All Outputs (22)

A phase-change model for diffusion-driven mass transfer problems in incompressible two-phase flows (2022)
Journal Article

We present a VOF-based numerical method for incompressible Direct Navier–Stokes (DNS) equations for diffusion-driven phase-change flows. A special emphasis is placed on the treatment of velocity discontinuities across the interface. A novel algorithm... Read More about A phase-change model for diffusion-driven mass transfer problems in incompressible two-phase flows.

4-MW Class High-Power-Density Generator for Future Hybrid-Electric Aircraft (2021)
Journal Article

This article describes the underpinning research, development, construction, and testing of a 4-MW multithree phase generator designed for a hybrid-electric aircraft propulsion system demonstrator. The aim of the work is to demonstrate gravimetric po... Read More about 4-MW Class High-Power-Density Generator for Future Hybrid-Electric Aircraft.

Research and Realization of High-Power Medium-Voltage Active Rectifier Concepts for Future Hybrid-Electric Aircraft Generation (2020)
Journal Article

In this article, we describe the research and development of a 3 kV active rectifier for a 4 MW aerospace generator drive system demonstrator. The converter is fed by a multiphase high-speed/high-frequency permanent magnet generator. The main aim of... Read More about Research and Realization of High-Power Medium-Voltage Active Rectifier Concepts for Future Hybrid-Electric Aircraft Generation.

Development of high performance recycled carbon fibre composites with an advanced hydrodynamic fibre alignment process (2020)
Journal Article

Carbon fibre composites have great potential for vehicle lightweighting but the high cost and environmental impact of their production tends to largely undermine the advantages in nonaerospace applications. Recycled fibre has the potential to signifi... Read More about Development of high performance recycled carbon fibre composites with an advanced hydrodynamic fibre alignment process.

From aviation to aviation: Environmental and financial viability of closed-loop recycling of carbon fibre composite (2020)
Journal Article

© 2020 By 2050, the aviation sector is expected to generate about 500,000 tonnes of accumulated carbon fibre reinforced plastic waste from the production and end-of-life phase. In this study, aircraft interior applications of recycled carbon fibre (r... Read More about From aviation to aviation: Environmental and financial viability of closed-loop recycling of carbon fibre composite.

Scalable Continuous Vortex Reactor for Gram to Kilo Scale for UV and Visible Photochemistry (2020)
Journal Article

© 2020 American Chemical Society. We report the development of a scalable continuous Taylor vortex reactor for both UV and visible photochemistry. This builds on our recent report (Org. Process Res. Dev. 2017, 21, 1042) detailing a new approach to co... Read More about Scalable Continuous Vortex Reactor for Gram to Kilo Scale for UV and Visible Photochemistry.

Effect of fibre suspension jet stability on alignment quality of discontinuous carbon fibre tapes (2019)
Journal Article

A hydrodynamic alignment process has been developed for converting discontinuous random carbon fibres into tapes with a highly aligned orientation distribution to greatly improve the applicability of recovered fibres to composite parts.... Read More about Effect of fibre suspension jet stability on alignment quality of discontinuous carbon fibre tapes.

Numerical investigations of convective phenomena of oil impingement on end-windings (2019)
Journal Article

A novel experimental rig for analysing intensive liquid cooling of highly power-dense electrical machine components has been developed. Coupled fluid flow and heat transfer have been modelled, using computational fluid dynamics (CFD), to inform the d... Read More about Numerical investigations of convective phenomena of oil impingement on end-windings.

Fluid flow and heat transfer analysis of TEFC machine end regions using more realistic end-winding geometry (2019)
Journal Article

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.

The influence of non-ionic surfactants on electrosynthesis in extended channel, narrow gap electrolysis cells (2019)
Journal Article

It is demonstrated that the addition of a non-ionic surfactant (Triton X-100 or Brij L23) to the electrolyte medium leads to a significant improvement to the current efficiency for the methoxylation of N-formylpyrrolidine in a flow electrolysis cell... Read More about The influence of non-ionic surfactants on electrosynthesis in extended channel, narrow gap electrolysis cells.

