Study The Performance Of Yulin New Greenhouse In Winter

There are currently prevailing high cost of solar greenhouse wall, land utilization is low,a small space and is not suitable for mechanized operations and other issues. On this basis,designed in accordance with the maximum heat storage in solar greenhouse area and the volume of hot idea theory a dual-roof mounting solar greenhouse. Comparative study of the test the assembled double roof solar greenhouse temperature, light, humidity and other greenhouse basic properties of the structure and performance of the traditional four solar greenhouse. Test Yulin selected the depths of the winter solstice, the typical sunny, cloudy,and typical of this period and test data January 21, 2014, the analysis of the assembled double roof solar greenhouse with traditional four Greenhouses light, temperature and relative humidity difference. The results showed that:1.in the winter solstice, prefabricated sheds new insulation and wall insulation layer +inner solar greenhouse, brick Peisha greenhouse, brick + outer insulation in Greenhouse compared to the average indoor temperature difference + 4.0 ℃, + 2.2 ℃,-1.8 ℃, the average soil temperatures differ + 3.1 ℃, + 1.8 ℃,-1.8 ℃, respectively, the average light intensity difference-3.47%, + 5.28%- 6.67%, the average relative humidity difference of +2.26%-1.51%, + 0.06%.2. in a typical sunny, prefabricated sheds new insulation and wall insulation layer + inner solar greenhouse, brick Peisha greenhouse, brick + outer insulation in Greenhouse difference compared to the average indoor temperatures were + 6.2 ℃, + 3.5 ℃,-2.7 ℃, the average soil temperatures differ + 4.4 ℃, + 3.3 ℃,-1.1 ℃, respectively, the average light intensity difference-2.33%, + 5.22%- 6.65%, the average relative humidity difference of-2.49%,-5.94 %- 2.61%.3.in a typical cloudy, prefabricated sheds new insulation and wall insulation layer + inner solar greenhouse, brick Peisha greenhouse, brick + outer insulation in Greenhouse difference compared to the average indoor temperatures were + 2.9 ℃, + 2.5 ℃,-5.6 ℃, the average soil temperatures differ + 3.8 ℃, + 4.1 ℃,-2.6 ℃, respectively, the average light intensity difference-0.04%, + 6.26%- 7.24%, with an average difference of +0.26% relative humidity- 4.10%, + 3.61%.4.in the depths of Yulin, prefabricated sheds new insulation and brick wall in Greenhouse difference compared to the average indoor air temperature is + 0.1 ℃, the averagetemperature difference between the indoor soil + 1.7 ℃, the average indoor light intensity-5.22%, the average indoor relative humidity- 3.10%;5.January 21, 2014, new insulation fabricated greenhouses as compared with a difference of style walls Greenhouses in Shouguang average temperature-2.0 ℃, the indoor surface at0.15 m soil temperature difference-0.2 ℃.6.fabricated relatively new insulation brick shed Cost Cost in Greenhouse reduced38.68%, compared with Shouguang type soil nailing wall reducing greenhouse cost 9.12%;Prefabricated new insulation brick greenhouse greenhouses land usage is improved land utilization rate 9.17 % compared to Shouguang type soil nailing wall greenhouse land utilization by 44.01%.