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A machine learning-driven approach to predicting thermo-elasto-hydrodynamic lubrication in journal bearings (2024)
Journal Article
Cartwright, S., Rothwell, B. C., Figueredo, G., Medina, H., Eastwick, C., Layton, J., & Ambrose, S. (2024). A machine learning-driven approach to predicting thermo-elasto-hydrodynamic lubrication in journal bearings. Tribology International, 196, Article 109670. https://doi.org/10.1016/j.triboint.2024.109670

Traditional methods of evaluating the performance of journal bearings, for example thermal-elastic-hydrodynamic- lubrication theory, are limited to simplified conditions that often fail to accurately model real-world components. Numerical models that... Read More about A machine learning-driven approach to predicting thermo-elasto-hydrodynamic lubrication in journal bearings.

A New Thermal Elasto-Hydrodynamic Lubrication Solver Implementation in OpenFOAM (2023)
Journal Article
Layton, J., Rothwell, B. C., Ambrose, S., Eastwick, C., Medina, H., & Rebelo, N. (2023). A New Thermal Elasto-Hydrodynamic Lubrication Solver Implementation in OpenFOAM. Lubricants, 11(7), Article 308. https://doi.org/10.3390/lubricants11070308

Designing effective thermal management systems within transmission systems requires simulations to consider the contributions from phenomena such as hydrodynamic lubrication regions. Computational fluid dynamics (CFD) remains computationally expensiv... Read More about A New Thermal Elasto-Hydrodynamic Lubrication Solver Implementation in OpenFOAM.

Can simultaneous PIV in the gas and liquid phases provide insight into the transfer of momentum between the two phases? (2022)
Presentation / Conference Contribution
Kim, J. H., Hann, D. B., Eastwick, C. M., & Cherdantsev, A. V. (2022, July). Can simultaneous PIV in the gas and liquid phases provide insight into the transfer of momentum between the two phases?. Paper presented at 20th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics, Lisbon, Portugal

Understanding the interaction between a gas shearing over a liquid film and the liquid film is essential if we wish to use modeling to optimize systems to decrease environmental impact, increase efficiency and hence productivity. To this end, PIV is... Read More about Can simultaneous PIV in the gas and liquid phases provide insight into the transfer of momentum between the two phases?.

Fluid flow and heat transfer analysis of TEFC machine end regions using more realistic end-winding geometry (2019)
Journal Article
La Rocca, S., Pickering, S. J., Eastwick, C. N., Gerada, C., & Rönnberg, K. (2019). Fluid flow and heat transfer analysis of TEFC machine end regions using more realistic end-winding geometry. Journal of Engineering, 2019(17), 3831-3835. https://doi.org/10.1049/joe.2018.8026

Here, a typical small low-voltage totally enclosed fan-cooled (TEFC) motor (output power ∼10 kW) has been studied using computational fluid dynamics. The complexity of the end-winding geometries, often consisting of several insulated copper strands b... Read More about Fluid flow and heat transfer analysis of TEFC machine end regions using more realistic end-winding geometry.

An investigation into the use of CFD to model the co-firing of Jatropha curcas seed cake with coal (2018)
Journal Article
Madanayake, B. N., Gan, S., Eastwick, C., & Ng, H. K. (2018). An investigation into the use of CFD to model the co-firing of Jatropha curcas seed cake with coal. International Journal of Green Energy, 15(11), 1-17. https://doi.org/10.1080/15435075.2018.1525559

Jatropha curcas seed cake is a potential candidate for co-firing with coal. Combustion modelling using Ansys Fluent 14.0 was carried out to assess the combustion and co-firing characteristics of untorrefied and torrefied Jatropha curcas seed cake. Th... Read More about An investigation into the use of CFD to model the co-firing of Jatropha curcas seed cake with coal.

Applicability of mechanical tests for biomass pellet characterisation for bioenergy applications (2018)
Journal Article
Williams, O., Taylor, S., Lester, E., Kingman, S., Giddings, D., & Eastwick, C. (2018). Applicability of mechanical tests for biomass pellet characterisation for bioenergy applications. Materials, 11(8), Article 1329. https://doi.org/10.3390/ma11081329

In this paper, the applicability of mechanical tests for biomass pellet characterisation was investigated. Pellet durability, quasi-static (low strain rate), and dynamic (high strain rate) mechanical tests were applied to mixed wood, eucalyptus, sunf... Read More about Applicability of mechanical tests for biomass pellet characterisation for bioenergy applications.

