日光温室建筑参数的多目标模糊优选

Multi-objective Fuzzy Optimization of Building Parameters of Solar Greenhouse

在日光温室设计中,建筑参数的选择要考虑温室建造成本、室内透光量、保温性能、冬季燃料费用、结构承载力、使用年限、土地利用率等因素。采用多目标模糊决策法对沈阳地区跨度7.5m、后坡长度2.0m、后坡仰角在25°～45°之间变化的不同日光温室建筑参数方案进行了优选。结果显示,围护结构材料相同、建筑参数不同的8个方案中跨度7.5m、后坡长度2.0m、后墙高2.2m、脊高3.7m的温室最优。

Cost and performance of a greenhouse should be considered in determination of building parameters of a solar greenhouse. The method of multi-objective fuzzy optimization was adopted to optimize the building parameters of greenhouses with constant parameters of span 7.5 m, north slope length 2.0 m and north slope angle 25°-45° in Shenyang city. The results show that the optimum building parameters, among the group A with ridge height 3.7 m, north wall height 2.4 m, 2.2 m, 2.0 m and 1.8 m respectively and the group B with north wall height 2.2 m, ridge height 3.3 m, 3.5 m, 3.7 m and 3.9 m respectively, are span 7.5 m, north slope length 2.0 m, north wall height 2.2 m and ridge height 3.7 m.