本研究的目的是开发一种简单的方法，用于计算受采光影响的建筑物中使用的年照明、制冷和加热能量。它旨在供工程师和建筑师在早期建筑设计阶段使用，以对开窗做出初步决定，或评估现有组件的变化，如玻璃或采光控制。对于窗口大小、窗口传输和方向等问题，需要定量而非定性的信息，而无需诉诸冗长的手工计算或计算机程序。 此外，人们认为，由于采光和窗户的热效应而产生的节约应该整合到一个单一的年度能源成本数字中。几个目标有助于形成最终的程序。该算法应该简单，涉及最少的手工计算，并易于诺模图处理。该方法应基于ASHRAE和IES的计算技术，以最小化任何相关的不确定性。该技术应考虑多种开窗方案，以便广泛应用并鼓励创新。 虽然该程序是为办公楼量身定制的，但大多数其他类型的建筑只需稍加修改即可进行分析。据信，本文报告的方法对实现这些目标有很大帮助。算法有完整的文档记录，所有组件都可以检查。据认为，这种明确性将提高算法被接受的可能性，增加其作为教育工具的实用性，并允许未来对程序进行更改。在本报告中，该程序如图1所示（表2、图2和图3），并进行了描述，首先是概述，然后是步骤- 一步一步。讨论了“第一原则”方法。在“相关输出”中，描述了资本成本分析、用BASIC编写的计算机程序和列线图处理。图7、8和9显示了使用该程序获得的几个结果示例。附录1中给出了使用该算法的说明，该算法的关键是步长和输入数字。附录2给出了所有算法步骤和输入的理由。为了简化程序，进行了一些假设和近似。相信这些都是合理的，并且接近实际的做法。 对这些假设进行了讨论，并对方法进行了修改，以适应任何特殊情况的需要。

The object of this study was the development of a simple method for the calculation of the annual lighting, cooling and heating energy used in a building as affected by daylighting. It is intended for use by engineers and architects in an early building design stage to make preliminary decisions on fenestration, or for evaluation of changes to existing components, such as glazing or daylighting controls.A need exists for quantitative, rather than qualitative, information on issues such as window size, window transmission and orientation, without resorting to lengthy hand calculations or computer programs. Further, it is believed that savings due to daylighting and thermal effects of windows should be integrated into a single annual energy cost figure.Several goals helped shape the resulting procedure. The algorithm should be simple, involve a minimum of hand calculation, and be susceptible to nomograph treatment. The approach should be based on calculation techniques, as from ASHRAE and IES, in order to minimize any associated uncertainty. The technique should allow consideration of a wide variety of fenestration options, so as to apply widely and encourage innovation. While the procedure is tailored for use with office buildings, most other types of buildings can be analyzed with only slight modifications, if any.It is believed that the methodology reported here goes a long way to meet these goals. The algorithm is fully documented and all components are open to inspection. It was thought that this explicitness would enhance the likelihood of acceptance of the algorithm, increase its usefulness as an educational tool, and allow future changes in the procedure.In this report, the procedure is shown in Fig. 1 (with Table 2 and Figures 2 and 3) and described, first in general terms, then step-by-step. The "First Principles" approach is discussed. In "Related Output" a capital cost analysis, computer program written in BASIC, and nomogram treatment are described. Several examples of results obtained by using the procedure are shown in Figures 7, 8 and 9. Directions for using the algorithm, keyed to step and input numbers, are given in Appendix 1. Justification for all algorithm steps and inputs are given in Appendix 2.In order to simplify the procedure, a number of assumptions and approximations are made. It is believed that these are reasonable, and approximate actual practice. The assumptions are discussed and the methodology is such that most can be modified to suit the needs of any special case.