在冷水负荷较大的建筑物或设施中，通常在中心位置安装大型制冷设备。此类位置允许使用已确定尺寸的设备，以利用建筑物暴露、占用变化或制造工艺计划可能导致的负载多样性。一个工厂可用于为一栋建筑的一部分、一整栋建筑或几栋建筑提供冷冻水。“大规模”一词具有一定的含义。首先，系统在部件尺寸和点对点尺寸方面都很大。其次，建造、维护或改造此类系统所涉及的成本是巨大的。从第一点可以得出结论，跟踪系统问题是一个复杂的繁琐过程。从第二点可以得出结论，必须非常小心地防止设计阶段出现代价高昂的错误。考虑到这些和其他系统问题，调查人员开始了一个项目，为中央冷冻水系统的设计师、操作员和所有者提供一个工具。 该项目的结果是一个稳态计算机模拟，这是本报告以及其他几名研究生过去八年的论文的主题。

In buildings or facilities with large chilled water cooling loads it is common to locate large-scale refrigerating equipment in central locations. Such locations allow the use of equipment which has been sized to take advantage of load diversity which may be caused by building exposures, occupancy variations, or maufacturing process schedules. One plant may be used to provide chilled water for part of a building, an entire building or several buildings. The words "large-scale" make certain implications.First, the systems are large in terms of component size and point-to-point dimension. Second, the costs involved with building, maintaining, or alterring such systems are large. From the first point one could conclude that tracing system problems is a tedious process with many complications. From the second point one could conclude that great care must be taken to prevent a costly error in the design phase.With these and other system concerns in mind the investigators embarked on a project to provide a tool for the designers, operators, and owners of central chilled water systems. The result of the project is a steady-state computer simulation which is the topic of this report and the theses of several other graduate students over the past eight years.