共查询到19条相似文献,搜索用时 140 毫秒
1.
2.
通过对陕北地区的地理位置、气候变化、太阳能资源分布状况和目前居民住宅居住等条件的调查研究,探讨了在陕北地区实施太阳能建筑一体化的可行性,并对太阳能建筑在陕北地区的推广应用前景进行了分析。 相似文献
3.
杨子江 《四川建筑科学研究》2013,39(3)
根据湖北地区的气候特点和小城镇居住建筑的热环境状况,探讨了居住建筑的朝向、体型、墙体、窗户、阳光间等方面的太阳能利用设计策略,同时给出了太阳能设计改造应用实例. 相似文献
4.
随着人们生活水平的提高,人们对生活用水的需求量越来越大,已占建筑总能耗的15%~20%。陕北地区太阳能资源丰富,利用太阳能供应生活热水,对节约资源、保护环境、提高住宅综合性能具有重要意义。本文根据Klein太阳辐射量的计算方法和Hay太阳辐射量计算模型,计算了府谷、榆林、延安、黄陵四县区的太阳辐射量,并推出各地在方位角为0°时太阳能集热器的最佳安装倾角,供该地区太阳能热利用和光伏发电工程参考。 相似文献
5.
根据湖北地区的气候特点和城乡居住建筑的热环境状况,提出了利用被动式太阳能改善该地区居住建筑室内热环境。探讨了居住建筑的朝向、体型、墙体、窗户、阳光间等方面的太阳能利用设计策略。 相似文献
6.
8.
9.
指出现有太阳高度角和方位角计算公式的使用在建筑物日照分析中存在的不便与不足。构建辐射历计时系统,并重新定义太阳高度角和方位角的取值范围,使其随时角的日变化和年变化具备单值性从而改进了现有计算公式。根据改进后的计算公式绘制不同纬度处太阳高度角和方位角随时角的变化曲线,讨论了这些曲线的数学特征所描述的天文学和地理学现象,验证了改进后公式的正确性和通用性,对建筑、空调、结构设计人员进行建筑日照分析都具有一定的参考价值。 相似文献
10.
11.
12.
13.
以深圳市太阳辐射观测站为参考点,利用珠海地区1981—2010年日照等资料对珠海地区太阳能资源特征进行分析。结果表明,珠海地区太阳能资源分布在全国属于资源丰富、较稳定的地区,且近30年日照相对稳定,太阳直接辐射量占64.53%,质量较好,有利于太阳能资源的开发利用,说明珠海地区太阳能资源条件较好。 相似文献
14.
In this paper, the Genetic Algorithm is applied to calculate the optimum slope and surface azimuth angles for solar collectors to receive maximum solar radiation. An area of Iran is selected to verify the results of this algorithm. The optimum angles and the collector input solar energies for these angles are calculated in hourly, daily, monthly, seasonally and yearly bases respectively. Then, the influence of different combinations of solar radiation components on the optimum slope angle and the energy gain is investigated. The results show that the Genetic Algorithm is a useful technique to find the optimum angles specifically when the number of independent parameters is large. The results show that the daily, monthly and yearly optimum surface azimuth angles for receiving the maximum solar energy are zero. Adjusting the collector at the daily optimum slope angle slightly increases the collector input energy compared with the case of monthly optimum slope angle so that the gain of solar energy is almost the same. The results also show that the hourly optimum surface azimuth angle is not zero and mounting the solar collector at the hourly optimum slope and azimuth angles increases the input energy significantly compared with the case of daily optimum angles. It is shown that the optimum slope angles are mostly dependent on the beam solar radiation. Furthermore, the results indicate that the optimum slope angles of solar collector and Photovoltaic panels are almost the same. 相似文献
15.
Frank Otto 《Bauphysik》2009,31(1):25-37
Influence of solar radiation absorbed by the human body on the thermal sensation of building occupants. One of the key aspects of sustainable building is the well‐being of occupants, which is greatly influenced by indoor climate conditions. Thermal comfort is a vital ingredient of satisfaction with people's surroundings. It is to be expected that solar radiation will have a favourable influence on indoor social areas particularly in the winter months when radiation is predominantly diffuse. In contrast, direct exposure to sunshine in summer or on very sunny days in winter can quickly make people feel uncomfortable near windows and this must be counteracted by appropriate measures to protect them from the sun. The significance of solar radiation for the thermal sensation is illustrated on the basis of a further development of Fanger's approach by means of simulations. The main results are summarised in this article. 相似文献
16.
In any passive solar energy application the orientation of the building is highly significant. An optimum orientation is easy to achieve when the buildings are located relatively far from one another. However, this freedom does not apply in the urban environment. Here, the problem can be reduced to a study of the shading of a vertically positioned rectangle. This paper introduces mathematical formulae to determine the width of the shadow of rectangles with a given exposure and height, at a given distance from one another, during bright periods of sunshine. 相似文献
17.
18.
冻土区路基各表面间太阳辐射的差异引起路基发生横向非均匀变形。目前所采用的基于太阳入射角的分析方法,未能充分考虑到冻土区高路基遮阳效应对周边冻土的影响,特别是在对路基坡脚附近冻土分析时与实际工况存在很大的偏差。基于太阳辐射强度和路基影子轨迹随时间的变化规律,提出利用遮阳理论分析路基表面太阳辐射的分析方法。通过对比K. Y. Kondratyev关于倾斜面接收太阳辐射的描述和工程实测数据,验证遮阳理论分析方法的正确性。基于遮阳理论提出直射率概念,并获得路基表面温度计算的经验方程。分析表明,冻土区路基各表面的太阳辐射之间存在明显的差异,其差异性与路基走向、坡度等影响因素密切相关。对于坡度较大的高路基,路基的遮阳效应也会引起路基周边冻土表面出现明显的非均匀太阳辐射,表现为越靠近路基坡脚辐射量越小,阴坡坡脚处辐射量小于阳坡坡脚处辐射量,这种太阳辐射的非均匀分布在路基的稳定性分析中应予以考虑。 相似文献
19.
节能建筑冬季供暖临界温度 总被引:2,自引:1,他引:2
给出了节能建筑供暖临界温度的计算方法,讨论了日照、建筑节能设计的影响,说明日照率低的地区供暖临界温度偏高,日照率高的地区增大南向窗墙比有利于建筑节能。 相似文献