This fully accredited, and well respected, programme of study allows students to develop a firm foundation in the principles of Mechanical Engineering. Our graduates have found employment in a diverse range of industries. That diversity is mirrored in the range of dissertation projects our students conduct, examples of which you will find here.
The projects currently being displayed are from our current academic year. To view other years
please select below.
Ammar Alam
The Effect of Annealing on the Mechanical Property Characteristics of Alloy 42
There is 42% nickel and 58 % iron in alloy 42 and it has numerous applications
depending upon its properties like controlled expansion, weldability, shock resistant,
workability, ductility, toughness and precise expansion. In this work, the heat
treatment effect was studied on grain structure and size of alloy 42 and for this
purpose Hall-Petch relation and microscopy procedures were applied. Here, the
grain size was measured and evaluated with the material property of yield strength
and hardness. The time intervals and temperature for doing annealing and hardness
for alloy 42 were also investigated in this study. Initially, alloy 42 was treated at 600
C, 700 C and 800 C temperatures without finding major decrease in hardness but at
800 C, a small decrease was noticed with large annealing time span. Therefore,
higher temperature and longer time was required for the process of annealing and in
this case, the temperature range should be 850 C -1000 C. Then, hardness values
were found and evaluated. When the testing of alloy 42 took place, the metal was
flexed that was solved by cutting in into minute pieces and placed it into Bakelite.
Hardness and tensile testing were performed. The results of the microscopic image
analysis for grain size and tensile stressing were combined and the analysis was
performed using Hall-Petch analysis.
There is 42% nickel and 58 % iron in alloy 42 and it has numerous applications
depending upon its p...
Auorla Taylor-Phelps
A Heat Decarbonisation Study of a Domestic Building in the UK
The aim of this report is to identify the
impact of improving building fabrication and heating source system with regards
to the amount of Carbon Dioxide (CO2) produced for a domestic dwelling in the
UK. Building performance was modelled via Integrated Environment Solutions (IES)
software to compare:
an
original 1960s construction dwelling heated via a Gas Boiler (G-B)
the
same building with the same heating system but updated building constructions
and the same building with improved building
constructions and heating via an Air Source Heat Pump (ASHP)
Both the G-B and ASHP were modelled using
the average regulation compliant efficiency in order to meet the Domestic
Building Services Compliance Guide, as this seemed the fairest way to keep the
study unbiased.
From the study, it was found that the
original 1960s building had both the highest CO2 emission rate and the largest
energy consumption, 3126 kgCO2 and 14.9 MkW respectively, whilst the improved
building fabrication paired with the ASHP produced 452 kgCO2 and 2.9 MkW. Due
to current energy prices however, the ASHP had the second highest annual
running costs (£1133.92 per annum) with the original building and improved
building fabrication being £1803.42 and £601.72 per annum respectively.
Although monetary concerns are valid, CO2 emissions are arguably more important
on a global scale. A concern related with this study is the 'performance gap’,
discussed further in this report, between the simulated results and the actual
building performance. This has been addressed as far as possible within this study’s
scope.
The aim of this report is to identify the
impact of improving building fabrication and heating sour...
Daniel Wintour
Fracture Toughness of Coated Engineering Polymers
This project investigates the effect of a thin brittle coating applied to a more ductile parent material (polymer). After some research it was decided that HDPE, PVC, and Acrylic would be coated in a thin layer of epoxy resin in order to achieve this. Test and control specimens were designed according to appropriate standards and a thin brittle coating was applied to the test specimens in order to test. They were pulled apart in a 5kN Instron testing machine and data obtained was used to calculate the working fracture toughness. It was found that a thin brittle layer did indeed cause an embrittling effect on the parent material as well as the degree of embrittlement being related to the fracture toughness of the parent material. The higher the fracture toughness, the lower the embrittlement.
This project investigates the effect of a thin brittle coating applied to a more ductile parent mate...
Elizabeth Wagg
How Weather patterns affect the understanding of the degradation of the solar radiation conversion to electrical energy.
The project covers multiple aspects of the conversion of
solar radiation to electrical energy as the process of the photovoltaic effect
may be simply explained but optimising the process is complicated and immensely
intricate. So, understanding the external factors that can influence the
photovoltaic effect regarding the whole solar panel module is important. The
variable nature of the weather causes the mathematical modelling of the
influence on engineering systems such as solar panel to be complicated. The
nature is shown by comparing graphs of the solar panel data and weather, which focuses
on sunlight and temperature. Internal factors are just as important so a comparison
of material types in included, but the focus is on a solar panel type. Placement of solar
panels is also good to know as current debates seem intent on disrupting the installations.
The project covers multiple aspects of the conversion of
solar radiation to electrical energy as th...
Emily Bibby
An Investigation into the Operational Profile of Small Vessels
This report aimed to analyse the operational profile of
small marine vessels, to propose adjustments to the propulsion system which
would lead to a more environmentally friendly vessel.
