http://www.teslacoildesign.com/

Control Strategy in a Centrifugal Separation Process

A new concept for separating yeast from beer has been developed at Alfa Laval in Tumba. The yeast is now continuously fed out from the separator instead of discharged when too much yeast have collected in the separator. The concept makes it possible to save beer which otherwise would have been wasted at discharges. For the concept to be profitable, the density of out yeast must be high enough even though the inlet density is steadily declining, and at the same time have good separation efficiency.

In this study a control strategy has been developed for this high speed centrifugal separation process. Through experimental studies a mathematical model of the separation process could be made. This model was then used for a MPC-controller where the density was controlled by controlling the flows of the process. An implementation of the control strategy was carried out in the process laboratory in Tumba.

The separation was assumed to be good as long as the mass inow was relatively low and the pressure levels were steady. With the MPC-controller it was possible to maintain the density over the set limit in laboratory experiments. It is also shown that a multivariable controller has benefits compared to a single variable controller. Controlling the separation efficiency is deemed possible and is the next step.
Source: KTH
Author: Svensson, Anders

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http://www.diva-portal.org/smash/get/diva2:570121/FULLTEXT01

 

 

A Home Automation System Using Hardware Design Concepts

Today, safety and security is just a click of the appropriate technology away, and with such advancements happening, the security of one’s home must also not be left behind. This project is an example of the use of digital systems design to accomplish that goal, where the security and comfort of a home is the issue at hand.

This device has been modeled such that it takes care of home intrusion detection and avoidance, while it also controls other home environment factors such as temperature and smoke detection. A sequential pattern of controlling the front door, rear door, windows, fire alarm and temperature is followed in a priority order. The solution uses the hardware design system concepts of a state machine to design a Mealy system that is simulated in VHDL using Cadence.

The expected output is achieved in the waveforms of the system, which is in agreement with the theoretical results expected and has realized the objective of controlling the home system.
Source: ASU
Author: Sirisha Vasala

to download

https://technology.asu.edu/files/documents/tradeshow/Dec03/VasalaSirisha.pdf

 

For more academic projects please feel free to contact
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First-ever Manned Electric ‘Multicopter’ Takes Off

 German aircraft company e-volo has accomplished what it claims is the world’s first manned flight of an electric-powered “multi-copter”.

Multicopter is an electric, vertically starting, human carrying transportation device that employs 16 propellers mounted on a rigid frame, allowing it to take off and land like a helicopter. The propellers create the full lift, and are also responsible for balancing the device on all three axes by independent speed control of the motors. Unlike the rotor of a helicopter, the propellers don’t have any pitch control and therefore no wear.

The automatic attitude and directional control are taken care of by onboard computers which control the engines with the precise rotation speed necessary to fly this tri-axis device. A simple joystick allows the pilot to control the aircraft via a fly-by-wire system. E-volo says the flight of the multicopter is only limited by battery strength.

The flight took place at an airstrip in southwest Germany, and lasted one and a half minutes. Thomas Senkel, a physicist and designer/builder of the multicopter, piloted the aircraft from a center-mounted seat, using a handheld wireless control unit. The flight consisted mainly of maneuvering the multicopter around within a fairly small area – no sense in getting cocky.

Particle Filtering for Track Before Detect Applications (Electrical Project)

Integrated tracking and detection, based on unthresholded measurements, also referred to as track before detect (TBD) is a hard nonlinear and non-Gaussian dynamical estimation and detection problem. However, it is a technique that enables the user to track and detect targets that would be extremely hard to track and detect, if possible at all with ”classical” methods. TBD enables us to be better able to detect and track weak, stealthy or dim targets in noise and clutter and particles filter have shown to be very useful in the implementation of TBD algorithms.

This project has investigated the use of particle filters on radar measurements, in a TBD approach.

The work has been divided into two major problems, a time efficient implementation and new functional features, as estimating the radar cross section (RCS) and the extension of the target. The later is of great importance when the resolution of the radar is such, that specific features of the target can be distinguished. Results will be illustrated by means of realistic examples.
Source: Linköping University
Author: Torstensson, Johan

Virtual Instrumentation: Introduction of Virtual (Electrical Project)

The Large Hadron Collider (LHC) is the next large particle accelerator developed at CERN, constructed to enable studies of particles. The acceleration of the particles is carried out using magnets operating at about 1.9 K, a temperature achieved by regulating flow of superfluid helium. For economical reasons, control of the helium flow is based on feedback of virtual flow meter (VFT) estimates instead of real instrumentation.

