The Predictive Emission Monitoring System was introduced and approved in the year 1992 by USA as a method of monitoring emissions. The system makes use of a software that provides real-time information about emissions in relation to the existing instruments. This ensures accurate and fast information for better monitoring of emissions.  The software is cost effective since one does not have to install any hardware on their systems. It has widely replaced continuous emissions monitoring systems in the US and other countries as well. The software uses a powerful analytic engine with a sensor authentication system, which ensures compliance with the set emissions regulations.

The sensor system compensates for drifting or faulty sensors by reconstructing the faulty sensor values. Predictive Emission Monitoring System plays an important role in detection of inappropriate unit operation. The software is checked and updated from time to time and inspected by the licensing authorities. Input conditions are considered in predicting the kind of emissions to be detected. Some of these conditions include load, fuel used, environment conditions, pressure, temperature, heat exchange, air conditioning and cooling systems used. All these factors enable the software managers to come up with a conclusive PEMS formula.

Predictive Emission Monitoring System has a couple of advantages over the continuous emissions monitoring systems. The installation cost is cheap. This also applies to the maintenance costs since no hardware is used. The system is highly reliable and has been tested severally for compliance. There are lower safety risks since one does not have to interact with the emissions. No labour costs are incurred whatsoever. PEMS can detect component malfunction in the system within the shortest time possible. This makes it easier for the maintenance team to do repairs before the problem becomes serious. Operational confidence is increased since the system is very reliable. All these benefits have made PEMS the best monitoring system for industrial emissions. 



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