竖直面上太阳辐射的模拟计算研究

Research on simulated calculation of the vertical plane of solar radiation

以内蒙古呼和浩特、锡林浩特和阿拉善盟3个地区太阳辐照气象参数为基础,选用Klein模型作为竖直面的辐射计算模型,利用Matlab仿真软件对这3个地区-90~90°太阳方位角内竖直面单位面积所接收到太阳辐照量进行模拟计算。研究结果表明:对于内蒙古各地区,太阳能建筑最佳朝向的太阳方位角为-15~15°,在此太阳方位角范围内竖直面上的太阳辐照量较大;内蒙古各地区太阳能利用的最佳时段为冬季和春季,秋季次之,夏季竖直面上的太阳辐照量最小;内蒙古各地区年总太阳辐照量均为4 604 MJ/m2以上,部分地区年总太阳辐照量最高可达5 515 MJ/m2,整体上属于太阳能资源较丰富区,太阳能资源可开发利用的潜能较大。

Based on the solar radiation data in Hohhot, Xilinhot and Alxa League of Inner Mongolia. By the means of Matlab software combined with vertical plane radiation model, simulated calculation of the amount of solar radiation in unit area from different azimuth of vertical plane is conducted. The results show that from the total amount of annual solar radiation, the south-faced surface is the best choice for all the cities in Inner Mongolia. The best azimuth for the utilization of solar radiation in vertical pane of Inner Mongolia region is between -15 °and 15°. Directions of the buildings in Inner Mongolia region can be adjusted within ±15 °for better sunshine. The best use of time in vertical pane of Inner Mongolia region is the winter and spring, then autumn, solar radiation in vertical pane of Inner Mongolia region is the least in summer; annual total solar radiation of Inner Mongolia region can reach more than 4 604 MJ/m2, the highest amount of radiation is up to 5 515 MJ/m2, potential of exploitation and utilization of solar energy resources is great.