An energy audit of the Logansport Hospital facility identified five energy conservation measures. DAE recommended upgrading T12 with T8 fluorescent lamps and ballasts, power factor correction, night setback in select areas, window and motor replacements. The energy cost payback and return on investment to implement these measures are 4.1 years and 12.8%, respectively, which will result in an 8.0% reduction in energy costs.
DAE was responsible for multiple mechanical and plumbing remodel projects over an 8 year period. Projects included installation of heat reclaim incinerator, energy conservation related modifications to various air handling systems and chilled water plant.
This project included electrical and mechanical design for new satellite hospital, to include surgeries, patient care, and an administrative area.
DAE completed the mechanical and electrical renovation of the fourth floor ob/gyn/birthing rooms at this facility. This included design of specialized climate in limited available installation space.
Chiller Plant Addition
This project provide for the addition of 2,400 tons of chiller capacity to the existing chiller plant. This included (2) 1,000 ton (4,460 volt), (1) 400 ton chiller (4,460 volt), an additional cooling tower cell, and new chiller and cooling tower pumps. A key facet of this project was the necessity to provide this additional chiller capacity in a manner that met hospital acoustical level standards.
Also, included with this project was the efficient integration of the staging of chillers for efficient use during part load operation.
Estimated cost of this project as $1.2 million, but actual cost came in significantly under the estimate due to creative use of Victaulic piping connections suggested by Design-Aire Engineering, Inc. (DAE) for Phase I installation that was mostly reusable under the subsequent Phase II installation designed by DAE.
In an energy audit for this 438,072 square foot hospital, 4 ECMs were chosen. Included in the study were fluorescent lamp and ballast replacement and variable speed chilled water pumping. Our calculations demonstrated a savings of $40,455 per year, or about a 16.9% ROI achieved in 5.9 years. Resulting from our energy audit, Home Hospital chose DAE to upgrade their 1,000-ton chilled water system to a primary/secondary system incorporating 2 variable speed 125-hp secondary pumps.