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.