|Table of Contents|

Effect of Four Kinds of Thermal Insulation Quilts on the Thermal Insulation of Ningxia Winter Solar Greenhouse

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年14
Page:
66-72
Research Field:
Publishing date:

Info

Title:
Effect of Four Kinds of Thermal Insulation Quilts on the Thermal Insulation of Ningxia Winter Solar Greenhouse
Author(s):
FENG Xue; ZHANG Yahong; FU Yufang; LI Peng; GUO Songtao
(College of Agronomy,Ningxia University,Yinchuan,Ningxia 750021)
Keywords:
thermal insulation quilts; greenhouse; air temperature; soil temperature
PACS:
-
DOI:
10.11937/bfyy.20184325
Abstract:
By choosing PE 4 layers black knitted felt (No.1),PE 3 layers black knitted felt (No.2),aluminized film thermal insulation blanket(No.3) and the common thermal insulation blanket in Ningxia(CK) as the test materials,the effects of four kinds of insulation on the temperature and soil temperature of the solar greenhouse were studied.In order to reduce the heat dissipation of greenhouse and improve greenhouse heat preservation in winter.The results showed that the average night temperature of No.1 insulation was significantly different from CK.On sunny days,the average air temperature on night of No.1 was extremely different from CK.On cloudy days,the average air temperature on night of No.1 was significantly different from other treatments.During the experiment,the average minimum temperature of No.1,No.2,No.3 and CK in extreme weather were 3.7 ℃,3.4 ℃,3.3 ℃,3.1 ℃ and the average duration of less than 5 ℃ were 3.9 h,4.4 h,4.6 h.The energy saving rate were 3%,2%,1%.The average night temperature of each treatment were 14.6 ℃,13.6 ℃,13.0 ℃,12.6 ℃,the average soil temperature at night were 17.5 ℃,16.6 ℃,16.1 ℃,15.6 ℃.No.1 showed good thermal insulation,followed by No.2 and No.3,CK.

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Last Update: 2019-08-12