On the technical challenges affecting the performance of direct internal reforming biogas solid oxide fuel cells

Abdelkareem, Mohammad Ali; Tanveer, Waqas Hassan; Sayed, Enas Taha; Assad, Mamdouh El Haj; Allagui, Anis; Cha, Sungdeok

doi:10.1016/j.rser.2018.10.025

Cited by 136 publications

(54 citation statements)

References 179 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also discussed the exergy analysis and future research on direct internal reforming to enhance the SOFCs performance. 35 Review on zirconate-cerate-based electrolytes for protonconducting solid oxide fuel cell This review introduced the four types of cerate and/or zirconate electrolytes for proton-conducting SOFCs system. The system of conductivity, the stability of chemical and sinterability of cerate and/or zirconate electrolytes are discussed and proved this alternative electrolyte has a high potential for SOFCs application.…”

Section: Titlementioning

confidence: 99%

“…40,41 Unfortunately, the real application of SOFCs has not been realized because of high material cost production of the main components such as electrolyte, electrode, and catalyst. 35 Review on zirconate-cerate-based electrolytes for protonconducting solid oxide fuel cell This review introduced the four types of cerate and/or zirconate electrolytes for proton-conducting SOFCs system. 42,43 In the high temperature SOFCs (~800-1000°C) application, the various materials faced problematic issues such as interfacial diffusion issues between solid electrolyte and electrodes, the process of electrode sintering, catalyst poisoning, thermal heat sock and mechanical instability, and equilibrium cell component of thermal expansion coefficients.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A review on recent status and challenges of yttria stabilized zirconia modification to lowering the temperature of solid oxide fuel cells operation

et al. 2019

View full text Add to dashboard Cite

Solid Oxide Fuel Cells (SOFCs) are an electrochemical energy converter that receives the world's attention as a power generation system of the future owing to its flexibility to consume various types of fuels, low emission of greenhouses gases, and having high efficiency reaching over 70%. A conventional SOFCs operates at high temperature, typically ranges between 800 to 1000°C. SOFCs use yttria-stabilized zirconia (YSZ) as the electrolyte, which exhibits excellent oxide ion conductivity in this temperature range. However, this temperature range poses an issue to SOFCs durability, as it leads to the degradation of the cell components. In addition, SOFCs application is limited and difficult to implement for the transportation sector and portable appliance. A viable solution is to lower the SOFCs operating temperature to intermediate (600 to 800°C ) or low (<600°C) operating temperature. The benefit of this way, cell durability will improve, as well as other advantages such as facilitates handling, assembling, dismantling, cost reduction, and expanded the SOFCs application. Nonetheless, the key challenge for the issue is finding suitable electrolyte, as YSZ have lower ionic conductivity at low and intermediate temperature range. The aim of this paper is to review the status and challenges in the attempts made to modify YSZ electrolyte within the past decade. The resulting ionic conductivity, microstructure, and densification, mechanical and thermal properties of these 'new' electrolytes critically reviewed. The targeted conductivity of modification of YSZ electrolyte must be exceeded >0.1 S cm -1 to enable high performance of SOFCs power generation systems to be realized for transportation and portable applications. Based on our knowledge, this paper is the first review which focused on the recent status and challenges of YSZ electrolyte towards lowering the operating temperature.

show abstract

Section: Titlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A review on recent status and challenges of yttria stabilized zirconia modification to lowering the temperature of solid oxide fuel cells operation

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Fuel cells (FCs) are electrochemical devices that are used for direct conversion of chemical energy of fuels into electricity with high efficiency. Besides high efficiency, fuel cells have several advantages such as silent, smaller in size compared to other energy conversion devices, low or no environmental impact [6], moreover, it can work on different fuels that can be obtained from renewable resources such as methanol [7], ethanol [8], formic acid [9], biogas [10,11], syngas [12], and biochar [13]. Moreover, FCs are also used for simultaneous wastewater treatment and electricity generation, such as in urea fuel cells [14] and microbial fuel cells [15,16].…”

Section: Introductionmentioning

confidence: 99%

Fuel cell as an effective energy storage in reverse osmosis desalination plant powered by photovoltaic system

