模拟过程符合能源计算顺序，如图1所示。能源计算中的热负荷和冷负荷部分逐小时确定每个空间的显着和潜在收益或损失。模拟过程接收该信息，并将建筑中所有空间的瞬时热负荷和冷负荷转换为供热和制冷设备的能源需求。模拟部分将其信息提供给经济部分，在经济部分中计算能源量和成本的总和。然后，计算序列返回到下一个小时的天气数据，并重复该循环。ASHRAE建筑能源需求工作组的工作被细分为几个部分，系统和设备小组委员会负责编制一本小册子，为能源计算的部件和系统模拟提供指导。 本手册的最终版本是本文件的第三版，是对之前版本的扩展和完善。本模拟手册的目的是（1）为编制能源计算程序的人员提供指南，以及（2）帮助标准化代表部件和系统性能的程序和方程式。本研讨会论文的功能是概述模拟手册，以便读者能够更好地决定是否深入研究手册中包含的细节。本手册的两个主要部分是（1）部件模拟和（2）系统模拟。第一部分和第二部分将对这些章节进行审查。分别发表在本研讨会论文中。引文:德克萨斯州达拉斯ASHRAE交易会第82卷第1部分研讨会

The simulation process fits into the energy calculation sequence as shown in Fig 1. The heating-and cooling-load section of the energy calculation determines the sensible and latent gains or losses for each space hour-by-hour. The simulation process receives this information and translates the instantaneous heating and cooling loads of all spaces in the building into the energy requirement of the heating and cooling plant(s). The simulation section feeds its information to the economic section where the energy quantities and costs are totaled. The calculation sequence then returns to the weather data for the next hour and repeats the cycle.The work of the ASHRAE Task Group on Energy Requirements for Buildings was subdivided into several sections, and it was the responsibility of the Subcommittee on Systems and Equipment to develop a booklet that provided guidelines for the simulation of components and systems for energy calculations. The final version of this booklet is the third edition of the document and represents expansion and refinement of the preceding editions. The purposes of the simulation booklet are (1) to provide a guide to those preparing energy calculation programs and (2) to aid in standardizing procedures and equations representing component and systems performance.The function of this symposium paper is topresent an overview of the simulation booklet so that the reader could better decide whether to dig deeper into the details included in the booklet. The two main sections of the booklet are (1) Component Simulation and (2) System Simulation. These sections will be reviewed in Parts I and II. respectively, of this symposium paper.