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All Outputs (28)

Towards Pareto optimal high entropy hydrides via data-driven materials discovery (2023)
Journal Article
Witman, M. D., Ling, S., Wadge, M., Bouzidi, A., Pineda-Romero, N., Clulow, R., …Stavila, V. (2023). Towards Pareto optimal high entropy hydrides via data-driven materials discovery. Journal of Materials Chemistry A, 11(29), 15878-15888. https://doi.org/10.1039/d3ta02323k

The ability to rapidly screen material performance in the vast space of high entropy alloys is of critical importance to efficiently identify optimal hydride candidates for various use cases. Given the prohibitive complexity of first principles simul... Read More about Towards Pareto optimal high entropy hydrides via data-driven materials discovery.

Hydrogen-Induced Conversion of SnS2 into SnS or Sn: A Route to Create SnS2/SnS Heterostructures (2022)
Journal Article
Patanè, A., Felton, J., Blundo, E., Kudrynskyi, Z., Ling, S., Bradford, J., …Patane, A. (2022). Hydrogen-Induced Conversion of SnS2 into SnS or Sn: A Route to Create SnS2/SnS Heterostructures. Small, 18(33), Article 2202661. https://doi.org/10.1002/smll.202202661

The family of van der Waals (vdW) materials is large and diverse with applications ranging from electronics and optoelectronics to catalysis and chemical storage. However, despite intensive research, there remains significant knowledge-gaps pertainin... Read More about Hydrogen-Induced Conversion of SnS2 into SnS or Sn: A Route to Create SnS2/SnS Heterostructures.

Engineering the next generation of photorechargeable zinc-air batteries (2022)
Journal Article
Ola, O., Wang, N., Walker, G., Zhu, Y., & Grant, D. (2022). Engineering the next generation of photorechargeable zinc-air batteries. Current Opinion in Electrochemistry, 35, Article 101040. https://doi.org/10.1016/j.coelec.2022.101040

Solar energy has been identified as one of the key building blocks of the future energy generation mix required to meet greenhouse gas emissions targets while leading the way to a zero-carbon economy. In our opinion, photorechargeable zinc-air batter... Read More about Engineering the next generation of photorechargeable zinc-air batteries.

The Interaction of Hydrogen with the van der Waals Crystal ?-InSe (2020)
Journal Article
Felton, J., Blundo, E., Ling, S., Glover, J., Kudrynskyi, Z. R., Makarovsky, O., …Patané, A. (2020). The Interaction of Hydrogen with the van der Waals Crystal γ-InSe. Molecules, 25(11), Article 2526. https://doi.org/10.3390/molecules25112526

The emergence of the hydrogen economy requires development in the storage, generation and sensing of hydrogen. The indium selenide (?-InSe) van der Waals (vdW) crystal shows promise for technologies in all three of these areas. For these applications... Read More about The Interaction of Hydrogen with the van der Waals Crystal ?-InSe.

Production of High Silicon-Doped Hydroxyapatite Thin Film Coatings via Magnetron Sputtering: Deposition, Characterisation, and In Vitro Biocompatibility (2020)
Journal Article
Coe, S. C., Wadge, M. D., Felfel, R. M., Ahmed, I., Walker, G. S., Scotchford, C. A., & Grant, D. M. (2020). Production of High Silicon-Doped Hydroxyapatite Thin Film Coatings via Magnetron Sputtering: Deposition, Characterisation, and In Vitro Biocompatibility. Coatings, 10(2), Article 190. https://doi.org/10.3390/coatings10020190

In recent years, it has been found that small weight percent additions of silicon to HA can be used to enhance the initial response between bone tissue and HA. A large amount of research has been concerned with bulk materials, however, only recently... Read More about Production of High Silicon-Doped Hydroxyapatite Thin Film Coatings via Magnetron Sputtering: Deposition, Characterisation, and In Vitro Biocompatibility.

Extracting an Empirical Intermetallic Hydride Design Principle from Limited Data via Interpretable Machine Learning (2019)
Journal Article
Witman, M., Ling, S., Grant, D. M., Walker, G. S., Agarwal, S., Stavila, V., & Allendorf, M. D. (2020). Extracting an Empirical Intermetallic Hydride Design Principle from Limited Data via Interpretable Machine Learning. Journal of Physical Chemistry Letters, 11(1), 40-47. https://doi.org/10.1021/acs.jpclett.9b02971

An open question in the metal hydride community is whether there are simple, physics-based design rules that dictate the thermodynamic properties of these materials across the variety of structures and chemistry they can exhibit. While black box mach... Read More about Extracting an Empirical Intermetallic Hydride Design Principle from Limited Data via Interpretable Machine Learning.

