您好，欢迎访问西藏自治区农牧科学院 机构知识库！

Evaluation of thermal loss of Chinese solar greenhouse cover under all operating conditions

文献类型： 外文期刊

作者： Luo, Qianliang 1 ; Wang, Jian 1 ; Zhao, Liyang 3 ; Zhao, Shumei 1 ; Wang, Pingzhi 1 ; Liang, Chao 1 ; Zhang, Kai 3 ;

作者机构： 1.China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Agr Engn Struct & Environm, Beijing 100083, Peoples R China

3.Tibet Acad Agr & Anim Husb Sci, Inst Vegetable Sci, Lhasa 850000, Peoples R China

关键词： Chinese solar greenhouse; Greenhouse covering material; Heat transfer coefficient; Heat loss; Model

期刊名称：SOLAR ENERGY （ 影响因子：6.7； 五年影响因子：6.3 ）

ISSN： 0038-092X

年卷期： 2023 年 265 卷

页码：

收录情况： SCI

摘要： The solar greenhouses in China are composed of gables on the east and west sides, north walls, and north and south roofs. The south roof is the main heat dissipation surface of the greenhouse. To quantitatively and comprehensively analyse the heat transfer characteristics and heat loss pathways of the south roof of a solar greenhouse, based on the actual usage of the greenhouse, the heat transfer of the south roof is classified into two working conditions: heat transfer of the transparent covering material (TCM) and heat transfer of the composite thermal insulation coating (CTIC). A theoretical heat transfer model of the covering layer of the solar greenhouse under all working conditions is constructed by applying the heat transfer theory. The model was tested using field test data from two areas different regions in China: Beijing and Lhasa. The results show good agreement between the simulated and measured values, the relative errors between simulated and measured values were 18.54% and 8.17%, respectively, with root mean square errors of 1.69 and 1.92. The model can comprehensively and accurately reflect the comprehensive heat transfer coefficient and heat loss changes of the south roof of the solar greenhouse. It can be used to analyze the proportion of heat loss caused by radiation, convection, and water vapor condensation. The analysis shows that condensation heat loss cannot be ignored during the winter night period. Measures such as covering the roof with plastic film and controlled irrigation can help reduce condensation heat loss.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：西藏自治区农牧科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台