A CFD and experimental investigation into a non-intrusive method for measuring cooling air mass flow rate through a synchronous generator (2018)
Presentation / Conference Contribution
Bersch, K., Connor, P. H., Eastwick, C. N., & Galea, M. (2018). A CFD and experimental investigation into a non-intrusive method for measuring cooling air mass flow rate through a synchronous generator.

This paper presents a detailed methodology for a non-intrusive measurement of cooling air mass flow rate that enables an overall machine evaluation. This approach enables the simultaneous measurement of air mass flow with shaft torque at differing op... Read More about A CFD and experimental investigation into a non-intrusive method for measuring cooling air mass flow rate through a synchronous generator.

Studies on combustion behaviours of single biomass particles using a visualization method (2017)
Journal Article
Shan, L., Kong, M., Bennet, T. D., Sarroza, A. C., Eastwick, C., Sun, D., …Liu, H. (2018). Studies on combustion behaviours of single biomass particles using a visualization method. Biomass and Bioenergy, 109, https://doi.org/10.1016/j.biombioe.2017.12.008

Combustion behaviours of single particles (125–150 μm) of eucalyptus, pine and olive residue were investigated by means of a transparent visual drop-tube furnace, electrically heated to 1073 K, and a high-speed camera coupling with a long distance mi... Read More about Studies on combustion behaviours of single biomass particles using a visualization method.

Benefits of dry comminution of biomass pellets in a knife mill (2017)
Journal Article
Williams, O., Lester, E., Kingman, S., Giddings, D., Lormor, S., & Eastwick, C. (in press). Benefits of dry comminution of biomass pellets in a knife mill. Biosystems Engineering, 160, https://doi.org/10.1016/j.biosystemseng.2017.05.011

The potential benefits of dry comminution in a knife mill for a diverse range of biomass 6 pellets are explored. The impact of dry comminution on energy consumption, particle size and shape, 7 is examined as well as the link between milling and mecha... Read More about Benefits of dry comminution of biomass pellets in a knife mill.

Overcoming the caking phenomenon in olive mill wastes (2017)
Journal Article
Williams, O., Eastwick, C., Kingman, S., Giddings, D., Lormor, S., & Lester, E. (2017). Overcoming the caking phenomenon in olive mill wastes. Industrial Crops and Products, 101, https://doi.org/10.1016/j.indcrop.2017.02.036

The use of olive mill wastes (orujillo) within coal fired power stations in the UK has led to unexpected difficulties with material caking within the fuel handling plant. This study replicated orujillo caking on a laboratory scale using a planetary b... Read More about Overcoming the caking phenomenon in olive mill wastes.

Combustion behavior profiling of single pulverized coal particles in a drop tube furnace through high-speed imaging and image analysis (2017)
Journal Article
Bai, X., Lu, G., Bennet, T. D., Sarroza, A. C., Eastwick, C., Liu, H., & Yan, Y. (in press). Combustion behavior profiling of single pulverized coal particles in a drop tube furnace through high-speed imaging and image analysis. Experimental Thermal and Fluid Science, 85, https://doi.org/10.1016/j.expthermflusci.2017.03.018

Experimental investigations into the combustion behaviors of single pulverized coal particles are carried out based on high-speed imaging and image processing techniques. A high-speed video camera is employed to acquire the images of coal particles d... Read More about Combustion behavior profiling of single pulverized coal particles in a drop tube furnace through high-speed imaging and image analysis.

Characterising pulverised fuel ignition in a visual drop tube furnace by use of a high-speed imaging technique (2016)
Journal Article
Sarroza, A. C., Bennet, T. D., Eastwick, C., & Liu, H. (in press). Characterising pulverised fuel ignition in a visual drop tube furnace by use of a high-speed imaging technique. Fuel Processing Technology, 157, https://doi.org/10.1016/j.fuproc.2016.11.002

This study investigates the ignition characteristics of pulverised coal, biomass and co-firing by use of a visual drop tube furnace (VDTF) and a high speed imaging technique. Three coals (anthracite, a bituminous coal and a lignite), four biomasses (... Read More about Characterising pulverised fuel ignition in a visual drop tube furnace by use of a high-speed imaging technique.

Stator and rotor vent modelling in a MVA rated synchronous machine (2016)
Presentation / Conference Contribution
Connor, P. H., Eastwick, C., Pickering, S. J., Gerada, C., & Rolston, R. (2016). Stator and rotor vent modelling in a MVA rated synchronous machine. In 2016 XXII International Conference on Electrical Machines (ICEM) (571-577). https://doi.org/10.1109/ICELMACH.2016.7732583

An investigation into the solution dependence of a conjugate heat transfer computational fluid dynamics (CFD) model of a synchronous generator, with respect to meshing, has been carried out. Utilising CFD as a tool for investigating the airflow and t... Read More about Stator and rotor vent modelling in a MVA rated synchronous machine.

