Get documents about "Doc1
Document Sample
The M.S. and Ph.D. Thesis Proposals to be supervised by the academic staff in the
Engineering Faculty, starting from the fall 2010-2011 academic year are as follows:
Staff Name Thesis Proposal Title to be Supervised in the 2010-2011 Academic Year
1. RFID-based wireless manufacturing monitoring and analysis system,
design and implementation (Ph.D. Thesis Proposal): Wireless
manufacturing relies substantially on wireless devices such as RFID (radio
frequency identification) or Auto ID (automatic identification) sensors, and
wireless information/ communication networks such as Wi–Fi for the
collection and synchronization of manufacturing field data. In this Thesis
Proposal we are going to discuss the recent developments in RFID-based
WM solutions. The study will be conducted by examining related
whitepapers, case reports and research articles available in the literature,
and by reflecting on the insights recently experienced in developing
prototype solutions. Typical motivations will be presented to highlight why
and how manufacturers can benefit from applying WM solutions in
addressing shop-floor challenges and facilitating contemporary
manufacturing strategies. Representative WM manufacturing applications
and potentials, in the areas of product assembly, part fabrication, just-in
time (JIT), mass customization, manufacturing asset management and
maintenance, and product lifecycle is going to discuss. At the next step a
virtual reality environment would be simulated to show the efficiency of
using RFID technology in production lines, finally results will be compared
with traditional systems to investigate the benefits. The last step is to
perform a RFID-enabled real-time wireless manufacturing in an assumed
factory as the case study.
2. Virtual Forming Analysis enhancing rapid prototyping in collaborative
product development (Ph.D. Thesis Proposal): VFA is a transparent and
remote virtual simulation and testing paradigm utilized in a service-oriented
Prof.Dr. Majid collaboration environment. A VFA tool embedded in the metal forming
HASHEMIPOUR design process can be used to represent an analysis and imply the physical
and mechanical effects of a forming process. Our research aims can be
categories as; how forming operation can be embedded transparently and
remotely into a service-oriented collaborative forming design environment,
how the integrated process such as collaborative networks can help a
designer to quickly select robust forming design and process for rapid
manufacturing, A new virtual forming analysis concept Instead of the
current sequential process for verifying and validating a forming design
concept will be introduced to predict the various effects of plastic forming, A
standard manufacturing information model in forming process for support
DFM in virtual medium and small size enterprise will be deigned, A web
based forming information model for sharing technology and software and
application service in collaborative product development will be developed.
3. Multi-agent system architecture for collaborative wireless sensor
networks based on IEC 61499 function blocks (Ph.D. Thesis Proposal):
The Wireless Sensor Network (WSN) is a technology which is newly adopted
in a wide range of application such as intelligent buildings, environmental
monitoring, military, security systems and industrial automation. The
network comprised of many nodes which are developed of low cost, low
power and multifunctional. Comparing Multi-agent System and WSN, one
can say that each node may be modeled as an agent, since each node is
autonomous, collaborative and even self organizing. Several researches have
been done on implementing MAS on WSN. However, there is a lack of low
level (hardware and embedded system) implementation of the agents on
WSN. On the other hand, it would be nice if the low level implementation
could be based on a well-known standards in the context of distributed
systems. IEC 61499 Function Blocks (FB) is a new standard to model the
distributed systems. According to the IEC proposal, function blocks are
suitable for industrial processes and measurements. Many research have
been done on modeling MAS using IEC 61499 in order to control the
distributed systems. In this context, an architecture for modeling WSN with
IEC 61499 will be proposed.
1. Development of a computer code for solving the Navier -Stokes
equations on unstructured meshes using multigrid techniques (PhD.
Thesis): A general purpose computer code will be developed in Fortran
language for solving the Navier-Stokes equations together with any other
scalar flow variable in complex geometries on unstructured meshes using
multigrid techniques.
2. Simulation of turbulent impinging jets using a hybrid LES-RANS model
Prof.Dr. (PhD. Thesis): A computer program will be developed for the simulation of
Ġbrahim SEZAĠ turbulent impinging jets using a hybrid Large Eddy Simulation (LES) -
Unsteady Reynolds Averaged Navier-Stokes Equations (URANS) method on
nonorthogonal meshes. LES gives accurate results for turbulent flows.
However, fine grid requirements of LES in the near wall region makes it too
costly for wall bounded turbulent flows. The object of hybrid LES-RANS is to
eliminate the requirements of high near-wall resolution in wall parallel flows
where a URANS model is used in the near wall region.
