|Table of Contents|

Test and Performance Analysis of Thermal and Light Environment in Solar Greenhouse With Two Different Wall Structures

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年22
Page:
44-50
Research Field:
Publishing date:

Info

Title:
Test and Performance Analysis of Thermal and Light Environment in Solar Greenhouse With Two Different Wall Structures
Author(s):
HE Fen12SI Changqing3HOU Yong12TIAN Jing12QI Fei12PAN Shoujiang12
(1.Academy of Agricultural Planning and Engineering,Ministry of Agriculture and Rural Affairs,Beijing 100125;2.Key Laboratory of Farm Building in Structure and Intelligent Construction,Ministry of Agriculture and Rural Affairs,Beijing 100125;3.College of Mechanical & Power Engineering,China Three Gorges University,Yichang,Hubei 443002)
Keywords:
solar greenhouseair temperaturesolar radiationthermal and light environment
PACS:
-
DOI:
10.11937/bfyy.20221390
Abstract:
Taking the solar greenhouses with two different wall structures of prefabricated wall and polystyrene brick in Yongqing of Hebei Province as the research object,the environmental performance of the two greenhouses was studied and analyzed through the test of light and heat environment from December to February of the next year,in order to provide reference for the use,management and optimal design of local solar greenhouse.The results showed that the daily average temperature of two types of solar greenhouses was maintained above 11 ℃.The maximum,minimum and average values of the daily average temperature of the prefabricated wall solar greenhouses were 1.20 ℃,2.48 ℃ and 1.90 ℃ higher than the polystyrene brick solar greenhouses respectively.The average values of the daily average temperature at night and the inside and outside temperature difference were 2.64 ℃ and 2.13 ℃ higher than the polystyrene brick solar greenhouses.There were no days with daily minimum temperature 12 ℃ in two kinds of solar greenhouses.The days with daily minimum temperature 5 ℃ and 5-12 ℃ accounted for 1.3% and 98.7% respectively,and the average duration of 5 ℃ was only 1 hour,while the days with daily minimum temperature 5 ℃ and 5-12 ℃ accounted for 55.2% and 44.8% respectively,and the average duration of 5 ℃ was 191 hours.Under the condition of no auxiliary heating in winter,the two kinds of greenhouses can not normally produce fruits and vegetables liking high temperature.The prefabricated wall solar greenhouse had better thermal insulation and resistance to overcast and snow weather than polystyrene brick,and could normally produce leafy vegetables and strawberries.

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Last Update: 2023-01-17