A hybrid simulation of a 600 MW supercritical circulating fluidized bed boiler system

Study on Powder Coke Combustion and Pollution Emission Characteristics of Fluidized Bed Boilers

“…The calculated temperature distribution in the furnace was similar to the experimental results, the maximum error was less than 25 • C, and the porosity distribution and solid-phase velocity distribution in the furnace were correct. The distribution of gases was similar to that of other fluidized bed boilers [24]. The results show that the model has fairly high precision and can be used for further research.…”

“…In order to simulate those reactions, such as devolatilization, volatile and char combustion, desulfurization, NOx formation, and denitration, only the major reactions have been taken into consideration. The corresponding reaction rates were given in our previous research [24]. In order to calculate the gas-solid phase heterogeneous reaction (such as coke combustion, limestone decomposition, desulfurization, denitration reaction, etc.…”

Study on Powder Coke Combustion and Pollution Emission Characteristics of Fluidized Bed Boilers

“…The calculated temperature distribution in the furnace was similar to the experimental results, the maximum error was less than 25 • C, and the porosity distribution and solid-phase velocity distribution in the furnace were correct. The distribution of gases was similar to that of other fluidized bed boilers [24]. The results show that the model has fairly high precision and can be used for further research.…”

“…In order to simulate those reactions, such as devolatilization, volatile and char combustion, desulfurization, NOx formation, and denitration, only the major reactions have been taken into consideration. The corresponding reaction rates were given in our previous research [24]. In order to calculate the gas-solid phase heterogeneous reaction (such as coke combustion, limestone decomposition, desulfurization, denitration reaction, etc.…”

Numerical and experimental study of co-combustion of refuse-derived fuels in a circulating fluidized bed during load change

“…The results show good flow distribution and small temperature deviation in the evaporator system. Wu et al (Wu et al, 2018) presented a core-annulus model of a 600 MW el supercritical circulating fluidized bed boiler. The results show that the model can reproduce the characteristics of the CFB quite well.…”

On the Flexible Operation of Supercritical Circulating Fluidized Bed: Burning Carbon Based Decentralized Active Disturbance Rejection Control

“…The pole is shifted left from − 1 T to − K c K + 1 T when K c > 0. Also, both (13) and (14) have the same static gain K. Thus, the compensated burning carbon could be accelerated. Figure 7 shows the unit step response of the compensated burning carbon and throttle steam pressure model at different loads, in which K c = 0.03.…”

Study on Powder Coke Combustion and Pollution Emission Characteristics of Fluidized Bed Boilers

“…The calculated temperature distribution in the furnace was similar to the experimental results, the maximum error was less than 25 • C, and the porosity distribution and solid-phase velocity distribution in the furnace were correct. The distribution of gases was similar to that of other fluidized bed boilers [24]. The results show that the model has fairly high precision and can be used for further research.…”

“…In order to simulate those reactions, such as devolatilization, volatile and char combustion, desulfurization, NOx formation, and denitration, only the major reactions have been taken into consideration. The corresponding reaction rates were given in our previous research [24]. In order to calculate the gas-solid phase heterogeneous reaction (such as coke combustion, limestone decomposition, desulfurization, denitration reaction, etc.…”

Numerical and experimental study of co-combustion of refuse-derived fuels in a circulating fluidized bed during load change

“…The results show good flow distribution and small temperature deviation in the evaporator system. Wu et al (Wu et al, 2018) presented a core-annulus model of a 600 MW el supercritical circulating fluidized bed boiler. The results show that the model can reproduce the characteristics of the CFB quite well.…”

On the Flexible Operation of Supercritical Circulating Fluidized Bed: Burning Carbon Based Decentralized Active Disturbance Rejection Control

“…The pole is shifted left from − 1 T to − K c K + 1 T when K c > 0. Also, both (13) and (14) have the same static gain K. Thus, the compensated burning carbon could be accelerated. Figure 7 shows the unit step response of the compensated burning carbon and throttle steam pressure model at different loads, in which K c = 0.03.…”

Study on Powder Coke Combustion and Pollution Emission Characteristics of Fluidized Bed Boilers

“…The calculated temperature distribution in the furnace was similar to the experimental results, the maximum error was less than 25 • C, and the porosity distribution and solid-phase velocity distribution in the furnace were correct. The distribution of gases was similar to that of other fluidized bed boilers [24]. The results show that the model has fairly high precision and can be used for further research.…”

“…In order to simulate those reactions, such as devolatilization, volatile and char combustion, desulfurization, NOx formation, and denitration, only the major reactions have been taken into consideration. The corresponding reaction rates were given in our previous research [24]. In order to calculate the gas-solid phase heterogeneous reaction (such as coke combustion, limestone decomposition, desulfurization, denitration reaction, etc.…”

Numerical and experimental study of co-combustion of refuse-derived fuels in a circulating fluidized bed during load change

“…The results show good flow distribution and small temperature deviation in the evaporator system. Wu et al (Wu et al, 2018) presented a core-annulus model of a 600 MW el supercritical circulating fluidized bed boiler. The results show that the model can reproduce the characteristics of the CFB quite well.…”

On the Flexible Operation of Supercritical Circulating Fluidized Bed: Burning Carbon Based Decentralized Active Disturbance Rejection Control

“…The pole is shifted left from − 1 T to − K c K + 1 T when K c > 0. Also, both (13) and (14) have the same static gain K. Thus, the compensated burning carbon could be accelerated. Figure 7 shows the unit step response of the compensated burning carbon and throttle steam pressure model at different loads, in which K c = 0.03.…”