Medical

When a cooling tower supporting the HVAC system at NYC Health + Hospitals/Lincoln was nearing its expected end of life, the management of the 362-bed hospital in the South Bronx saw an opportunity. The year before, the neighboring community had experienced outbreaks of Legionnaires’ disease, and even though the hospital’s cooling towers played no role in those outbreaks, the chance to increase protections against possible future exposures of the bacteria that cause the disease was an important consideration.

Penn State Health Milton S. Hershey Medical Center, Hershey Pa., is all about energy and resource efficiencies, which is why it adopted a new approach to managing its chilled water operation. The approach, which revolves around a software and analytics platform used to optimize three chiller plants in addition to various equipment upgrades, has allowed it to save 4.16 GWh/yr in electrical energy consumption – and shave $300,000 off of its annual electrical costs. With an incentive from the local utility of $415,799, the multi-phased initiative achieved a payback of 4.3 years. 
Industrial cooling and refrigeration equipment used in manufacturing and environmental control rely heavily on water to either cool, or otherwise regulate product or formulation temperature during processing. While such equipment can appear to function efficiently without input of truly pure water, the unknown cumulative build-up of scale and corrosion would be costly due to high maintenance, related damage, reduced efficiency, and ultimately, premature equipment failure.
HVAC systems can consume thirty percent (30%) of the total building energy needed in library, student union and classroom facilities.  In laboratory and research facilities, the HVAC energy consumption can be up to sixty percent (60%). When one considers the data of traditional airside Energy Conservation Measures (ECMs), simple paybacks range from low-cost, quick paybacks to capital-intensive long paybacks. The ECMs range from simple strategies, such as night setback and/or supply air reset, to full air handler replacement or variable air volume from constant volume conversion. However, few ECMs deliver more than thirty-five percent (35%) savings for the entire university campus.