Imperial College London

Professor Nigel Brandon OBE FREng

Faculty of Engineering

Dean of the Faculty of Engineering
 
 
 
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Contact

 

+44 (0)20 7594 8600n.brandon Website

 
 
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Location

 

2.06Faculty BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

402 results found

Wang Y, Banerjee A, Wehrle L, Shi Y, Brandon N, Deutschmann Oet al., 2019, Performance analysis of a reversible solid oxide cell system based on multi-scale hierarchical solid oxide cell modelling, Energy Conversion and Management, Vol: 196, Pages: 484-496, ISSN: 0196-8904

© 2019 Elsevier Ltd The increasing penetration of intermittent renewable energy into power grids calls for energy storage means to balance the electricity production and consumption. The reversible solid oxide cell is a promising technology for distributed renewable energy storage. A system-level model is a useful tool for system design and efficiency optimization. In this study, a reversible solid oxide cell system model was developed in gPROMS ModelBuilder for distributed energy storage applications by integrating a multi-scale hierarchical three-dimensional solid oxide cell stack model with zero-dimensional balance of plant components models. The hierarchical rSOC stack model considers the electrochemical reactions at the electrodes, the one-dimensional + one-dimensional thermo-fluidic transport along the thickness and the flow direction at repeating unit level, and the three-dimensional heat transfer at stack level. The proposed system model enables the simultaneous investigations on both the total system performance and detailed stack temperature distributions. The roundtrip stack efficiency and roundtrip system efficiency reached 72.3% and 58.3% respectively at base case operation conditions. The effects of excess air ratio and fuel utilization on the system efficiency as well as the temperature uniformity of the reversible solid oxide cell stack were investigated. While increasing the excess air ratio decreases stack temperature gradients, it also decreases both the stack and system roundtrip efficiency. However, improved fuel utilization decreases stack temperature gradients without affecting the stack and system roundtrip efficiency.

JOURNAL ARTICLE

Gayon Lombardo A, Simon BA, Taiwo O, Neethling SJ, Brandon NPet al., 2019, A pore network model of porous electrodes in electrochemical devices, Journal of Energy Storage, Vol: 24

© 2019 Elsevier Ltd A computationally efficient pore network model (PNM) has been developed to incorporate the transport and electrochemical phenomena occurring within porous electrodes. This PNM is validated on a synthetic cubic structure and subsequently run on a network obtained from X-ray computed tomography (X-CT) images of a sample of commercial porous carbon paper commonly used in electrochemical devices. The carbon paper's physical characteristics (pore-size distribution, permeability, porosity and electroactive surface area) are discussed. The concentration distribution of active species is examined considering solely the transient convective and diffusive transport processes initially, and subsequently is compared to the concentration of active species when migration and reactive transport factors are included. The results show non-uniformity in the concentration and pressure distributions in the electrode when considering the pure convective/diffusive transport processes. The migration and reactive processes are subsequently considered and are shown to be influenced by the rate in which the convective/diffusive flow permeates the electrode. A uniform steady decline in volume-averaged state of charge is shown, followed by a pore-scale non-uniform current density and state of charge distribution upon discharge. These results were obtained on a standard single core workstation highlighting the benefits of using a computationally inexpensive model.

JOURNAL ARTICLE

Ouyang M, Boldrin P, Maher RC, Chen X, Liu X, Cohen LF, Brandon NPet al., 2019, A mechanistic study of the interactions between methane and nickel supported on doped ceria, APPLIED CATALYSIS B-ENVIRONMENTAL, Vol: 248, Pages: 332-340, ISSN: 0926-3373

JOURNAL ARTICLE

Crow DJG, Balcombe P, Brandon N, Hawkes ADet al., 2019, Assessing the impact of future greenhouse gas emissions from natural gas production, SCIENCE OF THE TOTAL ENVIRONMENT, Vol: 668, Pages: 1242-1258, ISSN: 0048-9697

JOURNAL ARTICLE

Wehrle L, Wang Y, Banerjee A, Brandon N, Deutschmann Oet al., 2019, Dynamic Modeling of Reversible Solid Oxide Cells, CHEMIE INGENIEUR TECHNIK, Vol: 91, Pages: 833-842, ISSN: 0009-286X

