Study on the operating parameters of the 10 kW SOFC-CHP system with syngas

Li, Biao; Lyu, Zewei; Zhu, Jun; Han, Minfang; Sun, Zaihong

doi:10.1007/s40789-021-00451-3

Cited by 11 publications

(5 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The prevailing mechanism of the reduction of the NiO by the hydrogen is as follows (9)(10)(11)(12). ( 1) The H2 is adsorbed and dissociated by the NiO initially during the induction period and then by the previously formed Ni metal gradually at the growing interface; (2) The hydrogen molecules diffuse to the surface of the reactive center; (3) The Ni-O bonds rupture to produce Ni 0 atoms; (4) The Ni 0 atoms nucleate into the Ni metallic clusters; (5) The Ni metal clusters grow into crystallite. During the production of the Ni, the H2O is also produced.…”

Section: Analysis Of the Initial Performances Of The Button-sized Sofcsmentioning

confidence: 99%

“…The main function of the electrolyte is conducting the oxygen ion (4). The electrode of the SOFC is porous, which is supposed to satisfy the requirements of higher heat stability, structural stability, catalytic activity and electrical conductivity in the operating temperature of 600 -1000℃ (5,6). At present, the most widely used anode material is the Ni/YSZ.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Reduction Step and Mechanism Analysis of the NiO-8YSZ Anode Affected by the Hydrogen Concentration

Wang¹,

Zhang²,

Song³

et al. 2023

ECS Trans.

View full text Add to dashboard Cite

Hydrogen of different concentrations humidified by the water vapour were used to reduce the NiO-8YSZ anodes of the solid oxide fuel cells (SOFCs) at 700℃ and 720℃. The experimental results suggested that four periods of the open circuit voltage, namely rapid increase period, temporary stasis period, slow increase period and final stable period exist successively during the reduction, the characteristics of which were closely related to the hydrogen concentration of the reduction. After the reduction, the polarization resistance on open circuit and on load showed different correlation with the hydrogen concentration of the reduction. The variation trend of the initial performances of the SOFCs corresponded highly to the polarization resistance on load. The shrinking core model of the reduction of the NiO suggested that the further reduction of the unreacted NiO core would most likely cause the activation of the SOFC.

show abstract

Section: Analysis Of the Initial Performances Of The Button-sized Sofcsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Reduction Step and Mechanism Analysis of the NiO-8YSZ Anode Affected by the Hydrogen Concentration

Wang¹,

Zhang²,

Song³

et al. 2023

ECS Trans.

View full text Add to dashboard Cite

show abstract

“…What is more, the SOFC operates at high temperature (600℃-1000℃), and thus the thermal energy from exhaust gas of the SOFC can also be used in the ship, such as heating the domestic water, heavy fuel oil and lubricating oil. Therefore, the SOFC can provide both thermal energy and electrical energy for the ship, making the overall efficiency of the SOFC reach approaximately 90% [28][29][30] .…”

Section: Analysis Of the Significant Development Potential Of The Sol...mentioning

confidence: 99%

Significant Development Potential of the Solid Oxide Fuel Cell for the Technical Progress of the Marine Main Propulsion Plant in the Context of Energy Conservation and Emission Reduction

Wang,

Zhu,

Han

2023

New Energy Exploit. Appl.

View full text Add to dashboard Cite

The International Maritime Organization (IMO) has proposed a series of strict pollutant emission regulations and carbon emission reduction targets, and the shipping industry is seeking new types of the marine main propulsion plant with advantages of high-efficiency and low-emission. Among the possible alternatives, the marine electric propulsion technology whose electric power source is fuel cell has gained sufficient attentions. At present, the worldwide research of the marine applications for fuel cell supplying propulsion power focuses more on the proton exchange membrane fuel cell (PEMFC) with low power instead of other types of fuel cell, and a series of research projects have achieved concrete results such as the industrialized marine fuel cell system or practical demonstration application. But the development trends of the application of the marine fuel cell supplying propulsion power are from the small boat to the great ship, from the navigating zone with low environmental complexity such as coastal water, inland waters to the ocean with complex navigation conditions. Thus, the power demand of the marine fuel cell in the future will show steady growth, which will create more development opportunities for the solid oxide fuel cell (SOFC) with the advantages of higher power, greater efficiency, long life span and fuel diversity. Although some challenges exist, the solid oxide fuel cell with significant development potential can certainly lead the technical progress of the marine main propulsion plant in the context of energy conservation and emission reduction.

show abstract

“…One direction in the modern transition to alternative energy sources is the use of hydrogen, which can be obtained in its pure form from solid fuel syngas [5,9]. Syngas with a high hydrogen content is also used in power plants with solid oxide fuel cells [10].…”

Section: Introductionmentioning

confidence: 99%

Steam Gasification in a Fluidized Bed with Various Methods of In-Core Coal Treatment

Abaimov,

Ryzhkov,

Tuponogov

et al. 2023

Axioms

View full text Add to dashboard Cite

The aim of this work is to study coal steam gasification with various methods of coal in-core treatment in FB using a newly developed thermodynamic calculation method. A calculational study of subbituminous coal steam non-catalytic gasification was carried out using four different methods of coal in-core treatment in single-vessel multisectional fluidized-bed gasifiers. A semi-empirical model based on the entropy maximization thermodynamic method and “restricted equilibria” based on previously obtained experimental data has been developed. Based on thermodynamic calculations, the effect of the leading thermochemical processes and operating parameters of the fluidized bed (temperature, fluidization number, steam/coal ratio feed rate) was revealed. New information was obtained regarding the composition of char and syngas at the gasifier outlet, the syngas heating value, and the cold gas efficiency of the steam gasification of Borodinskiy subbituminous coal char. The results indicate the possibility of significantly accelerating and improving non-catalytic steam gasification in fluidized bed gasifiers through the appropriate organization of in-core coal treatment. Based on the results obtained, the following recommendation is made—when designing multi-section and multi-vessel steam-blown gasifiers, the ratio of residence times should be set in favor of increasing the coal residence time in the steam-blown carbonization zone. Structurally, this can be achieved by increasing the volume and/or area of the steam-blown carbonization section (vessel).

show abstract

Study on the operating parameters of the 10 kW SOFC-CHP system with syngas

Cited by 11 publications

References 21 publications

The Reduction Step and Mechanism Analysis of the NiO-8YSZ Anode Affected by the Hydrogen Concentration

The Reduction Step and Mechanism Analysis of the NiO-8YSZ Anode Affected by the Hydrogen Concentration

Significant Development Potential of the Solid Oxide Fuel Cell for the Technical Progress of the Marine Main Propulsion Plant in the Context of Energy Conservation and Emission Reduction

Steam Gasification in a Fluidized Bed with Various Methods of In-Core Coal Treatment

Contact Info

Product

Resources

About