1. Numerical Investigation of Transpiration Cooling on Liquid Rocket
Thrust Chamber Wall (Ph.D. Thesis Proposal): Transpiration cooling, also
named as film cooling, can be used as an effective method of cooling the
thrust chamber wall of a liquid rocket engine. It involves a liner similar to
that in the transient heat transfer method as well as injection of a coolant as
in regenerative cooling method. A porous material or a combination of
porous materials is imbedded inside of the thrust chamber wall. A coolant
fluid, typically the propellant, is then pushed through the porous material
until it ultimately reaches the thrust chamber wall. The thermal properties,
most notably the effective conductivity, of the coolant and porous matrix
provide an efficient cooling mechanism for the thrust chamber wall. The
motive for this work comes from the work done at the German Aerospace
Center (DLR) and the work done by Air Force Research Lab (AFRL) at Wright
Air Force Base. The concepts developed at AFRL are a part of the Integrated
High-Payoff Rocket Propulsion Technology Program (IHPRPT) and involve the
use of transpiration cooling as a way to improve current, actively cooled
thrust chambers. The AFRL concept that involves the use of two porous
matrix system, a porous inner liner and intermediate lightweight porous
foam coolant plenum was expected to significantly reduce system cost, part
count, and coolant volume. This investigation is a theoretical extension to
the work of AFRL that teamed up with Ultramet for developing transpiration
cooling system using metallic porous matrices and ceramic porous matrices
and DLR that promoted ceramic matrix composite technologies for the same
purpose.
2. Mathematical Modeling of Magnetic Regenerator Refrigeration Systems
(M.S. Thesis Proposal): Active Magnetic Regenerator Refrigeration (AMRR)
systems are mainly based on magnetocaloric effect of some special solid
material instead of fluorocarbon and ammonia which are extremely harmful
Prof.Dr. to the environment. During the last three decades a variety of cooling
Hikmet AYBAR systems are designed using magnetic refrigeration technology at room
temperature. The aim of this Thesis Proposal is to present a mathematical
model of different AMRR Systems. In this way it would be very easy to
predict the results of the system by using various inputs such as refrigerant
material, fluid velocity, etc.
3. Evaluation of Thermo-physical Properties of Nanofluids (M.S. Thesis
Proposal): Nanofluids are engineered colloids that are base fluid and
nanoparticles. Base fluids are water, organic liquid. The size of
nanoparticles is between 1 nm and 100 nm. Nanoparticle materials are
oxides (e.g., Al2O3, ZrO2, SiO2, CuO), metals (e.g., Au, Cu), and carbon (e.g.,
PyC, diamond, C60). Some applications of nanofluids include heat transfer,
pharmaceutics and cosmetics, and paints. Researches in heat transfer have
been carried out over the previous several decades, leading to the
development of the currently used heat transfer enhancement techniques.
The use of additives is a technique applied to enhance the heat transfer
performance of base fluids. Recently, as an innovative material, nanometer-
sized particles have been used in suspension in conventional heat transfer
fluids. Three properties make nanofluids promising coolants: increased
thermal conductivity; increased single-phase heat transfer coefficient;
increased critical heat flux. Unfortunately, viscosity increases also. The aims
of this Thesis Proposal are: State-of-art review of studies in open literature
about thermo-physical properties of nanofluids; Investigation and
comparison of analytical methods to evaluate thermo-physical properties of
nanofluids; Estimation of thermo-physical properties of some nanofluids in
cooling application.
1. Solar Cooling of Buildings in Hot and Humid Climates (Ph.D Thesis
Proposal): The student will be expected to make a thorough review of the
techniques employed to cool buildings by solar energy. A case study that
involves design, experimental work and simulation will be performed. A
thermo-economic analysis will also be carried out for buildings in N. Cyprus
weather conditions. The student is expected to have a good knowledge of
refrigeration and air conditioning before starting this Thesis Proposal.
2. Performance of a PV integrated Solar Still (M.S. Thesis Proposal): A solar
still is being built in the department that incorporates a PV panel for
enhanced performance. The M.S. Thesis Proposal involves experimental and
theoretical analysis.
3. Optimum Slope Angle of Flat-Plate Solar Collectors for Domestic Water
Heating Applications (M.S. Thesis Proposal): Often the optimum solar
collector-slope angle is determined based on the maximum energy captured.
