Industrial Automation

Online Coal GCV Analyser Benefits: Helps in real-time analysis of coal GCV & Reduction in loss of generation due to poor coal quality Automatic Blowdown-Control System Benefits: With automatic blowdown, one can avoid keeping the TDS too low than what is required & can Minimise energy loss from boiler blowdown Intelligent Flow Controller (IFC) for Compressed Air Network It monitors the demand side rate of change of pressure and releases only the required amount of storage air to satisfy the peak demand instead of starting additional compressors. Thus reduction in the mass of air and a reduction in the load period of compressors leads to energy savings   Online GCV

• Quality of coal is a big concern
• A plant usually sources coal from various mines
• Resorts to blending – African Coal, Thailand, India Coal
• The coal from various sources varies in
• Calorific value
• Ash content
• Moisture content
• Online GCV is installed on the coal conveyor belt
• It provided instant monitoring of key quality parameters
• Sensors are radioactive
• CQMS is a must for all DCs

Automatic Blow-Down

• TDS is usually defined by Boiler Manufacturer
• Usually varies from 2000 (LP/MP) to 4500 (HP)
• High blowdown >>Results in low TDS >>Wastage of heat energy
• Less Blowdown >>High TDS/Quality of Steam >>High Fuel consumption

Intelligent Flow Controller for CADN

• CA typically uses 10% of a plant’s total energy (4th largest utility cost)
• Useful Output 10-15% of input (80% heat, 5-10% mechanical loss)
• SSM – Compressor sizing, technology, inter-cooler, heat recovery
• DSM – Piping sizing, VFD, IFC, remote monitoring
• Demand at load end – dynamic leading to fluctuation in sys pressure
• Higher pressure leads to higher air consumption
• IFC helps smoothen CAD system and reduce load timing
• Pressure control within +/- 1 PSIG (0.07Bar)