The main purpose of this work is to develop a virtual flow meter with the possibility to estimate the flow by means of two different flow estimation methods; the Samson method that has previously been tested for the LHC, and the Sereg-Schlumberger method that has never before been implemented in this environment.

The virtual flow meters are implemented on PLCs using temperature and pressure measurements as input data, and a tool for generating the virtual flow meters and connect them to the appropriate physical instrumentation has also been developed.

The flow through a valve depends, among others, on some pressure and temperature dependent physical properties that are to be estimated with high accuracy. In this project, this is done by bi linear interpolation in two dimensional tables containing physical data, an approach that turned out to be more accurate than the previously used method with polynomial interpolation.

The flow measurement methods have been compared. Since they both derive from empirical studies rather than physical relations it is quite futile to find theoretical correspondencies, but the simulations of the mass flows can be compared. For low pressures, the results are fairly equal but they differ more for higher pressures. The methods have not been validated against true flow rates since there were no real measurements available before the end of this project.
Source: Linköping University
Author: Ödlund, Erika

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CFD Analyses Of The Gas Flow Inside The Vessel Of A Hot Isostatic Press (Mechanical Project)

       Hot isostatic pressing (HIP) is a thermal treatment method that is used to consolidate, densify or bond components and materials. Argon gas is commonly used as the pressure medium and is isostatically applied to the material with an excess pressure of 500-2000 bar and a temperature of 500-2200oC. With HIP treatment being a well-established technology for the last decades, one is now striving to obtain an increased understanding of local details in the internal gas flow and heat flux inside the HIP apparatus.

The main objective of this work is to assess the potential of using computational fluid dynamics (CFD) a sa reliable tool for future HIP development. Two simulations are being performed of which the first one is a steady-state analysis of a phase in the HIP-cycle called sustained state. The second simulation is a transient analysis, aiming to describe the cooling phase in the HIP-cycle. The most suitable modeling approaches are determined through testing and evaluation of methods, models, discretization schemes and other solver parameters.

To validate the sustained state simulation, the solution is compared to measurements of operating pressure, heat dissipation rate out through the HIP vessel and local temperature by the vessel wall. However, no validation of the cooling simulations has been conducted. A sensitivity analysis was also performed, from which it could be established that a mesh refinement of strong temperature gradients resulted in an increase of wall heat dissipation rate by 1.8%. Both of the simulation models have shown to yield satisfactory solutions that are consistent with the reality. With the achieved results, CFD has now been introduced into the HIP field and the presented modeling methods may serve as guidelines for future simulations.
Source: KTH
Author: Åkerberg, Andreas

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An Analysis of Success and Failure Factors for ERP Systems in Engineering and Construction Firms (Civil Project)

Even though the use of ERP systems is growing and becoming more popular, these systems are still somewhat unfamiliar in the construction industry. Many engineering and construction firms know how beneficial ERP systems are, but they still hesitate to adopt these systems due to their high cost and risk.

Without a doubt, a successful ERP implementation is an essential for the benefits from such systems, so this issue is always considered top priority in the ERP related research area. It is obvious that several important factors must be considered for successful implementation, but most engineering and construction firms have no idea what factors should be considered most heavily. Therefore, the main goal of this research is to help these firms better understand the critical factors that need to be considered to ensure the success of ERP systems.

This research formulated the conceptual ERP success model based on strong background theories and knowledge gained from several industry practitioners. The survey instrument was designed based on the conceptual ERP success model, and was tested before conducting the main survey. The ERP success model and its variables were finally fixed after completing a series of data analyses with the main survey. Since there have been few studies attempting to validate empirically the factors affecting both ERP implementation and user adoption, this research focused on identifying the factors for the ERP success from both implementation project and user adoption perspectives.