Thermo-physical properties of the nano-binary fluid (acetone–zinc bromide-ZnO) as a low temperature operating fluid for use in an absorption refrigeration machine (2019)
Journal Article
Mohammed, H. I., Giddings, D., & Walker, G. S. (2020). Thermo-physical properties of the nano-binary fluid (acetone–zinc bromide-ZnO) as a low temperature operating fluid for use in an absorption refrigeration machine. Heat and Mass Transfer, 56, 1037–1044. https://doi.org/10.1007/s00231-019-02760-5

© 2019, Springer-Verlag GmbH Germany, part of Springer Nature. The current technical note is an expression for extending aspects of the previous work of Ajib and Karno [1] which related to the thermophysical properties of acetone / ZnBr2. The study c... Read More about Thermo-physical properties of the nano-binary fluid (acetone–zinc bromide-ZnO) as a low temperature operating fluid for use in an absorption refrigeration machine.

Numerical study of a multiple-segment metal foam-PCM latent heat storage unit: Effect of porosity, pore density and location of heat source (2019)
Journal Article
Sardari, P. T., Mohammed, H. I., Giddings, D., walker, G. S., Gillott, M., & Grant, D. (2019). Numerical study of a multiple-segment metal foam-PCM latent heat storage unit: Effect of porosity, pore density and location of heat source. Energy, 189, https://doi.org/10.1016/j.energy.2019.116108

This study numerically investigates the performance of the melting process for a PCM based heat storage system under the effect of different variables in a vertical container with a copper metal foam. Different cases were studied and compared includi... Read More about Numerical study of a multiple-segment metal foam-PCM latent heat storage unit: Effect of porosity, pore density and location of heat source.

Numerical modelling of phase change material melting process embedded in porous media: Effect of heat storage size (2019)
Journal Article
Talebizadeh Sardari, P., Walker, G. S., Gillott, M., Grant, D., & Giddings, D. (2019). Numerical modelling of phase change material melting process embedded in porous media: Effect of heat storage size. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 1-19. https://doi.org/10.1177/0957650919862974

The aim of this paper is to study the influence of enclosure size in latent heat thermal energy storage systems embedded in a porous medium for domestic usage of latent heat thermal energy storage heat exchangers. A 2-D rectangular enclosure is consi... Read More about Numerical modelling of phase change material melting process embedded in porous media: Effect of heat storage size.

Modelling a kinetic deviation of the magnesium hydrogenation reaction at conditions close to equilibrium (2019)
Journal Article
Adams, M., Grant, D. M., Stuart, A., & Walker, G. S. (2019). Modelling a kinetic deviation of the magnesium hydrogenation reaction at conditions close to equilibrium. International Journal of Hydrogen Energy, 44(55), 29123-29131. https://doi.org/10.1016/j.ijhydene.2019.04.036

A model has been derived for the magnesium hydrogenation reaction at conditions close to equilibrium. The reaction mechanism involves an adsorption element, where the model is an extension of the Langmuir adsorption model. The concept of site availab... Read More about Modelling a kinetic deviation of the magnesium hydrogenation reaction at conditions close to equilibrium.

CFD multiphase modelling of the acetone condensation and evaporation process in a horizontal circular tube (2019)
Journal Article
Mohammed, H. I., Giddings, D., Walker, G. S., & Power, H. (2019). CFD multiphase modelling of the acetone condensation and evaporation process in a horizontal circular tube. International Journal of Heat and Mass Transfer, 134, 1159-1170. https://doi.org/10.1016/j.ijheatmasstransfer.2019.02.062

With increasing demands on energy efficiency, the use of low grade waste heat using vapour absorption refrigeration systems (VARS) are receiving renewed interest. One idea is to use the combination of acetone and zinc bromide as the salt solution, wh... Read More about CFD multiphase modelling of the acetone condensation and evaporation process in a horizontal circular tube.

A System Design for Distributed Energy Generation in Low-Temperature District Heating (LTDH) Networks (2019)
Journal Article
Jones, S. R., Gillott, M., Boukhanouf, R., Walker, G., Tunzi, M., Tetlow, D., …Sumner, M. (2019). A System Design for Distributed Energy Generation in Low-Temperature District Heating (LTDH) Networks. Future Cities and Environment, 5(1), Article 2. https://doi.org/10.5334/fce.44

Project SCENIC (Smart Controlled Energy Networks Integrated in Communities) involves connecting properties at the University of Nottingham’s Creative Energy Homes site in a community scale, integrated heat and power network. The system will use distr... Read More about A System Design for Distributed Energy Generation in Low-Temperature District Heating (LTDH) Networks.

Experimental investigation of nanoparticles concentration, boiler temperature and flow rate on flow boiling of zinc bromide and acetone solution in a rectangular duct (2018)
Journal Article
Mohammed, H. I., Giddings, D., & Walker, G. S. (2019). Experimental investigation of nanoparticles concentration, boiler temperature and flow rate on flow boiling of zinc bromide and acetone solution in a rectangular duct. International Journal of Heat and Mass Transfer, 130, 710-721. https://doi.org/10.1016/j.ijheatmasstransfer.2018.10.115

Despite the increase in heat transfer properties of nano-fluids, they are not currently used in vapour absorption refrigeration systems (VARS), and there is little literature on the flow boiling behaviour of concentrated salt solutions with nano-part... Read More about Experimental investigation of nanoparticles concentration, boiler temperature and flow rate on flow boiling of zinc bromide and acetone solution in a rectangular duct.