Influence of mill type on densified biomass comminution (2016)
Journal Article
Williams, O., Newbolt, G., Eastwick, C., Kingman, S. W., Giddings, D., Lormor, S., & Lester, E. (2016). Influence of mill type on densified biomass comminution. Applied Energy, 182, 219-231. https://doi.org/10.1016/j.apenergy.2016.08.111

The impact of different mill fracture mechanisms were examined for a wide range of densified biomass pellets to provide a comprehensive analysis of biomass milling behaviour for pulverised fuel combustion. The milling behaviour of 7 woody, herbaceous... Read More about Influence of mill type on densified biomass comminution.

Thermochemical and structural changes in Jatropha curcas seed cake during torrefaction for its use as coal co-firing feedstock (2016)
Journal Article
Madanayakea, B. N., Gan, S., Eastwick, C., & Ng, H. K. (2016). Thermochemical and structural changes in Jatropha curcas seed cake during torrefaction for its use as coal co-firing feedstock. Energy, 100, https://doi.org/10.1016/j.energy.2016.01.097

Jatropha curcas seed cake is a viable feedstock for co-firing with coal as it has the advantages of being renewable, carbon-neutral and sourced from a versatile plant. Torrefaction, a mild pyrolysis treatment by heating in a N2 atmosphere, was invest... Read More about Thermochemical and structural changes in Jatropha curcas seed cake during torrefaction for its use as coal co-firing feedstock.

Leaching as a pretreatment process to complement torrefaction in improving co-firing characteristics of Jatropha curcas seed cake (2015)
Journal Article
Madanayake, B. N., Gan, S., Eastwick, C., & Ng, H. K. (2016). Leaching as a pretreatment process to complement torrefaction in improving co-firing characteristics of Jatropha curcas seed cake. Waste and Biomass Valorization, 7(3), 559-569. https://doi.org/10.1007/s12649-015-9467-z

The presence of certain inorganic elements in biomass causes issues such as slagging, fouling and corrosion when co-firing with coal for power generation. In this work, the efficacy of leaching to remove these elements from Jatropha curcas seed cake... Read More about Leaching as a pretreatment process to complement torrefaction in improving co-firing characteristics of Jatropha curcas seed cake.

Impact of mill type on biomass mill behavior (2015)
Presentation / Conference Contribution
Williams, O., Eastwick, C., Lester, E., Giddings, D., & Lormor, S. (in press). Impact of mill type on biomass mill behavior.

With increasing use of biomass in pulverized fuel coal fired power stations, the impact of mill type on biomass size and shape is fundamental in optimizing mill and burner performance. The impact of mill type on the energy consumption, particle size... Read More about Impact of mill type on biomass mill behavior.

Investigation into the applicability of Bond Work Index (BWI) and Hardgrove Grindability Index (HGI) tests for several biomasses compared to Colombian La Loma coal (2015)
Journal Article
Williams, O., Eastwick, C., Kingman, S., Giddings, D., Lormor, S., & Lester, E. (2015). Investigation into the applicability of Bond Work Index (BWI) and Hardgrove Grindability Index (HGI) tests for several biomasses compared to Colombian La Loma coal. Fuel, 158, https://doi.org/10.1016/j.fuel.2015.05.027

With increasing quantities of biomass being combusted in coal fired power stations, there is an urgent need to be able to predict the grindability of biomass in existing coal mills, but currently no standard biomass grindability test exists. In this... Read More about Investigation into the applicability of Bond Work Index (BWI) and Hardgrove Grindability Index (HGI) tests for several biomasses compared to Colombian La Loma coal.

Numerical study on a two-stage metal hydride hydrogen compression system (2015)
Journal Article
Gkanas, E. I., Grant, D. M., Stuart, A. D., Eastwick, C., Book, D., Nayebossadri, S., …Walker, G. S. (in press). Numerical study on a two-stage metal hydride hydrogen compression system. Journal of Alloys and Compounds, 645(Supp1), Article S18-S22. https://doi.org/10.1016/j.jallcom.2015.03.123

A multistage Metal Hydride Hydrogen Compression (MHHC) system uses a combination of hydride materials in order to increase the total compression ratio, whilst maximizing the hydrogenation rate from the supply pressure at each stage. By solving the co... Read More about Numerical study on a two-stage metal hydride hydrogen compression system.