日光采集，第一部分：日光采集的介绍

以下译文来自210-边皇栋

AIA/CES Provider Number: 50111167
EE201: Daylight Harvesting, Part 1: Introduction to Daylight Harvesting
Course Number: 000000002011 Educator: Craig DiLouie, LC

AIA/CES提供商编号：50111167,EE201：采光，第1部分：采光简介
课程编号：000000002011教育者：Craig DiLouie，LC

 EDUCATION CREDIT

At the end of this course, participants will be able to complete an online exam, with a passing grade of 70+% to qualify for CALCTP (CALCTP), NLCAA (NLCAA) and LEU (NCQLP) credit and 80+% for LU/HSW hours (AIA/CES). Upon a passing grade, you will be able to download a Certificate of Completion for each type of credits. For CALCTP, NLCAA and LC certification maintenance (LEUs), credits are self-reported. For AIA /CES, Lighting Controls Association will report credit earned for this course to AIA CES.
NO ENDORSEMENT BY ACCREDITING ORGANIZATIONS
This course is registered with CALCTP, NCQLP and AIA CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by these organizations of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

## 教育学分

在本课程结束后，学员将能够完成一个在线考试，CALCTPCALCTP、NLCAA(NLCAA)和LEU(NCQLP)的合格成绩为70+%，LU/HSW学时(AIA/CES)的合格成绩为80％以上。成绩合格后，您将能够下载每种学分的结业证书。对于CALCTP、NLCAA和LC认证维护（LEUs），学分是自报的。对于AIA/CES，照明控制协会将向AIA CES报告本课程的学分。
未经认证机构认可
本课程已在加州理工学院、NCQLP和AIA CES注册，用于继续专业教育。因此，它不包括可能被视为或解释为这些组织对任何施工材料或任何处理、使用、分发或处理任何材料或产品的方法或方式的批准或认可的内容。

## COPYRIGHT

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DISCLAIMER
The information contained in this course has been obtained from sources believed to be reliable. Damages arising from errors, omissions or damages as a result of the use or misuse of the data or information contained in this course are not the responsibility of the Lighting Controls Association, National Electrical Manufacturers Association, ZING Communications, Inc. or their employees or members. All information contained in this course is published for professionals seeking information about the subjects contained therein. It is not the intent of this course provide professional services such as design, engineering or consulting. If these services are sought, they should be rendered by properly trained, registered, regulated and insured professionals.

## 版权声明

本演示文稿受美国和国际版权法保护。未经照明控制协会的书面许可，禁止复制、分发、展示和使用本演示文稿。
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本课程中包含的信息是从被认为可靠的来源获得的。由于使用或误用本课程中包含的数据或信息而导致的错误、遗漏或损害，照明控制协会、美国国家电气制造商协会、ZING通信公司或其员工或会员不承担任何责任。本课程中包含的所有信息是为寻求其中所含主题信息的专业人士而发布的。本课程的目的不是提供专业服务，如设计、工程或咨询。如果需要这些服务，则应由经过适当培训、注册、监管和投保的专业人士提供。

## COURSE DESCRIPTION

Welcome to Part 1 of EE201: Daylight harvesting course, Introduction to Daylight Harvesting. Part 1
introduces participants to daylight harvesting, including typical energy savings, typical equipment, ideal applications and how daylight harvesting relates to LEED and energy codes.
Daylighting, the use of daylight as a primary source of general illumination in a space, has become a more important feature of mainstream construction due to the sustainable design movement.Numerous studies over the last 50 years attest to the importance of daylight in design. Research indicates that daylight can improve user satisfaction/performance and retail sales. These characteristics can make daylighted buildings more valuable and marketable.
Daylighting also enables daylight harvesting, a control strategy that has been demonstrated to generate up to 70 percent lighting energy savings. A daylight harvesting system decreases electric light contribution as daylight contribution increases.
EE201: Daylight Harvesting describes a simple process for design and application of lighting controls used to enact energy-saving daylight harvesting control strategies.