Then, identified factors were examined to verify their relationships with success indicators associated with the redefined ERP success. Furthermore, the research suggested recommendations for the ERP success showing how to approach ERP implementation to avoid failure and what we should do considering the significance of each factor to a given dependent variable based on the findings of the study. These recommendations can provide helpful information to engineering and construction firms when they consider implementing or upgrading their ERP systems. This information should help companies reduce tremendous ERP implementation risks so that companies can have more chances to improve their business value with the success of EPR systems.
Source: University of Maryland
Author: Chung, BooYoung

Download Project

The main objective of Matrimonial Web Application is to provide Grooms and Brides with excellent matchmaking experience by exploring the opportunities and resources to meet true potential partner. Keeping our objective in mind, we have created a world renowned online matchmaking services that will touch the souls of millions of people all over the globe.

The purposes of the Matrimonial Web Application are:

• The main purpose of this application is to facilitate matchmaking business by applying the information in the field.
• It helps the user by providing profiles of perspective “Bride” or “Groom” and other information regarding them online.
• User can get information regarding their dream life partner at his/her home at his/her convenience.
• This application also provides a search utility which helps those users who have a certain criteria of qualities in mind to make online matrimonial easier.
• Since internet is a pivot for modern business, our project which is based on internet paves a path for modernization in trade.

Matrimonial Web Application will allow a new user to register and after successfully registration user can get email confirmation, after completing registration users profile will be visible to other users.

Download Matrimonial Web Application Project

WaitLess Bus Tracking Device (Electronics Project)

The WaitLess bus tracking device is a standalone system designed to display the real-time location(s) of the buses on Georgia Tech’s campus. The system will consist of a solar panel and backup battery, wireless module, PSoC microprocessor, and a LED embedded map of the Georgia Tech bus transportation routes.

Assembly of these components will enable the tracking device to connect to the internet to obtain GPS data of the bus locations, which it will depict by activating LEDs in the approximate geographic positions of the buses on the route map. In addition, the device will be portable and sustainable; it will not require an external power source, which will eliminate long-term energy costs.

NextBus, the tracking company that Georgia Tech employs to retain the GPS location of the campus buses, currently provides a $3600 scrolling LED panel installed at three of the bus stops on campus. The display panel provides a rough text-based time estimate of the next arrival of a bus at the particular stop. In a recent survey, conducted by the design team, 75% of the survey correspondents attributed that waiting for the bus has often caused them to be late to a destination. Furthermore, 96% affirmed that if they had an easy way to see each bus’s actual location, in real-time, they could make a more accurate, informed decision of whether or not to wait.

The WaitLess bus tracking device will serve as a viable alternative notification system that will be more effective than the LED scrolling panel but for a quarter of the cost. A system prototype can be designed and assembled for approximately $6,724.10, when accounting for labor and component costs. If, subsequently, 40 of these systems were produced to be installed at each of the bus stops on the Georgia Tech campus; each device could be individually sold for $933 dollars, resulting in a 33% profit margin.
Source: Georgia Tech
Author: Matthew Brooks |Chris Chidi | Josh Mauldin | Daniel Nadeau

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Capacity of Frozen Soil for Shallow Tunnel Pre-Support Underneath a Building Founded on Wooden Piles (Civil Project)

The ever-increasing density of urban environments poses new challenges to tunneling for transit projects. Tunneling methods are called for that meet these challenges whilt e minimizing the impact on every day routines. With only a few exceptions, urban tunneling is confronted with soft ground conditions resulting from two basic facts.

Historically, dwellings were established near rivers for reasons of logistics situating cities on alluvial deposits. In addition, tunnel alignments must be kept at shallow depths to optimize access and passenger circulation. This study analyzes implementation of a binocular tunnel underneath a historic building at low cover using ground freezing for tunnel pre-support and building underpinning. The shallow depth required tunneling through a large number of timber piles arranged in groups that serve as foundations for the steel frame, brick and masonry building.

Tunneling was carried out using a sequenced excavation with shotcrete for tunnel support, commonly referred to as the New Austrian Tunneling Method (NATM). During the tunneling the building remained operational for its mainly commercial purpose. The analysis focuses on the performance of the building foundations, frozen soil and tunnel opening. Observations from the construction-monitoring program are utilized in the development of a numerical model to study the performance of the support system consisting of timber piles, frozen soil and tunnel lining.

