Renewable smart energy network: A thermoeconomic comparison between conventional lithium-ion batteries and reversible solid oxide fuel cells

Calise, Francesco; Cappiello, Francesco Liberato; Cimmino, Luca; d’Accadia, Massimo Dentice; Vicidomini, Maria

doi:10.1016/j.renene.2023.05.090

Cited by 19 publications

(5 citation statements)

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“…In addition, the oxygen produced by the r-SOFC operating in the electrolyzer mode is exported at a specific price of 2.00 EUR/kg (Table 1 [46]). Then, despite the high capital costs, an interesting payback period of 6.13 years was obtained.…”

Section: Resultsmentioning

confidence: 99%

“…Given the high temperature level at the outlet of the electrodes, both the cathodic stream and anodic stream are used to produce steam by means of two heat recovery steam generators, namely HRSG-1 and HRSG-2, as shown in Figure 2A. The control strategy for managing HRSG-1 and HRSG-2 is discussed in detail in reference [46]. Note that an auxiliary steam heater (A-SH Figure 2A) is considered to achieve the setpoint temperature of the steam to be delivered to the cathode equal to 800 • C. The temperatures of the anodic and cathodic streams exiting the two heat recovery steam generators (Figure 2A) range from 90 • C to 110 • C. Therefore, a cooling process is considered in order to reduce the compressor's electricity demand.…”

Section: System Layout4mentioning

confidence: 99%

“…For these reasons, given the high natural gas purchasing cost, i.e., jNG 1.30 EUR/Sm 3 , the proposed layout leads to significant economic savings. In addition, the oxygen produced by the r-SOFC operating in the electrolyzer mode is exported at a specific price of 2.00 EUR/kg (Table 1 [46]). Then, despite the high capital costs, an interesting payback period of 6.13 years was obtained.…”

Section: Sensitivity Analysismentioning

confidence: 99%

“…However, as the cell capacity rises beyond 4.00 MW, the R renew index dramatically worsens. This result relies on the minimum activation power needed to drive the cell; this power is assumed to be equal to 30% of the cell's rated capacity [46,76,[79][80][81]. Therefore, when the capacity of the cell is 6.00 MW, the electricity delivered to the cell is reduced.…”

Section: Sensitivity Analysismentioning

confidence: 99%

“…ically worsens. This result relies on the minimum activation power needed to driv cell; this power is assumed to be equal to 30% of the cell's rated capacity [46,76,79 Therefore, when the capacity of the cell is 6.00 MW, the electricity delivered to the c reduced. This trend is also clearly explained in Figure 7.…”

Section: Sensitivity Analysismentioning

confidence: 99%

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A Novel Layout for Combined Heat and Power Production for a Hospital Based on a Solid Oxide Fuel Cell

Calise,

Cappiello,

Cimmino

et al. 2024

Energies

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This paper addresses the problem of the reduction in the huge energy demand of hospitals and health care facilities. The sharp increase in the natural gas price, due to the Ukrainian–Russian war, has significantly reduced economic savings achieved by combined heat and power (CHP) units, especially for hospitals. In this framework, this research proposes a novel system based on the integration of a reversible CHP solid oxide fuel cell (SOFC) and a photovoltaic field (PV). The PV power is mainly used for balancing the hospital load. The excess power production is exploited to produce renewable hydrogen. The SOFC operates in electrical tracking mode. The cogenerative heat produced by the SOFC is exploited to partially meet the thermal load of the hospital. The SOFC is driven by the renewable hydrogen produced by the plant. When this hydrogen is not available, the SOFC is driven by natural gas. In fact, the SOFC is coupled with an external reformer. The simulation model of the whole plant, including the reversible SOFC, PV, and hospital, is developed in the TRNSYS18 environment and MATLAB. The model of the hospital is calibrated by means of measured data. The proposed system achieves very interesting results, with a primary energy-saving index of 33% and a payback period of 6.7 years. Therefore, this energy measure results in a promising solution for reducing the environmental impact of hospital and health care facilities.

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Section: Resultsmentioning

confidence: 99%

Section: System Layout4mentioning

confidence: 99%

Section: Sensitivity Analysismentioning

confidence: 99%