However, in water heating this does not mean that the energy utilization
would be at its maximum too since in summer the water is over-heated and
Assoc.Prof.Dr. in winter there is a need of using the auxiliary heater to top up the required
Uğur ATĠKOL energy. This is due to the fact that when humans take a shower the
temperature of the water must be at approximately 40 deg C for a
comfortable shower. There is a need to make an analysis considering this
constraint. Exergy analysis can be an appropriate tool.
4. Feasibility of Small-Scale Wind Turbines in Famagusta (M.S. Thesis
Proposal): A Rutland 913 Windcharger is installed on the roof of the
Mechanical Engineering Building and set to operate in “stand-alone” mode.
It is required to measure the electricity produced throughout the year,
energy losses due to storage in the batteries and make an economic
feasibility analysis. For this reason, there is a need of setting up a data
acquisition system to collect the necessary data. The student is expected to
be familiar with measurement and data acquisition systems.
5. Performance of a Free-Convection Solar Air Heater (M.S. Thesis
Proposal): A solar air heater which contains 2 air passages and 3 layers of
wire mesh has been constructed recently. The M.S. Thesis Proposal is
essentially an experimental work aiming at analyzing the thermal
performance of this solar air heater for winter conditions.
1. Thermoeconomic optimization of combined cycle power plants (PhD
Thesis Proposal): Computer simulation of a combined cycle power plant will
be developed. Detailed economic analysis for the plant will be conducted.
Different scenarios will be considered for optimum power plant design.
2. Potential for space heating using solar energy in Cyprus (MS Thesis
Proposal): Although Cyprus is one of the leading countries in solar water
heating, solar air heating has not been put in use. The aim is to investigate
the potential for space heating using solar energy for the residential sector.
Assoc.Prof.Dr. 3. Design and testing of an evaporative cooler for warm humid countries
FUAT (MS Thesis Proposal): Evaporative coolers work efficiently in hot and dry
EGELĠOĞLU climates. When relative humidity increases performance of an evaporative
cooler decreases. In this study various desiccants will be used to dry the
incoming air stream prior wetting in order to improve the efficiency of the
cooler.
4. Experimentally investigating low concentrating photovoltaic cells (MS
Thesis Proposal): The performance of concentrating PV cells will be
investigated. The aim is to increase the output. Solar cells efficiency
decrease as temperature increases. Various cooling techniques will be
applied in order to increase the efficiency of the cells.
1. Experimental investigation of vortex shedding behind Normal Flat
plates (M.Sc Thesis Proposal): In This Thesis Proposal normal flat plates
will be tested with different gap ratios in wind tunnel. Vortex shedding will
investigated by using hot wire anemometry and analyzed with
computational techniques.
2. Experimental investigation and development of drag reducing spoilers
for passenger cars (M.Sc Thesis Proposal): In this Thesis Proposal small
scale models of different types of spoilers will be tested in wind tunnel.
Effect of lift and down force will be investigated.
Assist.Prof.Dr.
Hasan 3. Computerizing and improving the pump test equipment of Hydraulic
HACIġEVKI Laboratory (M.Sc Thesis Proposal): The Thesis Proposal involves
substituting electronic sensors and measuring devices on existing hydraulic
laboratory equipments and converting them into fully electronic and
software controlled system.
4. Improving efficiency of solar power assisted car by utilizing
sophisticated cells and drive trains (M.Sc Thesis Proposal): This Thesis
Proposal is mainly concentrated on developing and improving the present
solar car Thesis Proposal. High efficient batteries and drive systems will be
adopted and tested.
1. Experimental Investigation and Optimization of High-Speed Deep Drilling of Hard-
to-Cut Materials (PhD Thesis Proposal). High-speed deep drilling of hard steels,
CFRCs, Ti alloys, and Ni alloys finds broad based applications in manufacturing domain.
The biggest challenge is to drill deep ([L/D ratio in excess of 10). Following objectives
are desired: (1)Work out the drilling conditions that can ensure the maximization of L/D
ratio. (2) Investigate for the optimal drilling parameters that can lead to the maximum
possible life of the twist drill for any given drilling condition. (3) Find out the
combination of the parameters that can generate the holes of best possible quality. (4)
Work out the combination of the parameters that can provide increased production rate
without compromising the first 3 objectives. (5) Find out the trade-off among these four
conflicting objectives and optimize the process. (6) Utilize AI based tool to automate the
accomplishment of the objective number 5. The project will be accomplished in following
four stages: (1) Optimizing Drill Geometry; (2) Influence of Drill Coating and Workpiece
Material Condition; (3) Optimizing Coolant and Cutting Parameters; (4) Expert System
for Optimizing Parameters and Predicting Performance Measures. The outcomes will
significantly contribute towards improvement in productivity and reduction in cost of
manufacturing processes.
