Our Projects

Explore our current students research topics and the PhD projects that you could work on

Showing 11 to 20 of 70 results

In Progress
Transport Policy and Economics
Barriers and enablers of microcar adoption within the UK

Supervisor:  Dr Elies Dekoninck, Dr Daniela Defazio, Prof Dimo Dimov, Prof Michael Lewis

Student(s):  Hannah Pickard


The UK is heavily reliant on private modes of transport. The car offers a type of freedom that other modes of transport don’t: flexibility, privacy, and often an extension of our own identities. The size of the car has increased steadily over the past few decades, meaning they require more resources to build, are more dangerous to pedestrians, and emit more greenhouse gases. The average number of occupants in our car journeys is below two, and most journeys are within cities and towns. Traffic congestion is a norm due to our reliance on the car.

The microcar may offer a solution to many of these issues. These tiny cars are less resource-intensive, easier to drive than average-sized cars, and are also cheaper to buy and run. A city filled with microcars means less congestion and a safer environment for pedestrians. However, the microcar industry is incredibly small, offering few options for consumers. How do we build the demand for microcars, and how can we make them desirable? These are the questions my PhD project will aim to answer.

In Progress
Transport Behaviour and Society
Building Healthy Cities: Exploring Connections between the Built Environment, Travel Choices, and Health

Supervisor:  Prof Esther Walton, Prof Andrew Heath

Student(s):  Faye Sanders


Faye’s PhD seeks to improve our understanding of how the built environment (such as the transport networks and transport facilities around our homes) influences mental health, and whether this can be explained by active travel behaviour.

There are considerable gaps in knowledge that need addressing, such as uncertainties around which factors in the built environment are particularly important for health. By investigating the role of active travel behaviour in these relationships, this PhD aims to shed more light on why we see frequent associations between the built environment and mental health. 

Faye will also explore these relationships in childhood, and investigate how the built environment (including transport networks and facilities) and travel behaviour shapes child brain development. This is important for understanding why interventions targeted at the built environment and travel choices are not only important for planetary health, but also for population health.

In Progress
Low Carbon Fuels
Chemical Vapour Deposition for Advanced Lithium Ion Battery Materials

Supervisor:  Dr Andrew Johnson, Prof Matthew Jones

Student(s):  Daniel Mason


The ever-growing global presence of the electric vehicle is seen as a positive solution to decarbonise the transport industry. As a result, chemists and material scientists are aiming to develop materials that can be used as a backbone for improved electrodes and electrolytes for next-generation batteries and supercapacitors.

Dan's research will focus on the generation of materials that are considered to be part of the next generation of batteries through the use of non-line-of-sight deposition techniques, including chemical vapour deposition (CVD) and atomic layer deposition (ALD). This will provide opportunities to produce current collectors and thin films that are well-defined. Through the methods chosen, the microstructure, morphology and chemistry of the composites can be finely-tuned to overcome potential challenges that battery materials face, such as volume changes during charging and the mechanical, chemical or electrochemical degradation of the electrodes.

Focus will be drawn to potential lithium- or sodium-chalcogenide intercalation or conversion type electrode, or electrolyte materials, such as Lithium sulfides, lithium phosphates and lithium anti-perovskites, and their sodium counterparts.

The initial stages will involve the synthesis of molecules that can be used as precursor material for CVD and ALD, which will then be characterised via a host of methods, including X-ray diffraction, NMR and elemental analysis. The thermal decomposition will be assessed, as will the ability of the precursor to create a thin film. The thin films will be characterised using scanning electron microscopy and will be assessed on its ability as a charge carrier.

The advantages of the chosen techniques (CVD and ALD) will be exploited to improve upon cell performance. These include the ability to deposit uniform layers on a surface which can be used as a protection against chemical degradation, the ability to deposit conformally active materials onto structured backbones, such as nano-tubes, -flakes or -rods. There is also the advantage of high levels of control over stoichiometry of new materials that will be tailored to suit the cell performance by appropriately choosing the precursor materials, changing the deposition parameters and through chemical doping.

In Progress
Chemical Energy Converters
Combustion and Emission Modelling for Hydrogen Combustion Engines

Supervisor:  Dr Stefania Esposito, Prof Sam Akehurst

Student(s):  Aidan King


Modelling has become critical in recent years for the development of new engine technologies, this is especially important for hydrogen due to its wide range of potential operation. However, modelling hydrogen combustion is particularly challenging due to its wide operating range and complex flame behaviour, including short quenching distances and susceptibility to flame instabilities.

As part of the Prosperity Partnership research group, experimental data will be gathered from a hydrogen engine at IAAPS. Combustion and emissions will be modelled using low-cost 1D simulation tools to generate accurate boundary conditions for more advanced 3D Computational Fluid Dynamics (CFD) simulations. This experimental data will serve to validate both the 1D and 3D models, ensuring their predictive accuracy across a range of operating conditions.

