Combined biomass gasification, SOFC, IC engine, and waste heat recovery system for power and heat generation: Energy, exergy, exergoeconomic, environmental (4E) evaluations

Wu, Zhen; Zhu, Pengfei; Yao, Jing; Zhang, Shengan; Ren, Jianwei; Yang, Fusheng; Zhang, Zaoxiao

doi:10.1016/j.apenergy.2020.115794

Cited by 181 publications

(30 citation statements)

References 60 publications

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“…In Table 7 are presented the main advantages and disadvantages of the most studied materials (Ni-YSZ and Ni-GDC). These two anode materials have been investigated to its possible use in the SOFC integrated with the biomass gasification and gas cleaning systems [2,61,78,80,86,88,89]. Some of these studies were more focused on the gasification process and gas cleaning in order to meet the requirements of the SOFC for the CHP production, others on the SOFC improvement with the aim of reducing the need of a severe syngas cleaning step.…”

Section: Development Of New Materialsmentioning

confidence: 99%

“…Simultaneously, there has been important research effort to develop efficient small scale CHP systems that can use the syngas, produced in gasification processes, in internal combustion engines, microgas turbines or FCs. The conventional small-scale CHP generation (100 kWe to 1 MWe size) based on lignocellulosic biomass consists of two main pathways: biomass gasification or pyrolysis connected to an internal combustion engine (ICE) and to a microgas turbine (MGT); direct combustion in grate or fluidized bed boilers coupled with MGT, Stirling engines, steam turbines or organic Rankine cycle (ORC) [89]. As stated before, currently, the research effort has been especially centralized on the combination of biomass gasification and SOFCs.…”

Section: Chp Technologiesmentioning

confidence: 99%

“…Exergetic and economic methods were used to evaluate the proposed system [60]. The same authors had proposed, in another study, a single system combining a downdraft biomass gasifier integrated with the gas cleaning unit, SOFC, EFGT and ORC [89,96]. The main difference was the introduction of an ORC in order to recover the residual heat available in the hot exhaust gas coming out from the secondary heat exchanger.…”

Section: Chp Technologiesmentioning

confidence: 99%

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Integration of Gasification and Solid Oxide Fuel Cells (SOFCs) for Combined Heat and Power (CHP)

et al. 2021

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This paper reviews the most recent information about the main operations to produce energy from carbonaceous materials, namely biomass and wastes through the integration of gasification, syngas cleaning and solid oxide fuel cells (SOFCs), which have shown to be a good option for combined heat and power (CHP) production, due to high efficiency and low environmental impact. However, some challenges still need to be overcome, mainly when mixed feedstocks with high contents of hazardous contaminants are used, thus syngas cleaning and conditioning is of major importance. Another drawback is SOFC operation, hence new materials especially for the anode has been proposed and tested. An overall process to produce CHP by gasification integration with SOFC is proposed.

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Section: Development Of New Materialsmentioning

confidence: 99%

Section: Chp Technologiesmentioning

confidence: 99%

Section: Chp Technologiesmentioning

confidence: 99%

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Integration of Gasification and Solid Oxide Fuel Cells (SOFCs) for Combined Heat and Power (CHP)

et al. 2021

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“…The outcomes indicated that for the assumed input values as the base case, the system's total exergy destruction and energy efficiency are 397 kW and 64.2%, respectively. In a recent study, the potential of SOFC systems to be combined with gasifiers and other systems has been investigated by Wu et al 13 …”

Section: Introductionmentioning

confidence: 99%

Exergoeconomic and environmental optimisations of multigeneration biomass‐based solid oxide fuel cell systems with reduced CO ₂ emissions

2021

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Summary In this research, four multigeneration systems comprising of a syngas‐fuelled solid oxide fuel cell, double‐effect absorption chiller (first configuration), a thermoelectric generator unit (second system), solid oxide electrolyser cell (third configuration), and fuel synthesis unit (fourth configuration) are proposed for cooling, heating, electricity, and hydrogen/synthetic methane production. In Configurations 1 to 3, 25% of the discharged CO2 is reinjected into the gasifier, whereas an additional portion is reused in Configuration 4 for synthetic methane production. Energy, exergy, exergoeconomic, and environmental (4E) analyses are conducted comprehensively. Besides, optimisation based on the genetic algorithm is applied to optimise the system through four different modes, for example, maximum efficiency, minimum product, cost, and cost‐rate. The results show that the second system has the highest exergy efficiency and power output while having the minimum product cost. Configurations 3 and 4 are capable of fuel production, while Configuration 4 concludes the least levelised CO2 emissions; however, having the highest total product cost. The proposed systems have some advantages and drawbacks, so selecting a suitable system depends on the perspective of decision‐makers.

