer I. Biogas production in low-cost household digesters at the Peruvian Andes. Biomass and Bioenergy,2011,35(5):1668-1674 被引 9    
6.  Chen Z G. The transient analysis of a household biogas digester with solar assisted heating system. Acta Energiae Solaris Sinica,2011,32:1139-1143 被引 1    
7.  郭甲生. 户用太阳能辅助加热沼气池动态传热仿真. 计算机仿真,2008,28(1):360-364 被引 2    
8.  张杨竣. 太阳能辅助加热户用沼气池. 城市燃气,2011(8):18-23 被引 1    
9.  Dai Rong. Application of solar heating system in biogas production. 45HProceedings of ISES World Congress,2009:2388-2392 被引 1    
10.  赵国明. 寒冷地区新型保温节能沼气发酵装置的运行试验. 吉林农业大学学报,2013,35(3):361-363 被引 3    
11.  Su Y. Research and analysis of solar heating biogas fermentation system. Procedia Environmental Sciences,2011,11:1386-1391 被引 5    
12.  Tian Y. Study of solar heated biogas fermentation system with a phase change thermal storage device. Applied Thermal Engineering,2015,88:418-424 被引 1    
13.  Axaopoulos P. Simulation and experimental performance of a solar-heated anaerobic digester. Solar Energy,2001,70(2):155-164 被引 7    
14.  El-Mashad H M. Design of a solar thermophilic anaerobic reactor for small farms. Biosystems Engineering,2004,87(3):345-353 被引 11    
15.  Eryasar G K A. An application of solar energy storage in the gas:Solar heated biogas plants. Energy Sources,2007,29(16):1513-1520 被引 7    
16.  柏建华. 太阳能加热的恒温沼气池产气性能实验研究,2011 被引 4    
17.  李金平. 地上式户用太阳能恒温沼气池产气性能. 农业工程学报,2015,31(5):287-291 被引 5    
18.  冯荣. 太阳能加热的地上式户用沼气生产系统热性能分析. 农业工程学报,2015,31(15):196-200 被引 7    
19.  姚向君. 生物质能资源清洁转化利用技术,2005:45 被引 2    
20.  周宪龙. 不同发酵原料对户用沼气产气量的影响. 农学学报,2012(12):57-61 被引 1    
引证文献 3

1 郑健 沼液穴灌入渗特征及Philip 入渗模型拟合 干旱地区农业研究,2019,37(1):144-150
被引 3

2 甄箫斐 户用太阳能恒温沼气生产系统批式半连续发酵产气性能试验 太阳能学报,2019,40(7):1997-2003
被引 0 次

显示所有3篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护:中国科学院文献情报中心
地址:北京中关村北四环西路33号 邮政编码:100190 联系电话:(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号