The CFD analysis will enhance understanding of hydrogen combustion and emission formation mechanisms, supporting the optimisation of hydrogen engine development.

In Progress
Digital Systems, Optimisation and Integration
Context enhanced tracking algorithms for improved vision-based vehicle trajectory and intention analysis

Supervisor:  Dr Nic Zhang, Prof Richard Burke

Student(s):  Samuel Lockyer


Computer vision plays a crucial role in almost all autonomous driving systems and has the potential to be used with traffic management systems of the future. This technology involves the use of cameras and image processing algorithms to interpret and understand the surrounding environment, in the context of automation, allowing the more efficient and accurate management of traffic, automatic crash detection systems, parking management and autonomous driving applications.

In this research project, the primary objective is to enhance the capabilities of computer systems in understanding and predicting the behaviour of vehicles on the road, with the ultimate goal of improving road safety and efficiency. The project will focus on improving the robustness of object tracking by leverage the increased predictability and contextual information of vehicle driving scenarios. Object tracking is the process of observation of vehicles and important information about them, colour, vehicle type, shape, size etc, and the correlation of these properties across video frames in order to associate the same vehicle across an entire video.

The aim is to develop advanced computer algorithms capable of accurately identifying key attributes of vehicles, such as their movements and intentions, in real-time. This understanding of vehicle behaviour will contribute to safer driving scenarios. Additionally, the project seeks to improve existing object tracking algorithms by incorporating contextual information, like lane detection, to enhance trajectory prediction and situational awareness. The involvement of contextual clues specific to automotive situations should allow the algorithms to provide a more robust and reliable result that more generic algorithms.

Sam's project will be completed using a mix of analytical and machine learning algorithms. Where the two different approaches will be compared against each over for speed accuracy and ease of use. In an attempt to find a solution that can both provide usable results in a real-world scenario but also run on systems capable of being deployed.

In Progress
Propulsion Electrification
Design of high-performance electric motors for transport electrification

Supervisor:  Dr Xiaoze Pei, Dr Vincent Zeng

Student(s):  Connor de Trafford


Climate change as a result of human activities has driven the need to reduce carbon emissions in all aspects of our lives. In 2018 commercial flight equalled 2.8% of total carbon emissions. Whilst the immediate objective should be to mitigate flying and improve alternative transportation options, a long term objective should be to decarbonise flight. The most enticing technology to accomplish this may be electric aircraft powered by hydrogen fuel cells due to their high energy density compared with batteries. However, to  a greater degree than cars or trains, aircraft are extremely limited by their mass, as a result, conventional electric motors may not be viable to drive large aircraft due to their relatively poor power density compared with jet propulsion. Instead, superconducting electric motors become necessary for their high power density, but these require heavy and energy intensive cooling systems. 

In a holistic view of an electric aircraft system, efficiency and power density must be improved across all areas to reduce the total weight and cooling power. 

This PhD project is focused on the design of a high speed motor and it's place in this system. High speed motors are essential components in driving airflow into the fuel cell and circulating cooling fluid. By improving their efficiency and power whilst operating in these unique conditions, the overall system efficiency can be improved. 

Designing motors for these speeds requires unique challenges to be overcome, the high speed produces a lot of force on the moving parts, special materials are needed to provide additional strength. the high frequency has profound effects on the efficiency of the motor, effects that must be mitigated in unique ways. Friction with the bearings and with the air become a larger problem.
In Progress
Transport Behaviour and Society
Designing Inclusive MaaS for Neurodivergent Populations

Supervisor:  Dr Elies Dekoninck, Dr Meng Meng

Student(s):  Dmitry Leshkov


Dimitry's research focuses on inclusive design for emerging Mobility as a Service (MaaS) systems, targeting neurodivergent populations with Autistic Spectrum Disorder (ASD), Attention Deficit Hyperactivity Disorder (ADHD), Dyslexia, and Dyspraxia. Individuals with these cognitive differences are part of the broader spectrum of neurodiversity and represent an estimated 15% of the global population.

Existing MaaS systems integrate multiple mobility solutions into one platform and involve a complex network of stakeholders. Despite of this complexity, these platforms overlook the unique requirements of users with diverse cognitive profiles. Moreover, these design needs of these demographics are underexplored in academic community across disciplines. This oversight not only impacts user adoption, but also aggravates social inequalities.

In collaboration with multidisciplinary team of experts, and through co-designing with neurodivergent individuals, this research aims to identify unmet needs of target public mobility users, develop system prototypes, conduct empirical testing, and propose tailored design recommendations for inclusive MaaS.

Completed
Chemical Energy Converters
Development of Fluid and Material Testing Facilities for Cryogenic Aircraft Fuel System Components

Supervisor:  Dr Andrew Rhead, Dr Kei Takashina

Student(s):  Dr Onur Tokkan

Industry Partner:  GKN


Cryogenics is a branch of science studying materials that undergoes phase change between -150 and -273 Degrees Celsius. Most popular examples for cryogenic materials are Oxygen,Nitrogen,  Helium and Hydrogen.

