Rich Burn integrates fuel control and catalyst control in a single system using StableSense™ Technology. Unlike first-generation A/F controls, E6 and E3 Rich Burn effectively analyzes, controls and optimizes engine and catalyst functions without continuous readjustment.
The system can be used as a stand-alone air-fuel ratio controller or as a complete gas engine emissions and engine control. It is designed for stoichiometric, spark-ignited natural-gas engines used in gas compression, power generation, pumping, and other stationary applications ranging from under 300 kW (400 hp) to over 2 MW (2700 hp). It has full authority over spark, fuel, and air. Additionally, diagnostics such as misfire detection and other health monitoring and engine protection functions are integrated into the system.
The Rich Burn system-based solution analyzes and controls all of the functions of your engine and catalyst to optimize the amount of time your engine is in compliance. The system controls the air-fuel ratio through a fuel metering trim valve. By means of the exclusive StableSense™ oxygen feedback sensor in the exhaust and the unique StableSense™ control algorithm the air-fuel ratio (lambda) is controlled slightly below 1 to optimize the three-way catalyst emission reduction.
REDUCE YOUR COST OF COMPLIANCE BY STAYING IN COMPLIANCE
Staying within government-initiated emission regulations is a fact of life for anyone operating a natural gas fueled reciprocating engine. Emission compliance adds costs to the maintenance of rich burn natural gas engines. Woodward’s E³ Rich Burn air to fuel ratio (AFR) control system for natural gas engines minimizes the resources needed to meet emissions compliance.
BENEFITS AT A GLANCE
E³ Rich Burn integrates fuel control and catalyst control in a single system using StableSense™ Technology. Unlike first-generation A/F controls, E³ Rich Burn effectively analyzes, controls and optimizes engine and catalyst functions without continuous readjustment.
Reduce the amount of money and resources spent adjusting and recalibrating your engine to meet compliance limits, regardless of changing load and environmental conditions.
INCREASE ENGINE UPTIME
Identify potential engine and catalyst risks before they happen. E³ Rich Burn monitors more of your engine critical parameters, allowing you to identify and troubleshoot potential failures.
STAY IN COMPLIANCE
Enter your exhaust emission compliance limits into the E³ Control System and the engine will stay within those limits for years regardless of conditional changes.
REDUCE MISFIRE DAMAGE
Alarm or shut down to minimize engine and catalyst problems due to repeated engine misfires.
REDUCE SYSTEM COMPLEXITY
Combine the AFR with speed and ignition control in one box.
FEATURES AND FUNCTION
- Control catalyst effectiveness with AFR
- Detects and alarms repeated misfire conditions reducing potential damage to the engine and catalytic converter
- AFR start fuel trim to simplify starting
On-board diagnostics and fault logging for troubleshooting
- Cylinder bank balancing for improved performance
- Ignition timing adjustment to improve starting reliability and performance
- Speed and load control for improved engine control
- External AFR and speed bias
- Direct interface with generator control for engine load and dynamics control based on breaker status
- Multi-level fallback fault strategy to handle loss of sensor information
Catalyst health, temperature, and pressure monitoring
- Engine coolant temperature, lube oil temperature, and pressure monitoring
MAP* and MATl health monitoring
- Class I, Division II classification