Development of aircraft electric starter-generator system based-on active rectification technology (2018)
Journal Article

More-electric aircraft (MEA) has become a dominant trend for modern aircraft. On-board MEA, many functions, which are conventionally driven by pneumatic and hydraulic power, are replaced with electrical subsystems. Starting aircraft engines with an e... Read More about Development of aircraft electric starter-generator system based-on active rectification technology.

Comparing life cycle energy and global warming potential of carbon fibre composite recycling technologies and waste management options (2018)
Journal Article

Carbon fibre reinforced polymers (CFRP) are used in increasing quantities as they have some of the best properties in terms of specific strength and stiffness of any widely available material. By 2020, annual global CFRP production is expected to be... Read More about Comparing life cycle energy and global warming potential of carbon fibre composite recycling technologies and waste management options.

An assessment of financial viability of recycled carbon fibre in automotive applications (2018)
Journal Article

Carbon fibre (CF) recycling has been demonstrated to achieve reductions in environmental impacts compared to virgin CF production, but there is limited understanding of the financial viability of recycling and reutilisation of recycled CF (rCF). In t... Read More about An assessment of financial viability of recycled carbon fibre in automotive applications.

Comparative LCA of different graphene production routes (2017)
Journal Article

This study is an LCA of three graphene production routes: electrochemical exfoliation of graphite rods, chemical oxidation and subsequent chemical or thermal reduction and chemical vapour deposition (CVD). Different processes for each route are analy... Read More about Comparative LCA of different graphene production routes.

Environmental aspects of use of recycled carbon fibre composites in automotive applications (2017)
Journal Article

The high cost and energy intensity of virgin carbon fibre manufacture provides an opportunity to recover substantial value from carbon fibre reinforced plastic wastes. In this study, we assess the life cycle environmental implications of recovering c... Read More about Environmental aspects of use of recycled carbon fibre composites in automotive applications.

Recycling graphene from supercapacitor electrodes as reinforcing filler for epoxy resins (2017)
Journal Article

A wet shredding process has been developed for recycling graphene from the electrodes of supercapacitors into polymer composites. At first, supercapacitors are cut open to expose the interior graphene based electrodes. The electrodes are heat-treated... Read More about Recycling graphene from supercapacitor electrodes as reinforcing filler for epoxy resins.

Continuous Photo-Oxidation in a Vortex Reactor: Efficient Operations Using Air Drawn from the Laboratory (2017)
Journal Article

© 2017 American Chemical Society. We report the construction and use of a vortex reactor which uses a rapidly rotating cylinder to generate Taylor vortices for continuous flow thermal and photochemical reactions. The reactor is designed to operate un... Read More about Continuous Photo-Oxidation in a Vortex Reactor: Efficient Operations Using Air Drawn from the Laboratory.

Energy and environmental assessment and reuse of fluidised bed recycled carbon fibres (2017)
Journal Article

© 2017 Elsevier Ltd Carbon fibre reinforced plastic (CFRP) recycling and the reutilisation of the recovered carbon fibre (rCF) can compensate for the high impacts of virgin carbon fibre (vCF) production. In this paper, we evaluate the energy and envi... Read More about Energy and environmental assessment and reuse of fluidised bed recycled carbon fibres.

A comparative study of open and closed heat-engines for small-scale CHP applications (2016)
Journal Article

In this paper the authors compare and contrast open and closed-cycle heat engines. First of all, by way of example and to aid discussion, the performance of proprietary externally heated closed-cycle Stirling engines is compared with that of internal... Read More about A comparative study of open and closed heat-engines for small-scale CHP applications.

The shear viscosity of carbon fibre suspension and its application for fibre length measurement (2015)
Journal Article

The viscosity of short carbon fibre suspensions in glycerol aqueous solution was measured using a bespoke vane-in-cup viscometer, where the carbon fibre has an aspect ratio from 450 to 2209. In the semi-concentrated regime, nL3 ranging from 20 to 440... Read More about The shear viscosity of carbon fibre suspension and its application for fibre length measurement.