Tan Wee Choon,Dr
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/32984
This page provides access to scholarly publications by UniMAP Faculty members and researchers.2024-03-29T09:12:51ZDesign and development of an Emotional Stress Indicator (ESI) kit
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/33728
Design and development of an Emotional Stress Indicator (ESI) kit
Azian Azamimi, Abdullah; Umida Hafsah, Hassan
Emotional Stress Indicator (ESI) kit is a wearable sensor device that used to measure the human stress level. Many people out there do not aware about their level of stress that will give a big impact in their life. So this study is aimed to design and develop an Emotional Stress Indicator (ESI) kit which can display stress level among people. This ESI kit is constructed based on human skin resistance which is changed upon condition. Human skin offers some resistance to current and voltage. The skin resistance changes with the emotional state of the body. From galvanic skin response theory, resistance varies inversely proportional to the stress. Stress level is high when the resistance of skin is less. In the relaxed state, the resistance offered by the skin is as high as 2 megaohms or more, which reduces to 500 kilo-ohms or less when the emotional stress is too high. The reduction in skin resistance is caused by an increased blood flow and permeability followed by the physiological changes during high stress. This increases the electrical conductivity of the skin.
Proceedings of the IEEE Conference on Sustainable Utilization and Development in Engineering and Technology, 2012
2012-01-01T00:00:00ZOptimization of Tesla Turbine using Computational Fluid Dynamics approach
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/33723
Optimization of Tesla Turbine using Computational Fluid Dynamics approach
Aik, Lim Eng; Jer, Foo Shy; Choon, Tan Wee; Rahman, A. A
A Tesla turbine is developed in order to utilize the potential energy within household water supply and convert to electricity energy without significant head loss. Pressure within the water supply having higher potential energy compared to the energy needed to reach the reservoir tank. This extra potential energy can be utilized and convert to useful energy before it being waste after reach reservoir tank. The development of Tesla turbine is carried out to determine disc size, disk gap and number of disc base on theoretical calculation of Tesla turbine. Optimization is done by using Computational Fluid Dynamics (CFD) software package. Actual performance analysis for prototype based on RPM and torque also conducted. After the optimization, we observed that the Tesla turbine design yields torque of 0.0330N.m with an efficiency of 10.7%.
Proceedings of IEEE Symposium on Industrial Electronics and Applications (ISIEA 2011) at Langkawi, Malaysia on 25 September 2011 through 28 September 2011.
2011-01-01T00:00:00ZDeveloping land use scenario dynamics using cellular automata and agent Integrated model
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/33708
Developing land use scenario dynamics using cellular automata and agent Integrated model
Aik, Lim Eng; Choon, Tan Wee
An integrated model of Cellular Automata (CA) and
Agent is developed to model land use scenario changes and its
potential impact on the structure and function in typical region
which are helpful to understand the mechanism between land use
system and population growth. This model makes a fusion of
agent and CA self organization models for flexible computing in
order to developed a system of urban land use simulation in
Malaysia Kedah state in next 50 years. The system makes three
simulations under different scenario to model the land use
demand in Kedah by using Agent Integrated module in the
system. The results shows that the system have the ability to
reflect the complex behaviors of land use system at different
scales to some extent and be a useful tool to access the potential
impact of land use system on population growth and ecosystem.
Proceedings of IEEE Symposium on Industrial Electronics and Applications (ISIEA 2011) at Langkawi, Malaysia on 25 September 2011 through 28 September 2011.
2011-01-01T00:00:00ZComputational fluid dynamics analysis of shelland-double concentric-tube heat exchanger
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/33706
Computational fluid dynamics analysis of shelland-double concentric-tube heat exchanger
Choon, Tan Wee; Mohd Shahril, Shariff; Law, Matthew; Aik, Lim Eng
A shell-and-double concentric-tube heat exchanger is a
new invention in heat transfer devices that is used for transfer of
internal thermal energy between three fluids at different
temperatures. The structure of the heat exchanger for this project is
made of a shell which encloses sixty-six double concentric tubes.
There are three inlets and three outlets for all the fluids. The typical
shell-and-tube heat exchanger is not ideal in terms of its size. This
contributes to an increased cost of manufacturing and installation,
and on top of that, consumes a lot of space. This project is
conducted using Computational Fluid Dynamics software package
of EFD.Lab. At the end, the result in terms of the length of the heat
exchanger required to achieve the desired outlet fluid temperature
is compared with Kern method. It is found that all results have
close agreement with each other, with acceptable range of
percentage differences and errors.
Proceedings of IEEE Symposium on Industrial Electronics and Applications (ISIEA 2011) at Langkawi, Malaysia on 25 September 2011 through 28 September 2011.
2011-01-01T00:00:00Z