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News
AES multi-boiler operation overview panel view .
dioxide and oxygen to tell us if we have too much or too little fuel or oxygen to achieve the right reaction . That is all data-driven ,” Williams explains .
AES ’ s remote monitoring system ( RMS ) works together with its load-balancing module , he adds . “ The two share some instrumentation and data streams . Through the RMS and its web interface , AES and our clients can see what is happening from an operational perspective .”
Although components such as variable speed drives ( VSDs ) provide more accurate control of elements such as the boiler stoker and fans than previously – and data is also widely used to manage these systems on an ongoing basis - human intervention also remains important .
“ You still need someone with an acute understanding of what you are trying to achieve to set up the system . An element of intervention and oversight by skilled and experienced operations and maintenance personnel in certain circumstances is still needed . An example is having the knowledge to ensure the correct bed depth on the stoker , which other automated systems have failed to do successfully ,” Williams suggests .
The benefits of load-balancing include better control over combustion processes and steam quality – as well as using less fuel and , ultimately , paying lower carbon or green tax .
Going forward , Williams believes that AES and its clients will need to work even more closely together to achieve sustainability targets , whilst increasing efficiencies and minimising costs : “ The imposition of green taxes , whether they are by European or local authorities , will drive an increasing requirement from our clients for accurate monitoring and load-balancing , and the data or metrics which make this possible . We are already conducting various assessments for different fuel types and load-balancing options for clients ,” he says . RACA
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RACA Journal I January 2025 www . refrigerationandaircon . co . za