## 课程描述

欢迎学习EE201第1部分：采光课程，日光采伐简介。
第一部分向参与者介绍日光采伐，包括典型的节能、典型设备、理想应用以及日光采伐与LED和能源法规的关系。
第二部分采光，利用日光作为空间中一般照明的主要来源，由于可持续的设计，它已经成为主流建筑的一个更重要的特征移动。很多过去50年的研究证明了日光在设计中的重要性。研究表明，日光可以提高用户满意度/性能和零售额。这些特点可以使采光建筑更具价值和市场价值。
第三部分采光还可以实现采光，这是一种控制策略，已被证明可以节省高达70%的照明能源。日光收集系统随着日光贡献的增加而减少电光贡献。
第四部分 EE201：采光描述了设计和应用照明控制的简单过程，用于制定节能采光控制策略。

LEARNING OBJECTIVES
At the end of the course, participants will be able to:
define the purpose and benefits of daylight harvesting, a lighting control strategy that reduces electric lighting in response to high daylight levels, saving energy. At the end of the course, participants will be able to conceptualize a daylight harvesting strategy.
recognize the elements of a basic daylight harvesting control system, and match daylight harvesting strategies to ideal applications. utilize daylight harvesting conceptually as part of LEED-based design and energy code compliance.
articulate the importance of transparency of automatic control effects, resulting in proper selection of switching or dimming as the system output.

课程结束后，学员将能够：
定义采光的目的和好处，采光是一种照明控制策略，可减少电力照明以应对高日光水平，节约能源。课程结束时，学员将能够概念化采光策略。
认识基本日光采伐控制系统的要素，并将采光策略与理想应用相匹配。将采光作为基于LEED的设计和能源规范合规的一部分，在概念上加以利用。
阐明自动控制效果的透明度的重要性，从而正确选择开关或调光作为系统输出。

DAYLIGHT
Daylight may enter a building via toplighting (e.g., skylight) or sidelighting (e.g., window) apertures. Good daylight design enables diffuse daylight to serve as a primary source of general illumination, while avoiding glare and heat gain.

Image courtesy of Southern California Edison

日光
日光可以通过顶部照明（如天窗）或侧照明（如窗户）的开口进入建筑物。良好的日光设计使漫射日光成为一般照明的主要来源，同时避免眩光和热量增加。
图片由南加州爱迪生提供。

DAYLIGHT VERSUS SUNLIGHT

While daylight is highly desirable in a building as a source of illumination, direct sunlight
generally should not be allowed anywhere in the building except circulation areas (e.g., corridors, atria, etc.). This means daylight itself should be controlled.
Various types of glass, daylighting features such as light shelves, and/or shading can be used to diffuse the light as broadly and uniformly as possible throughout the space.
Top image courtesy of David Weigand

日光与阳光在建筑物中，日光作为照明的来源是非常理想的，而直接的阳光一般不允许在建筑物内的任何地方，除了流通区域（例如走廊、中庭等）。这意味着日光本身应该受到控制。各种类型的玻璃、采光功能（如灯架）和/或阴影可用于尽可能广泛和均匀地在整个空间中散射光。

上图由大卫·韦甘德提供

Daylight control
Automatic window shades, blinds or other devices can dynamically reduce direct glare and heat gain. Using thesame control station, users can override automatic control functions and set both daylight and electric light levels to preference.

Image courtesy of Lutron Electronics

日光控制
自动百叶窗、百叶窗或其他设备可以动态地减少直接眩光和热增量。使用同一个控制站，用户可以覆盖自动控制功能，并将日光和电灯的亮度设置为首选。

Lutron Electronics提供

DESIGNING FOR DAYLIGHTING
Daylight should be provided where people need it most. Since daylight often does not enter the space uniformly,
however, visualize it as gradients in a pattern, with each gradient representing an area of consistent daylight availability. Each of these areas in turn presents an opportunity to separately zone the general lighting for daylight harvesting.
This may require designing lighting circuits to support separate control of general lighting, such as separately circuiting the first one or two rows of light fixtures parallel to daylighting windows.
Image courtesy of the New Buildings Institute

应该在人们最需要的地方提供日光。由于日光通常不会均匀地进入空间，但是，将其视为模式中的渐变，每个渐变表示一致的日光可用性区域。这些区域中的每一个区域都提供了一个单独分区采光的机会。这可能需要设计照明电路，以支持对一般照明的单独控制，例如将第一排或两排平行于采光窗的灯具单独回路。
图片由新建筑协会提供

DESIGNING FOR DAYLIGHTING

Daylight should be provided where people need it most. Since daylight oftendoes not enter the space uniformly, however, visualize it as gradients in a pattern, with each gradient representing an area of consistent daylight availability.Each of these areas in turn presents an opportunity to separately zone the general lighting for daylight harvesting.
This may require designing lighting circuits to support separate control of general lighting, such as separately circuiting the first one or two rows of light fixtures parallel to daylighting windows.Image courtesy of Leviton

