Multi-element project to improve reliability

Key challenges

Firing a local anthracite coal, both boilers on this newly-built plant suffered severe slag build-up resulting in frequent and large slag falls and unstable combustion, causing frequent loss of flame and unit trips.

RJM Solution

Combustion Audit followed by a comprehensive evaluation phase including coal characterisation, isothermal CFD modelling, physical modelling, and a fully-validated combustion CFD modelling study. Following confirmation of the root causes, RJM designed and installed a number of innovative and cost-effective firing system modifications.

Results

Boilers operating reliably, with improved efficiency and reduced NOx emissions.