斜坡式热气流发电试验模型的设计

The design of slope hot airflow electricity generating system

分析了斜坡式热气流太阳能发电的可行性,介绍了斜坡式热气流发电的组成及基本原理。根据依山而建斜坡式热气流发电系统的思想,设计了一个高4m、宽1.5 m的试验模型。用有机玻璃做透明盖板材料;用铁板代替山体,在其后面设置了用于调控温度的电阻丝700 W/m^2。阐述了确定该试验模型各部分比例和结构参数的依据。对设计的试验模型进行了评价:与传统的塔式发电模型相比,该模型具有集热效率高、造价低的优点。

In this paper, the feasibility of a slope solar energy power plant is discussed. Then, the principle and the composing of the slope hot airflow electricity generating system are introduced. Based on the thought of the slope hot air flow system built on the top of the hill, a 4-meters high and 1.5-meters wide experimental-model is designed. The material of the transparent cover is polymethyl methacrylate （PMMA）, which has a high transmittance. The iron plate is used as the hill body with a line of 700 W resistance wires to control the temperature of the collector. At last, the designed experimental model is evaluated and the comparison between the traditional chimney model and the slope chimney model is made. It shows that this experimental model has the merits of decreasing the cost and enhancing the efficiency of the system.