• Contaminant Capture
  • Whole Building Flows
  • Ventilation Systems
  • Spill/Release/Hazmat
  • Security Planning
  • Indoor Air Quality
  • Industrial Processes
  • Hospitals/ Healthcare
  • Pharmaceutical R&D/ Mfg
  • Commercial/ Residential
  • Industrial HVAC
  • Data Centers


Whole Building Ventilation Optimization

Background: Production in a commercial printing company was being disrupted by continued employee complaints due to solvent odors from a new printing process. Departments adjacent to the new process and areas on the other side of the facility were being affected. The project objectives were to prevent the process vapors from migrating from the print room to adjacent areas, and to prevent the process exhaust from re-entering through the building air intakes.

Method: Determined an alternate location to discharge the process exhaust and designed a new exhaust stack. Used CFD modeling and dispersion analysis to verify that the new stack would provide sufficient dilution so that odors could not re-enter the building. Developed a whole-building general ventilation plan to minimize contaminant migration inside the facility.

Results: After the new stack was installed and the general ventilation plan implemented, process odors were essentially eliminated in adjacent departments and other areas of the plant. Odor complaints ceased. Employees were able to focus on their normal work activities. Follow-up a year later showed good working conditions had been maintained.

CFD results show good exhaust dispersion from the proposed stack even under worst-case conditions.

Diagram from the general ventilation plan showing air pressure patterns between various work areas.

See Projects for more examples.