Case Study

From theory to practice

OUC Downtown West Chiller Plant

The award winning OUC Downtown West Chiller Plant presents an opportunity to directly compare traditional project delivery methods with our IPD Process. The Owner wanted to replicate an existing chiller plant on a downtown Orlando site to serve the new Amway Center. The Owner opted to use a traditional bid/build contracting method, since the plans and specifications were completed and just required minor modifications to fit the new site. Our IPD Team was the successful low bidder, selected from a field of experienced contractors, including the team that built previous chiller plant for OUC. Since this plant was replica of a existing chiller plant built on a different site using traditional construction methods it is a perfect example to highlight specific examples of the benefits of our IPD process.

We saved the Owner more than one million dollars in construction and they will continue to save money in operation and maintenance throughout the life of the chiller plant.

Real World Comparisons

Future Roofing – Their Way

Condenser water piping run above the roof under the towers will make re-roofing costly and difficult. Note how the piping and superstructure block access around the roof.

Future Reroofing – Our Way

With the condenser water piping run in the space below the roof there is little on the roof to obstruct access or to interfere with eventual re-roofing.


Roof Access – Their Way

Because of congestion on the roof each of the roof hatches completely blocks a perimeter isle. The hatch with the Chicago boom is prevented from fully opening by the louvered wall structure.

Roof Access – Our Way

With the condenser water piping below the roof and the use of structurally self supporting cooling towers by Marley there is more than ample room on the roof for easy access.


   

Rain Leaders – Their Way

The vertical black pipes are rain leaders which were brought down from the roof throughout the building at the column lines. This obstructs isle space and adds clutter to the operations area.

Rain Leaders – Our Way

In the New Downtown West Chiller Plant all rain leaders were brought down along the walls freeing up valuable operations area and making for a cleaner installation.


Relief Lines – Their Way

Refrigerant relief vent lines (4” black pipe) were routed through the walls adding unnecessary clutter and expense.

Relief Lines – Our Way

We ran the lines are run vertically through the roof for the cleanest and least costly installation.


Eletrical/Mechanical – Their Way

The electrical was not adequately coordinated with the mechanical in the shop drawing stage resulting in unsightly and costly conduit arrangement.

Eletrical/Mechanical – Our Way

This is what an installation can look like when all trades are carefully coordinated in the design and shop drawing phase of the project.


VFD Installation – Their Way

VFDs installed beside each pump add clutter and interfere with maintenance operations.

VFD Installation – Our Way

Notice the complete access to the pumps as well as to the VFDs when they are installed back along the wall rather than in the floor beside the pumps.


Motor Starter Installation – Their Way

Here the motor starters for the cooling towers are located on the roof subject to the weather and corrosive chemicals from the water treatment process. The beginning of rusting can already be seen at the hinges.

Motor Starter Installation – Our Way

At the new Downtown West Chiller Plant the starters for the cooling towers are located in the plant out of the elements and out of the way along a section of wall.


Installation – Their Way

Note the insulation for the pump extending right down to the floor creating an eventual maintenance problem. Also the power conduit from the VFD to the pump motor creates a housekeeping problem and will eventually interfere with access.

Installation – Our Way

Here we see the pump insulation well off the floor allowing for cleaning and preventing collateral damage from water on the floor. With the VFDs on the wall and the condensate run under the slab we have provided the least interfering installation.