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| 基于内表面对流和辐射换热的温室夜间热平衡分析及验证 |
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张冲1,2, 王传奇1,2, 杨鲁伟1, 张振涛1, 方海龙3, 翟娅萍3
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| (1.中国科学院 理化技术研究所, 北京 100190;2.中国科学院 研究生院, 北京 100049;3.新疆吐鲁番农机推广中心, 新疆 吐鲁番市 838000) |
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| 摘要: |
| 为分析日光温室内部的热环境,运用传热学理论,对夜间温室内存在的对流传热和辐射传热过程进行了研究,并建立温室内部热平衡方程。采用热平衡模型确定冬季温室所需补热量,并评估供暖系统在温室中的实际应用效果。结果表明:室内空气温度的理论值与实测值差别不大,模型比较切合实际。计算结果还揭示了温室内部热流的走向与分布情况,以及围护结构对温室保温所起到的作用。 |
| 关键词: 温室 热平衡模型 热流分析 补热量 |
| DOI：10.11841/j.issn.1007-4333.2013.03.025 |
| 投稿时间：2012-09-26 |
| 基金项目:新疆维吾尔自治区科技支疆项目(201191146) |
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| Thermal equilibrium analysis and verification of heat convection and radiation transfer in greenhouse at night |
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ZHANG Chong1,2, WANG Chuan-qi1,2, YANG Lu-wei1, ZHANG Zhen-tao1, FANG Hai-long3, ZHAI Ya-ping3
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| (1.Technical Institute of Physics and Chemistry Chinese Academy of Sciences, Beijing 100190, China;2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China;3.Agriculture Machinery Center of Turfan, Turfan 838000, China) |
| Abstract: |
| In order to analyze the internal heat environment of solar greenhouse,the heat transfer theories were used to research the heat convection and radiation transfer in greenhouse at night.The greenhouse internal heat equilibrium model was established.This model could be used to calculate the amount of heat needed in winter greenhouses and to evaluate actual application effect of heating system.The study showed the temperature computed was close to the actual degree measured,which meant the equilibrium model could fit the real.The model also displayed the direction and distribution of the heat flux in the greenhouse,and confirmed the role of the palisade structure on greenhouse heat preservation. |
| Key words: greenhouse heat equilibrium model heat flow heat input |
