Keynote Speaker I
Prof. Ir. Dr. Mohd Hamdi Bin Abd Shukor, University of Malaya, Malaysia
Speech Title:Thin Film and Coating Development Using Physical Vapor Deposition Systems
Abstract: Several functional coatings (HAp, TiN, TiO2, Al2O3, CrAlN), were developed mainly for biomedical and automotive applications. The used of different Physical Vapor Deposition techniques like electron beam deposition, simultaneous vapour deposition and magnetron sputtering deposition, were utilized to deposit the coatings. The main objective of applying such coatings were to improve the overall mechanical performance of the parts or devices. Finite element method was carried out to ascertain the mechanical behaviour of the coating. Samples were subjected to relevant characterization analysis and physico-chemical tests. Tests were conducted to determine the mechanical properties of the coatings. Recently, a newly designed powder based magnetron sputtering system was successfully developed. A lot of exciting experiments were conducted using the system which is able to successfully sputter various type of ceramics, metallic and metallic alloy powders.
Professor Dr. Mohd Hamdi bin Abd Shukor received his B.Eng. (Mechanical), with Honours from Imperial College, London and his M.Sc. In Advanced Manufacturing Technology & System Management from University of Manchester Institute of Science & Technology (UMIST). His Doctoral study was in the field of thin film coating for biomedical applications for which he was conferred Dr. Eng by Kyoto University. He is a Fellow of the Institution of Mechanical Engineering, UK. Prof Hamdi has devoted his career in nurturing research and innovation and has mentored over 130 postgraduate students, particularly in the field of machining, materials processing and biomaterials. He has authored more than 150 ISI journals and h-index of 20. He is also a director and founder of the Centre of Advanced Manufacturing & Materials Processing (AMMP Centre), in which has grown from modest-size team of researchers and engineers to an interdisciplinary research hub. Prof Hamdi has obtained recognition from various international and local organizations.
Keynote Speaker II
Prof. Dr. Nawaf Hazim Saeid, Universiti Teknologi Brunei, Brunei
Speech Title: Prediction of Sand Erosion in a Crude Oil Choke Valve
Abstract: Two-phase turbulent flow of crude oil and sand in a plug and cage choke valve is analysed in the present article using 3D computational fluid dynamics simulations. The discrete phase model is used to simulate the sand particles flow and its interaction with the oil flow in the system. Parametric study is carried out to identify the governing parameters to minimize the sand erosion in the system. The valve geometry and dimensions are taken from an industrial oil production project. The parameter considered in the present study are the valve opening and the pressure difference in the inlet and outlet pipes. The simulation results are presented to show the erosion rate as a function of the valve opening and the pressure difference. It is found that the erosion rate is high for small valve opening as well as large valve opening. Minimum erosion rate is found when the valve opening is between 20-30% for all the cases with various pressure differences. Locations of maximum erosion rate are predicted in the simulations. The accuracy of the erosion rate prediction is directly affected by the accuracy of the available erosion correlation.
Bios: Nawaf H Saeid is a professor of Thermofluid Engineering at the Universiti Teknologi Brunei. He is a Charted Engineer (IMechE) with wide experience and strong technical and theoretical background in different areas of Mechanical engineering discipline. He received his B.Sc. and M.Sc. degrees from University of Mosul in Iraq, and his Ph.D. degree from the University Politehnica Bucharest in Romania. Possess strong work ethics in 6 different universities, ensuring high performance standards in teaching, research and university administration. Area of expertise include: Thermodynamics, Computational Fluid Dynamics and Heat Transfer, Refrigeration and Air Conditioning, Thermal Energy Management, Acoustics and Noise control, Numerical Techniques and Computer Programming.
Plenary Speaker I
Associate Professor Sujan Debnath, Curtin University Malaysia, Malaysia
Dr. Sujan (CEng MIMechE) had joined Curtin University Malaysia in October 2008 as a Senior Lecturer and promoted to Associate Professor in 2013. He had served as the HOD of Mechanical Engineering from October 2014 to December 2017 in Curtin Malaysia. Dr. Sujan obtained his PhD Degree from the University of Science Malaysia in 2006 majoring applied mechanics and heat transfer with specific research focuses on interfacial thermal mismatch stress analysis in electronic packaging. Over the years, he has been working in the area of thermo-mechanical stress analysis, green composite materials, and polymer composite materials. Dr. Sujan has more than 75 publications in reputable international journals and conference proceedings. Dr. Sujan is a Registered/listed Level 1 supervisor in Curtin University, Australia for Doctoral and Master Thesis (PhD and Master).
