COE Thesis and Final Year Project (FYP)

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1D numerical hydrodynamic shallow flow model for urban area
(2016-06)
Nor Azlina binti Alias
58 370
3-Axis Gimbal for Car Travel Recording Camera Stabilization
(2020-02)
Luqman Nur Hakeem bin Norhisham
In this century, everyone wants to record their precious moment everywhere especially with their close friends, lover and family. However, the biggest problems in video recordings is the stabilization of the cameras. The purpose of this project is to implement the three-axis gimbal control system for car travel camera stabilization. The stabilization is done by controlling three servos motor driving the yaw, pitch and roll movements of the camera stabilizer’s frame, respectively. In this project will focusing on Digital Motion Processor (DMP), MPU6050 chip as IMU to obtain the angular orientation of each axis.
80 399
A 68HC11-based digital thermometer
(2006)
Siti Daniah Binti Salleh
;
This thesis describes the development of digital thermometer using 68HC11 microcontroller. The development of a microcontroller based product required the development of the software (program) and the hardware (electronic circuit). This project used the 68HC11 analog to digital converter. To measure the temperature, an integrated circuit sensor is used. The sensor chosen is LM35. This device gives an output voltage which is directly proportional to the temperature in Celsius. Seven segment LED display is used to display the temperature. beside hardware application, the software programming using 68HC11 assembly code is also mentioned in this thesis. This thesis also described the process of making Printed Circuit Board for the transducer circuit.
28 302
Acera not composite : the effect on sward
(2020-02)
Tan Ming Fong
The usage of composite materials has grown gradually over the past few decades. It has been used as the sound absorber, radiation shielding medium etc. A typical composite material comprises of a matrix and reinforcing agent. The common reinforcing agent used to manufacture composite materials are manmade fibres, glass, carbon etc. This thesis focuses on the viability of replacing the commonly used reinforcing agent with the so-called domestic waste, areca nuts. In this project, a few properties such as the sound absorptivity, neutron absorptivity and others were tested. Apart from that, this thesis determines the thickness of the composite materials has a significant effect on the properties. The outcomes of all the testing are then presented and discussed.
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Acid Esterification of Fish Oil..
(2019-10)
Muhamad Alif Haikal Bin Ismail
Biodiesel is one of major non-renewable resources that is replacing the production of petroleum due to benefit of our environment. Besides that, it is also contributing one and half of our country’s economy. Biodiesel normally produced from the transesterification process by using oleo chemical sources for instance, vegetable oils and animals oil and fats. The process is enhanced with the aid of a catalyst specially with the presence of strong acid and basic solution such as hydrochloric acid, sulphuric acid, sodium hydroxide, sodium methoxide and potassium hydroxide. This research was conducted to study the effect of catalytic performance of two types of catalyst which is PTSA catalyst and Sulphuric acid in biodiesel production. The main aim of this project is to determine the optimum concentration of PTSA catalyst for esterification of fish oil. Next, to determine the optimum ratio of ethanol to oil ratio for esterification of fish oil. Lastly, to compare the effectiveness of acid esterification of fish oil with PTSA and sulphuric acid. In order to identify the effectiveness of the catalyst, esterification process is carried out in where the catalyst used for conversation of FFA in oleic acid. The result clearly shows that PTSA catalyst get
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Acoustic performance of empty fruit bunch natural fibre in different densities with 14mm thickness
(2020-09)
Muhammad Omar bin Abdul Latip
Oil palm is only second to soybean when it comes to be the source of edible oil. Malaysia is among the primary producers and exporters of palm oil in the world. Oil Palm Empty Fruit Bunch (OPEFB) is the main byproduct among the oil palm biomass with about 18 million tons produced yearly. About 20% of empty fruit bunch can be extracted from a fresh oil palm fruit bunch. Therefore, oil palm wastes pose major threats towards Malaysia in disposing the excess material. Producing materials from OPEFB natural fibers can minimize and recycle the waste to our environment. This paper reports the acoustic performance of OPEFB in different densities of 120, 140, 160 and 180 kg/m3 with constant thickness of 14 mm. Two type of fibres were studied which are Short Strand Fibre (SSF) and Fined Fibre (FF) and compared. Total of 8 fibreboards (4 SSF and 4 FF) were produced and tested by using Impedance Tube Method (ITM). Two targeted density, which were SSF samples with 160 and 180 kg/m3, able to achieve SAC of 0.88 in frequency range of 4500 – 5000 Hz. The FF samples with density of 160 and 180 kg/m3 were able to achieve unity (SAC > 0.97) at wider frequency range of 4000 – 5000 Hz. The acoustic performance of FF can perform better when compared with SSF at all frequency range.
