The Brooklyn Hospital Center
The Brooklyn Hospital Center is Brooklyn’s oldest hospital, currently serving more than 300,000 patients each year.
The hospital had one 900-ton electric chiller located on the penthouse level as well as three 250-ton absorption chillers in the basement that were nearing the end of their useful lives. The hospital administration wanted to find a reliable solution to replace the absorbers that would create redundancy in case of equipment failure and achieve cost savings at the same time.
In devising a solution, Ecosystem not only considered equipment issues but also looked at the entire water and distribution system. Ultimately, a new location for the equipment was chosen that improved the efficiency of chilled water production. The improved chiller system integrated two forms of technology—a 200-ton absorption chiller powered by steam and a 1000-ton dual compressor electric chiller with variable frequency drives—offering redundancy not only in terms of equipment but also in terms of energy source. The work was performed in a short timeframe in the colder months to avoid any changes in comfort levels for the patients and staff. The project even benefited from $64,000 in incentives, far above the $25,000 that was originally guaranteed in the proposal.
The new chiller design not only generates savings through energy efficiency and enhanced operating performance, it also opens possibilities for future improvement because the chiller system was designed with future needs and upgrades in mind. It will be able to accommodate new projects, including a steam-to-hot-water conversion or cogeneration or even eventual hospital expansion.
Customized Performance Measures
- Replacement of two chillers
- Optimization of the chilled water network