Measurement Sites

Fluid Dynamics Technology Generations Beyond Good quality sampling sites at critical locations are essential to any emissions measurement program. MDS uses the latest Computerized Fluid Dynamics technology to design emissions measurement sites that meet reference methods’ requirements for flow quality. In particular, MDS enhances the flow of air in ducts and stacks where it could otherwise be:

  • Non axial (cyclonic)
  • Not uniformly distributed (skewed)
  • Stratified in concentration (often the result of two sources in one stack)
  • Turbulent (swirling) or pulsating

Energy Recovery • Capacity Improvements Conditioning the flow at such sampling sites may require a small amount of fan energy. However, MDS’ methods typically result in the recovery of energy from improvements to adjacent ducts and equipment. Instead of production capacity losses, MDS’ flow conditioning solutions can actually provide net energy savings, translating to potential capacity improvements.

Benefits of a compliant, flow conditioned sampling site include:

  • Reductions in preparation, setup, and sampling time and costs whenever emissions are measured manually (e.g. ground site with required clearances instead of an elevated site with clearance restrictions)
  • Quality and compliant, manual, and CEMS measurement data year ‘round
  • Capability for individual measurement of multi source emissions upstream of duct connections to a common stack
  • Less costly and more spacious shelters closer to ground level
  • Risk mitigation for performing sensitive sampling work and CEMS maintenance tasks under adverse weather conditions
  • The elimination of an elevator and the associated safety related procedures typical of tall stack sites