光设计
应该在人们最需要的地方提供日光。因为白天经常不会均匀地进入空间，但是，将其视为图案中的渐变，每个渐变表示一致的日光可用性区域。这些区域中的每一个区域都提供了一个单独分区采光的机会。这可能需要设计照明电路，以支持对一般照明的单独控制，例如将第一排或两排平行于采光窗的灯具单独回路。
图片由Leviton提供
5

DAYLIGHT HARVESTING
Energy savings occur by automatically switching the lights OFF or proportionally reducing electric light levels continuously (dimming) in response to variable daylight levels.
Image courtesy of the Lighting Design Lab

采光通过自动关闭灯或根据不同的日光水平持续（调暗）按比例降低电灯水平，从而实现节能。
图片由照明设计实验室提供

DAYLIGHT AVAILABILITY
The energy savings potential for daylight harvesting in a given application will depend largely ondaylight availability, including:
1)daylight penetration into the space--in other words, how much of the task area receives daylight;
2)quantity of daylight in the space--in other words, what is the density of illumination on the task area in footcandles; and
3)duration of daylight availability during the day--that is, for how long each day the task area receives high, consistent enough daylight levels to warrant daylight harvesting control.

白天可用性
在给定的应用中，采光的节能潜力在很大程度上取决于日光可用性，包括：
1）日光穿透空间——换言之，工作区域有多少地方能接收到日光；
2）空间中的日光量——换句话说，任务区的照明密度是多少（单位：英尺烛光）；以及
3）白天的持续时间——也就是说，任务区域每天接收到的高、一致的日光水平足以保证采光控制的时间。

==TYPICAL SYSTEM

    ==

Automatic daylight harvesting control systems are comprised of a photosensor that
measures light levels and shares this information with a controller, which decides, using its algorithm, whether the lighting load should be switched or dimmed. In some cases, the ballast and the controller may be the same unit.
Image courtesy of David Weigand

## 典型系统

自动采光控制系统由一个光传感器组成
测量光照水平并与控制器共享此信息，控制器使用其算法来决定照明负载是应切换还是应调暗。在某些情况下，镇流器和控制器可能是同一个单元。

图片由David Weigand提供

TRANSPARENCY IS ESSENTIAL

Effective daylight harvesting should be transparent to occupants in the controlled space. It should offer energy savings with no adverse effects to visual comfort. Lights should change levels without distracting occupants. Dimming is typically preferred by occupants, particularly in spaces where users perform stationary, critical tasks and/or where lamps are visible in the normal field of view, because it is not as noticeable as switching. In addition, dimming may occur gradually over a period of several minutes to virtually make the change in light level unnoticeable.
Image courtesy of David Weigand

透明度至关重要
有效采光应对受控空间内的居住者透明。它应该在不影响视觉舒适性的情况下节省能源。灯光应在不分散乘客注意力的情况下改变亮度。调光通常是居住者的首选，尤其是在用户执行固定的关键任务和/或在正常视野中可以看到灯的空间，因为调光不如开关那么明显。此外，调光可能会在几分钟内逐渐发生，从而使光照水平的变化变得不明显。
图片由David Weigand提供

## IDEAL APPLICATIONS

Daylight harvesting controls can be effective in virtually any type of facility where
the lights operate much of the time and where ample daylight is present.
Spaces with skylights and corridors, private offices and open cubicles near windows—particularly those with task lighting—are good candidates for daylight harvesting.
Image courtesy of the California Lighting Technology Center

## 理想应用

采光控制可以在几乎任何类型的设施中有效
在白天充足的地方，电灯大部分时间都能工作。有天窗和走廊的空间、私人办公室和靠近窗户的开放式隔间，特别是那些有任务照明的地方，是采光的好选择。
图片由加州照明技术中心提供

IDEAL APPLICATIONS
If the entire space is uniformly skylighted (as in the skylighted space shown here, with properly spaced skylights covering about 3-5 percent of the floor area), energy savings can accrue on the entire lighting load. More commonly, daylight harvesting applies only to the perimeter zone of a windowed installation, where typically general lighting within two window heights (distance from floor to top of window) deep into the space is suitable for daylight harvesting.
Image courtesy of LC&D.