JOURNAL ARTICLE

Song B, Bertei A, Wang X, Cooper SJ, Ruiz-Trejo E, Chowdhury R, Podor R, Brandon NPet al., 2019, Unveiling the mechanisms of solid-state dewetting in Solid Oxide Cells with novel 2D electrodes, JOURNAL OF POWER SOURCES, Vol: 420, Pages: 124-133, ISSN: 0378-7753

JOURNAL ARTICLE

Chen X, Liu X, Ouyang M, Chen J, Taiwo O, Xia Y, Childs PRN, Brandon NP, Wu Bet al., 2019, Multi-metal 4D printing with a desktop electrochemical 3D printer, SCIENTIFIC REPORTS, Vol: 9, ISSN: 2045-2322

JOURNAL ARTICLE

Liu X, Taiwo OO, Yin C, Ouyang M, Chowdhury R, Wang B, Wang H, Wu B, Brandon NP, Wang Q, Cooper SJet al., 2019, Aligned lonogel Electrolytes for High-Temperature Supercapacitors, ADVANCED SCIENCE, Vol: 6, ISSN: 2198-3844

JOURNAL ARTICLE

Song W, Liu X, Wu B, Brandon N, Shearing PR, Brett DJL, Xie F, Riley DJet al., 2019, Sn@C evolution from yolk-shell to core-shell in carbon nanofibers with suppressed degradation of lithium storage, ENERGY STORAGE MATERIALS, Vol: 18, Pages: 229-237, ISSN: 2405-8297

JOURNAL ARTICLE

Yufit V, Tariq F, Eastwood DS, Biton M, Wu B, Lee PD, Brandon NPet al., 2019, Operando Visualization and Multi-scale Tomography Studies of Dendrite Formation and Dissolution in Zinc Batteries, JOULE, Vol: 3, Pages: 485-502, ISSN: 2542-4351

JOURNAL ARTICLE

Trudgeon DP, Qiu K, Li X, Mallick T, Taiwo OO, Chakrabarti B, Yufit V, Brandon NP, Crevillen-Garcia D, Shah Aet al., 2019, Screening of effective electrolyte additives for zinc-based redox flow battery systems, JOURNAL OF POWER SOURCES, Vol: 412, Pages: 44-54, ISSN: 0378-7753

JOURNAL ARTICLE

Speirs J, Balcombe P, Blomerus P, Stettler M, Brandon N, Hawkes Aet al., 2019, Can natural gas reduce emissions from transport?: Heavy goods vehicles and shipping

REPORT

Rubio-Garcia J, Kucernak A, Zhao D, Li D, Fahy K, Yufit V, Brandon N, Gomez-Gonzalez Met al., 2019, Hydrogen/manganese hybrid redox flow battery, Journal of Physics: Energy, Vol: 1, Pages: 015006-015006

JOURNAL ARTICLE

Budinis S, Krevor S, Mac Dowell N, Brandon N, Hawkes Aet al., 2018, An assessment of CCS costs, barriers and potential, ENERGY STRATEGY REVIEWS, Vol: 22, Pages: 61-81, ISSN: 2211-467X

JOURNAL ARTICLE

Balcombe P, Speirs JF, Brandon NP, Hawkes ADet al., 2018, Methane emissions: choosing the right climate metric and time horizon, ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS, Vol: 20, Pages: 1323-1339, ISSN: 2050-7887

JOURNAL ARTICLE

Crow DJG, Anderson K, Hawkes AD, Brandon Net al., 2018, Impact of Drilling Costs on the US Gas Industry: Prospects for Automation, ENERGIES, Vol: 11, ISSN: 1996-1073

JOURNAL ARTICLE

Zhang D, Cai Q, Taiwo OO, Yufit V, Brandon NP, Gu Set al., 2018, The effect of wetting area in carbon paper electrode on the performance of vanadium redox flow batteries: A three-dimensional lattice Boltzmann study, ELECTROCHIMICA ACTA, Vol: 283, Pages: 1806-1819, ISSN: 0013-4686

JOURNAL ARTICLE

Tariq F, Rubio-Garcia J, Yufit V, Bertei A, Chakrabarti BK, Kucernak A, Brandon Net al., 2018, Uncovering the mechanisms of electrolyte permeation in porous electrodes for redox flow batteries through real time in situ 3D imaging, SUSTAINABLE ENERGY & FUELS, Vol: 2, Pages: 2068-2080, ISSN: 2398-4902

JOURNAL ARTICLE

Bertei A, Yufit V, Tariq F, Brandon NPet al., 2018, A novel approach for the quantification of inhomogeneous 3D current distribution in fuel cell electrodes, JOURNAL OF POWER SOURCES, Vol: 396, Pages: 246-256, ISSN: 0378-7753

