Comparative life cycle assessment of two different SOFC-based cogeneration systems with thermal energy storage integrated into a single-family house nanogrid

Florio, Giuseppe Di; Macchi, Edoardo Gino; Mongibello, Luigi; Baratto, Maria Camilla; Basosi, Riccardo; Busi, Elena; Caliano, Martina; Cigolotti, Viviana; Testi, Matteo; Trini, Martina

doi:10.1016/j.apenergy.2020.116378

Cited by 26 publications

(18 citation statements)

References 43 publications

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“…The annual thermal and electrical demand has been taken from [14]. Here, the house energy demand was estimated by simulation with TRNSYS software.…”

Section: Electrical and Thermal Load: User Load Profilesmentioning

confidence: 99%

“…Domestic hot water hourly energy demand is also included in the computation but it is assumed to be constant for each day of the year. Further information is available in [14].…”

Section: Electrical and Thermal Load: User Load Profilesmentioning

confidence: 99%

“…The thermal power generated is stored in a hot water tank, including an auxiliary electric heater. In Di Florio et al (2021) [14] system operation has been simulated, on an hourly basis over one year, following a two-step procedure and the main results of the simulation are shown in Table 2. The r-SOFC operates with 0.70 kW power and its total efficiency is equal to 46.9 %, while in electrolyser mode its maximum power is 5 kW.…”

Section: Systems Layoutmentioning

confidence: 99%

“…where ic is defined as the environmental impact category and LCA score are obtained from LCA analysis of the different systems [14] and of the base case. Monetization factors are summarized in Table 6.…”

Section: Externalitiesmentioning

confidence: 99%

“…In fact, hydrogen is deemed as a key contributor to solve the challenges posed by the European Union, offering a future solution with several advantages [13]. While environmental sustainability of SOFC systems, based on LCA, is widely discussed in literature ( [14] and references therein), there are only few studies that merge a complete environmental analysis with an economic one: Strazza et al (2015) evaluated a 230 kW SOFC system and compared it with a conventional technology, combining both LCA and LCC. Their results are presented in a toolbox embedding eight sustainability indicators for decision making and show that the SOFC system presents benefits for household application.…”

Section: Introductionmentioning

confidence: 99%

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Economic Analysis of Hydrogen Household Energy Systems Including Incentives on Energy Communities and Externalities: A Case Study in Italy

et al. 2021

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The building sector is one of the key energy consumers worldwide. Fuel cell micro-Cogeneration Heat and Power systems for residential and small commercial applications are proposed as one of the most promising innovations contributing to the transition towards a sustainable energy infrastructure. For the application and the diffusion of these systems, in addition to their environmental performance, it is necessary, however, to evaluate their economic feasibility. In this paper a life cycle assessment of a fuel cell/photovoltaic hybrid micro-cogeneration heat and power system for a residential building is integrated with a detailed economic analysis. Financial indicators (net present cost and payback time are used for studying two different investments: reversible-Solid Oxide Fuel Cell and natural gas SOFC in comparison to a base scenario, using a homeowner perspective approach. Moreover, two alternative incentives scenarios are analysed and applied: net metering and self-consumers’ groups (or energy communities). Results show that both systems obtain annual savings, but their high capital costs still would make the investments not profitable. However, the natural gas Solide Oxide Fuel Cell with the net metering incentive is the best scenario among all. On the contrary, the reversible-Solid Oxide Fuel Cell maximizes its economic performance only when the self-consumers’ groups incentive is applied. For a complete life cycle cost analysis, environmental impacts are monetized using three different monetization methods with the aim to internalize (considering them into direct cost) the externalities (environmental costs). If externalities are considered as an effective cost, the natural gas Solide Oxide Fuel Cell system increases its saving because its environmental impact is lower than in the base case one, while the reversible-Solid Oxide Fuel Cell system reduces it.