Assist.Prof.Dr.
Asif IQBAL
2. Investigating the milling and drilling of CFRC/Titanium stacks using innovative
coated carbide tools (PhD Thesis Proposal). The layered composite structures with
hybrid combination of CFRP and TiAl6V4 combine advantageous properties for
aerospace applications. Milling/Drilling of such materials is a challenging task because of
differential machining properties. Machining of multi-material stacks has problems like
chip disposal, change in dynamic cutting forces, tool temperature and tool wear. The main
focus will be laid to development of ideal cutting tools. The tungsten carbide mills and
drills, coated with: (1) tripple coatings [e.g. combination of conventional ceramic coatings
like TiN, CrN, TiAlN]; (2) BAM – Boron Aluminum Magnesium, mostly in form of
(AlMgB14); and (3) DLC (Diamond Like Carbon) will be utilized for the said purpose.
After experimentally establishing the viability of each coating for machining CFRC/Ti
stacks, the research will then be focussed on determing the ideal tool geometry and
relevant cutting parameters for each qualified coating, in order to ensure best workpiece
integrity, long tool life, and high productivity. Experimentation will also be performed
under dry conditions as well as with MQL for comparative analysis. Selected parameters
will be used as basis for innovative modeling. SEM/EDS will be used to establish tool
damage modes, holes quality and delamination cracks development etc.
3. Intelligent Grouping of Machines in a Cellular Manufacturing System (CMS) for
Minimizing Parts Movement Cost (MSc Thesis Proposal). Most of the discrete part
manufacturing companies adopt job-shop environment for manufacturing of variety of
parts. This setup, though, guarantees maximum flexibility, but on the other hand, is prune
to lots of delays, wastes, and unwanted costs. CMS offers solution to this problem by
grouping the machines in cells according to similarities of parts to be processed. The
design of CMS is seldom ideal and needs refinement/improvement for minimization of
extra costs (most noticeable the parts movement costs between and within the cells). A
fuzzy ANN model will be used for determining the ideal grouping of the machines for any
given industrial situation for minimizing the total parts movement cost. The parameters
considered would be types of parts to be processed; annual demand of these parts; process
routing (on different machines available in the job shop) and unit movement cost of parts
within the shop.
4. Statistical modeling the trade-off between strength and ductility of plain carbon
steels based on cooling rate and carbon content (MSc Thesis Proposal). Strength
(yield and ultimate), hardness, and ductility are the most vital and concerning properties of
engineering materials for mechanical design engineers and manufacturing engineers.
Hardness and strength are directly related to each other and do not portray a conflicting
situation. On the other hand, strength and ductility often get into a compromising situation
for most of the metallic materials. In case of steel, both properties are dependent upon
cooling rate and carbon content in the composition. The focus of this research work is to
have DoE based quantification of tensile strength (yield and ultimate) and ductility (%EL
and %AR) in terms of cooling rate and carbon content for unalloyed plain carbon steels.
ANOVA will be carried to determine significance of effects of cooling rate and carbon
content, along with mutual interaction, on the two properties. Regression will lead to
formulation of these effects and interactions in form of empirical models. Finally, MDM
technique will be used to work out the trade-off between strength and ductility.
5. Fuzzy modeling the creep-fatigue behavior of AISI 4340 for high temperature
applications (MSc Thesis Proposal). In the case of high-temperature, dynamically
loaded structures (e.g. steam turbine, cutting tools, etc) the effect of fatigue and fatigue-
creep in determining the service life is very significant. It becomes utmost important to
predict the crack size, crack growth, and remnant life of the structure, in order to avoid
catastrophic failure and save cost. Estimating the servicable life in the aforementioned
case is highly complicated because of simultaneous involvement of several engineering
domains. In this work, the focus will be laid on a non-analytical approach for predicting
crack growth and remnant life of the structure. Data will be generated by performing
series of experiments on quantifying the effects of variation in magnitude and frequency
of loading, temperature, and surface integrity on crack size/growth and serviceable life.
The data will be used to develop a fuzzy rule-based system and the predictions will be
obtained by max-min fuzzy rules aggregation strategy. The prediction results will be
validated by a new set of experiments.