Cryogenics have been widely employed as a part of multiple industries such as but not limited to: Aviation, Automotive, Medical and Storage industries. Examples of utilisation cases can be listed as: Rocket fuel and pre-conditioner, Fuel cell propulsion systems, cryosurgery and refrigeration units for cold cargo.
Leidenfrost effect is a physical phenomenon where, a liquid on a hot surface that is above its boiling point produces a vapour layer that acts as an insulation between the liquid and the hot surface. The vapour layer produced acts as an insulation limiting the heat transfer rate between the liquid and the surface. By utilising surface properties, the flow of Leidenfrost Droplets can be sustained which can be described as "Self-propelled Leidenfrost Droplets".
Due to the increasing consciousness around global warming and the request of reducing transportation emissions, propulsion systems are required to be more efficient and less polluting then ever. In support of this, commercial aviation and automotive companies have been seeking alternative propulsion solutions one of which is fuel cells which are powered by cryogenics resulting in clean propulsion without harmful emissions. Because cryogenic systems so far have only been used in specialised and limited life cycle applications in propulsion such as rocket fuels, long term effects and systems level applications in long term must be explored in order to commercialise such systems. Examples of such propulsion systems have been brought to market by multiple OEMs with the price being the largest penalty as well as the complexity, storage and weight challenges surrounding fuel cell systems.
The study will aim to explore the capability of utilising Self-propulsion of Cryogenics inside a Pipe mostly aimed at fuel delivery systems in order to understand the boiling characteristics and physical interactions with the internal pipe surface. The Self-propulsion inside the pipe is aimed to be achieved by the introduction of in-pipe structures to manipulate the flow during the Leidenfrost regime of the cryogenic liquids to be utilised.
The study is planned to be conducted both in practical experimentation and simulation in order to verify and test varying conditions and flow regimes. Initially, the testing will begin with liquid nitrogen as a working fluid which will then be changed to liquid hydrogen. The reason for the  utilisation of liquid nitrogen at the start of the study is to understand the cryogenic working environment and the challenges attached to it. Simulation studies will be employed in order to understand flow regimes that are not possible to replicate using practical means and to verify the results of the practical experimentation.

In addition to the flow experiments, during this PhD a mechanical testing cryostat will be developed. Following the cryogenic theme, this system will aim to undertake mechanical testing of novel materials to understand their capability down at hydrogen temperature (20 K). The system is planned to be designed, developed and manufactured in house (where possible). The design must accommodate for various types of mechanical testing to be implemented while maximising the sample testing rate. 

In Progress
Transport Policy and Economics
Economic and Computational Aspects of Smart Transportation Systems

Supervisor:  Dr Ron Lavi, Dr Jie Zhang

Student(s):  Yue Wang


Yue's project aims to improve traffic management by studying how economic incentives, such as tolls and subsidies, can reduce congestion and make traffic systems more efficient. Traffic management can be viewed as a resource allocation problem, where limited road space should be used strategically to reduce congestion and help all drivers reach their destinations efficiently.

Typically, drivers will act in their own interests choosing the route they believe will minimise their travel time, which often leads to system inefficiencies. In this project, congestion game models will be used to better understand how individual route choices affect the entire system and how incentives can encourage choices that enhance overall traffic flow and reduce total travel time.

In real-world settings, drivers enter a network at different times; however, current studies have only focused on static congestion games, where drivers enter the network simultaneously.

Yue's project will first explore the link between static and dynamic congestion games to identify how their dynamics differ. Based on these insights, we will further examine the effectiveness of tolls and subsidies in dynamic settings. For instance, while marginal cost toll pricing has shown promise in reducing inefficiencies in static scenarios, it remains unknown whether it will perform similarly in time-varying conditions.

By developing strategies for applying these incentives in more realistic settings, this research aims to lay the groundwork for future, practical applications. The findings could ultimately help guide policies that improve traffic flow and reduce congestion without requiring extensive infrastructure changes.

Completed
Transport Policy and Economics
The Economics of Bus Fleet Electrification: Guidance for Private Financing

Supervisor:  Dr Charles Larkin, Dr Winifred Huang

Student(s):  Dr Jac McCluskey


The focus of Jac's thesis is to research the economic realities and financing requirements of efforts to electrify UK bus fleets, with a particular focus on SME operators who may feel more uncertain and less supported by policymakers. By working closely with a small to medium sized UK electric bus operator he hopes to capture the additional complexities and considerations often lost in purely theoretical academic study. Specifically, he will use novel methods and real world data to connect differences in scheduling, vehicle downtime, and financial ratios to their economic cost.

It is his aim that research conducted within this thesis will deliver clear guidance to policymakers and bus operators seeking to decarbonise their fleets, while also encouraging future research to consider the issues raised by his analysis