摘要
寒冷地区,日光温室越冬生产需要补充热能来满足作物生长需求的温度环境,传统加温方式不但增加农业生产的运营成本,也污染环境。为了改善这一问题,研究设计温室太阳能辅助加温系统,利用太阳能集热器收集太阳能,用水做媒介存储热能,在温室后墙布设散热水管,根据室内外环境条件控制运行,对温室内小气候主动调节,创造温室作物生长的适宜环境条件。该研究对系统墙挂水管散热方式的加温效果、热效率、节能减排效率进行试验分析。结果表明:该加温系统,在晴天条件下,可使温室内平均气温提高5.7℃,最低气温提高3.7℃;在阴天条件下,应用加温系统使温室内平均气温提高3.5℃。最低气温提高7.1℃。但墙挂式加温系统对土壤温度的影响较小。选择沈阳地区冬季最寒冷的4个月为加温系统的运行测试和试验数据采集时段,计算得到墙挂式太阳能辅助加温系统的工作热效率为41.1%,对比传统燃煤锅加温方式,系统可节约传统能源量折合成标煤5.13t,同时可减少CO_2排放量12.8 t,减少SO_2排放量0.38 t。同时,根据该试验结果对前期系统优化的模拟结果进行了验证,二者满足吻合度要求。该设计为生态温室墙挂式太阳能辅助加温系统的应用推广提供科学依据。
In the north of China, solar greenhouse production needs energy supplemental. Crop growth requires energy supplement. The traditional heating method not only increases the operating cost of agricultural production, but also pollutes the environment. In order to improve this problem, this paper designs a greenhouse solar assisted heating system. This design adopts solar energy collector to collect solar energy, adopts water as a medium to store heat energy, sets heat dissipation pipe in the wall cloth after the greenhouse. According to the indoor and outdoor meteorological conditions to control operation, in order to adjust the temperature indoor microclimate, and create suitable environmental conditions for greenhouse crops growth. The research object of this paper is the heat dissipation part of the solar assisted heating system, which is an experimental analysis of the heating efficiency, thermal efficiency and energy saving and emission reduction efficiency of the rear wall suspended heat pipe. The results showed that the temperature increase system could increase the average temperature of the greenhouse in the sunny conditions by 5.7 and the minimum temperature by 3.7. Under the condition of cloudy days, the average temperature of the temperature room is increased by 3.5. The minimum temperature was increased by 7.1 degrees centigrade. However, the wall hanging heating system has little effect on soil temperature. The working test and data acquisition period of the warmer 4 months in the winter of Shenyang area were selected as the heating system. The working heat efficiency of the wall hanging solar auxiliary heating system was 41.1%. Compared with the traditional heating mode of the traditional coal burning pot, the system can save the traditional energy volume synthesis standard coal 5.13 t and reduce the CO2 emission by 12. 8 T, reduce SO2 emissions by 0.38 t. At the same time, according to the test results, the simulation results of the previous system optimization were verified, and the two met the req
作者
于威
刘艳华
刘文合
赵荣飞
张玉清
YU Wei;LIU Yan-hua;LIU Wen-he;ZHAO Rong-fei;ZHANG Yu-qing(College of Water Conservancy,Shenyang Agricultural University,Shenyang 110161,China)
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2018年第4期480-485,共6页
Journal of Shenyang Agricultural University
基金
辽宁省农业领域青年科技创新人才培养计划项目(2015039)
国家星火计划项目(2013GA650007)
辽宁省教育厅科学研究一般项目(L2015492)
关键词
日光温室
太阳能
墙挂式加温系统
热效率
效益分析
模拟验证
solar greenhouse
solar energy
the Wall Hung Assisted Heating System
thermal efficiency
Benefit analysis
Simulation verification
