PEMS exploits advanced mathematical models, which use process parameters (e.g. pressure, temperatures, flow, etc.) as input variables in order to estimate the most common air pollutant emissions (e.g. NOx, SO2, CO, CO2, etc.).
ABB proprietary software Inferential Modeling Platform (IMP) has been designed and tailored in order to meet specific PEMS standards and requirements prescribed by latest environmental legislation.
IMP provides advanced Sensor Validation (SV) algorithms specifically developed by ABB to enhance PEMS reliability and resilience to failures in input variables (e.g. drift in a field sensor) and Model Integrity Test (MIT) functionality to ensure model consistency over time.
Model-based emission monitoring provides a number of unique features and advantages:
-
Increase emission data availability up to 99.5%
-
PEMS can be interfaced directly with plant control systems without the installation of any additional components
-
As a back-up of existing CEMS, PEMS are able to identify possible malfunctioning, providing an alternative measurement when the analyzers are in maintenance
-
They do not require specific consumable and spare parts optimizing the complete lifecycle cost
-
PEMS do not require the complex and difficult-to-maintain infrastructure in order to collect the sample at stack, handle and process
-
PEMS are a non-invasive technology that can be easily integrated at site in a standard server PC, optimizing overall footprint and space
-
Quick and easy implementation and integration at site with minimal disturbance to plant operations.
-
They provide an overview on the process, highlighting anomalies and providing a preliminary evaluation of emission excess
-
A state-of-the-art cyber secure solution giving you peace of mind.