Balancing Coal Pipes

摘要

At a time when combustion optimization seems to be such an important part of reducing emissions and improving efficiency, in part because of carbon constraints, we have to ask ourselves, how do we balance coal flow to the burners? For dozens of years utilities have spent countless dollars on a variety of techniques and services aimed at balancing their coal pipes. So why is combustion still so bad?rnThe reality is that manual coal sampling in real world power plant conditions is challenging. Call it dirty airflow or rotorprobing, ASME sampling or isokinetic sampling; it does not work for the purpose of accurately measuring coal flow. This should come as no surprise-the procedure is inherently flawed.