Energy, exergy and exergo-environmental impact assessment of a solid oxide fuel cell coupled with absorption chiller &amp; cascaded closed loop ORC for multi-generation

Adebayo, Victor; Abid, Muhammad; Adedeji, Michael; Ratlamwala, Tahir Abdul Hussain

doi:10.1016/j.ijhydene.2021.02.222

Cited by 39 publications

(6 citation statements)

References 46 publications

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“…The result of exergoenvironmental modelling showed that the impact index factors of a single flash and dry steam geothermal power plant are about 0.69 and 0.46, respectively (Supplementary Table S15). This indicates a better exergo-environmental performance of the system concerning its unusable waste exergy output and exergy destruction [66]. Furthermore, the improvement in the previous index is estimated to be 1.18 for the dry steam geothermal power plant, while it is 0.45 for a single flash geothermal power plant.…”

Section: Overall Comparisonmentioning

confidence: 91%

Economic Feasibility of Green Hydrogen Production by Water Electrolysis Using Wind and Geothermal Energy Resources in Asal-Ghoubbet Rift (Republic of Djibouti): A Comparative Evaluation

et al. 2021

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The Republic of Djibouti has untapped potential in terms of renewable energy resources, such as geothermal, wind, and solar energy. This study examines the economic feasibility of green hydrogen production by water electrolysis using wind and geothermal energy resources in the Asal–Ghoubbet Rift (AG Rift), Republic of Djibouti. It is the first study in Africa that compares the cost per kg of green hydrogen produced by wind and geothermal energy from a single site. The unit cost of electricity produced by the wind turbine (0.042 $/kWh) is more competitive than that of a dry steam geothermal plant (0.086 $/kWh). The cost of producing hydrogen with a suitable electrolyzer powered by wind energy ranges from $0.672/kg H2 to $1.063/kg H2, while that produced by the high-temperature electrolyzer (HTE) powered by geothermal energy ranges from $3.31/kg H2 to $4.78/kg H2. Thus, the AG Rift area can produce electricity and green hydrogen at low-cost using wind energy compared to geothermal energy. The amount of carbon dioxide (CO2) emissions reduced by using a “Yinhe GX113-2.5MW” wind turbine and a single flash geothermal power plant instead of fuel-oil generators is 2061.6 tons CO2/MW/year and 2184.8 tons CO2/MW/year, respectively.

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Section: Overall Comparisonmentioning

confidence: 91%

Economic Feasibility of Green Hydrogen Production by Water Electrolysis Using Wind and Geothermal Energy Resources in Asal-Ghoubbet Rift (Republic of Djibouti): A Comparative Evaluation

et al. 2021

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“…In this study, exergoenvironmental sustainability analysis is conducted in this part based on the exergy destruction rate and exergy efficiency [50].…”

Section: Sustainability Analysismentioning

confidence: 99%

Energy, exergy, sustainability, and economic analysis of a waste heat recovery for a heavy fuel oil-based power plant using Kalina cycle integrated with Rankine cycle

Rahman,

Bandhan,

Husna

et al. 2024

Preprint

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In this study, a comparative analysis of the thermodynamic, exergy, economic, and environmental aspects of high-temperature Kalina cycle and the Rankine cycle integrated with the Kalina cycle has been investigated. The Kalina cycle either stand-alone or in combination with the Rankine cycle is examined using the diesel engine waste heat from the Katakhali 50 MW HFO-based peaking powerplant, Bangladesh as the heat source. EBSILON Professional software is used for simulation and finding out various state conditions of the cycle, whereas the engineering equation solver (EES) is used for parametric analysis. Results from this analysis indicate that a combined cycle can provide 348 kW more power output at an electricity cost of only 0.0175 $/kWh than stand-alone Kalina cycle. The combined cycle produces around 4075 kW with 27% and 59% as energy and exergy efficiencies, respectively. Meanwhile, the stand-alone cycle offers 3725 kW with 25% and 54% energy and exergy efficiencies. Economic analysis results show that the combined cycle involves capital costs of approximately $370,000 lower than the stand-alone Kalina cycle, primarily due to its high energy conversion. The payback period for the combined cycle is 1.94 years whereas 2.41 years for the stand-alone cycle. In addition, the combined cycle is almost 60% more environmentally sustainable. The best operating condition for the suggested configurations is set by parametric analysis to determine the high output power with low electricity cost. Finally, it can be concluded that the proposed model can be an effective combined model to generate power by recovering waste heat for the power plants operating in Bangladesh.

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“…Additionally, Adebayo et al. ( Adebayo et al., 2022 ) employed this approach to assess a multi-generation energy system that produces electricity, cooling, domestic hot water, and hydrogen. Effects of several parameters on the system performance were examined and those that were unfavourable to the environmental sustainability of the system were identified.…”

Section: Exergy-based Life Cycle Assessmentmentioning

confidence: 99%

A review of conventional and exergetic life cycle assessments of organic Rankine cycle plants exploiting various low-temperature energy resources

Oyekale

Emagbetere

2022

Heliyon

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Energy, exergy and exergo-environmental impact assessment of a solid oxide fuel cell coupled with absorption chiller & cascaded closed loop ORC for multi-generation

Cited by 39 publications

References 46 publications

Economic Feasibility of Green Hydrogen Production by Water Electrolysis Using Wind and Geothermal Energy Resources in Asal-Ghoubbet Rift (Republic of Djibouti): A Comparative Evaluation

Economic Feasibility of Green Hydrogen Production by Water Electrolysis Using Wind and Geothermal Energy Resources in Asal-Ghoubbet Rift (Republic of Djibouti): A Comparative Evaluation

Energy, exergy, sustainability, and economic analysis of a waste heat recovery for a heavy fuel oil-based power plant using Kalina cycle integrated with Rankine cycle

A review of conventional and exergetic life cycle assessments of organic Rankine cycle plants exploiting various low-temperature energy resources

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