Analysis on energy efficiency and CO2 emission reduction of an SOFC-based energy system served public buildings with large interior zones

Tan, Luzhi; Dong, Xiaoming; Gong, Zhiqiang; Wang, Mingtao

doi:10.1016/j.energy.2018.10.054

Cited by 20 publications

(6 citation statements)

References 48 publications

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“…Especially, the optimal operation points (OOPs) and optimize power switching strategies have been discussed to improve the system efficiency. [17][18][19][20] The inuence of fuel utilization on the net efficiency of the SOFC system has been studied. 17 A novel combined cooling, heating, and power (CCHP) system with a high electrical efficiency of 52% and overall efficiency of 75% has been proposed, 18 and then the parametric analysis and multi-objective optimization are conducted to obtain the high efficiency.…”

Section: Fuel Starvationmentioning

confidence: 99%

“…19 The integrated energy efficiency ratio and CO 2 emission trend have been assessed to obtain a much higher primary energy efficiency. 20 The model predictive control (MPC)-based energy management combining the self-trending prediction and subset-searching algorithm has been proposed, 21 which can improve the efficiency of the fuel cells and reduce the operating cost in the application of the fuel cell hybrid system. However, maximum efficiency is obtained in the SOFC system at the intersection of the safety constraints.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of energy management in hybrid SOFC-based DC microgrid considering high efficiency and operating safety when external load power goes up

Zhang¹,

Xie

Niu³

et al. 2023

Sustainable Energy Fuels

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Section: Fuel Starvationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of energy management in hybrid SOFC-based DC microgrid considering high efficiency and operating safety when external load power goes up

Zhang¹,

Xie

Niu³

et al. 2023

Sustainable Energy Fuels

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“…Solid oxide fuel cells (SOFCs) are an electrochemical device that have been consistently developed due to their high efficiency, minimum impact on the environment, and ability to employ a range of fuels to produce power [1]. The device is widely used for future commercial implementation, making it simple to implement in a wide range of applications.…”

Section: Introductionmentioning

confidence: 99%

Study on the composite structure of cobalt-free oxides as cathodes for intermediate temperature solid oxide fuel cells (IT-SOFCs)

Susanto,

Jamhary,

Permana

2023

TT: PhE

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Summary: Solid Oxide Fuel Cells (SOFCs) represent a promising technology for efficient and clean energy conversion. This study focuses on the design and development of a novel cathode material for SOFCs, specifically exploring the use of a free-cobalt cathode within a composite structure. Investigating the structure of cobalt-free composites of Ba0.5Sr0.5FeO3-δ (BSF) and Ba0.5Sr0.5Fe0.8B0.2O3-δ (B=Cu, Zn) (BSFB) have been prepared and evaluated as cathodes for IT-SOFCs. The solid-state reaction was employed for generating and modifying the composite structure of the model system. The decomposition reaction and the formation of perovskite structure have been observed using thermal gravimetric analysis and X-ray diffraction. The study encompasses experimental procedures, data processing using GSAS software, and the application of the Rietveld method to achieve precise analysis results. Rietveld analysis outcomes offer intricate details about the crystal structure, encompassing crystal unit parameters, and scale factors. The solid-state reaction led to the reduction in the weight of the composite during the heating process. The decomposition reaction of oxides was generated between 650 to 950 oC. The average of total weight loss during the period treatment was achieved up to 18 % and the perovskite phase formed in the composite structure. A single-phase perovskite from a cubic structure with space group Pm-3m was demonstrated by all composite’s models. The lattice parameter and a unit cell volume were obtained from the model system of BSF, BSFC and BSFZ, respectively. This study explores the potential development of SOFCs technology with the hope of making a positive contribution to advancing clean and sustainable energy solutions in the future

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“…Solid oxide fuel cells (SOFCs) have its own charm because it has high efficiency in energy conversion, renewable fuel and produces low emissions so it is environmentally friendly. Due to their high performance, SOFCs are the electrochemical device that has been continuously developed [1]. The device is being used extensively for commercial implementation, making it simple to use in a wide range of applications.…”

Section: Introductionmentioning

confidence: 99%

Development of oxide composite materials for cathode element of IT-SOFCs

Susanto

Kamal

Rahmiati

et al. 2022

EEJET

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Investigating the properties of composite oxide for intermediate temperature solid oxide fuel cells (IT-SOFCs) has been done as a new cathode material. Using a solid-state reaction method, the metallic oxide material has been employed to create the composite model system. During the sintering process, a model system of Sm0.5Sr0.35Ba0.15FeO3-δ (SSBF15) was constructed. Thermal gravimetric analysis (TG) was played to utilize the oxygen content and weight loss of the model. In the meantime, the structure of the composite was characterized using X-ray diffraction (XRD), and the conductivity properties were tested by thermal conductivity. The structural design was made possible by the findings, which revealed that the composite model structure exhibited the crystalline structure with perovskite phase. Weight losses during the construction of the structure were reflected in the decomposition and evaporation of the composite's constituent parts. After the calcination process up to 950 °C, the model system's formation oxygen content was obtained of 2.94 in 800 °C. The electrical conductivity maximum obtained in 12.2 S·cm-1 at 430 °C. At low temperatures, the conductive behavior was affected by the metallic element, while at higher temperatures, it was influenced by the ionic structure. As a result, mixed ionic and electric conductors (MIEC) were extensively utilized in the process of generating the conductive properties. The SSBF15 composite has a good chance of being used as an alternative cathode material with a perovskite single phase for future IT-SOFCs applications based on the structure and conductivity results. Additional testing and observation are required to determine the resistance's value when incorporated into the electrolyte and its heat expansion properties

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Analysis on energy efficiency and CO2 emission reduction of an SOFC-based energy system served public buildings with large interior zones

Cited by 20 publications

References 48 publications

Optimization of energy management in hybrid SOFC-based DC microgrid considering high efficiency and operating safety when external load power goes up

Optimization of energy management in hybrid SOFC-based DC microgrid considering high efficiency and operating safety when external load power goes up

Study on the composite structure of cobalt-free oxides as cathodes for intermediate temperature solid oxide fuel cells (IT-SOFCs)

Development of oxide composite materials for cathode element of IT-SOFCs

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