Advanced control solutions to increase efficiency of a furnace combustion process

Zanoli, Silvia Maria; Barchiesi, D.; Astolfi, Giacomo; Barboni, L.

doi:10.23919/ecc.2013.6669817

Cited by 2 publications

(4 citation statements)

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“…Subsequently, the final fuel flow demand is determined between two margins, α 2 and α 4 . The values of α are typically selected between 2% and 5% [5,11]. Therefore, the DCL strategy prevents high or low AFR by selecting appropriate air and fuel flow demands.…”

Section: Supplementary Dmc For Afrmentioning

confidence: 99%

“…Recently, Bhowmick and Bera [9] pointed out the weakness of the cross-limiting technique in abnormal condition, and Liu, He, and Wang [10] and Zanoli et al [11] proposed the double cross-limiting (DCL) strategy that generalizes the cross limiting technique. In the DCL algorithm, the fuel and air demand signals are limited within a reasonable band of corresponding combustion air and fuel, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…This supplementary control structure over the existing combustion control is very practical and easy to implement because it can be easily bypassed in the case of an emergency. Figure 2 shows a typical conventional combustion control with DCL strategy of a coal-fired power plant [5,10,11]. In the figure, each block of F(x) represents a look-up table or static mapping between the input and output.…”

Section: Introductionmentioning

confidence: 99%

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Supplementary Control of Air–Fuel Ratio Using Dynamic Matrix Control for Thermal Power Plant Emission

et al. 2020

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This paper proposes a supplementary control for tighter control of the air–fuel ratio (AFR), which directly affects the environmental emissions of thermal power plants. Dynamic matrix control (DMC) is applied to the supplementary control of the existing combustion control loops and the conventional double cross limiting algorithm for combustion safety is formulated as constraints in the proposed DMC. The proposed supplementary control is simulated for a 600-MW drum-type power plant and 1000 MW ultra-supercritical once-through boiler power plant. The results show the tight control of the AFR in both types of thermal power plants to reduce environmental emissions.

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Section: Supplementary Dmc For Afrmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Supplementary Control of Air–Fuel Ratio Using Dynamic Matrix Control for Thermal Power Plant Emission

et al. 2020

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“…In the literature, we can find various applications of adaptive control focused on combustion processes (e.g., [13,24]). Applications of optimal, adaptive, and predictive control for combustion processes are also known (e.g., [43]).…”

Section: Adaptive Control In Industry Systemsmentioning

confidence: 99%

Heuristic Adaptive Control of Waste Gas Exhausting in Coke Making

Kačur¹,

Flegner²,

Durdán³

et al. 2020

Adv. Sci. Technol. Res. J.

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Stabilization of the carbon monoxide (CO) in the waste gas is a common technical problem in many industrial plants. Stabilization can be performed continuously by regulating the fuel input or by regulating the exhaust gas draught. This paper proposes an adaptive control system for CO stabilization in waste gases based on a discrete controller. Heuristic adaptation of a discrete controller is based on continuous optimization of controller parameters. The advantage of this solution is that the control system does not need to perform the identification of the controlled system repeatedly. The parameters of the controller are dynamically optimized during the production process. By regulating the under-pressure, we change the amount of air supplied to the combustion chambers, which affects the combustion of gaseous fuel and also the concentration of CO in the waste flue gas. The control algorithm was verified for the combustion process in coke making. The proposed control achieved good stabilization quality when verified in simulation and also in an industry operation. The CO level at which the waste gas temperature was highest was selected as the setpoint. It was found that the stabilization of CO in waste gas to lower values is possible to achieve higher waste gas temperature and by that, higher temperatures in heating chambers.

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Advanced control solutions to increase efficiency of a furnace combustion process

Cited by 2 publications

References 0 publications

Supplementary Control of Air–Fuel Ratio Using Dynamic Matrix Control for Thermal Power Plant Emission

Supplementary Control of Air–Fuel Ratio Using Dynamic Matrix Control for Thermal Power Plant Emission

Heuristic Adaptive Control of Waste Gas Exhausting in Coke Making

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