Due to local, Maritime & Coastguard Agency and
International Maritime Organisation regulations typically focusing on larger,
ocean-going vessels, the vessels this report focused on were overlooked,
despite them contributing to the pollution of local communities and marine
habitat.
For this study, data was taken from data loggers aboard
Falmouth Pilot Boat and Gosport and Fareham Inshore Rescue Service. This method
provided an accurate look at the typical engine power used, and the periods of
time the engine was working at high power for, enabling the author to suggest
appropriate alterations to the propulsion system, which do not restrict the use
of the vessel.
The operational profile of Falmouth Pilot Boat showed that
the boat spent the most time at low-medium power, with only a short period
being spent at the highest power, 100kW. There are full electric pilot boats
currently in service that match the requirements of Falmouth Pilot Boat; the
pilot boat is suitable for electrification.
The operational profile for the Gosport and Fareham Inshore
Rescue Service lifeboat varied greatly depending on the callout type; an
alternative propulsion system would need to cover all types of callout, making
a diesel-electric system the most suitable, as it combines the sustainability
of electric with the high power and torque of combustion engines. There are
hybrid lifeboats currently in service that match the requirements found for the
Gosport and Fareham Inshore Rescue Service; the lifeboat is suitable for
partial electrification.
This study proved that operational profiling can be used to
assess the propulsion requirements of different types of small vessels. This
method could be applied to any vessel, if a data logger is installed.
This report aimed to analyse the operational profile of
small marine vessels, to propose adjustment...
Jacob Hughes
Development and analysis of a composite patch deployment system for minimising cure time.
Project background
This project was first considered whilst working with
Waterworxz, during a patch installation in December. The repair took over two
hours to complete due to the low temperatures, whilst waiting a discussion was
had around improvement methods. A gap in the market was quickly identified,
leading to the project you area about to view.
Project methodology
Once the projects parameters were defined and the subject
researched a series of initial ideas formed. These were quickly evaluated, and
a design selected, this design was an electrically heated mat that could be
applied to the current apparatus used in industry. With a design underway the
technical/ fun part began. This started with a series of calculations and
thermodynamic analyses starting with hand calculations and ending with 1D
transient heat and FEA analysis. The thermos dynamic models were not complete but
allowed the components for a prototype to be specified and ordered. Once the
prototype was constructed a series of experiments were done to analyse its
performance. The results were also used to help improve the theoretical
thermodynamic analysis. The combination of theoretical and experimental results
were used to form a final design.
Project conclusion
The experimental analysis proved that the concept worked, and
a test patch was installed, and the apparatus removed 40 minutes before its
control. However, due to the theoretical analysis being incomplete and the
requirement for further experimental research, no quantitative data for set
times is available. Based on the current data a design has been formed, however,
this design will be adapted and finalised as more data is collected.
The project will continue until the final design is
completed and manufactured. The product will be tested by Waterworxz and put
into service if no further work is required.
Project background
This project was first considered whilst working with
Waterworxz, during a...
Jason Hughes
An Investigation into the Technology Transfer of poka yoke into a Hospitality Environment.
Cosy Club Plymouth is a restaurant
with frequent quality control and inventory issues within the bar environment.
This project aims to uncover the root causes of these and quantify the effects
these may have on drinks quality. This report follows typical engineering
quality control techniques, with a focus on the technology transfer of poka-yoke
methods. Following a DMAIC strategy, a plan to improve quality on the bar will
be found and will provide a further insight into the efficacy of
engineering-born quality control in the service industry. The data for this
project has been collected from inventory counts performed by the business and
with check sheets that track defects. This project follows the DMAIC process to
apply poka-yoke technology to a hospitality environment with real-world data,
which was used to find numerous operations within the drinks-making process
were causing high frequencies of defects that were reaching customers. The
findings from this methodology conclude that engineering analyses have their
place in the service industry and that poka-yoke could be implemented into this
environment, producing a plan for this specific application and a potential
framework for similar investigations.
Cosy Club Plymouth is a restaurant
with frequent quality control and inventory issues within the ba...
Max Matthews
Investigation of the Effect of Graphene Nanoplatelet Reinforcement on the Mode II Fracture Toughness of Adhesively Bound Composites
This project aimed
to investigate the effects of using graphene to reinforce an adhesive epoxy
joint, of a composite material, in order to enhance the fracture toughness when
loaded in mode II.
In order to do
this, specimens were manufactured using vacuum assisted resin transfer moulding
(VARTM), before being waterjet-cut and adhesively bound to one another using
neat epoxy, followed by samples with 0.5wt% and 1.0wt% graphene content.
These Specimens
were then testing using End-notched flexure (ENF) testing. This testing
followed the guidelines of ASTM D7905/D7905M-14 in order to conduct testing.
Testing required compliance calibration testing to be conducted before full
fracture testing was conducted on each specimen to determine their individual mode
II fracture toughness.
