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Dr. Shanjian Liu
Shandong University of Technology

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0 Biomass
0 Robustness
0 control system
0 catalytic pyrolysis
0 Clean combustion

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Research article
Published: 06 May 2021 in ACS Omega
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A 130 t/h biomass circulating fluidized bed (BCFB) boiler combustion system model, considering the chloride release and pollutant emissions during the biomass combustion, was established using the Modelica language. The effects of the biomass feed amount, limestone amount, excess air coefficients, and different ratios of primary and secondary air on the boiler furnace temperature and flue gas composition (O2, CO2, SO2, HCl, and KCl) were investigated. Upon the biomass feed amount step change, the variation ranges of NO and KCl concentrations were very large, which were 18.58 and 21.16% of the before step value, respectively. The step change of the limestone input had little effect on b ed temperature in the dense phase zone, but it could obviously reduce the SO2 concentration. The concentration of SO2 in flue gas decreased by 22.56% when the limestone input increased by 50%. The removal rate of SO2 gradually decreased with the increase of the limestone amount. The SO2 desulfurization rate decreased by 68.30% when the amount of limestone increased from 0.0275 to 0.0825 kg/s. More NO would be generated and KCl concentration would be significantly reduced with the increase of the excess air coefficient. When the ratio of primary and secondary air was 4:6, the NO concentration in flue gas was lower than 86.06 mg/Nm3.

ACS Style

Yaya Liu; Shanjian Liu; Yingjie Li; Yongjun Li; Jianjie He. Influence of Operating Parameters on Chlorine Release and Pollutant Emission Characteristics of a 130 t/h BCFB Combustion System. ACS Omega 2021, 6, 12530 -12540.

AMA Style

Yaya Liu, Shanjian Liu, Yingjie Li, Yongjun Li, Jianjie He. Influence of Operating Parameters on Chlorine Release and Pollutant Emission Characteristics of a 130 t/h BCFB Combustion System. ACS Omega. 2021; 6 (19):12530-12540.

Chicago/Turabian Style

Yaya Liu; Shanjian Liu; Yingjie Li; Yongjun Li; Jianjie He. 2021. "Influence of Operating Parameters on Chlorine Release and Pollutant Emission Characteristics of a 130 t/h BCFB Combustion System." ACS Omega 6, no. 19: 12530-12540.

Review article
Published: 29 September 2020 in Biomass Conversion and Biorefinery
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The nitrogen-rich pyrolysis is a significant technique to improve the utilization and value addition of biomass. The bio-oil derived from the biomass nitrogen-rich pyrolysis is abundant in high-value nitrogenous compounds. Carbamide-pretreated pine powder was used to produce bio-oil through fast pyrolysis in this paper. Effects of pyrolysis temperature and the concentration of carbamide solution on the product distribution and the content of important compounds (e.g., phenols, amines, indoles, pyrroles) in pine powder–derived bio-oil were investigated. The results showed that the bio-char yield decreased as the concentration of carbamide solution increased. The highest bio-oil yield (51.8%) appeared at a temperature of 400 °C and an impregnated carbamide solution concentration of 10%. The contents of acids, ketones, and aldehydes in the bio-oil obtained by carbamide-impregnated pine powder significantly decreased while the content of phenols observably increased. Compared with the bio-oil derived from raw pine powder, there were various nitrogenous compounds generated in the bio-oil produced by carbamide-impregnated pine powder. As the concentration of carbamide solution increased, the varieties of nitrogenous compounds increased.

ACS Style

Dongmei Bi; Mei Jiang; Xiaona Lin; Fupeng Huang; Shanjian Liu. Effects of carbamide pretreatment on product distribution and bio-oil composition from fast pyrolysis of pine powder. Biomass Conversion and Biorefinery 2020, 1 -10.

AMA Style

Dongmei Bi, Mei Jiang, Xiaona Lin, Fupeng Huang, Shanjian Liu. Effects of carbamide pretreatment on product distribution and bio-oil composition from fast pyrolysis of pine powder. Biomass Conversion and Biorefinery. 2020; ():1-10.

