Case Study

Robert Wood Johnson
University Hospital




Robert Wood Johnson University Hospital
Rahway, NJ


Client: Robert Wood Johnson University Hospital

Description: Chiller Plant & Lighting Upgrades

Year Completed: 2015

Construction Cost: $3 Million


ABOUT THE CLIENT

The Robert Wood Johnson University Hospital is the principal teaching hospital for the University Medicine and Dentistry’s Medical School. Founded in 1884, the hospital has made much progress earning numerous awards and significant recognition including being ranked in “America’s Best Hospitals” for four consecutive years by U.S. News and World Reports.

TWO-PHASE CONSTRUCTION

Concord Engineering provided project management, energy auditing, design engineering and construction administration services for Robert Wood Johnson University Hospital’s Rahway Campus in Rahway, NJ as part of the PSE&G Hospital Carbon Abatement Program. Concord Engineering’s staff worked diligently along with RWJ’s management and PSEG’s program manager to develop the most beneficial, sustaining and energy efficient end result that fit within the program metrics set by PSE&G. The end result was a two-phase construction effort starting in November 2013 with completion in April of 2015.

PHASE 1

Work includes installation of high efficiency LED lighting upgrades (interior and exterior), state of the art dimming and occupancy-based lighting controls, boiler burner replacements and premium efficiency motor upgrades. This portion of the work has an estimated construction cost of $875,000 with a calculated energy savings of $158,000 per year resulting in a 5.5 years simple payback.

PHASE 2

Work includes the rehabilitation of an aging chilled water plant in addition to other controls modifications throughout the hospital HVAC system in order to remedy poor delta T issues witnessed by the hospital facilities management staff. The Phase 2 scope of work involves the replacement of two of the three existing chillers with premium-efficiency magnetic bearing chillers, modifications to the existing chilled water and condenser water piping systems, conversion of the pumping systems to primary variable flow, installation of pressure independent control valves at multiple air-handling units, variable frequency drives upgrades to existing cooling tower fan motors and expansion of the existing Siemens control system to incorporate all the new chilled water plant and HVAC system modifications. The Phase 2 work has an estimated construction cost of $2,100,000 with a calculated energy savings of $180,000 per year resulting in a 11.7 years simple payback.

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CASE
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Cooper University Hospital
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Robert Wood Johnson University Hospital
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University of Medicine & Dentistry
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