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“…The annual thermal and electrical demand has been taken from [14]. Here, the house energy demand was estimated by simulation with TRNSYS software.…”

Section: Electrical and Thermal Load: User Load Profilesmentioning

confidence: 99%

“…Domestic hot water hourly energy demand is also included in the computation but it is assumed to be constant for each day of the year. Further information is available in [14].…”

Section: Electrical and Thermal Load: User Load Profilesmentioning

confidence: 99%

Section: Systems Layoutmentioning

confidence: 99%

Section: Externalitiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Economic Analysis of Hydrogen Household Energy Systems Including Incentives on Energy Communities and Externalities: A Case Study in Italy

et al. 2021

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Valence regulation of ferrite perovskite for high performance cobalt‐free cathode of solid oxide fuel cell

Liu

Fang

Wang

et al. 2022

Intl J of Energy Research

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The development of a cobalt-free cathode with long-term stability and high electrochemical activity is important for constructing low-cost and robust solid oxide fuel cells (SOFCs). Here, we report performance enhancement of a cobalt-free cathode achieved by valence regulation of the ferrite-based perovskite. Utilizing co-doping of high valence niobium with low valence nickel, we developed a cathode material La 0.8 Sr 0.2 Fe 0.8 Ni 0.15 Nb 0.05 O 3Àδ that allowed representing adequate conductivity of 214 S cm À1 at 700 C, decent thermal compatibility with thermal expansion coefficient being 12 Â 10 À6 K À1 , superior electrochemical properties manifested by area-specific resistance of 0.06 Ω cm 2 and peak power density of 760 mW cm À2 at 800 C, and excellent discharge durability of over 480 h at a current density of 460 mA cm À2 under 750 C. This significantly enhanced performance originates from a proper regulation of the electronic structure rendered by synergistic effects induced by the co-doping of the high valence niobium with low valence nickel into the B sites of the ferrite perovskite. Such a regulation enables an optimized compromise among the oxygen vacancies, electronic mobility, oxygen adsorption and dissociation, and strontium segregation.

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Green agro storage and electric vehicle integrated nano grid for rural livelihood improvement: a detailed review and case analysis

Nadimuthu,

Victor,

Karthikeyan

et al. 2024

J Therm Anal Calorim

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Livelihood improvement in the rural areas is the key parameters to achieve the Sustainable Development Goals. This paper attempts the livelihood improvement in rural areas through green energy technologies. The manuscript comprises a detailed review of electric vehicles with unique features of micro cold storage and vehicle-to-grid technologies. A critical analysis of the intrinsic properties of thermoelectric cooler-based micro cold storage for better material selection, performance, and optimization techniques for effective electric vehicle integration is reported. The manuscript encapsulates the thermoelectric intrinsic parameters like Seebeck coefficient (S), electrical conductivity (σ), thermal conductivity (K), and figure of merit (ZT) parameters with coefficient of performance and cooling capacity (QC) for different types of thermoelectric modules. The review narrows down into suitable parameters for effective combined system design, such as optimal operating voltage (Vopt) and current (Iopt). The manuscript further reviewed and presented the V2G-enabled nanogrid, control, and grid integration techniques for better-integrated operation. This paper reported an experimental investigation on the designed and developed green agro storage integrated V2G enabled nano grid for a rural village in India. The case analysis was carried out by short distance agro produce transportation, decentralized DC–DC control, and phase-locked loop grid synchronization technique. The electrical, thermal and dynamic system characteristics study was carried out and reported. Also, the manuscript highlights the potential strengths, challenges, opportunities and research gaps for the stakeholders to build a sustainable future. The proposed combined system design will pave a sustainable pathway for achieving sustainable development goals.

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Comparative life cycle assessment of two different SOFC-based cogeneration systems with thermal energy storage integrated into a single-family house nanogrid

Cited by 26 publications

References 43 publications

Economic Analysis of Hydrogen Household Energy Systems Including Incentives on Energy Communities and Externalities: A Case Study in Italy

Economic Analysis of Hydrogen Household Energy Systems Including Incentives on Energy Communities and Externalities: A Case Study in Italy

Valence regulation of ferrite perovskite for high performance cobalt‐free cathode of solid oxide fuel cell

Green agro storage and electric vehicle integrated nano grid for rural livelihood improvement: a detailed review and case analysis

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