In a chilled-water system, heat that other-wise would be lost to the environment (Figure 1) can be captured and used for other purposes. Although this process, known as heat recovery, is not new, the benefits — decreased energy consumption, reduced greenhouse-gas emissions, more points toward Leadership in Energy and Environmental Design (LEED) certification — have never been greater. This article examines several methods of recovering heat from chilled-water systems, focusing ...

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