52 110
Acoustic performance of empty fruit bunch natural fibres in different thickness with 180 kg / m3 density
(2020-09)
Khairin Fadzlin binti Hasbullah
To extend the uses of natural fibres obtained from plants and trees has attracted many researchers. Natural fibres are low cost, low density, high specific properties, non-abrasive, and biodegradable. Empty Fruit Bunch (EFB) can be directly derived from natural resources; it is inexpensive and also has advantages due to its, organic nature, low cost, and easy viabilities. This research has been carried out to study the acoustic performance of EFB, which has a high potential to be used for sound insulation material. The effect of various types of EFB (short strand and fined) was investigated with 180 kg/ density in four different thicknesses (12 mm, 14 mm, 16 mm, and 18 mm). Samples were carried out using the Impedance Tube Method (ITM) consistent with international standard, ASTM E1050-98 used for measuring the sound absorbing coefficients (SAC). Results show that the SAC value increases with an increase in thickness for all samples. Maximum absorption for short strand fibre samples obtained by thickness of 14 mm with SAC value of 0.97 at 4604 Hz while for fined fibre; the maximum absorption was also obtained by thickness of 14 mm with SAC value of 0.93 at 3842 Hz. The result indicates that short strand fibre absorbed more sound energy at high frequency region compared to fined fibre. Overall comparison, the optimal sound absorption coefficient was obtained from short strand fibre which absorbed better sound energy with a wider frequency range. In conclusion, this research has successfully defined that EFB is viable to be used as raw fibre for acoustic absorber.
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Acoustic performance of natural fibres of oil palm frond ( 30%) and acasia
(2020-02)
Logan A / l Balloo
Noise is often viewed as unwanted or excess sound which can be harmful to the human health. In order to filter all the unwanted noise, sound absorbers are invented. Sound absorbers are usually made up of sound absorbing materials which retains the excess sound by converting the sound energy into heat energy and are released into the surrounding. However, most of the sound absorbers are made up of synthetic fibres which are proven to be hazardous to human health. This phenomenon influenced the motive to carry out this project which is the drive to fabricate sound absorbing materials which consists of natural fibres of Oil Palm Frond and Acacia Mangium. This project has investigate the density effect on the morphology and the sound absorbing properties of low density fibreboards in thickness of 16mm. The low density fibreboards are developed by implementing the fabrication process which includes several steps such as chipping, refining and many more. As for the microstructure and the acoustic properties, they are determined when all the samples undergo Scanning Electron Microscope (SEM) testing and Impedance Tube (BNK Tube) method respectively. From the results, it can be viewed that from 0 to 2500Hz, the Sound Absorption Coefficient (SAC) values in average increases as the density increases. From 2500Hz to 4500Hz, the SAC values in average are seen to be increasing as the density decreases. Since the densities are quite close to each other, the SAC values does not fluctuate vigorously when compared to each one and another. The SAC values of all the samples can also be seen to be reaching unity from 4500Hz to 6400Hz (0.95~0.99). In terms of morphology, it can be seen that when the density increases, the content of parenchyma increases which is one of the key components in retaining sound waves. The results shows and validates that the natural fibres of Oil Palm Frond and Acacia Mangium is a good mixture and can be used as an alternative material to be used in sound absorbers
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Acoustic performance of natural fibres of oil palm frond ( 30%) and acasia magium ( 70%) with thickness of 18mm
(2020-02)
Muhammad Firdaus Bin Che Rahimi
