公路隧道光导照明系统研究

以南宁市凤岭南隧道为例,开展公路隧道光导照明系统研究,提出一种针对隧道24h照明的节能解决方案,白天利用光导照明系统,夜间利用LED照明。     

LED照明示范工程建设——重庆市科技服务大厦夜景照明设计

简要介绍了重庆市第一个LED城市夜景照明示范项目,设计充分利用了LED体积小、响应快、色彩丰富等特点,通过对一套自主研发的、基于RS-485总线技术的LED智能控制系统的运用,在建筑外立面上通过LED的排列,形成了可随季节、时间变化的大型夜景画面,实现了对大型夜景画面的自由编辑和精确控制。大大提高了系统的稳定性,延长了LED光源的寿命。在工程中还开发出了新的LED灯具产品,有力地带动了本地LED产业的发展。     

光源光色对隧道照明效果的影响

为了研究隧道照明中光源的光色,在3种照明水平和负对比条件下,比较了5种色温的LED光源与传统照明光源高压钠灯(HPS)、金卤灯(MH)对隧道照明效果的影响。通过反应时间实验方法,分析了光源光色分别与反应时间和人眼瞳孔大小之间的变化关系。实验结果显示,在高照明水平下,高色温LED光源的视觉功效最高,光生物效应最显著;而在中间视觉照明水平下,中间色温的LED光源的视觉功效和光生物效应最显著。合理选择适用隧道照明各区段的光源应考虑光源光色对视觉功效和光生物效应的综合影响,并值得进一步研究。     

An ANN-based model for the prediction of internal lighting conditions and user actions in non-residential buildings

This paper presents an Artificial Neural Network (ANN) based approach able to predict the internal lighting conditions in a working environment, taking into account the daylight entering the respective space as well as the special requirements of each user. The model training procedure is based both on real illuminance and occupancy data (measurements throughout a year) and on simulations, in order to integrate all possible conditions. User preferences in respect to lighting and blinds are expressed through probability curves. Illuminance due to the external daylight is calculated and predicted throughout the whole year, depending on the weather conditions, the time of the day, the location and the office orientation. The work plane distance from the window and the usage of blinds are also considered. The proposed model is further implemented for the prediction and evaluation of energy consumption for lighting in a working space based on the user preferences.     

HDL智能照明控制系统在宁波文化广场项目的智能化应用

本文所介绍的智能照明控制系统融合了智能照明系统、舞台灯光系统、背景音乐系统、LED球幕系统等多项子系统．由一个总控制中心和四个分控制中心组成总一分控制结构。实现了快速便捷的集中和独立控制,提高了管理效率,达到了绿色节能、安全高效、便捷舒适的建设目标。     

民用建筑中LED照明的应用研究

通过对LED电光源的技术性能指标、光谱特性、电气特性等参数进行深入的系统分析研究,科学客观地评价LED照明的优势和缺点,探讨LED照明在民用建筑中使用的注意事项,以及LED灯具在不同民用建筑场合的适用性;在综合考虑照明效果、节能环保、成本节约及对人体健康和环境影响等众多因素的前提下,初步形成在民用建筑领域中LED照明光源的选择方法。     

自然光光导照明在建筑采光中的应用

介绍了自然光光导照明系统的原理与结构,包括采光装置、导光装置、漫射装置的工作原理、外观样式、材料性能要求、特性曲线等,阐述了国内外自然光光导照明在建筑采光中的应用场所和生产企业。通过分析比较自然光光导照明相对于侧窗采光、天窗以及电力照明的照明效果,说明自然光光导照明在建筑采光中的应用与前景。     

隧道入口段复合照明节能试验研究

在隧道照明领域,自然光是一把双刃剑,一方面可以提高隧道内亮度,另一方面也可引起“白洞”效应,威胁车辆行驶安全。充分利用自然光对隧道照明的增效作用,降低人工照明的能耗,是实现隧道入口段照明节能的有效途径之一。结合云南保腾高速公路鹿山隧道内自然光、以及自然光与LED灯复合照明下隧道不同纵深路面照度的实测数据,通过与规范规定值的对比分析研究,得到了隧道入口段各区段自然光、LED灯复合照明下隧道照度分布规律,并对节能效果进行了评价。为今后进一步合理利用自然光、人工光源进行隧道复合照明节能研究提供参考。     

实现LED灯光控制的开放式通信系统解决方案

本文简要介绍了实现LED灯光控制的开放式通信系统解决方案,采用基于DMX512协议的灯光控制系统和基于数据网络的SPI串行通信控制系统。     

Lighting energy savings in offices using different control systems and their real consumption

This paper compares the potential of lighting energy savings in office rooms by using different control systems, for three locations in Europe and the four main orientations. The method is based on DAYSIM simulations to perform daylight calculations, on laboratory measurement to evaluate precise system energy consumptions and on the implementation of a new algorithm to simulate a close-loop daylight dimming system. It appears that the control of the electrical power in function of daylight leads to very high savings; they slightly depend on the room orientation and the location. Savings vary from 45 to 61%. The performances of an occupancy sensor are also tested. Threshold values of occupancy rate for which daylight dimming leads to higher gains than an occupancy control system vary between 27 and 44% depending on location and orientation. The measurements of the energy consumption of the sensors and detectors also permit to conclude that systems with embedded DALI-compatible ballast controllers should be abandoned in favour of a centralized DALI-compatible ballast controller or embedded analogue systems.     

