在设计和ASHRAE规范文件中，我们正在努力最大限度地提高建筑暖通空调系统的性能。这意味着要超越设备效率，提高系统的运行效率。这些改进的目标是降低泵和风机的能源使用，优化电厂控制。在对这些运营改进进行建模时，这句话当然适用，“如果你不能衡量它，你就不能计算它。”本文探讨了水侧设计及其对泵送能量的影响。对设计工程师使用的三种主要计算机模拟程序进行了审查，并与实验室测试和建筑数据进行了比较。目前，这些项目都没有为泵送系统运行的改进建模提供方法。本文借鉴了ASHRAE之前关于低三角洲的论文和文章- t和控制阀的选择提供了一种使用模型来衡量系统改进的方法，从而使我们能够计算节省的成本。引文:伊利诺伊州芝加哥ASHRAE会议论文

In designs and ASHRAE code documents, we are now striving to maximize the performance of the building's HVAC systems. This means going beyond equipment efficiency to systems' operational efficiency. The target of these improvements is the lowering of pump and fan energy usage and optimization of plant control. When modeling these operational improvements,the saying certainly applies, "if you can't measure it, you can't count it."In this paper, the author explores water-side design and its' effect on pumping energy. Three of the major computer simulation programs used by design engineers are reviewed and compared with lab tests and building data. None of these programs currently offer a way to model improvements to the pumping system operation. This paper draws from previous ASHRAE papers and articles concerning low delta-t and control valve selection to present a method of using the models to measure system improvement, thus allowing us to count the savings.