Human healthcare is one of the important aspect that need to be pondered upon developing a new technology and invention in this globalisation era. However, a growth development that has occurred in the urban area especially, is believed to be one of the factor that affect the human healthcare since it increase the noise exposure to the living environment. To curb this issue, developing the sound absorption panel that is made from natural fibres would be the solution to this problem. Hence, this thesis would discuss on the acoustic performance of the sound absorbing panel made by combining two natural fibres, which are Oil palm frond (30%) and Acacia mangium (70%) at four different targeted densities (110 kg/m3, 120 kg/m3, 130 kg/m3, and 140 kg/m3) with constant thickness of 18 mm. The sound panel was fabricated through certain processes that starts with chipping and ends with cooling down process. The fabrication process involves Phenol Formadihalt (PF) glue that acts as a binder to the natural fibres and was mixed by using mechanical blending machine. Once mixed, it was formed in a 30 cm × 30 cm mold before being pressed by a hotpressed machine at 195 oC for 8 minutes. The fabrication process is an important phase in determining the acoustic performance of the sound absorbing panel. The acoustic performance was analyzed based on the Sound Absorption Coefficient (SAC) that was measured at frequency ranging from 0 Hz until 6400 Hz by using Impedance Tube method. This analysis was then supported by Scanning Electron Microscope (SEM) photographs which intended to obtain the morphology of the sound panel structure. SEM photographs were generated by using JEOL Scanning Electron Microscope JSM-6010PLUS/LV. From the analysis, it was found that all samples manage to exhibit minimum SAC value of 0.8 at frequency above 2000 Hz. This shows that the sound absorbing panel has a good acoustic performance and can be the best alternative to the synthetic fibre. Moreover, sound panel with density of 110 kg/m3 and 120 kg/m3 has achieved a unity SAC value of 1.0 at mid-range frequency which are 3512 Hz and 2512 Hz respectively. This indicates that the combination of natural fibres between Oil palm frond (30%) and Acacia mangium (70%) can be a good prospect as sound absorbing material as it can fully absorbed the sound waves that propagate through it. For the morphological analysis based on SEM photographs, it shows that the presence of pores is the reason for the combined natural fibres to exhibit good sound absorption. This relates with factor of porosity. When the presence of pores in a natural fibres with less content of natural fibres itself per unit area of the material, the more the material can absorb the sound waves that coming through it. Hence, this explain on why the sample with lower density can exhibit better sound absorption when compared to the sample with higher density.
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Acoustic performance of natural fibries of oil palm
(2020-02)
Navin Balakrishnan
In a world full of pollution, sound pollution is a pressing matter that’s vaguely acknowledged. Sound absorbers exist to battle sound pollution, although it can’t completely eliminate sound pollution, it helps reduce sound pollution by some margin. However, the current existing sound absorbers are made of synthetic materials that are harmful to the nature, thus natural fibers are being used to replace the use of synthetic materials. This research project is about the study of acoustic performance of Natural Fibers of Oil Palm Frond (40%) and Acacia Mangium (60%) with thickness of 18mm in different densities. The densities that were chosen for this research project are 100 kg/m³, 120 kg/m³, 140 kg/m³ and 160 kg/m³ while the thickness was fixed at 18mm, this was used to fabricate the samples used in this research project. Two tests were conducted for this project, the tests are Sound Absorption Coefficient (SAC) test which was conducted in MPOB research station and Scanning Electron Microscope (SEM) which was done in University Tenaga Nasional. The fabrication of the board was also conducted at MPOB research centre which is located at Bangi Lama. The results obtained from this research show that the fiberboard with density of 120 kg/m³ was considered as the optimum fiberboard as it had achieved overall good absorption coefficient. This sample had achieved a SAC value of 1.0 at a frequency of 2400 Hz till 2800 Hz and then reduced to 0.99 and finally became constant with an SAC of 0.94 at a frequency of 6400 Hz. This sample also had optimum tortuosity and porosity and had a lot of trichrome which helps with sound absorption. The lower densities had overall better Sound Absorption Coefficient than that of the higher densities. From this research project, it’s found that the combination of Acacia Mangium and Oil Palm Frond with lower densities has high potential in sound absorbing and can be used to replace the current existing use of synthetic materials in the future.
