A biomass-coal co-firing based bi-level optimal approach for carbon emission reduction in China

Sun, Rongwei; Liu, Tingting; Chen, Xudong; Yao, Liming

doi:10.1016/j.jclepro.2020.123318

Cited by 23 publications

(6 citation statements)

References 53 publications

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“…In addition, the findings are broader for emission reductions in China through emissions trading, which requires the role of decision-making units to evaluate the effectiveness of emissions trading [29]. The same study on the evaluation of carbon emissions trading for China, found that the policy will be successful if it is applied to a group of countries that have good environmental enforcement [30]. Furthermore, the same study was also conducted for the assessment of carbon emissions in industrial companies in China, it was found that these policies only contribute to a certain extent and will decrease over time [31].…”

Section: Introductionmentioning

confidence: 99%

Scenario of reducing carbon emission through shifting consumption of non-renewable energy to renewable energy in asia pacific 2023-2030

Aimon

Kurniadi

Amar

2023

IOP Conf. Ser.: Earth Environ. Sci.

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This research is motivated by the high level of carbon emission due to the dominance of non-renewable energy consumption in the use of the energy mix. This study aims to fill the gaps in previous research to support global programs in reducing carbon emission by designing scenario through a shift in consumption of non-renewable energy (fuel oil) to renewable energy (biofuel oil) in the Asia Pacific for future periods, including 2023-2030. The basic foundation of this research is the result of panel regression during the period 2006-2021. Furthermore, non-renewable energy consumption was reduced to three categories (pessimistic, moderate and optimistic), then the decrease was substituted for renewable energy so that the community’s energy needs were still met. The important finding from this research is the consumption of renewable energy and green economic growth can reduce carbon emission, while the consumption of non-renewable energy increases carbon emission. In addition, average carbon emission decreased growth in each scenario, including 15% on the pessimistic, 32% on the moderate and 66% on the optimistic. The policy for reducing carbon emission is to strengthen coordination between domestic institutional structures to develop alternative energy and also implement green economy programs in economic activities.

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Section: Introductionmentioning

confidence: 99%

Scenario of reducing carbon emission through shifting consumption of non-renewable energy to renewable energy in asia pacific 2023-2030

Aimon

Kurniadi

Amar

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Numerous studies have focused on improving the efficiency and reducing the emissions of CPUs. [2][3][4] However, it seems difficult to further improve the efficiency of conventional CPUs to a satisfactory level due to the characteristics of the steam Rankine cycle and material limitations. 5 Therefore, developing an alternative power cycle is necessary.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and economic comparison of supercritical carbon dioxide coal‐fired power system with different improvements

et al. 2021

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The supercritical carbon dioxide (SCO 2 ) Brayton cycle is expected to become the new generation of power cycle for coal-fired power units. Most previous studies on system and parameter optimizations of SCO 2 power systems aimed to improve thermal performance, and some of them also involved the economic performance evaluation of the configurations they proposed. However, the configurations included in previous economic analyses are limited, and the models used in different papers are different. Although many improved configurations of SCO 2 coal-fired power generation system have been proposed, currently, there is a lack of comparison under the unified thermal-economic evaluation standard. Thus, this study focuses on the economic optimization and comparison of the performances of different advanced configurations of SCO 2 coal-fired power systems under the unified standard. Thermodynamic and economic optimization models are developed, and various configurations are proposed, representing improvements from four aspects (mediumtemperature flue gas heat utilization, reheating, waste heat recovery, and main compressor intercooling) based on a recompression system. The system parameters are also economically optimized with the genetic algorithm. Results show that integrating the SCO 2 benchmark cycle, medium temperature economizer, single-reheat, flue bypass, low temperature economizer and main compressor intercooling into the coal-fired power unit yields excellent thermo-economic performance. This configuration has the highest power generation efficiency of 47.93% and the lowest levelized cost of electricity of 0.0540 USD kW −1 hour −1 compared to others. Furthermore, the influences of specific parameters on power generation cost are analyzed.

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“…The results provide a valuable improvement on previous co-firing studies that address related topics. This includes slagging and fouling (Ghazidin et al, 2023a;Hafizh et al, 2023;Hariana, Prismantoko, et al, 2023;Novendianto et al, 2024;Putra et al, 2024;Putra, Kuswa, Ghazidin, et al, 2023;Suyatno et al, 2023a), economic and environmental effect (Mo et al, 2023), carbon emission reduction and management (Aviso et al, 2020;Sun et al, 2021;Xie et al, 2023), flame characteristic and stability (Lu et al, 2008), and change in energy (Mehmood et al, 2012).…”

Section: Wood Bark Characteristicmentioning

confidence: 99%

A techno-economic and environmental analysis of co-firing implementation using coal and wood bark blend at circulating fluidized bed boiler

Cahyo,

Sulistyowati,

Rahmanta

et al. 2024

Int. J. Renew. Energy Dev.

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The study aimed to explore the effects of biomass co-firing of coal using acacia wood bark at circulating fluidized bed (CFB) boiler coal-fired power plant with 110 MWe capacity. The analysis focused on main equipment parameters, including the potential for slagging, fouling, corrosion, agglomeration, fuel cost, and specific environmental factors. Initially, coal and acacia wood bark fuel were blended at a 3% mass ratio, with calorific values of 8.59 MJ/kg and 16.59 MJ/kg, respectively. The corrosion due to chlorine and slagging potential when using wood bark was grouped into the minor and medium categories. The results showed that co-firing at approximately 3% mass ratio contributed to changes in the upper furnace temperature due to the variation in heating value, high total humidity, and a less homogeneous particle size distribution. Significant differences were also observed in the temperature of the lower furnace area, showing the presence of a foreign object covering the nozzle, which disturbed the ignition process. A comparison of the seal pot temperature showed imbalances as observed from the temperature indicators installed on both sides of boiler, with specific fuel consumption (SFC) increasing by approximately 0.17%. During the performance test, the price of acacia wood bark was 0.034 USD/kg, resulting in fuel cost of 0.023355 USD/kWh, adding 0.061 cent/kWh to coal firing cost. Despite co-firing, the byproducts of the combustion process, such as SO2 and NOx, still met environmental quality standards in accordance with government regulations. However, a comprehensive medium- and long-term impact evaluation study should be carried out to implement co-firing operations using acacia wood bark at coal-fired power plant. Based on the characteristics, such as low calorific value, with high ash, total moisture, and alkali, acacia wood bark showed an increased potential to cause slagging and fouling.

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A biomass-coal co-firing based bi-level optimal approach for carbon emission reduction in China

Cited by 23 publications

References 53 publications

Scenario of reducing carbon emission through shifting consumption of non-renewable energy to renewable energy in asia pacific 2023-2030

Scenario of reducing carbon emission through shifting consumption of non-renewable energy to renewable energy in asia pacific 2023-2030

Thermodynamic and economic comparison of supercritical carbon dioxide coal‐fired power system with different improvements

A techno-economic and environmental analysis of co-firing implementation using coal and wood bark blend at circulating fluidized bed boiler

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