抛物槽接收器周向热流分布需多分量高斯描述：《科学报告》以10个高斯描述符与6项统计指标选优，11月13日刊出
《科学报告》于2026年11月13日刊出抛物槽式集热器接收器周向热流分布表征研究。论文由Waghmare、Cardona与Pujol-Nadal发表，数字对象标识符为10.1038/s41598-026-79946-5，2026年7月22日收稿、11月4日接受。
研究指出，抛物槽式集热器接收器上的太阳热流高度不均匀，难以用单一数学函数描述。高斯曲线长期用于太阳辐照与光学误差，却很少用于接收器热流。
研究团队为一台改型LS-III抛物槽式集热器建立了系统的高斯表征框架。光谱蒙特卡洛光线追踪生成了热流分布，变量包括与波长无关和与波长相关的材料、日周太阳比、接收器直径、接收器高度与边缘角。
该框架逐个及组合拟合10个高斯描述符，并以6项统计指标选出最佳拟合，同时标记不可识别的拟合。结果显示，单个高斯很少能描述完整分布，通常需要多分量或双区域描述符。研究还指出，跨独立扫描一致的分布不对称性，可量化抛物槽热流分布先升后降的形状特征。
（来源：《科学报告》）
Parabolic Trough Receiver Flux Profiles Need Multi-Component Gaussian Descriptions: Ten Gaussian Descriptors Were Scored With Six Statistical Metrics in Scientific Reports, Published November 13
Scientific Reports published a study characterizing circumferential flux distributions in parabolic trough receivers on November 13, 2026. The paper, by Waghmare, Cardona and Pujol-Nadal, carries digital object identifier 10.1038/s41598-026-79946-5, was received on July 22, 2026 and accepted on November 4, 2026. The study notes that the solar flux on the receiver of a parabolic trough collector is highly non-uniform, which makes it hard to describe with a single mathematical function. Gaussian curves have long been used for solar irradiance and optical errors, but rarely for receiver flux. The team presented a systematic Gaussian characterization framework for circumferential flux distributions on the receiver of a modified LS-III parabolic trough collector. Spectral Monte Carlo ray tracing generated flux profiles for wavelength-independent and wavelength-dependent materials, circumsolar ratio, receiver diameter, receiver height and rim angle. The framework fits ten Gaussian descriptors, both individually and in combination, and selects the best fit using six statistical metrics, while flagging non-identifiable fits. A single Gaussian rarely described the full profile, and multi-component or two-region descriptors were usually needed. A consistent spread asymmetry across independent sweeps quantifies the rise-decline shape of the flux profiles.
(Source: Scientific)
来源：《科学报告》
发布：GSM·美国（发布链接）
图片来源：图：美国加利福尼亚州莫哈韦沙漠一座光伏电站成排的光伏板阵列。Photo by Reegan Moen. U.S. Department of Energy from United States，公共领域，经 Wikimedia Commons。 / Photo: Photo by Reegan Moen. U.S. Department of Energy from United States, public domain, via Wikimedia Commons.
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