ZHU Chao,SUN Yachen,HE Bin,et al.Analysis of Performance for Back Wall of Initiative Heat Storage of Solidified Sand on Solar Greenhouse[J].Northern Horticulture,2017,41(09):46-52.[doi:10.11937/bfyy.201709010]
固化沙主动蓄热后墙日光温室的性能分析
- Title:
- Analysis of Performance for Back Wall of Initiative Heat Storage of Solidified Sand on Solar Greenhouse
- 文献标志码:
- A
- 摘要:
- 我国西北地区地域广阔，沙土资源丰富，该试验设计了一种新型日光温室后墙结构，以固化沙为温室的主要墙体材料，墙体中分层安装有带通道的混凝土预制板，白天通过风机将温室内热空气主动蓄积到墙体内，夜晚将墙体内热空气主动释放到温室内，从而增强温室的保温性能，并对其温光性能进行了试验分析。选取冬季典型晴天（2016-01-24、2016-02-10）、阴天（2016-01-16、2016-02-20）和雪天（2015-12-11）的试验数据，分析了固化沙主动蓄热后墙日光温室与普通苯板砖墙日光温室室内光照度、温度及墙体内部温度的差别。结果表明：固化沙主动蓄热后墙日光温室与普通苯板砖墙日光温室相比，光照度没有明显差异；室内平均温度在典型晴天提高了1.7 ℃，典型阴天提高了2.5 ℃，典型雪天提高了2.4 ℃。固化沙主动蓄热后墙日光温室墙体内部温度恒定区域处于740～1 000 mm、蓄热层厚度超过740 mm，其中固化沙蓄热厚度超过了620 mm、蓄热层厚度和蓄热能力均大于普通苯板砖墙，表明该温室具有良好的保温效果，适合进一步在西北多沙土地区推广。
- Abstract:
- The northwest of China area is vast and sandy soil resources are rich.A kind of initiative heat storage of solidified sand back wall solar greenhouse was designed in this study.Concrete precast slabs with channels were stored inside the wall at different layers.During daytime,the hot air in the greenhouse was positively stored in the wall with fans.In this way,during night time,the stored heat could be actively released into the greenhouses,thereby improving the temperature.Data from typical winter sunny days,cloudy days and snowy days were selected.The differences of inner greenhouse photometric quantity,temperature and inner wall temperature were analyzed between solidified sand heat storage walls and regular benzene plate brick walls.Compared with greenhouses with regular benzene plate brick walls,in greenhouses with solidified sand heat storage walls,no significant photometric quantity differences were observed.For the average inner temperature,the temperature increased 1.7,2.5,2.4 ℃,respectively,during typical winter sunny days(January 24th,2016),cloudy days(January 16th,2016) and snow days(December 11th,2015).The constant inner temperature regions in solidified sand heat storage walls ranged from 740 mm to 1 000 mm.Among these,the heat storage thickness exceeded 740 mm and the solidified sand heat storage wall thickness exceeded 620 mm.The overall heat storage thickness and capacity both exceeded that of regular benzene plate brick walls.These results showed that this new greenhouse had a very good thermal insulation effects and were suitable for further applications in non-cultivated land area of northwest of China.
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备注/Memo
第一作者简介：朱超（1992-），男，硕士研究生，研究方向为农业生物环境与能源工程。E-mail:zhuchaochaoer@163.com.责任作者：邹志荣（1956-），男，教授，博士生导师，研究方向为设施园艺。E-mail:zouzhirong2005@163.com.基金项目：公益性行业（农业）科研专项资助项目（201203002）；国家“863”计划资助项目（2013AA102407）；陕西省农业科技创新与攻关资助项目（2015NY055）。