We provide design of facility infrastructure systems for institutional and commercial buildings.

  • HVAC
  • Chillers
  • Cooling Towers
  • Compressors
  • Pumping Systems

Our hands-on approach to projects including our preliminary site survey and data capture allow us to understand existing conditions and minimize design changes.

Georgia Building Authority – 2 Peachtree Building Steam Boiler Replacement

gba_peachThis project provided the mechanical and electrical design to replace two existing steam boilers serving the heating systems and the domestic hot water heating tanks for the 45 story building located in downtown Atlanta, Georgia.  The original steam boiler equipment was installed in 1964 and provided 42,000 pounds per hour of steam for heating the building.  The design removed one of the large fire tube boilers and replaced them with three water tube steam boilers including boiler feed pumps and makeup tanks. The goal was also to save energy by reducing the dependency on the steam for the building.  High efficiency hot water heating boilers provided supplemental heating for floors 30-42 with new plate and frame heat exchangers.  This equipment was designed and installed on the 42nd floor to accomplish this goal.   This project provided new controls and sequence of operation for the equipment incorporating hot water reset to maximize energy efficiency.   With a 1.8 million dollar construction cost and a 30% annual utility savings has already begun to pay for itself.

Georgia State University: Chilled Water Extension | Student Center to Alumni Hall

project_3This project provided the engineering design for extending the chilled water supply and return lines around the Student Center building and under Gilmer Street to serve Alumni Hall HVAC equipment.  Design provided:
  • Connected to existing east campus chilled water plant piping with new 6-inch piping located in the Student Center mechanical room.
  • Mechanical piping was routed under Gilmer Street to the mechanical room in Alumni Hall.
  • Variable frequency chilled water pumps were installed.
  • Removed existing chillers, condenser piping, cooling towers, pumps, and associated equipment in Alumni Hall.
  • Civil engineering services providing grading, drainage, erosion control, pipe trench, and trench excavation details for Jack & Bore methods beneath Gilmer Street for the pipe routing from the Student Center to Alumni Hall.
  • Site hardscape and landscape design for site renovations associated with the extension of a chilled water line from the Student Center to Alumni Hall.
The project is currently under construction and expected to be completed the summer of 2007.

Georgia State University – Language Research Center – Cage Washing Facility

gsu_lrcThis project is currently in final design and we provided mechanical, electrical and plumbing engineering design for an existing 1,600 square foot existing building located on campus of Georgia State University at 3401 Panthersville Road.  The facility design followed the guidelines described by the Association for Assessment and Accreditation of Laboratory Animal Care (AAALAC).   In addition this project is providing mechanical engineering design to modify the existing NASA Animal Facility.  The air balance in the animal labs will be calibrated to comply with the guidelines described by AAALAC.  The design  also includes modifications to the existing building exhaust system and the 100% outside air heat exchanger.

Georgia Tech: Alexander Memorial Coliseum | Life Safety Upgrade

project_4Phase 1 of this project developed a preliminary design for a smoke management system for the Alexander Memorial Coliseum (AMC) located on the campus of Georgia Tech.

Phase 2 of this project provided mechanical and plumbing design for the Life Safety Upgrades to Alexander Memorial Coliseum (AMC).  A smoke management system for the AMC dome was designed according to the Schematic Design Documents (Phase 1) submitted to the fire marshall.  The following are some items designed:

  • Eight smoke exhaust fans (310,000 CFM)
  • Automatic door openings for makeup air and associated controls.
  • High-pressure natural gas line feed for emergency generator
  • Fire pump room floor drains.
The project is expected to be completed mid-2008.

CNA Headquarters: 2200 Satellite Place, Duluth, GA

project_6This project provided the HVAC design engineering of an approximately 50,000 square feet of a single-story office building located in Duluth, Georgia.  Site visits to determine existing conditions and load calculations were performed for the building.  HVAC equipment was refurbished, new terminal units installed to control the exterior zones and air was redistributed and balanced to accommodate the new cooling and heating loads and coordinated with new wall locations.  A new supplementary Computer Room Unit (CRU) was designed for the new communication rooms.