A Control Methodology for Building Energy Management Systems (BEMS) in Heat Networks with Distributed Generation (2018)
Journal Article
Jones, S. R., Beardmore, J., Gillott, M., Boukhanouf, R., & Walker, G. (2018). A Control Methodology for Building Energy Management Systems (BEMS) in Heat Networks with Distributed Generation. Energy Procedia, 153, 295-302. https://doi.org/10.1016/j.egypro.2018.10.011

Reducing building energy consumption is important to achieve sustainable development, as a result, there is a need to investigate better energy systems with well-designed management infrastructure. At the Creative Energy Homes, a low-temperature heat... Read More about A Control Methodology for Building Energy Management Systems (BEMS) in Heat Networks with Distributed Generation.

CFD simulation of a concentrated salt nanofluid flow boiling in a rectangular tube (2018)
Journal Article
Mohammed, H. I., Giddings, D., & Walker, G. S. (2018). CFD simulation of a concentrated salt nanofluid flow boiling in a rectangular tube. International Journal of Heat and Mass Transfer, 125, 218-228. https://doi.org/10.1016/j.ijheatmasstransfer.2018.04.069

© 2018 Elsevier Ltd Improvement of heat transfer and critical heat flux (CHF) via nanofluid in pool boiling is well known. Flow boiling is usually represented by heat transfer correlations. But in the case of a concentrated salt solution nanofluid, t... Read More about CFD simulation of a concentrated salt nanofluid flow boiling in a rectangular tube.

Evolution of catalyst coated atomised magnesium spheres: an alternative thermal storage medium for concentrated solar power applications (2017)
Journal Article
Mistry, P. C., Grant, D. M., Stuart, A. D., Manickam, K., & Walker, G. S. (in press). Evolution of catalyst coated atomised magnesium spheres: an alternative thermal storage medium for concentrated solar power applications. International Journal of Hydrogen Energy, 42(47), https://doi.org/10.1016/j.ijhydene.2017.09.095

Elevated temperature cycling studies were performed on two commercial gas atomised Mg spherical powders (average diameter of 26 μm and 30 μm) with magnetron sputtered catalysts (chromium, iron, vanadium and stainless steel) applied to their surfaces.... Read More about Evolution of catalyst coated atomised magnesium spheres: an alternative thermal storage medium for concentrated solar power applications.

CFD assessment of the effect of nanoparticles on the heat transfer properties of acetone/ZnBr2 solution (2017)
Journal Article
Mohammed, H. I., Giddings, D., Walker, G. S., & Power, H. (2018). CFD assessment of the effect of nanoparticles on the heat transfer properties of acetone/ZnBr2 solution. Applied Thermal Engineering, 128, https://doi.org/10.1016/j.applthermaleng.2017.08.169

A potential novel working fluid for vapour absorption refrigeration utilising very low grade waste heat, is based on acetone and zinc bromide as the salt solution. A Computational Fluid Dynamics (CFD) model is presented of the fluid with zinc oxide n... Read More about CFD assessment of the effect of nanoparticles on the heat transfer properties of acetone/ZnBr2 solution.

A system design for distributed energy generation in low temperature district heating (LTDH) networks (2017)
Conference Proceeding
Jones, S., Gillott, M. C., Boukhanouf, R., Walker, G. S., Tunzi, M., Tetlow, D., …Sumner, M. (2017). A system design for distributed energy generation in low temperature district heating (LTDH) networks.

Project SCENIC (Smart Controlled Energy Networks Integrated in Communities) involves connecting properties at the University of Nottingham’s Creative Energy Homes test site in a community scale, integrated heat and power network. Controls will be dev... Read More about A system design for distributed energy generation in low temperature district heating (LTDH) networks.

Optimum community energy storage for renewable energy and demand load management (2017)
Journal Article
Parra, D., Norman, S. A., Walker, G. S., & Gillott, M. C. (2017). Optimum community energy storage for renewable energy and demand load management. Applied Energy, 200, 358-369. https://doi.org/10.1016/j.apenergy.2017.05.048

While the management of PV generation is the prime application of residential batteries, they can deliver additional services in order to help systems to become cost-competitive. They can level-out the demand and potentially reduce the cost and emiss... Read More about Optimum community energy storage for renewable energy and demand load management.

Efficient hydrogen storage in up-scale metal hydride tanks as possible metal hydride compression agents equipped with aluminium extended surfaces (2016)
Journal Article
Gkanas, E. I., Grant, D. M., Khzouz, M., Stuart, A. D., Manickam, K., & Walker, G. S. (2016). Efficient hydrogen storage in up-scale metal hydride tanks as possible metal hydride compression agents equipped with aluminium extended surfaces. International Journal of Hydrogen Energy, 41(25), 10795-10810. https://doi.org/10.1016/j.ijhydene.2016.04.035

In the current work, a three-dimensional computational study regarding coupled heat and mass transfer during both the hydrogenation and dehydrogenation process in upscale cylindrical metal hydride reactors is presented, analysed and optimized. Three... Read More about Efficient hydrogen storage in up-scale metal hydride tanks as possible metal hydride compression agents equipped with aluminium extended surfaces.