WANG Zhao,ZOU Zhirong,CHEN Zhendong.Effect of Underground Ventilation Pipe on Thermal Environment of Solar Greenhouse[J].Northern Horticulture,2017,41(21):79-87.[doi:10.11937/bfyy.20172069]
地中热交换材料对日光温室环境的影响
- Title:
- Effect of Underground Ventilation Pipe on Thermal Environment of Solar Greenhouse
- Keywords:
- thermal insulation; thermal storage; underground ventilation
- 文献标志码:
- A
- 摘要:
- 以不锈钢、HDPE、改良PVC-u材料制成的地中热交换系统为试验材料，与传统的PVC-u（对照）进行对比，研究了4种材料对热交换系统的进口及出口温湿度、不同深度土层温度的影响，以期筛选出一种对温室内环境调节和蓄热性能方面均表现突出的地中热交换系统材料。结果表明：白天不锈钢与改良PVC-u降温性能相近且均优于对照，夜间改良PVC-u保温性能最好；改良PVC-u夜间除湿效果最佳，不锈钢次之；在地下30 cm处，不锈钢组蓄热性能明显优于对照，夜间改良PVC-u组保温性能最佳；在地表20 cm处，晴天，不锈钢组的蓄热性能及改良PVC-u组的保温性能均略优于对照；阴天温度下降阶段，改良PVC-u组的保温性能优势明显；地下10 cm处，4组保温蓄热性能无明显差异。从对温室热环境方面考虑，4组中改良PVC-u性能最佳。
- Abstract:
- In this study,the heat exchange system of stainless steel,HDPE,promoted PVC material were taken as the research object,compared with traditional PVC. Different depth of soil temperature,inlet and outlet temperature and humidity of four systems were analyzed to choose a material that excellent performance in environment control and heat-storaging performance. The results showed that in daytime stainless steel was similar performance to promoted PVC in cooling,and the two groups were better than control group,at night promoted PVC was the best heat insulation;promoted PVC was the best dehumidification at night with stainless steel following; at the depth of 30 cm,stainless steel thermal storage was better than control group,at night promoted PVC was the best heat insulation; at the depth of 20 cm,in sunny days heat storage of stainless steel and heat insulation were better than control group;in cloudy,promoted PVC heat insulation had obvious advantages;at the depth of 10 cm,four groups performance was similar. Consider the greenhouse thermal environment,promoted PVC was the best material.
参考文献/References:
[1]郄丽娟,赵付江,韩晓倩,等.双屋面日光温室的结构设计和温光性能分析[J].中国农学通报,2014(5):145-148.
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备注/Memo
第一作者简介：王昭（1991-），女，辽宁鞍山人，硕士研究生，研究方向为温室环境调控。E-mail：wangzhao9199@126.com.