Wind Engineering

Pedestrian Comfort

Air Quality

Exhaust Stack & Air
Intake Solutions

Sun / Shade / Glare

Snow Engineering

Ventilation

Noise, Acoustics & Vibration

Hazard & Risk

Computational Fluid Dynamics (CFD)

Regional Airshed Modeling

Regulatory Permitting

Stack & Field Testing

Laboratory Services

Master Planning

Sustainable Design

Protective Ventilation

Services

 Ventilation

RWDI has assisted designers throughout the world with complex ventilation issues for projects with demanding requirements.

Typical projects:

  • Atrium spaces
  • Laboratories
  • Animal holding rooms
  • Museums
  • Sports facilities
  • Convention centers
  • Hospital isolation rooms
  • Smoke management 
  • Tunnels
  • Stations

RWDI identifies and solves problems related to:

  • Air flow distribution
  • Temperature and humidity
  • Dust levels
  • Smoke control
  • Pollutant containment
  • Odor migration
  • Indoor air quality
  • Natural ventilation
  • Energy savings

RWDI resources include:

Computational Fluid Dynamics (CFD) Testing

A computer simulation technique that predicts air speed and direction, temperature, humidity, and concentrations of contaminants at thousands of points within a space.

Tracer Gas Equipment

Test and develop fume hoods, laboratory control systems, and diffuser arrangements in full scale mock-ups using tracer gas and velocity measurement methods.

Indoor Monitoring Equipment

Continuous monitoring and sampling programs assess the performance of existing ventilation systems.

Scale Modeling Facilities

Scale models or mock-ups of indoor spaces evaluate ventilation flows, solar gains, process heat and contaminant sources to aid in the design of a facility.

What RWDI can do for you:

Consultations / Design Reviews

Early in the design process, review information and provide recommendations to anticipate and avoid potential problems.

Internal Ventilation Analysis

Computer of physical modeling of spaces that are difficult to control to set design flows, locate diffusers and predict resulting conditions.

Fire / Smoke Control Assessments

Perform smoke migration analyses of fire scenarios to aid designers in evaluating emergency ventilation strategies for smoke control.

Air Quality Assessments

Determine existing or back-ground levels of contaminants to assist in design.

Certificates of Approval / Permitting

Provide assistance to obtain government approvals for new and modified sources of pollution.

Fume Hood Performance Testing and Development

Test fume hood designs using ASHRAE 110 containment and face velocity tests.

Expert Testimony

Specialists provide testimony at government hearings and court cases.

Odor Assessments

Identify odor sources and under-take odor panels to determine the required level of control or the effectiveness of solutions.

Conceptual and Sustainable Design

Develop novel concepts to a level where mechanical designers can provide a practical system.  Assess the viability of natural or hybrid ventilation schemes.

Additional information:

Isolation Room Ventilation Design Case Studies PDF (1.1 MB)
Atrium Smoke Management PDF (260 KB)
Designing Air Distribution Devices PDF (240 KB)
Airflow Analysis PDF (490 KB)
CFD Applied PDF (230 KB)
Displacement Ventilation (presentation with videos)
PDF (32MB)



Smoke Propagation Simulation
Stadium Ventilation
monitoring
Natural Ventilation