Rezk

Sayed

Al‐Dhaifallah³

et al. 2019

Energy

Self Cite

191

View full text Add to dashboard Cite

A hybrid renewable energy systems (HRESs) comprises of photovoltaic (PV), and self-charging fuel cells (SCFC) is designed for securing electrical energy required to operate brackish water pumping (BWP) and reverse osmosis desalination (RO) plant of 150 m 3 d-1 for irrigation purposes in remote areas. An optimal configuration of the proposed design is determined based on minimum cost of energy (COE) and the minimum total net present cost (NPC). Moreover, a comparison with a stand-alone diesel generation (DG) or grid extension is carried out against the optimal configuration of PV/SCFC HRES. The modeling, simulation, and techno-economic evaluation of the different proposed systems, including the PV/SCFC system are done using HOMER software. Results show that PV array (66 kW), FC (9 kW), converter (25 KW)-Electrolyzer (15 kW), Hydrogen cylinder (70 kg) are the viable economic option with a total NPC of $115,649 and $0.062 unit cost of electricity. The COE for the standalone DG system is 0.206 $/kWh, which is 69.90 % higher than that of the PV/SCFC system. The PV/SCFC system is cheaper than grid extension. This study opens the way for using a fuel cell as an effective method for solving the energy intermittence/storage problems of renewable energy sources.

show abstract

“…But unfortunately, it is limited, depleting and has many negative environmental impacts (Brevik et al, 2019). Renewable and alternative energy sources are environment friendly compared to the traditional fossil fuel (Aransiola et al, 2014;Sayed et al, 2019). Biomass is a promising energy resource because it is renewable as well as abundant.…”

Section: Introductionmentioning

confidence: 99%

“…Biomass is a promising energy resource because it is renewable as well as abundant. (Hwangbo et al, 2019;Rafael et al, 2015;Abdelkareem et al, 2019). Biodiesel obtained from biomass can be an alternative to the conventional diesel and carbon neutral fuels (Fawaz andSalam, 2018, Wang et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Fuzzy modeling and parameters optimization for the enhancement of biodiesel production from waste frying oil over montmorillonite clay K-30

Inayat

Nassef

Rezk

et al. 2019

Science of The Total Environment

103

View full text Add to dashboard Cite

Please cite this article as: A. Inayat, A.M. Nassef, H. Rezk, et al., Fuzzy modeling and parameters optimization for the enhancement of biodiesel production from waste frying oil over montmorillonite clay K-30, Science of the Total Environment, https://doi. AbstractTransesterification is a promising technology for the biodiesel production to provide an alternative fuel that considers the environmental concerns. From the economic and environmental protection points of view, utilization of waste frying oil for the production of biodiesel addresses very beneficial impacts. Production of higher yield of biodiesel is a challenging process in order to commercialize it with a lower cost. The current study focuses on the influence of different parameters such as reaction temperature (ºC), reaction period (min), oil to methanol ratio and amount of catalyst (wt%) on the production of biodiesel. The main objective of this work is to develop a model via fuzzy logic approach in order to maximize the biodiesel produced from waste frying oil using montmorillonite Clay K-30 as a catalyst. The optimization for the operating parameters has been performed via particle swarm optimization (PSO) approach. During the optimization process, the decision variables were represented by four different operating parameters: temperature (40-140ºC), reaction period (60-300 min), oil/methanol ratio (1:6-1:18) and amount of catalyst (1-5 wt%). The model has been validated with the experimental data and compared with the optimal results reported based on other optimization techniques. Results showed the increment of biodiesel production by 15% using the proposed strategy compared to the earlier study. The obtained biodiesel production yield reached 93.70% with the optimal parameters for a temperature at 69.66ºC, a reaction period of 300 min, oil/methanol ratio of 1:9 and an amount of catalyst of 5 wt%.

show abstract

On the technical challenges affecting the performance of direct internal reforming biogas solid oxide fuel cells

Cited by 136 publications

References 179 publications

A review on recent status and challenges of yttria stabilized zirconia modification to lowering the temperature of solid oxide fuel cells operation

A review on recent status and challenges of yttria stabilized zirconia modification to lowering the temperature of solid oxide fuel cells operation

Fuel cell as an effective energy storage in reverse osmosis desalination plant powered by photovoltaic system

Fuzzy modeling and parameters optimization for the enhancement of biodiesel production from waste frying oil over montmorillonite clay K-30

Contact Info

Product

Resources

About