Throughout the history of the company, STAN has participated in engineering design for Local and Federal government projects. Often design requirements are dictated by agency specific standards which are then enhanced to improve energy efficiency or maintainability.
Please contact us for a conplete list of projects.
Local & Federal Government
Central Utility Plant
Montgomery County, Ohio
The Montgomery County complex is located in the heart of downtown Dayton, Ohio. It consists of the 12-story County Administration Building and numerous other administration, courts, and detention facilities spread over an extensive campus area. Previously, each building had independent chillers. The STAN project scope included engineering of a new central chilled water plant to serve all buildings, and a new primary/secondary pumping system spread over an area of several blocks. The total cost for this project was approximately $4,250,000.00.
The project started with a feasibility study and a detailed life cycle cost analysis to determine the economics of creating a new central plant. The LCC analysis included a parametric study of risk based on utility cost uncertainty over time and impact of actual bids being high or low. The results of the study formed the basis for the design.
Based on the availability of well water as indicated by test wells, a well water cooled plant was selected. Three chillers of 750 tons each were combined with chilled water piping and pumping to allow for redundancy if pumping systems or chillers fail. Although well water improves efficiency of the chillers, the pumping power of the wells must also be accounted for. The final design used well water for chiller number one, and the same water in series for chiller number two. Chiller three receives well water directly as a single pass. Piping and pumping configurations on the well water (condensing) side of the system were designed for redundancy should major components fail.
Piping from the new central plant to the buildings was designed as primary secondary, with three separate secondary main loops to serve buildings with varied piping and location configurations. Optimized control of the plant is used to restrict peak electrical demand.
This project illustrates our ability to study and design significant chilled water plants.
Public Safety and Administrative Facility Renovation
City of Oakwood, Ohio
This project included the addition of approximately 42,750 square feet and the renovation of approximately 23,200 square feet to the existing facility. The completed project includes a new fire apparatus bay and training area, public safety garage, sally port, dispatch area, as well as council chambers, meeting rooms, and office area.
Our scope of services included entirely new plumbing, mechanical, DDC temperature controls, and electrical systems as well as a new boiler, chiller and VAV air handling system. The total cost for this project exceeded $5,200,000.00 with the MEP portion representing approximately $1,580,000.00 of the cost.
This project demonstrates our ability to phase complex projects, and to bring historic buildings up to contemporary comfort and power levels.
Ohio Veterans Home HVAC Upgrade
Not every project we engineer is large or complex, but nonetheless all are equally important. The Georgetown Ohio Veterans Home offers 168 beds for nursing home care, including a 21-bed hospice unit. Two levels of care are offered: standard care for veterans in need of any intermediate level of care, and special care for veterans with Alzheimer’s disease and other types of dementia.
The home opened in 2003, and has had HVAC system and control issues from
the onset. Of major consequence are poorly installed and leaking unions throughout, lack of unions and piping isolation in many areas, and lack of or improper control of patient occupied areas. Air distribution in key areas was improper and ineffective. The combination of rooms into zones of the VAV reheat system was not always correct.
As a result, the project to correct HVAC and Control deficiencies was developed. The engineering design connects the entire HVAC system to the DDC system to provide centralized computer control of the rooftop units, boilers, exhaust fans and the distribution portion of the system so the entire HVAC system will function as one system. Control measures were established to eliminate severe over-pressurization of the building. The piping system was modified to correct union issues and address the lack of shut off valves to key locations and main branches.
This project illustrates our ability in small but complex projects with construction in occupied facilities.