Modeling and simulation of the start-up process of a 660MW ultra-supercritical circulating fluidized bed boiler

Zhang, Zonglong; Yang, Chen; Wu, Haochuang; Deng, Kangjie

doi:10.1016/j.compchemeng.2022.108079

Cited by 8 publications

(3 citation statements)

References 18 publications

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“…The three stages of attemperation water are arranged between the LTS and ITS1, ITS 2 and HTS1, HTS1 and HTS2, respectively. The diagram of the superheated steam system is shown in Figure 1 [23].…”

Section: Superheated Steam Systemmentioning

confidence: 99%

“…There are 6 external bed heat exchangers located in the ash circulation loop, 4 of them are superheaters and the rest of them are reheaters. The diagram of the ash circulation loop is shown in Figure 4 [23].…”

Section: Ash Circulation Systemmentioning

confidence: 99%

“…The "core-annulus" model can not only reflect the non-uniformity of gas-solid two-phase distribution in the axial direction, but also reflect its change in the radial direction, so it has attracted a lot of attention since it is reported. The "core-annulus" model in the CFB boiler is shown in Figure 5 [23,24]. In the APROS simulation model, the furnace of the CFB boiler is divided into the upper dilute phase area and the bottom dense phase area.…”

Section: Gas-solid Two-phase Flow and Heat Transfer Modelmentioning

confidence: 99%

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Dynamic Characteristics Analysis of a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler

Yang

Zhang

et al. 2022

Energies

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The 660 MW ultra-supercritical circulating fluidized bed (CFB) boiler, which is the maximum capacity and largest scale boiler in the world has entered construction stage in China. This study established a full-scale dynamic simulation model of the 660 MW ultra-supercritical at 100% boiler maximum continuous rating (BMCR) condition. The model consists of an air-flue gas system, a water-steam system, and an ash circulation system. The “core-annulus” of the gas-solid two-phase flow structure and “six-equation” model of water-steam two-phase flow were applied to simulate the behaviors of the gas-solid phase and water-steam system, respectively. The model was calibrated and verified at 100% BMCR condition, and the steady-state simulation results presented a high accuracy compared with the designed parameters. A dynamic simulation of three typical conditions were carried out as well, including a 5% feed water decrease, 5% air decrease, and 5% coal decrease, respectively. The results showed that the dynamic simulation model established in this study can simulate the dynamic behaviors of the 660 MW ultra-supercritical CFB boiler reasonably.

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Section: Superheated Steam Systemmentioning

confidence: 99%

Section: Ash Circulation Systemmentioning

confidence: 99%

Section: Gas-solid Two-phase Flow and Heat Transfer Modelmentioning

confidence: 99%

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Dynamic Characteristics Analysis of a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler

Yang

Zhang

et al. 2022

Energies

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Configuration and Operation Optimization for Industrial Steam Power System Sustainable Retrofit Considering Renewable Energy Integration

Li,

Yang,

Tian

et al. 2024

Advanced Sustainable Systems

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Renewable energy integration and operational optimization are crucial in energy sustainability and decarbonization, especially for industrial steam power systems (SPS). This study establishes an SPS superstructure that integrates wind, solar, and biomass energy. A mixed‐integer nonlinear programming (MINLP) model is developed to determine an optimal retrofit strategy that minimizes the life cycle cost, which includes carbon emission cost and energy cost. To solve this high‐dimensional complex optimization problem, a multistage strategy fusion differential evolution algorithm with dynamic partitioning of the SVM feasible domain (SVM‐MS‐DE) is developed. The results from the optimal strategy demonstrate a 9.02% reduction in the system's total cost and a 9.64% decrease in carbon emission through the incorporation of wind and solar energy. Additionally, the sensitivity analysis on biomass ratio, carbon emission price, energy demand, and carbon emission limits reveal that the region can contribute significantly to renewable energy initiatives. Several recommended policies are provided to encourage enterprises to move towards sustainable development.

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Online Tracking Simulation System of a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler

Wang,

Yang,

Zhang

2023

J. Therm. Sci.

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Modeling and simulation of the start-up process of a 660MW ultra-supercritical circulating fluidized bed boiler

Cited by 8 publications

References 18 publications

Dynamic Characteristics Analysis of a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler

Dynamic Characteristics Analysis of a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler

Configuration and Operation Optimization for Industrial Steam Power System Sustainable Retrofit Considering Renewable Energy Integration

Online Tracking Simulation System of a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler

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