Online Continuous Stack Emission Monitoring System (CSEMS) are used for the measurement of pollutants within the stack emission. Monitoring within the stack presents a number of problems due to extremes of temperature, velocity of sample and pressure. CSEMS is used for continuous emissions monitoring in waste incinerators, cement plants. Typically, concentrations of H2O, CO2, CO, SO2, NO, NO2, N2O, NH3, O2 and TOC (Total Organic Carbon) are continuously measured.
Continuous Stack Emission Monitoring Systems (CSEMS) and Continuous Opacity Monitoring Systems (COMS) involve the installation of monitoring equipment which accumulates data on a pre-determined time schedule. Regulatory agencies or pollution control boards rely on continuous monitoring techniques that require emission sources to be self-reporting when permit limits are exceeded.

How it works?

The extractive dilution system extracts a small sample of gas from the stack. It then filters particulates and dilutes the sample with clean dry air. The diluted sample is then analyzed by high precision analyzer. The data is logged on a continuous basis or uploaded to a third party server, like regulatory agency, on a predefined interval.