New York University Medical Center recently completed a unique chiller interconnection project which will save $575,000/year in energy and operating costs and potentially $3.4 million in avoided future chiller capacity construc­tion.

Using conventional central plant chilled water distribution combined with the technique of connecting individual chiller plants in series flow, a hybrid system was developed for interconnecting the six existing chilled water plants at the New York University Medical Center (NYUMC) in New York City. Motivation for the interconnection was the high utility electric demand charge and the existing mix of steam driven and electric driven chillers at the site. The interconnection, to our knowledge the first of its type, pro· vides both energy dollar savings and an increase in their chiller capacity without the construction of new chiller plants.

Download this article as a PDF