The project construction was completed in late winter 2006.

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Georgia Tech Alumni/Faculty House | Building Chiller and AHU Upgrade

project_2This project provided the design services for the renovation of a 19,000 square foot, four-story (including the basement) Alumni House Building, located on the campus of Georgia Tech in Atlanta, GA.  Load calculations were performed on the building and four new air handling units were designed to accommodate the calculated building heating and cooling loads.  Building ventilation requirements for each floor were in accordance with ASHRAE Standard 62.  One new air-cooled chiller including the chilled water pump were designed and reconnected to the existing piping system.  One new hot water converter, steam condensate pump and hot water pump were designed.  Controls for the new chiller, pumps, and air handling equipment will be updated to electric/digital controls.  Architectural and interior design will be included to rebuild and paint walls and ceilings as required to match existing conditions. The project is currently on hold for funding and expected to be completed in late 2008.

Georgia Building Authority Governor Mansion Energy Conservation Phase I and II

gba_govThis project provided the mechanical and electrical engineering design for modifying the Georgia Governor’s Mansion located on West Paces Ferry Rd in Atlanta, Georgia.  The scope of the project was to upgrade and replace the heating, ventilation and air conditioning systems (HVAC) in order to increase the overall efficiency and ultimately reduce the annual utility costs.   We removed the existing water cooled chillers and piping in the mechanical room and provided two new water cooled digital scroll chillers, water side economizer and cooling towers. Three existing air handling units (AHU) were removed and new AHU equipment with a 16 degree and 40 degree change in temperature across the respective cooling and heating equipment.

Georgia Tech – #170 Global Learning Center Server Room 409

project_1 This project provided engineering design services for Computer Room 409 located in the Distance Learning and Professional Education Building on the campus of Georgia Tech.  Load calculations were calculated for the space and a new chilled water, floor-mounted computer room unit was designed to accommodate the calculated cooling requirements.  The new computer room unit will have electric re-heat and humidification capabilities.  Electric loads were served from the fourth floor electrical room.

Georgia State University – Natural Science Center – Basement Level Vivarium

gsu_nscThis project provide the mechanical and electrical engineering design to modify an existing Animal Facility in Natural Science Center Building located on the campus of Georgia State University in downtown Atlanta. The design for the facility followed the guidelines of  the Association for Assessment and Accreditation of Laboratory Animal Care (AAALAC). The design also included relocating owner-provided autoclave unit from the RSB Building to the NSC.  This required to upsize the existing steam generator as required. Removed existing waterproof floor in the corridor and  prepare floors for new waterproof membrane floor throughout the animal facility.
  • Provided new steam generator for room humidity located in the mechanical room.
  • Provided devices / equipment to control relative humidity (30% to 70%), temperature (68 F to 74 F) and lighting in each of the animal rooms.  This includes capabilities for status to be displayed to mobile devices.
  • Provide control devices to measure ventilation rates in each animal room.
  • Refurbish existing Semco heat recovery unit serving the existing animal facility.
  • Provided vapor barrier on the existing concrete walls above the ceiling in the animal facilityto prevent water penetration.
  • Locate new fire alarm devices on the floor plans.
  • Provided power to new steam generator  in mechanical room.
  • Provided 120V control power to all mechanical equipment.
  • Provided new lights for use in animal laboratories in corridor and selected holding rooms.
  • Provide visible signaling device outside of each holding room to indicate status of lights – on, off or malfunction.   Lights were connected into existing Siemens BAS system.

Georgia Tech: Renovation of Hefner Residence Hall

project_5This is an existing 28,000 square foot, three-story residence hall including a basement level.  The building will be completely "gutted" and new mechanical, electrical, plumbing, and interior finishes will be installed.

The Hefner Residence Hall was originally constructed in 1969.  The project involves refurbishing the interior bathroom, kitchen, and bedroom HVAC and plumbing systems for an existing three-story dormitory with a full basement.  The design also included connecting the underground building utilities into existing services.  The building's HVAC system was changed from a 2-pipe to a 4-pipe system.

The project is expected to be completed mid-2008.