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Acoustic resonance and response computation in boxed structures
(2003)
Ng Kok Hiang
;
The acoustical quality of variety of musical instruments and speaker boxes depends on various parameters related to the boxed structures. The present project expects to understand and analysis methods and compute the box response for a required driver. This lead to the objective of the project that is to understand the science of sound propagation and its quality, then bring out a theoretical method of response computation of a boxed structure. The project methodology includes literature review and development of response computation method.
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Active Synchronisation For Renewable Powored
(2020-02)
Abdullah Haziq Amat Yazid
This thesis reports the design and simulation of active synchronisation of renewable powered, inverter-based generation in microgrids using a method called Phase Locked Loop. In recent years, power generation has shifted from traditional fossil fuel power plants, to more modernised microgrid based power, which is basically generation from consumer’s homes. As a result, the trend of power generation then leans towards the use of power electronics equipment such as the inverters. Therefore, this necessitates synchronisation between the consumer’s homes to the grid, and the control system of the inverter must be designed such that the phase estimation carried out is accurate enough for synchronisation. In this thesis, the PLL control scheme - one of the many synchronisation methods - and its variations are designed and simulated, analysed, and critically compared in order to provide for an accurate understanding of how the PLL functions in phase estimation.
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An Adaptive Overcurrent Protection Scheme of Distribution Networks With DG Penetration
(2019-10)
Muhammad Zul Helfi Azri Bin Abd Hadi
Due to the benefits of low pollution and high flexibility, installation of Distributed Generation in power system becomes more popular in recent years. However, despite these advantages, the integration of DG into the distribution system can cause a number of issue depending on the type and placement. The change in the network system may affect the traditional overcurrent protection relays. Thus, adaptive overcurrent protection is necessary to counter the issue and can be implemented by using a microprocessor-based overcurrent relay. In this thesis, a fast recursive discrete Fourier transform (FRDFT) algorithm is introduce into the overcurrent relay to ensure the relay detect accurate fault signal and sends a correct signal to circuit breaker. A radial 5 bus system is developed and used to validate the proposed adaptive scheme. The simulation result proves that the FRDFT algorithm is capable of providing accurate trip time of the circuit breaker.
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An Advance Ozone Concentration Prediction By Implementing Machine Learning Algorithms In Selangor And Kuala Lumpur Malaysia
(2019-10)
Ellysia Jumin
Malaysia is a developing country especially regions in Kuala Lumpur and Selangor. Current generation are indulging the comfort of life from the urbanization. Although it has positive advantageous yet somehow the disadvantageous slowly worsen life on earth through either direct or indirect impact contributing to adverse air quality. High level of tropospheric ozone concentration exceeding prescribed level by the department of environmental is an unfavorable air quality [17]. While ozone formation is a complex chemical reaction affected by many precursors, however in this study few ozone precursors has been identified and supported by past researches. Correlation between ozone and the precursors is based on Pearson Correlation Coefficient. Meteorology data such as wind speed and humidity are highly correlated followed by air quality data like nitrogen oxide, carbon monoxide, nitrogen dioxide and the least correlated Sulphur dioxide with ozone formation. Daytime dataset from 6:00 a.m. – 6:00 p.m. provide better model compared to 24-hour dataset for the best model Boosted Decision Tree Regression. Neural Network Regression with Gaussian Normalizer, Linear Regression and Neural Network with Min-Max Normalizer show over fit model. Among all three station of studies, S2 gives best data for the model development. Best model is successfully identified thus beneficial for any early prevention pertaining community safety in the near future. Further study on technique or by introducing complex input parameters can be applied to improve the model selected.