Adfreeze strength that develops between the frozen soil and wooden piles provides a significant increase in shear capacity of the pile-frozen soil interface as compared with unfrozen conditions. The analyses suggest that the interconnect between frozen soil and pile is of such structural capacity as to allow for a substantial reduction of frozen soil thickness when compared to the one implemented on this project. This reduction provides for economies in freezing and in mitigation measures such as compensation systems for initial building heave and subsequent settlement due to freeze consolidation. It is further suggested that ground freezing in combination with NATM tunneling offers a methodical concept for tunnel construction through vertical foundation elements. A thorough testing program for adfreeze strength must support its implementation, since adfreeze strength is the primary contribution to the capacity of the hybrid tunnel-frozen ground-pile support system.
Source: University of Maryland
Author: Gall, Vojtech

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Development of a Simulation and Optimization Tool for Heat Exchanger Design (Mechanical Project)

Heat exchangers have been used extensively and play an important role in the capital cost, energy efficiency and physical size of refrigeration and air conditioning systems.

In this project, a simulation and optimization tool to improve effectiveness and efficiency in design, rating, and analysis of air to refrigerant heat exchangers including conventional finned tube coils and emerging microchannel heat exchangers, Coil Designer, is developed and investigated using a general-purpose modeling concept and user-friendly interface. It is applicable to design of condensers, evaporators, and heating and cooling coils under any operating conditions.

A network viewpoint was adopted to establish the general-purpose model and allow for analysis of arbitrary tube circuitry and mal-distribution of fluid flow inside the tubes. Comprehensive evaluation of solutions to the highly nonlinear system of equations in the local thermal/hydraulic performance within the tube network was conducted and a new solution method to successively approximate the physics of heat and fluid flow was developed to enhance the solution convergence capability. A segment-by-segment approach within each tube was implemented, to account for two-dimensional non-uniformity of air distribution across the exchanger, and heterogeneous refrigerant flow patterns through a tube.

A further sub-dividable-segment model was created in order to address the significant change of properties and heat transfer coefficients in the single-phase and two-phase regime when a segment experiences flow regime change. The effectiveness-NTU method for cross-flow configuration was used also for combined heat and mass transfer problem under dehumidification, by defining equivalent thermal resistance and heat capacity. Object-oriented programming techniques were applied in developing Coil Designer to facilitate flexible and customizable design platform and building graphic user-friendly interface. Coupled heat exchangers with multiple fluids inside different subsets of tubes can be modeled and analyzed simultaneously.

A wide variety of working fluids and correlations of heat transfer and pressure drop are available at the user’s choice. The tabular and graphic representation of performance simulation results provides convenience in comprehensive and detailed parametric analysis. The model prediction with Coil Designer was verified against experimentally determined data collected from a number of sources. The simulation tool was shown to be able to predict the heat transfer rate for a variety of coils with good accuracy.

Parametric studies were conducted to confirm the capability of the program in exploring all aspects of heat exchanger performance under a wide variation of design and operating conditions. A genetic algorithm is introduced and integrated with the simulation tool for single and multi-objective optimization design of heat exchanger to accomplish the following goals quickly and accurately: achieve optimum circuitry selection, minimize volume, minimize the amount of material utilized in the coil and thus minimize overall cost of the coil while achieving the best possible performance.
Source: University of Maryland
Author: Jiang, Haobo

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Electronics Info: Nanoparticle-Based Sensors Used in Cancer DetectionNew Technology allows LCDs to recycle energy Nanoprocessors: Configurable Hardware Accelerators for Embedded Systems (Electronics Project)

Abstract

Today’s consumer market is driven by technology innovations. Many technologies that were not available a few years ago are quickly being adopted into common use. Equipment for these services requires microprocessors inside and can be regarded as embedded systems.

Embedded systems are computer systems that are well hidden inside devices. At the time of design, much is known about the operating conditions and requirements. Embedded systems are designed to meet these requirements at a minimal cost. To improve efficiency and throughput, real-time operating systems (RTOSs) can be used. However, RTOSs can create overhead in systems.