JOURNAL ARTICLE

Song B, Ruiz-Trejo E, Brandon NP, 2018, Enhanced mechanical stability of Ni-YSZ scaffold demonstrated by nanoindentation and Electrochemical Impedance Spectroscopy, JOURNAL OF POWER SOURCES, Vol: 395, Pages: 205-211, ISSN: 0378-7753

JOURNAL ARTICLE

Balcombe P, Speirs J, Johnson E, Martin J, Brandon N, Hawkes Aet al., 2018, The carbon credentials of hydrogen gas networks and supply chains, RENEWABLE & SUSTAINABLE ENERGY REVIEWS, Vol: 91, Pages: 1077-1088, ISSN: 1364-0321

JOURNAL ARTICLE

Speirs J, Balcombe P, Johnson E, Martin J, Brandon N, Hawkes Aet al., 2018, A greener gas grid: What are the options, ENERGY POLICY, Vol: 118, Pages: 291-297, ISSN: 0301-4215

JOURNAL ARTICLE

Liu X, Marlow MN, Cooper SJ, Song B, Chen X, Brandon NP, Wu Bet al., 2018, Flexible all-fiber electrospun supercapacitor, JOURNAL OF POWER SOURCES, Vol: 384, Pages: 264-269, ISSN: 0378-7753

JOURNAL ARTICLE

Few S, Schmidt O, Offer GJ, Brandon N, Nelson J, Gambhir Aet al., 2018, Prospective improvements in cost and cycle life of off-grid lithium-ion battery packs: An analysis informed by expert elicitations, ENERGY POLICY, Vol: 114, Pages: 578-590, ISSN: 0301-4215

JOURNAL ARTICLE

Mazur C, Offer GJ, Contestabile M, Brandon NBet al., 2018, Comparing the Effects of Vehicle Automation, Policy-Making and Changed User Preferences on the Uptake of Electric Cars and Emissions from Transport, SUSTAINABILITY, Vol: 10, ISSN: 2071-1050

JOURNAL ARTICLE

Chen Z, Wang X, Brandon N, Atkinson Aet al., 2018, Numerical Study of Solid Oxide Fuel Cell Contacting Mechanics, FUEL CELLS, Vol: 18, Pages: 42-50, ISSN: 1615-6846

JOURNAL ARTICLE

Balcombe P, Brandon NP, Hawkes AD, 2018, Characterising the distribution of methane and carbon dioxide emissions from the natural gas supply chain, JOURNAL OF CLEANER PRODUCTION, Vol: 172, Pages: 2019-2032, ISSN: 0959-6526

JOURNAL ARTICLE

Song B, Ruiz-Trejo E, Bertei A, Brandon NPet al., 2018, Quantification of the degradation of Ni-YSZ anodes upon redox cycling, JOURNAL OF POWER SOURCES, Vol: 374, Pages: 61-68, ISSN: 0378-7753

JOURNAL ARTICLE

Hack J, Heenan TMM, Iacoviello F, Mansor N, Meyer Q, Shearing P, Brandon N, Brett DJLet al., 2018, A Structure and Durability Comparison of Membrane Electrode Assembly Fabrication Methods: Self-Assembled Versus Hot-Pressed, JOURNAL OF THE ELECTROCHEMICAL SOCIETY, Vol: 165, Pages: F3045-F3052, ISSN: 0013-4651

JOURNAL ARTICLE

Chen X, Liu X, Childs P, Brandon N, Wu Bet al., 2018, Design and fabrication of a low cost desktop electrochemical 3D printer, Pages: 395-400, ISSN: 2424-8967

Copyright © 2018 by Nanyang Technological University. Additive manufacturing (AM) (3D printing) is the process of creating 3D objects from digital models through the layer by layer deposition of materials. Electrochemical additive manufacturing (ECAM) is a relatively new technique which can create metallic components based depositing adherent layers of metal ions onto the surface of conductive substrate. In this paper, the design considerations for a meniscus confined ECAM approach is presented which demonstrates superior print speeds to equivalent works. This is achieved through the increase of the meniscus diameter to 400 \im which was achieved through the integration of a porous sponge into the print head to balance the hydraulic head of the electrolyte. Other piston based methods of controlling the electrolyte meniscus are discussed.

CONFERENCE PAPER

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