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“…Another study showed that gas from biomass is a promising energy source for fuel cells, which are not limited by the Carnot cycle efficiency, and that power generation by fuel cells is relatively clean, quiet, and reliable [12]. A hybrid system coupling with biomass gasification and high-temperature fuel cells thus offers a possibly profitable way to utilize biomass energy [13].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Analysis of a Solid Oxide Fuel Cell Based Combined Cooling, Heating, and Power System Integrated with Biomass Gasification

Cui

Wang

Lior

2021

Entropy

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A novel cooling, heating, and power system integrated with a solid oxide fuel cell and biomass gasification was proposed and analyzed. The thermodynamic models of components and evaluation indicators were established to present energetic and exergetic analysis. After the validations of thermodynamic models, the system performances under design work conditions were evaluated. The proposed system’s electrical, energy, and exergy efficiencies reached up to 52.6%, 68.0%, and 43.9%, respectively. The gasifier and fuel cell stack were the most significant components of exergy destruction in this system, accounting for 41.0% and 15.1%, respectively, which were primarily caused by the gasification and electrochemical reactions’ irreversibility. The influences of the key parameters of the ratio of steam to biomass mass flow rate (S/B), the biomass flow rate (Mbio), and the temperature and pressure of the fuel cell (Top and Psofc) on system energy performances were analyzed: doubling S/B (from 0.5 to 1.0) reduced the energy efficiency by 5.3%, while increasing the electrical efficiency by 4.6% (from 52.6% to 55.0%) and raising the biomass mass flow rate by 40% increased the energy and exergy efficiencies by 2.4% and 2.1%, respectively. When raising the SOFC operating temperature by 31.3%, the energy and exergy efficiencies rose by 61.2% (from 50.0% to 80.6%) and 45.1% (from 32.8% to 47.6%), respectively, but this likely would result in a higher operating cost. Increasing the SOFC pressure from 2 to 7 bar increased the electrical efficiency by 10.6%, but additional energy for pumping and compression was consumed.

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Combined biomass gasification, SOFC, IC engine, and waste heat recovery system for power and heat generation: Energy, exergy, exergoeconomic, environmental (4E) evaluations

Cited by 181 publications

References 60 publications

Integration of Gasification and Solid Oxide Fuel Cells (SOFCs) for Combined Heat and Power (CHP)

Integration of Gasification and Solid Oxide Fuel Cells (SOFCs) for Combined Heat and Power (CHP)

Exergoeconomic and environmental optimisations of multigeneration biomass‐based solid oxide fuel cell systems with reduced CO ₂ emissions

Thermodynamic Analysis of a Solid Oxide Fuel Cell Based Combined Cooling, Heating, and Power System Integrated with Biomass Gasification

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Combined biomass gasification, SOFC, IC engine, and waste heat recovery system for power and heat generation: Energy, exergy, exergoeconomic, environmental (4E) evaluations

Cited by 181 publications

References 60 publications

Integration of Gasification and Solid Oxide Fuel Cells (SOFCs) for Combined Heat and Power (CHP)

Integration of Gasification and Solid Oxide Fuel Cells (SOFCs) for Combined Heat and Power (CHP)

Exergoeconomic and environmental optimisations of multigeneration biomass‐based solid oxide fuel cell systems with reduced CO 2 emissions

Thermodynamic Analysis of a Solid Oxide Fuel Cell Based Combined Cooling, Heating, and Power System Integrated with Biomass Gasification

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Exergoeconomic and environmental optimisations of multigeneration biomass‐based solid oxide fuel cell systems with reduced CO ₂ emissions