Air Monitoring

Particulate Emission Measurement System for Wet Stacks

Nov 20 2015 Comments 0

Accurate particulate emission measurement in wet gas stream processes, such as monitoring after wet scrubber abatement systems and processes where the flue gas falls below the dew point or has water droplet presence can be challenging. The PCME (UK) QAL 181 WS utilises an extractive approach with heating which overcomes the problem of interference from condensation and water droplets when using an in-situ particulate monitor after wet collectors.

PCME’s QAL1 approved system incorporates automatic zero and span checks on both the instrument and sample handling system to ensure good quality measurements plus continuous diagnostics permit early diagnosis of any deterioration in system performance. Meeting the requirements of PS-11 and EN 14181, the system is suitable for monitoring the highly abated emissions found after Flue Gas Desulphurisation Plant (FGD) and saturated flue gas which is critical for the application of monitoring emissions from a coal fired power plant fitted with a wet FGD system.

Easy and safe operator access to the measurement volume for external auditing with reference materials proves useful in satisfying AST linearity test requirements for EN 14181 compliance and absolute correlation audit for PS-11 compliance.  

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