Utility Area Optimization
Reduction in total utility energy cost by optimizing side wide steam system
Industrial Energy Management Software
Technology description
The solution provides continuous open-loop real-time optimization system to improve the economic operation, minimize utility operating costs, and to optimize distribution of load and supply under current operating constraints.
The optimizer delivers operational benefits by balancing steam generation and turbine operation to minimize overall fuel consumption.
The optimizer provides operational recommendations for the optimal setpoints and constraints which include recommendations on equipment changes.
The optimizer also informs the operators when it is appropriate to start-up additional electrical generation equipment, or switch between steam and electric machinery drives when there is excess steam generation across the headers.
Key features
Optimal setpoints for operator implementation include:
- Gas turbine power
- Steam turbine throttleand extraction flows
- Boiler steam loads
Key constraints include:
- Steam and electricity demands
- Heat recovery boiler limits
- Boiler fuel limits
- Steam turbine generation limits
The minimized cost function by the optimizer includes:
- Natural gas fired by the gas turbines
- Fuel gas fired by the boilers
- Fuel oil fired by the boilers
- Boiler feed water for the steam generation equipment
Application fields
- Utility area optimization
Business case
CO2 impact / Energy cost reduction
- Minimising imported fuels
- 2%-5% of total energy costs for electric/fuel – higher if there is a co-gen
Non-energy benefits
- Assists operator with how to deal with plant upsets
Technology deployed by
- Thai Oil Public Co. Ltd. Sriracha Refinery, Thailand
Please contact Emerson Process Management for more information.
