St. Louis County Crime Lab

Built in 1946 and originally not designed for air conditioning the upper two floors of the building have clear ceiling heights of 6’-0” to 8’-8” in several locations. Laboratory spaces of this nature typically want 10 foot high ceiling and 14-15’ clear structures. The project’s goal was to update these building floors to a modern facility with updated central HVAC, updated plumbing, new lab utilities, electrical, fire protection, security and data communication systems. The building’s infra-structure posed many design and construction challenges, which included the need to upgrade the building’s central mechanical and electrical systems provided from the campus’ central plant located in an adjacent building.

The $12M, 40,000 sq ft project includes Forensic Laboratory spaces for: Chemistry, Biology (including DNA), Evidence Processing & storage, Fingerprinting, Photography, Fire Arms (including range), administration and Vehicle Processing bays.
McClure Engineering provided HVAC, Electrical, Plumbing, Fire Protection and Security Systems design services.

The HVAC loads associated with these laboratories require modifications to the campus chilled and heating water systems. The chilled water loop piping serving the building was increased in size and the building pumps were up-sized. The campus heating hot water loop was sufficient in size, however the building loop pump was replaced to properly meet the new building loads. HVAC systems utilize HEPA filtration of exhaust air from the Firing Range and energy recovery from all Lab Exhaust Air. Electrical systems include emergency power distribution, high efficient lighting with Task support and circuiting by Lab usage. Plumbing systems include High Purity (99.999%) gas manifolds for Nitrogen, Hydrogen, Lab Air & Helium.

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3506 S. Broadway AHU Study

Sigma-Aldrich – St. Louis, Missouri

Develop a project budget opinion and scope of work to replace an indoor AHU with RTU to allow for future process equipment. Air Handler 3 is selected with 42°F entering chilled water and a 14°F rise in chilled water.  This selects a larger cooling coil and assists in keeping the chilled water loop at a high differential temperature; thereby, keeping the chillers operating at their highest performance.  It is understood that humidity control for the space served is not critical of upper and lower tolerances or limits, so the low discharge air temperature is not required (for a dry space) and the humidifier is not required (to maintain a minimum humidity).

HH Building Airflow Study

Pfizer – Chesterfield, Missouri

An energy study of the facility identified that the quantities of ventilation required for Building HH (a laboratory and pilot plant facility) by far exceeded the usage of the other buildings on Pfizer’s Chesterfield Campus.  Upon further investigation, we found that airflows had been increased during a recent renovation of the building.  After we brought this to the attention of the Owner, a study was commissioned to determine the actual airflow requirements for the various portions of the building.  This study consisted of field investigation of the actual equipment and lighting loads as well as amperage measurements at all power panels.  As a result of this study, the total ventilation airflow to the building was reduced by 32,000 cfm.  This results in a net energy usage reduction of approximately $77,000 per year while simultaneously freeing up 300 tons of cooling capacity and 2600 lb/hr of steam capacity.

Boiler Plant Lighting

Nestle Purina Petcare – St. Louis, Missouri

Replacement of existing HID and fluorescent lighting with LED light fixtures to better suit the layout of the boiler plant after the installation of new boilers and new cat-walks.

Building A7 Solar Systems

Nestle Purina Petcare – St. Louis, Missouri

In 2012 a Photovoltaic solar and a solar hot water system were installed on the roof of the Danforth building. The Photovoltaic Solar system consists of 80 @ 300 watt solar modules and can produce 24,000 watts of electricity. At full capacity the Photovoltaic solar system can produce around 50% of the Danforth’s building 50,669 watt lighting load. The solar hot water  system consist of 27 evacuated tube collector panels and can produce almost 300 million btu’s of hot water annually. At full capacity the solar hot water system provides 100% of the Danforth building’s heating system reheat water and supplements the Administration building heating system’s reheat water.

Brewing Process Control Center

Anheuser Busch – St. Louis, Missouri

This 50,000 SF facility controls all functions of the brewing process for the St. Louis Brewery. The facility includes the control room, maintenance shop, lunchroom, quality assurance lab, conference rooms, and offices. We prepared the design/build package for mechanical, electrical, plumbing, fire protection, lighting, and security systems. In addition, we provided fundamental and enhanced building commissioning services related to LEED certification under the US Green Building Council LEED Rating System. The goal of commissioning is to, in a timely delivery, ensure the successful design, installation, and performance of the system.