Energetic, exergetic and economic (3E) investigation of biomass gasification-based power generation system employing molten carbonate fuel cell (MCFC), indirectly heated air turbine and an organic Rankine cycle

Roy, Dibyendu; Samanta, Samiran; Ghosh, Sudip

doi:10.1007/s40430-019-1614-1

Cited by 19 publications

(5 citation statements)

References 39 publications

(46 reference statements)

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“…Steam cycle [27] HP turbine inlet temperature and pressure 537 °C and 242. Temperature rise across the stack 150 K [30] ORC [41] Working fluid R245fa…”

Section: Methodsmentioning

confidence: 99%

Thermodynamic and Economic Analysis of a Standalone Supercritical Thermal Power Plant Integrated with Molten Carbonate Fuel Cell

Deep,

Karmakar

2024

Energy Tech

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A detailed technoeconomic analysis of a standalone steam cycle integrated with molten carbonate fuel cell and an organic Rankine cycle is presented herein. The modeling and thermodynamic analysis of the proposed plant is performed using a commercially available software tool called Cycle Tempo. The response surface methodology tool is employed to develop regression models to predict the plant's energy, exergy efficiencies, and levelized cost of electricity (LCOE) for varying independent factors: fuel utilization factor (uf) CO2 utilization factor (ϕ), and current density (i) of the fuel cell. The response surfaces developed from the models are used to conduct the parametric analyses on the plant. The desirability test performed for multiobjective optimization has shown the optimum plant configuration, with higher energy, exergy efficiencies, and a lower LCOE is obtained for uf = 0.85, ϕ = 60%, and i = 1000 A m−2 With an intent to reduce CO2 emissions, monoethanolamine‐based carbon capture system is implemented to the plant configuration, that exhibits maximum energy efficiency for ϕ = 90%, and results in an LCOE of 6.53 Rs kWh−1.

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“…Steam cycle [27] HP turbine inlet temperature and pressure 537 °C and 242. Temperature rise across the stack 150 K [30] ORC [41] Working fluid R245fa…”

Section: Methodsmentioning

confidence: 99%

Thermodynamic and Economic Analysis of a Standalone Supercritical Thermal Power Plant Integrated with Molten Carbonate Fuel Cell

Deep,

Karmakar

2024

Energy Tech

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“…The maximum efficiency for biogas production using anaerobic digestion is 28% [105], and if the efficiency of a gas turbine is 30% to 40%, the overall efficiency range could increase by 8.4 to 11.2%. Depending on the type of turbine used, gasification technology can achieve efficiencies of 10-27%, or 30-40% for advanced gasification [106]. In most cases, a gas turbine can be used to convert landfill gas into electricity.…”

Section: Technical and Environmental Impact Of Wte Technologiesmentioning

confidence: 99%

“…In most cases, a gas turbine can be used to convert landfill gas into electricity. Based on their findings, the authors of [106] agree that landfill gas is rich in methane (40-60%) and thus has great potential for power generation (58%) and should be treated as a valuable resource. In terms of feedstock or waste types, incineration stands out for its ability to process a wide range of waste types.…”

Section: Technical and Environmental Impact Of Wte Technologiesmentioning

confidence: 99%

Unlocking Energy from Waste: A Comprehensive Analysis of Municipal Solid Waste Recovery Potential in Ghana

Tahiru,

Cobbina,

Asare

et al. 2024

World

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Ghana is currently facing a waste crisis that presents considerable risks to its environment, economy, and public health. This investigation evaluates four prospective waste-to-energy options—namely, incineration, anaerobic digestion, gasification, and landfill gas—with the objective of mapping out a sustainable strategy for efficient waste management. Among these solutions, anaerobic digestion stands out as a superior option, offering renewable energy production, valuable bio-product creation, and a comparatively lower greenhouse gas emission effect. A cost analysis further reveals that utilizing biogas from anaerobic digestion is not only environmentally friendly but also economically more viable than relying on light crude oil. Producing 200 MW of energy using biogas costs 36% less, potentially resulting in monthly savings of USD 5.46 million for Ghana. However, several obstacles impede the development of WtE. Inaccurate waste data and a lack of clear policies on waste-to-energy hinder the harnessing of Ghana’s WtE potential. To address this, the study recommends (1) implementing a well-defined national strategy complete with regulations and incentives to attract investments and (2) conducting specialized research to optimize WtE technologies for Ghana’s unique waste composition and context. By surmounting these challenges, Ghana stands poised to secure a sustainable future, simultaneously meeting the targets of Sustainable Development Goals 7 and 11. This entails ensuring access to affordable, reliable, sustainable, and modern energy for all (SDG 7) and fostering inclusive, safe, resilient, and sustainable cities and human settlements (SDG 11).

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“…The discount rate is calculated as [45,46] where f o and N o represent the annual inflation rate and nominal interest rate, respectively. Total overnight capital is given by where Z TPC denotes the total plant cost.…”

Section: Economic Modelmentioning

confidence: 99%

Thermo-economic assessment of a hybrid tri-generation system making simultaneous use of biomass and solar energy

Chattopadhyay

Ghosh

2020

J Braz. Soc. Mech. Sci. Eng.

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In this work, a tri-generation system is proposed that relies on a biomass-gasification-based externally fired gas turbine (EFGT) generator and an array of solar flat-plate collectors. A LiBr-water-based absorption cooling (VAR) system utilizes the waste heat of a 100-kW power generator as well as solar thermal energy of a 200 sq. m. solar collector to run a vegetable cold store of 200 metric ton capacity. A domestic water-heating system is also integrated with the unit that recovers low-temperature thermal energy to produce 150 tons of hot water daily. The power generator shows its maximum electrical efficiency of 27.5% at 1100 °C turbine inlet temperature and 10 pressure ratio. The maximum efficiency of solar collector is found to be 48%. The overall energetic efficiency of the tri-generation system varies in the range of 59 to 76%, while the overall exergetic efficiency varies in the range of 19 to 26.5%. The components of EFGT generator show high exergetic efficiencies, about 93% for air compressor and about 90% for GT, whereas the solar thermal system shows the poor exergetic performance of about 17%. Based on economic analysis of the proposed plant, the effective price of electricity is estimated as 0.068 USD/kWh without any subsidy, but considering 50% capital subsidy the price is estimated as 0.04 USD/kWh. The discounted payback period is found to be 10.8 years without any capital subsidy, but when 50% subsidy is considered, the payback period is reduced to 5 years.

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Energetic, exergetic and economic (3E) investigation of biomass gasification-based power generation system employing molten carbonate fuel cell (MCFC), indirectly heated air turbine and an organic Rankine cycle

Cited by 19 publications

References 39 publications

Thermodynamic and Economic Analysis of a Standalone Supercritical Thermal Power Plant Integrated with Molten Carbonate Fuel Cell

Thermodynamic and Economic Analysis of a Standalone Supercritical Thermal Power Plant Integrated with Molten Carbonate Fuel Cell

Unlocking Energy from Waste: A Comprehensive Analysis of Municipal Solid Waste Recovery Potential in Ghana

Thermo-economic assessment of a hybrid tri-generation system making simultaneous use of biomass and solar energy

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