理想应用
如果整个空间都是统一的天窗（如此处所示的天窗空间，适当间距的天窗覆盖了约3-5%的建筑面积），则整个照明负荷可以节省能源。更常见的是，采光仅适用于带窗装置的周边区域，在该区域，通常两个窗户高度（从地板到窗户顶部的距离）内的一般照明适合采光。
图片由LC&D提供

ENERGY SAVINGS

The amount of energy cost savings a daylight harvesting control system can yield is variable, dependent on anumber of factors such as daylight availability, but research suggests significant savings in common commercial applications.
节能
日光采伐控制系统所能节省的能源成本是可变的，取决于
日光可用性等因素的数量，但研究表明，在常见的商业应用中可以显著节省成本

DAYLIGHT HARVESTING AND LEED
The Leadership in Energy and Environmental Design (LEED) 2009 green building rating system encourages daylight and daylight harvesting. IEQ, Credit 8.1 awards 1 LEED point for introducing at least 25 footcandles of daylight into at least 75% of regularly occupied building areas, while IEQ, Credit 8.2 awards 1 point for providing a direct line of sight to perimeter glazing in at least 90% of regularly occupied spaces.

Daylight harvesting controls can then be used to earn energy points and/or, if registering under LEED for Commercial Interiors, 2 LEED points by introducing daylight harvesting controls in all regularly occupied daylighted areas (for 1 point) and/or on 50% of the lighting load (for an additional 1 point). All daylight harvesting controls must be commissioned (prerequisite), with enhanced commissioning worth 2 LEED points.
Image courtesy of U.S. Green Buildings Council

采光与LEED
能源和环境设计（LEED）2009绿色建筑评级系统的领导地位鼓励采光和采光。IEQ 8.1信用等级授予1个LEED分数，因为在至少75%的常规占用建筑区域引入了至少25英尺烛光的日光，而IEQ 8.2信用等级授予1分，因为在至少90%的常规占用空间内提供了周边玻璃的直接视线。 采光控制可用于获得能量点和/或，如果在商业室内的LEED下注册，则通过在所有经常占用的采光区域（1点）和/或50%的照明负载（额外1点）引入采光控制，获得2个LEED点。所有采光控制装置必须进行调试（先决条件），增强调试值为2个LEED点。
图片由美国绿色建筑委员会提供
File:2145.png

DAYLIGHT HARVESTING AND ENERGY CODES
Because of the strong energy savings potential offered by daylight harvesting, coupled with advancing technology, codes and standards are now beginning to require daylight harvesting—specifically, International Energy Conservation Code (IECC) 2009, ASHRAE/IES 90.1-2010, ASHRAE
189.1 and Title 24-2008.

采光与能源法规
由于日光采伐具有强大的节能潜力，再加上先进的技术，规范和标准现在开始特别要求采光，国际节能规范（IECC）2009，ASHRAE/IES 90.1-2010，ASHRAE189.1和第24-2008编

DAYLIGHT HARVESTING AND ENERGY CODES
All of these codes and standards are different in the particulars, and yet have similar major themes. First, they define daylight availability as zones around daylight apertures. Second, they require separate control for general lighting in these zones.

采光与能源法规
所有这些规范和标准在细节上各不相同，但有着相似的主题。首先，他们将日光可用性定义为采光孔周围的区域。第二，它们需要单独控制这些区域的一般照明。

DAYLIGHT HARVESTING AND ENERGY CODES

The standard may also specify whether the control must be manual or automatic, switching or dimming, stepped switching or simple ON/OFF. And the standard may reward aggressive daylight harvesting with power adjustment credits that can be used to increase the lighting power density (expressed in watts/square foot) for the controlled load above what is normally allowed by code, offering greater design flexibility.
采光与能源法规
该标准还可规定控制必须是手动还是自动、切换还是调光、分级切换还是简单的开/关。该标准可能会奖励积极的采光与功率调整信用，可用于增加照明功率密度（以瓦特/平方英尺表示）的控制负荷超过规范通常允许的范围，提供更大的设计灵活性。

YOU'RE FINISHED
This concludes The American Institute of Architects Continuing Education Systems Course Daylight Harvesting, Part 1: Introduction to Daylight Harvesting.

Please take a moment to provide feedback about your experience with this course.

You may also take the Comprehension Test to test your learning and to qualify for CALCTP (CALCTP), LEU (NCQLP LC) and LU/HSW (AIA CES) credit. A 70+% passing grade is required for LEU and CALCTP credit and 80+% for AIA CES credit. Upon passing the test, you may download a Certificate of Completion on the Courses page. If you are an AIA member, please email your course completion certificate to LCA with your AIA number.

EE201: Daylight Harvesting - Introduction to Daylight Harvesting

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EE201：采光-采光简介