Analysis of microclimate characteristics in solar greenhouses under natural ventilation  

作　　者：Yicun Hou Angui Li Yue Li Dacheng Jin Yu Tian Da Zhang Dingmeng Wu Linhua Zhang Wenjun Lei 

机构地区：[1]School of Building Services Science and Engineering,Xi'an University of Architecture and Technology,Xi'an,Shaanxi 710055,China [2]School of Thermal Engineering,Shandong Jianzhu University,Jinan,Shandong 250101,China

出　　处：《Building Simulation》2021年第6期1811-1821,共11页建筑模拟（英文）

基　　金：This paper was supported by the National Natural Science Foundation of China(No.50778145,No.51478377).

摘　　要：The solar greenhouse is a typical greenhouse type in northern China.It provides a favorable environment for the growth of various plants and extends cultivation periods for almost a whole year to achieve a high yield.However,indoor environmental control is primarily based on growers'experience,and the objective test data required for the complex climate control and management of greenhouses are lacking.The present study used three greenhouses in northwest China as research objects:one greenhouse with mature plants(GH-M),one greenhouse with young plants(GH-Y)and one greenhouse without plants(GH-E).Field tests were performed to investigate microclimate characteristics,such as indoor air temperature,relative humidity,and solar radiation under natural ventilation.The results showed that the maximum temperature difference reached approximately 8.2℃in the vertical direction,and semiempirical equations for the normalized temperature distribution were obtained.The soil temperature remained constant at a certain depth(0.4 m).The distribution of the relative humidity and solar radiation was analyzed.The current study is helpful for growers to develop better greenhouse climate control strategies for management practices.

关 键 词：solar greenhouse field tests MICROCLIMATE natural ventilation 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]