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Air Quality Monitoring System
(2019-10)
Muhammad Ezzat Bin Kamaruddin
This thesis reports produced portable Air Quality Monitoring System (AQMS). This AQMS measured the air quality of three gases which are Liquefied Petroleum Gas (LPG), Carbon Monoxide (CO), and smoke followed by dust density, humidity, and temperature surrounding. This system also informed the people of current situation of air quality and send the data via Internet of Thing (Iot) called Blynk application using smartphone and also can be access by desktop. The alarm will triggered and warning will be sent once the reading exceed the safe limit range to the users. AQMS important nowadays because air quality such as haze, poisonous gases and others gaseous always spread in the air around the people and can cause the disaster to peoples, animals, plants, and earth. In addition, this AQMS was affordable and easy to carry anywhere and anytime. Different type of gaseous have different value of voltages. Technique used was measurement change of resistance of the system during clean air and present of undesire gases in air and follow by change of voltage of AQMS. The microcontroller (Arduino Mega) functioned to measure the voltage reading to determine the type of gaseous. Then the data will be sent to user by wi-fi module ESP 8266. The various experiments are performed to calibrate the accuracy of gas sensor MQ2 to get perfect reading.
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Aircrafts landing system stability improvement using model predictive control
(2014-11)
Mohammadmedhi Eskandarijajarm
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Alarm System With Wireless Sensors
(2019-10)
Azhan Bin Kamarulzaman
Nowadays, home security alarm system becomes a need for houses and buildings. Alarm system as a precaution device can help to protect our safety and belongings from danger for example burglary and fire attack. In this project of development of alarm system with wireless sensors, several improvement are done to make sure the alarm system can working more efficiently and convenient to the user. Normally a home alarm system is connected with the sensors using wiring connection. This causes some problem in installing the sensors at the desire places in the house, especially when the house is already completely built and occupied. This project is to develop a home alarm system with several specific sensors are used and connected to a centralized controller using wireless connection. The sensors used are magnetic contact sensor, motion sensor and heat sensor. These wireless sensors are able to detect burglary crime and fire attack incident. With this wireless connection, we can move easily the sensors location to better fit our home’s layout.
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An Algorithm for Future Communication Solutions Planning of Distribution Substation
(2020-09)
Anne Aswini a/p Sivayogam
The algorithm for future communication solutions planning of distribution substation assist in choosing the right medium depending on the substation criteria. The literature review focus on the wired and wireless communication technologies in 11kV substations. The substation criteria may vary from one another depending mainly on the terrain factor which includes either urban, suburban or rural area. In this algorithm there are 8 criteria to be fulfilled in order to display the most suitable communication medium to be applied at the desired substation. Justification for priority of criteria is done based on the 8 criteria that is mentioned in the scope of project. Choosing the right medium will allow maximum utilization of medium. The simulation is done using MATLAB and the results are observed and tabulated.
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All-optical spectrometer for EFDL sensor interrogation system
(2011)
Siti Maimi Binti Mat Khairi
;
This thesis presented an all optical spectrometer design for decoding the wavelength shifts from a series of white light sources input sensors. accurate simulated results have been implemented in FWHM and 20-dB of Power Spectral Density.
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All-optical spectrometer for EFDL sensor interrogation system
(2011)
Siti Maimi Binti Mat Khairi
;
The thesis presented an all optical spectrometer design for decoding the wavelenght shifts from a series of white light sources input sensors. Accurate simulated results have been implemented in FWHM and 20-dB of Power Spectral Density.
3 5

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