摘要
对北纬 4 0°水平面东西轴向和南北轴向及倾角与纬度相同朝南放置南北轴向三种不同放置方式单位长度圆柱吸热体真空集热管的日能量收益及其年能量收益变化进行了研究 .结果表明 ,水平面东西轴向和南北轴向的圆柱吸热面真空集热管不论是日能量收益还是年能量收益都小于倾角为 4 0°朝南放置南北轴向的情形 ,特别是南北轴向管冬季能量收益明显要低 .利用水平面太阳能资源的最佳安放方式为东西轴向真空管 .
Daily energy gains and its annual variation of single evacuated collector tube with cylindric absorber are calculated according to the Clear-Day Model,in three different installation on buildings at north latitude 40° and 50°.The solar energy gain of horizontal west-east placed tube,horizontal north-south placed tube comparing with local latitude tilted installed tube.The calculated results show that the best installing is placing the tube as north-south installed with local latitude tilted.Otherwise the horizontal west-east placed tube is better.
出处
《首都师范大学学报（自然科学版）》
2005年第1期43-47,共5页
Journal of Capital Normal University：Natural Science Edition