Neat epoxy samples
were found to have an average mode II fracture toughness of 6.37kJ/m2,
while adding 0.5wt% graphene reinforcement improved this value by 32% to an
average of 8.42kJ/m2. 1.0wt% Graphene reinforcement was found to improve
this value even further to 10.5kJ/m2, a 65% improvement compared to
neat epoxy.
Microscopy revealed
graphene agglomeration to be occurring within samples. When this occurs, it is
likely that mechanical properties of a material will not be enhanced optimally,
meaning that had appropriate dispersion techniques been used, these results
could be improved by a larger amount.
This project aimed
to investigate the effects of using graphene to reinforce an adhesive epoxy
joi...
Ralph Todhunter
CFD study on the impact of an end plate on an open-wheel racing car front wing
This was a computational study that aimed to investigate the
impact of an endplate on the performance of a racing formula style front wing.
ANSYS CFX was used to simulate air flow over a NACA6412 foil with and without an
endplate. This was repeated in free-stream and in ground effect. The end plate was
found to increase the lift coefficient of the foil in ground effect by 1.16%
and by 0.36% in free stream. It was also found to decrease the drag coefficient
by 4.40% in ground effect and by 6.05 % in free stream. This suggests that the inclusion of the end plate improved the performance of the front wing. The study also
suggested the flow could be significantly manipulated by the endplate, which opens
the opportunity to deliberately direct the flow over trailing aerodynamic
apparatus on the vehicle.
This was a computational study that aimed to investigate the
impact of an endplate on the performan...
Said Almadhoun
Analysis of thermal barrier coatings Using Smoothed Particle Hydrodynamics
The thermal spraying of thermal barrier coatings is investigated in this dissertation using smoothed particle hydrodynamics (SPH), a meshless Lagrangian approach for modelling fluid dynamics problems. To account for the intricate interactions between molten droplets and the substrate surface, the dissertation proposes a numerical model based on SPH that incorporates heat transport, solidification, and deformation. By comparing it to experimental data and other numerical approaches, the model is validated. The model is then applied to investigate the impacts of various impact velocities and materials on coating quality and performance. The dissertation illustrates that SPH is a powerful tool for modelling thermal spraying processes and provides insights into coating process parameter and substrate property optimisation.
The thermal spraying of thermal barrier coatings is investigated in this dissertation using smoothed...
Saleh Aljohani
Design a Solar Water Heater to Reduce Heat Overload in Summer
Solar heating is the most important environmentally friendly technology, and among these uses is solar water heaters. This research aims to provide a high-efficiency design for a solar home heater and reach the required temperature for domestic uses while reducing heat overload in the summer and solving the problem of calcification.This paper deals with previous studies in this field. The third section deals with solar home heaters and their types and components. In contrast, the fourth section deals with the analytical mathematical study of the energy of the physical model of the solar house. The heater, the equations governing it, and the cases studied through it were developed.The study was conducted in the cities of Jubail and Plymouth due to the differences in temperatures and solar radiation. Studying the volume of the hot water tank cylinder compared with the number of collectors is determined successively according to the actual water consumption quantities in the house. Water temperatures in the city of Jubail reached more than 60 degrees Celsius. In contrast, in Plymouth City, it did not exceed 35 degrees Celsius, confirming the system's success factors mentioned in the report. The home solar heater's proposed design helped improve efficiency and reduce the extra heat load.
Solar heating is the most important environmentally friendly technology, and among these uses is sol...
Thomas Arrowsmith
The Design and Construction of a Safe and Efficient Laboratory Scale Propane Forge
The forging industry has evolved to utilise a range of
forges to heat and work metals for product production. Different forge types have
advantages and disadvantages and therefore proving efficiency levels is highly
beneficial. The propane - fuelled type was selected due to component availability, scale of build
and ease of finding a test environment. This fits well to the aim of this project,
which was to design and construct a laboratory scale forge and then test its safety
and efficiency. This included research to explore key factors that could impact
efficiency, such as burner capability and heat retention. The mathematical basis for
key aspects such as optimum combustion was also investigated. A detailed product
specification was compiled, supported by initial drawings and then detailed
assembly of a newly designed forge using computer - aided (CAD) software
(Solidworks 2023). Components were manufactured and then assembled to form
fully functioning forge. This included an outer shell, burner and insulation. The set
up also included a range of supporting equipment, such as a propane tank. Data was
collected during the test phase and results reviewed. The forge was shown to be highly
efficient, when compared to test plan expectations, reaching sufficient temperatures
to work the majority of metals selected for investigation. It was also
shown to be capable of achieving the optimum level for combustion (to reduce metal
oxygenation), simultaneously proving the theoretical calculations from
research. Heat retention was proved to be effective, validating the insulation components
selected. Health and safety requirements were met fully, across a range of
specified clothing and equipment. Recommendations for further improvements were
made, largely focused on potential advances in efficiency through manufacturing
and set up changes to enhance air flow and combustion, heat retention, working of
specific metals and removing operational issues such as tank freezing.
The forging industry has evolved to utilise a range of
forges to heat and work metals for product p...