Thermodynamic assessment of a novel multi-generation solid oxide fuel cell-based system for production of electrical power, cooling, fresh water, and hydrogen

Haghghi, Maghsoud Abdollahi; Holagh, Shahriyar Ghazanfari; Chitsaz, Ata; Parham, Kiyan

doi:10.1016/j.enconman.2019.111895

Cited by 61 publications

(9 citation statements)

References 29 publications

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“…This limits Q ˙ev ORC to 76%, 51% and 52% of the absorbed PTSC energy (Q ˙= 18, 878kW in ), for ORC, ORC-IHE and RORC cycles, respectively and leaves 24%, 49% and 48% unused energy to KCS. To evaluate the impact of the KCS on the performance of the proposed trigeneration systems, thermodynamic characteristics are examined for two distinct configurations: (1) with KCS and (2) without KCS. The comparative results (Table 11) reveal a notable enhancement in the performance of the system across various thermodynamic criteria in the presence of KCS.…”

Section: Energy Divide Between Subsystemsmentioning

confidence: 99%

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Energetic/exergetic study of Kalina and refrigeration bottoming cycles on different solar‐driven organic Rankine cycles

Dehghan,

Akbari,

Montazerin

et al. 2024

Energy Science & Engineering

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Combination of different power cycle scenarios is of prime importance in achieving maximum energy utilization from solar‐driven multigeneration systems. To fulfill such objective, the present article proposes a novel energy distribution system, leveraging a combination of direct‐fed organic Rankine cycle (ORC) and a bottom‐cycled arrangement of Kalina cycle system (KCS) and double‐effect absorption refrigeration cycle (DEARC) within a parabolic trough solar collector powered trigeneration system. The study explores three different ORC configurations: simple ORC; ORC equipped with internal heat exchanger (ORC‐IHE) and regenerative ORC (RORC). It is shown that although higher efficiencies are achievable from a larger portion of PTSC energy absorbed by the ORC, the ORC energy absorption is limited by ORC evaporator temperature differences, and there is unused energy that can be recovered by the KCS, based on the proposed energy system. The results indicate that the addition of bottoming KCS leads to a considerable increase in the exergy efficiency of ORC, ORC‐IHE and RORC‐based systems by 11.7%, 30.7% and 32.6%, respectively. The impact of different ORC configurations, key ORC parameters and various organic working fluids on the energetic/exergetic efficiencies is also examined to find the optimal configuration. In terms of overall energetic/exergetic efficiencies, the highest performance belongs to ORC (78.4%/30.4%) while the lowest energetic and exergetic efficiencies belong to ORC‐IHE and RORC, respectively (56.3% and 25.65%). On the basis of a comparative study with the available literature, these values are higher than what is already reported for similar solar‐driven multigeneration systems. Appropriate thermal match and lower exergy destruction in the KCS, and bottoming cycle arrangement of the DEARC are the main reasons for such enhanced performance. This research not only contributes valuable insights into efficient solar‐driven systems but also sets a new benchmark for performance metrics in the existing literature.

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Section: Energy Divide Between Subsystemsmentioning

confidence: 99%

“…Substitution of fossil fuelbased energy conversion systems with clean and renewable energy alternatives is crucial to avoid or decline harmful global issues. 1 Among renewable energy sources, solar energy is promising and available.…”

Section: Introductionmentioning

confidence: 99%

Energetic/exergetic study of Kalina and refrigeration bottoming cycles on different solar‐driven organic Rankine cycles

Dehghan,

Akbari,

Montazerin

et al. 2024

Energy Science & Engineering

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“…It is evident that the essence of grid based management system is measuring the real-time data and from this point of view, it can be categorized in smart-grid classification. On the other hand, since water-related issues in terms of separation, heat integrated distillation, purification, process water removal/treatment, pumping and distribution are energy-intensive processes [92][93][94], then they are intimately connected to energy management systems such as smart grids.…”

Section: Smart Water Gridsmentioning

confidence: 99%

A Widespread Review of Smart Grids Towards Smart Cities

et al. 2019

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Nowadays, the importance of energy management and optimization by means of smart devices has arisen as an important issue. On the other hand, the intelligent application of smart devices stands as a key element in establishing smart cities, which have been suggested as the solution to complicated future urbanization difficulties in coming years. Considering the scarcity of traditional fossil fuels in the near future, besides their ecological problems the new smart grids have demonstrated the potential to merge the non-renewable and renewable energy resources into each other leading to the reduction of environmental problems and optimizing operating costs. The current paper clarifies the importance of smart grids in launching smart cities by reviewing the advancement of micro/nano grids, applications of renewable energies, energy-storage technologies, smart water grids in smart cities. Additionally a review of the major European smart city projects has been carried out. These will offer a wider vision for researchers in the operation, monitoring, control and audit of smart-grid systems.

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“…They examined the effect of climate conditions in different areas in China, resulting in better thermodynamic and environmental performances. The feasibility of integrating an ORC to recover the heat wasted by a high-temperature fuel cell and other integrated cycles was evaluated and thermodynamically analyzed by Haghghi et al (2019). They also provided environmental and economic analyses in another study; the results exhibited a sensible enhancement of the system's performance.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and economic analyses of natural gas combined cycle power plants with and without the presence of organic Rankine cycle

Feng

Zhu

Shi³

et al. 2023

Energy Exploration & Exploitation

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This study performs the simulation and energy, exergy, and economic analyses of an organic Rankine cycle (ORC) integrated with a natural gas combined cycle. Working fluids studied in this research are ammonia, isobutane, R-11, R-113, and R-141b. The power plant and ORC are simulated using Aspen HYSYS software. The results show that using the ORC leads to an improvement in the thermo-economic indexes of the combined cycle power plant. The sensitivity analysis also demonstrated that using ammonia and isobutane as working fluids results in the highest exergy destruction and the lowest exergy and energy efficiencies; therefore, they are unsuitable. On the other hand, a comparison of thermo-economic results illustrated that among the studied working fluids, R-113 is the desirable selection. According to the simulation, it is deduced that employing R-113 working fluid leads to the net power generation of the plant increasing by 2.48%, the cost of electricity decreasing by 10.75%, and the total energy efficiency of the power plant increasing by 6.02%.

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Thermodynamic assessment of a novel multi-generation solid oxide fuel cell-based system for production of electrical power, cooling, fresh water, and hydrogen

Cited by 61 publications

References 29 publications

Energetic/exergetic study of Kalina and refrigeration bottoming cycles on different solar‐driven organic Rankine cycles

Energetic/exergetic study of Kalina and refrigeration bottoming cycles on different solar‐driven organic Rankine cycles

A Widespread Review of Smart Grids Towards Smart Cities

Thermodynamic and economic analyses of natural gas combined cycle power plants with and without the presence of organic Rankine cycle

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