包括为两种类型的空间调节系统（屋顶单元和直接膨胀系统）改装蓄冷。在这些情况下，冷藏意味着使用冰作为储存介质，因此得出结论，冷冻水储存是不可行的。关键词:空调、储能、冰、冷源、现代化、屋顶安装、直接膨胀制冷、负荷管理、经济性、回收期、成本、冷冻水供应。引用:研讨会论文，佐治亚州亚特兰大，1990年

Covers retrofitting cool storage to two types of space-conditioning systems, rooftop units and direct expansion systems. Cool storage in these cases implies the use of ice as a storage medium, it was concluded that chilled water storage was not feasible.KEYWORDS: air conditioning, energy storage, ice, cold sources, modernising, roof mounted, direct expansion refrigeration, load management, economics, payback period, costs, chilled water supply.