办公空间中智能照明控制系统的应用

为了减少照明系统的电力消耗.最基本的方式是提高光源效率及照明附件的能效,这种方法现今发展已较为成熟,成本较低.如果要进一步提高人工照明效率,则需要配合使用适当的控制系统,充分利用“免费”的自然光,减少人为浪费,从而达到节能目的并介绍了智能控制系统在荧光灯照明的办公空间中的应用.     

LED蓝光能量分析

对LED 光源发出光的光谱分布规律进行积分计算以评估LED 照明光源的蓝光能量比例,确定其光电转换规律。依据 IEC 62471：2006 Photobiological safety of lamps and lamp systems 对蓝光波长的划分,对380~500 nm波段的光谱能量进行积分计算,确定这部分光能量占可见光能量的比例。通过两个比例,换算出蓝光占照明光源输入能量的比例。最终依据GB 50034-2013《建筑照明设计标准》中对各类场所照度标准核定其安全范围。分别对国外和国内300余例LED照明光源的光谱曲线进行蓝光能量分析,并与常用典型电光源（如荧光灯、金卤灯）的蓝光能量进行对比,得出LED 光源蓝光能量低于常用典型电光源,作为普通照明安全的结论。     

双层玻璃幕墙的自然采光及照明系统节能研究

自然光通过双层玻璃幕墙后其照度显著下降,透光率仅为10%~20%,在减少空调系统能耗时却影响了自然采光。通过室内自然光的照度测量发现,自然光照度在室内随纵深呈指数形式递减,在晴天和全阴天时距玻璃幕墙较近的位置(玻璃幕墙到1/2纵深)照度值都是高于500 lux的,而在3/4纵深后的工作面照度低于300 lux,室内可以采用部分自然光照明。结合建筑照明平面图,采取优化灯具控制回路开关设置的方法提高自然光利用率时,照明系统能耗将降低50%;采用主动式的采光设计,利用自然光时则照明系统将节能75%以上。     

江南水乡风貌的照明设计要点分析

针对江南水乡这一独特地域风貌进行夜间照明设计分析,围绕照度水平、光源色温与照明方式这三个要点进行阐述,分别根据现状发现问题并提出控制依据。     

广州轨道交通照明节能设计探讨

针对轨道交通车站提出照明节能措施及具体方案;通过LED灯具在广州轨道交通的试用情况及实测数据,提出如何在车站中合理使用LED灯具,达到既保证较好的照明功能又有显著节能效果的目标;通过方案比选提出在车站中采用智能照明控制系统,以实现灵活实用的照明节能模式。     

Exergy analysis for day lighting, electric lighting and space cooling systems for a room space in a tropical climate

Turning off the electric lamp during available daylight will save electricity, while at the same time thermal energy from solar radiation transmitted through the window will increase the space-cooling load. Therefore, it is necessary to evaluate the whole system that includes not only the room space with the windows and the electric lighting systems, but also the air conditioning system. For analysis of the whole system using different types of energy (i.e. electricity, solar radiation, light emitted by lamps and thermal energy), it is important to take into account the quality of these different types of energy. The concept of entropy and exergy were applied in this analysis. The purpose of this study is to show the energy use for daylighting, electric lighting, and space cooling systems as a series of exergy input, output, and consumption and reveal how a daylighting system consumes solar exergy and how electric lighting and space cooling systems consume exergy from fossil fuel. The methodology to calculate the exergy consumption of the system during a given time was developed first. This method was then applied to the lighting and cooling for a typical room. The study found that electric lighting consumes the lowest amount of exergy while the space cooling consumes the highest amount of exergy for the system.     

LED照明技术应用现状与发展趋势

综述美国、欧洲、日韩等国LED照明技术发展及应用现状,对LED照明的关键技术,以及LED光源的光学特性、散热问题、电源驱动和灯具配光等进行分析,探讨LED照明在未来的发展趋势。     

《广州城市照明系统规划》的编制方法及研究

<广州城市照明系统规划>的目标是:控制不利的、破坏性的照明,促进有利的、建设性的照明,引导形成广州完整的城市夜景照明系统.规划根据城市土地利用和景观规划划分七类控制区,依据光色分布的一般规律进行光色分区,依据灯光环境气氛分布的一般规律划分四个分区,并选择照度、光色、光源与灯具选择、照明方式、灯具布置等为主要控制指标.     

Lichttechnisches und energetisches Verhalten von Fassaden moderner Verwaltungsbauten – Teil 1: Lichttechnisches Verhalten

Daylight and thermal energy performance of facades in office buildings, Part 1: Daylight performance. Regarding the impact on indoor illumination facade systems have to provide an appropriate visual indoor environment. In addition daylight penetrating the room through the facades should favourably influence the overall building energy balance. Daylight utilization can directly reduce energy consumption for electric lighting and can indirectly – due to the higher luminous efficacy of daylight compared to commonly used artificial lighting systems – reduce the thermal loads within the conditioned building spaces. In part 1 of this contribution the influence of different facade solutions on room illumination is systematically investigated by means of a parametric study of significant room, outdoor, environmental and climatic parameters for ten facade systems. The facade systems considered are conventional, permanently shaded, and light redirecting systems. The analysis of system performance is based on newly developed characteristics which allow the analysis and optimization of different facade systems under working conditions. Part 2 of the contribution shows the energetic interaction of the facade dependent internal loads by artificial lighting system and solar heat gains.     

LED在南极科学考察站室外照明的应用

本文通过对我国南极科学考察站室外照明系统的需求调研分析，介绍了LED在科考站室夕h照明的应用，并在环境适应性、能耗、光环境、维护、照明控制等方面与其他光源进行了比较，探讨了LED在特定领域中的优势。