Using hardware accelerators can significantly reduce overhead. In this work, we survey the major overhead in embedded systems and identify and analyze some of them in details. We then purpose and discuss nanoprocessors, as configurable hardware accelerators, to lower this system overhead. Our simulation result shows that nanoprocessors can improve system performance at a nominal cost.
Source: University of Maryland
Author: Zong, Lei

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Intelligent Energy Saving System full project report

Intelligent Energy Saving System 
 Intelligent Energy Saving System can be used in places like where lighting is very important. The libraries will be well illuminated with many lamps. When people are not present at a reading place the lighting can be made OFF and when they are present, the lighting made ON. All these can be done through by Dimming circuit and PIR sensor. If a person entering to the monitored area, the PIR sensors activates and sense the person, gives to the micro controller. The Infrared energy emitted from the living body is focused by a Fresnel lens segment. Then only the PIR sensor activates. After sensing the person   LDR checks the light intensity of the monitored area, whether it is bright or dark. Depending on the LDR output, the lamp may be ON / OFF by using Dimmer circuit.

             By using this system we can adjust the speed of Fan according to the room temperature measured by Thermostat, which is connected to the micro controller.

            To display the room temperature of PIR mode operation we are using the LCD display. 
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Electronics mini projects 2012

1. Telephone Operated Machine 
2. Locker Security Monitor 
3. DTMF BASED ROBOTIC CONTROL 
4. GPS Based train or bus or Aircraft Collision Avoidance 
5. ETHERNET BASED INDUSTRIAL MONITORING AND CONTROL SYSTEM 
6. WIRELESS SECURITY SYSTEM FOR APARTMENTS 
7. Accident identification with auto dialer 
8. Power Monitoring System for Motors 
9. Data Logger With Graphics Display 
10. Remote Mouse Controlled Automation 
11. Oscilloscope using Graphics LCD 
12. CDMA Based Mobile Communication 
13. Car security system 
14. Implementation of CAN communication between 8051 microcontrollers 
15. HOME AUTOMATION USING CAN 
16. INTELLECTUAL SPEED CONTROL USING PROXIMITY SYSTEM & RF 
17. TRACKING AND BREAKING SYSTEM FOR VEHICLES 
18. Intelligent Traffic Light Switching for Emergency 
19. Industrial monitor. 
20. RF Card Based Security Accessing. 
21. Scrolling message Display 
22. Home Automation System 
23. Centralized wireless monitoring in textile industries 
24. Glass Breakage Detector 
25. PC- printer communication through power line 
26. Motor Speed control using IR Sensor 
27. Quality Control System 
28. Tension control system 
29. Control Design for Vehicle Speed With Multilevel Using Wireless Communication 
Technology 
30. Portable Recording System for Monitoring Vehicle Speeds 
31. ETHERNET BASED PATIENT MONITORING SYSTEM 
32. DC Motor Speed controlled using Remote 
33. PC interfaced Data Acquisitions System 
34. Prepaid Card for Call Taxi 
35. Cryptography using Microcontroller 
36. Temperature Monitoring using Thremistor 
37. TOUCH SCREEN CONTROLLER BASED DRIVING SYSTEM 
38. Stepper Motor controlled By Remote Control 
39. Personal Safety And Tracking Through GPS 
40. TRANSFORMER MONITORING 
41. Digital IC Tester 
42. Embedded lift controller 
43. Machine control & fault recognition through telephone 
44. CAN BASED DEVICE CONTROL USING GSM 
45. Congestion Control In ATM Networks Using ASIC in VLSI 
46. Design of USB host 
47. Monitoring System for UPS. 
48. ZIGBEE BASED HEART RATE MONITORING 
49. INTELLIGENT LIBRARY MANAGEMENT SYSTEM 
50. Remote Dish Positioning System 
51. Telephone Switching 
52. Capacitance Meter 
53. OUTDOOR LOCATION TRACKING USING GPS AND RFID 
54. Programmable Serial Hub 
55. Attendance recorder 
56. Code Modulation Based Encryption and Decryption Technique for Secure 
Communication in Wireless 
57. SURVEILLANCE SYSTEM FOR RAILWAYS 
58. On-load Tap-change for power transformer 
59. Phone Book Dialer 
60. Air Leakage Detection Based on Pressure Sensor 
61. VOICE BASED GUIDANCE SYSTEM FOR VISUALLY IMPAIRED USING GPS 
62. Power factor monitor & control 
63. PROCURE SYSTEM FOR VEHICLE USING CAN PROTOCOL 
64. TCP/IP BASED STUDENT ATTENDANCE LOGGING SYSTEM 
65. SECURE SYSTEM FOR DOMESTIC PURPOSE 
66. CARGO MANAGEMENT SYSTEM 
67. Temperature Data Logger 
68. SMS Enabled Industrial Networking 
69. Digital Anemometer 
70. Mobile car Security System 
71. ETHERNET BASED PATIENT MONITORING SYSTEM 
72. Electricity theft Identification using RF Modems 
73. Security Integrated System Based On WAP For Remote Monitoring and Control of 
Industrial Process 
74. Railway Gate Management using GPS and GSM 
75. Priority for Emergency Vehicles in Traffic Signals 
76. WIRELESS SENSORY BASED ENERGY CONSERVATION SYSTEM 
77. Programmable Hopper Controller 
78. TCP/IP BASED ENERGY MONITORING SYSTEM FOR ELECTRICITY BOARD 
79. Wireless Temperature Monitoring and Controlling Using Embedded System 
80. GPS GSM based patient monitoring 
81. Security System for Remote Access using Telephone Line 
82. I2C EPROM Programmers 
83. Multi-channel Temperature Monitor & controller 
84. RF Based Embedded Virtual Highway Patrol 
85. Mail Transfer System 
86. Lift control System 
87. Tyre pressure monitoring system 
88. WIRELESS SECURE POLLING SYSTEM USING GPRS 
89. Accident identification system 
90. Pc to Microcontroller communication Through USART. 
91. Wireless Water Level Controller 
92. Traffic Priority for Ambulance 
93. Telephone interface security system 
94. VOICE BASED AUTO RECEPTIONIST FOR EDUCATIONAL INSTITUTION USING DTMF 
95. Inbuilt protector for motors 
96. Device Switching through Card System. 
97. Irrigation control system 
98. Motion Recorder & Play Back 
99. Time Annunciation 
100. Data feeding system through card