Chicago/Turabian Style

Dongmei Bi; Mei Jiang; Xiaona Lin; Fupeng Huang; Shanjian Liu. 2020. "Effects of carbamide pretreatment on product distribution and bio-oil composition from fast pyrolysis of pine powder." Biomass Conversion and Biorefinery , no. : 1-10.

Review article
Published: 07 February 2020 in Applied Thermal Engineering
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An experimental investigation of the thermal contact resistance (TCR) between non-conforming rough surfaces was conducted. Experiments demonstrated that the TCR of OFC-OFC (Oxygen-Free Copper) and SS304-SS304 (Stainless Steel 304) decreased as the thermal conductivity increased. Similarly, the TCR of AlN-AlN ceramics decreased when the thermal conductivity increased from 300 to 347 W·m−1·K−1 at temperatures ranging from 90 to 140 K. The variation between the TCR and the thermal conductivity first exhibited an increasing trend and then a decreasing trend. Experiments revealed that the effect of the material with the lower thermal conductivity was dominant, such as OFC-SS304 and OFC-AlN ceramics. The TCR of the dissimilar contact materials was influenced significantly by the material that demonstrated a lower thermal conductivity at 0.35 MPa. The TCR of OFC-OFC and the thermal conductivity exhibited an exponential relationship under low pressure conditions and a polynomial relationship when the external pressure ranged from 0.53 to 0.71 MPa. The relationship between the TCR of OFC-SS304 and the harmonic mean thermal conductivity exhibited an exponential relationship from 0.23 to 0.68 MPa. The results presented in this study provided not only a better understanding of the TCR but also a database for engineering applications.

ACS Style

Dongmei Bi; Mei Jiang; Huanxin Chen; Shanjian Liu; Yaya Liu. Effects of thermal conductivity on the thermal contact resistance between non-conforming rough surfaces: An experimental and modeling study. Applied Thermal Engineering 2020, 171, 115037 .

AMA Style

Dongmei Bi, Mei Jiang, Huanxin Chen, Shanjian Liu, Yaya Liu. Effects of thermal conductivity on the thermal contact resistance between non-conforming rough surfaces: An experimental and modeling study. Applied Thermal Engineering. 2020; 171 ():115037.

Chicago/Turabian Style

Dongmei Bi; Mei Jiang; Huanxin Chen; Shanjian Liu; Yaya Liu. 2020. "Effects of thermal conductivity on the thermal contact resistance between non-conforming rough surfaces: An experimental and modeling study." Applied Thermal Engineering 171, no. : 115037.

Journal article
Published: 18 December 2018 in Sustainability
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The control of an ultra-supercritical (USC) boiler–turbine power plant is critical in maintaining the safety of the sustainable power grid. However, it is challenging due to the internal nonlinearity, hard manipulation constraints, and widespread uncertainties. To this end, a fuzzy extended state observer (FESO)-based stable fuzzy predictive control (SFPC) approach is developed in this paper. First, the control difficulties of the USC boiler–turbine unit are analyzed. Then, based on a Takagi–Sugeno (T–S) fuzzy model, a new FESO is developed for nonlinear systems to achieve a more precise observation performance. The gain of FESO is determined by solving a series of linear matrix inequalities, while guaranteeing the stability of FESO. Then, by combining the proposed FESO with the SFPC, an integrated FESO–SFPC algorithm is devised. The disturbance rejection ability of the FESO–SFPC algorithm is analyzed theoretically. Simulation results on a 1000 MW USC boiler–turbine power plant model further validate the effectiveness of the proposed method.

ACS Style

Chen Chen; Lei Pan; Shanjian Liu; Li Sun; Kwang Y. Lee. A Sustainable Power Plant Control Strategy Based on Fuzzy Extended State Observer and Predictive Control. Sustainability 2018, 10, 4824 .

AMA Style

Chen Chen, Lei Pan, Shanjian Liu, Li Sun, Kwang Y. Lee. A Sustainable Power Plant Control Strategy Based on Fuzzy Extended State Observer and Predictive Control. Sustainability. 2018; 10 (12):4824.

Chicago/Turabian Style

Chen Chen; Lei Pan; Shanjian Liu; Li Sun; Kwang Y. Lee. 2018. "A Sustainable Power Plant Control Strategy Based on Fuzzy Extended State Observer and Predictive Control." Sustainability 10, no. 12: 4824.