Dataset with transmittance values in solar panel coverings for the components of anisotropic radiation, and power estimations for two locations, three panel inclinations, two sky models, and three sets of covering specifications

This dataset is, or eventually will be, associated with a research paper. The paper proposes a new set of general models for estimating the transmittance in solar panel coverings of the anisotropic component of diffuse radiation, namely, Sky Isotropic, Circumsolar, Horizon Brightening, and Albedo. The Sky Isotropic radiation consists of rays coming (unbiased) from all directions of a virtual dome, the Circumsolar radiation as rays coming from a 25° half-angle spherical cone following the sun, the Horizon Brightening radiation as rays coming from either a flat ring or a 6.5° spherical segment (band) at the horizon, and ground-reflected Albedo as a downward extension of the Sky Isotropic dome. The proposed models are in function of the Beam Incidence Angle (in [rad]), the panel Tilt Angle (in [rad]), the covering Thickness (L in [m]), the covering Refraction Index (n), and the covering Extinction Coefficient (K in [1/m]). Four files are related to these models. The rest of the files correspond to a case study related to the same paper, where detailed calculations are presented for half-hourly time steps throughout the whole 2018 year for two locations (Pittsburgh, United States, and Santa Marta, Colombia), three south-facing panel inclinations (0°, 90°, and counter-latitude), two sky models (HDKR, 1990, and Perez, 1990), and three sets of covering specifications (low range, Default, and high range). Meteorological data were obtained for both locations from The National Solar Radiation Database (NSRDB), which includes values for the Horizontal Global Irradiance, Horizontal Diffuse Irradiance, Ambient Temperature, Relative Humidity, and Wind Speed. The sets of covering specifications were taken from similar studies reporting values that are often used: low range (L: 0.001, K: 4, n: 1.34), Default (L: 0.002, K: 4, n: 1.526), and high range (L: 0.004, K: 32, n: 1.6).本数据集现已或即将关联一篇学术研究论文。该论文提出了一套全新的通用模型，用于估算太阳能电池板盖板对漫辐射各向异性分量的透射率，具体涵盖天空各向同性分量、环太阳分量、地平线增亮分量以及反照率（Albedo）四类辐射。其中，天空各向同性辐射指来自虚拟穹顶所有方向的无偏入射光线；环太阳辐射为紧随太阳、半角宽度25°的球形锥体内的入射光线；地平线增亮辐射为来自地平线处的扁平环带或6.5°球形分段（波段）的入射光线；地面反射反照率则是天空各向同性穹顶向下延伸的辐射分量。所提出的模型以直射入射角（Beam Incidence Angle，单位：弧度[rad]）、电池板倾角（Tilt Angle，单位：弧度[rad]）、盖板厚度（L，单位：米[m]）、盖板折射率（n）以及盖板消光系数（Extinction Coefficient，K，单位：每米[1/m]）为自变量。本数据集共包含4个与上述模型直接相关的文件。剩余文件则对应同篇论文中的一项案例研究：该研究针对美国匹兹堡与哥伦比亚圣玛尔塔两处选址，以半小时为时间步长，对2018年全年开展了详细的辐射计算。研究涉及三类朝南电池板倾角（0°、90°以及反纬度倾角）、两种天空辐射模型（HDKR，1990年；Perez，1990年），以及三组盖板规格参数（低量程、默认值、高量程）。两处选址的气象数据均取自国家太阳能辐射数据库（National Solar Radiation Database, NSRDB），包含水平总辐照度、水平漫辐照度、环境温度、相对湿度以及风速等观测参数。三组盖板规格参数取自过往同类研究中常用的取值：低量程（L: 0.001, K: 4, n: 1.34）、默认值（L: 0.002, K: 4, n: 1.526）以及高量程（L: 0.004, K: 32, n: 1.6）。