Improving Fired Heaters Performance using CFD Ashutosh Garg
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Improving Fired Heaters Performance using CFD Ashutosh Garg Furnace Improvements www. heatflux. com Furnace Improvements Services www. heatflux. com
Typical Application of CFD Modeling in Fired Heaters • • Radiant Section-Flue gas patterns Burners- flame patterns Burner plenums- air flow distribution Combustion air duct- flow distribution to burners and radiant cells SCR- flue gas ammonia mixing ID fan suction and duct modeling Economizer coil flow distribution Process manifold pass flow distribution Furnace Improvements Services www. heatflux. com
CFD Modeling of Crude Heater Burner Inlet Duct Furnace Improvements Services www. heatflux. com
CFD Modeling of Duct from ID Fan to Stack Furnace Improvements Services www. heatflux. com
Pressure Contours For Existing And Proposed • Pressure drop in the proposed case is less by about 1 inch WC Furnace Improvements Services www. heatflux. com
Case Study-3 -Crude Heater • Client facing flame impingement and high tube metal temperatures in radiant section • FIS recommended inclined burner firing system to eliminate flame impingement • Carry out CFD Modeling of the Burners and Radiant Section to demonstrate the benefit of inclined burner firing system Furnace Improvements Services www. heatflux. com
Inclined Firing System 11/1/2020 Furnace Improvements Services www. heatflux. com 7
Radiant Wall Temperatures (Deg F) For h = 100 Btu/ft 2 -h and T= 800 °F Modified Design Base Design Furnace Improvements Services www. heatflux. com