Speech Title: Themo-mechanical Interfacial Stress Analysis in Electronic Packaging at Different Temperature Conditions: A Review from Author's Work
Abstract: The study of thermal mismatch induced stresses and their role in mechanical failure is one relevant topic to composite materials, photonic devices and electronic packages. Therefore, an understanding of the nature of the interfacial stresses under different temperature conditions is necessary in order to minimize or eliminate the risk of mechanical failure. An accurate estimate of thermal stresses in the interfaces plays a significant role in the design and reliability studies of microelectronic devices. In the microelectronic industry, from a practical point of view, there is a need for simple and powerful analytical models to determine interfacial stresses in layered structures. This review paper summarizes the work conducted by the authors in relation to the bi-layered assembly with different temperature conditions on the determination of interfacial thermal stresses. The authors have extended the case of uniform temperature model by earlier researchers of two layered structure to account for differential uniform temperatures, linear temperature gradient in the layers. The presence of a heat source in one layer (die) is also presented. Finally, the effect of bond material properties and geometry on interfacial stresses and bond material selection approach are also considered in a simple way.
Plenary Speaker II
Prof. Andrew Ragai Henry Rigit, Universiti Malaysia Sarawak, Malaysia
Professor Andrew Ragai Henry Rigit received his B.Eng. (Mechanical) from The City University, London, U.K. in 1995, M.Eng. (Mechanical) from Universiti Malaysia Sarawak in 1997, and Ph.D (Fluid Dynamics) from Imperial College London, U.K. in 2004. His doctoral study was in the field of charge injection electrostatic fuel atomizer and its spray characteristics. He is a practicing professional engineer registered with the Board of Engineers, Malaysia.
Speech Title: Preliminary Design for a Tidal Power Plant at Kuching Barrage
Abstract: Tidal energy is one of most predictable and reliable source of renewable energy. It is also considered as the most certain and conscientious source of renewable energy that is not yet fully established in East Malaysia. The main aim of the study is to determine the potential site for tidal range power throughout East Malaysia by studying the tidal range distributions. The tidal range data was obtained from Sarawak Marine Department and documented by using ArcGIS version 10.3 to show the position of the sites. The study also evaluated a potential tidal power generation site, and thereafter the estimated energy output from the chosen site. The power can be generated from structured barrage, and Kuching Barrage is the only structure available, located at Pending among all estimated sites. Kuching Barrage is an environmentally friendly site and there are no security issues and it did not obstruct the published shipping lane. The mean tidal range of Kuching Barrage is 4.2m and the maximum flow rate over one gate is 226.9m3/s. In order to determine a suitable system to harvest the potential tidal energy from the site, a turbine selection chart was used. The bulb-type turbine with a rated power of 5.2MW is identified as a suitable turbine to be deployed at the site. The estimation of annual energy output is calculated based on a theoretical method, with the average daily potential energy estimated to be 2.8MW, or approximately 5TWh per year.
Plenary Speaker III
Prof. Rosli Bin Ahmad, Universiti Tun Hussein Onn Malaysia, Malaysia
Speech Title: New Lightweight Material for Automotive Application: Some Recent Developments and Potential Opportunities
Abstract: lightweight alloys are being increasingly used for applications, such as automotive and aerospace industries, where weight savings are critical. The strength of Magnesium alloy can be enhanced by adding proper amounts of certain alloying elements. In order to develop new alloy to achieve higher strength to compete with currently used metal alloys, it is important to understand the effects of alloying elements on the microstructure and mechanical properties. The addition of single Rare Earth (RE) to the alloy might result in great improvement in mechanical properties. Thus, the addition of proper amount of single RE into the alloy is one of the promising methods to improve the mechanical properties. Overall, the insights gained from this research will have a broad impact on understanding the strengthening behavior and microstructural evolution of RE-containing alloys, and such insights can serve as guidance for the development of new alloys and processes.
Invited Speaker I
Prof. Anika Zafiah Mohd Rus, Universiti Tun Hussein Onn Malaysia, Malaysia