IEEE SEMINAR TOPICS 2012

1.    Design of integrated meter reading system based on power-line communication 

2.    Non intrusive Load Monitoring and Diagnostics in Power Systems 

3.     A survey of communication network paradigms for substation automation 

4.     Automatic repeat protocol for distribution automation system through power line communication 

5.     Street lighting control based on Lon Works power line communication 

6.     Design of integrated meter reading system based on power-line communication 

7.     An Integrated Architecture for Demand response Communications & Control 

8.     Automatic Power Meter Reading System using GSM Network 

9.     Software Agents Based Home Automation An Intelligent Electrical Billing & Maintenance 

10.   Get on Digital Bus to Substation Automation

11.   Unified Architecture for Large Scale Attested Metering 

12.   GSM mobile system to monitor brain function using a near-infrared light sensor 

13.   A gain scheduling strategy for the control and estimation of a remote robot via Internet 

14.   Smart companion [contextual communication services] 

15.   Open architecture for contactless smartcard-based portable electronic payment systems 

16.   Optimized Autonomous Space In-situ Sensor-Web for Volcano Monitoring 

17.   A mobile web grid based physiological signal monitoring system 

18.   Bluetooth/GMRS Car Security System with a Randomly Located Movement Detect Device 

19.   Bluetooth Based Wireless Remote Device Controlling and Data Acquisition 

20.   Bluetooth Remote Control 

21.   Application of Bluetooth technology in ambulatory wireless medical monitoring 

22.   A Remotely Controlled Bluetooth Enabled Environment 

23.   Coupling between Bluetooth modules inside a passenger car 

24.   Remote-controlled home automation system via Bluetooth home network 

25.   Home appliance control system over Bluetooth with a cellular phone 

26.   Usage of Bluetooth TM in wireless sensors for tele-healthcare 

27.   Remote system for patient monitoring using Bluetooth 

28.   Using Bluetooth transceivers in mobile robot

Reference: http://seminarprojects.com/Thread-ieee-electrical-projects#ixzz1tA8uILR0