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>> 2nd Prize
S$5,000
| Solar Powered Car Air-Con |
| ITE College West Dover |
| Fong Tat Choy, Kew Kian Chong
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The proposed device is an "electronic" air-conditioner. When the
interior temperature of a car, which is parked under the hot sun, reaches a
certain level, the "air-con" would deliver cool air to reduce the heat of the
passenger compartment.
It does not draw any power from the car power sources, such as battery or car
engine, it has its own solar panel to charge up the stand-alone battery source.
The device is not meant to take over the car air-conditioning system, it is to
provide cooling effect to car interior during the time when the car is not used
and parked under the hot sun in the parking lot.
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>> 3rd Prize S$3,000
| Water monitoring device |
| ITE College West Dover |
| Lew Kee Wan, Li Jun Hao, Lee Tian Xi
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This project is about designing and developing a device to provide
real time monitoring on the cost of water usages at home. This project is a
light and compact device. It is simple to install and only operated on 9V dc
supply. It comprises of a flow sensor installed in line with the water pipe
together with a micro-controller and a display panel. The display panel will
display the cost of water usage according to the flow rate. It provides the
cost of daily usage and also the accumulative cost on weekly and monthly basis.
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>> Merit Award S$1,000
| Aquaponics System |
| ITE College West Dover |
| Wilson Widjijanto, Stuart Tan Tian Phong, Ding Jun Hong
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Our project unions fish rearing and vegetable cultivation. We make
use of two tier tanks where fishes are kept in the lower tank while the
vegetation is grown in upper tank. We utilize the discharge of fishes as
fertilizers for the vegetables. The generator is driven by the water from the
upper tank. Water level switches will be used to automatically control the
water level in lower tanks. PH sensor will be used for replenishing dirty water
from the fish tank. Plant/vegetable grown will be healthier without those
harmful chemical. Both fishes and plant can be sold to markets.
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>> Merit Award S$1,000
| Self-maintained Eco Garden |
| ITE College West Bukit Batok |
| Ng Kian Wei, Neo Jinhui, May Tay Hui Fang
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The projects develop a self-maintained Eco Garden with fully
auto-control of watering. This is an earth friendly concept with everything
self contained & run by itself - a totally independence system. It collects
rain water from roof top stored into a tank and to water the garden. The
control circuit is powered by the battery, which is charged by a small turbine
driven by the extra rain water when the tank is overflow and discharge into
underground water tank. When water level is low the power will come from the
solar panel and pump water from the underground water tank. It will save water,
regulate watering to plant by a self-power control system.
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>> Merit Award S$1,000
| Recycling spent cooking oils |
| ITE College West Bukit Batok |
| Yang Wei Hao, Alan Loh Kok Loong
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The objective of this project is on converting spent cooking oils
generated by the institute's canteen food stalls into biodiesel by
transesterification chemistry, minimizing waste generated by the institute.
An optimization study was carried out during this study to determine the least
amount of sodium hydroxide needed in an excess ethanol reaction environment to
produce biodiesel. An average yield of 72% was achieved in the reaction. The
biodiesel obtained was subjected to two different ASTM (American Society of
Testing and Materials) tests (flash point and kinematic viscosity) tests to
determine purity. The process was scaled up using 1 litre of spent cooking oil
as the starting material and a biodiesel yield of 78% had been achieved.
Finally, work is progressing to manufacture more biodiesel with the aim of
blending it with normal diesel for use in the department's boiler that is used
to generate steam.
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>> Merit Award S$1,000
| Solar Powered Advertising Board |
| ITE College West Dover |
| Yoong Jian Ru, Chua Zong Yi, Soh Chen Yen, Lu MinQuan
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We have built an environmental friendly project called the "Solar
Power Advertising Board". This display panel is designed to scroll a stack of
posters at regular interval endlessly. A stack of posters is placed in the
display compartment for the viewers to view from the front. The pull-up
mechanism comprises rollers, motors and guides. Sensors are added to the
machine to synchronize the paper movement. After a predetermined interval, the
displayed poster would be pulled up and placed at the back of the stack of
posters, hence another new poster appears. The process is continues and the
displays are endless. To ensure that is environmentally friendly, the operation
is powered by battery and it is constantly being charged by solar panel
attached at the top of the display.
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>> Merit Award S$1,000
| Fish tank auto/recycle changing system |
| ITE College East |
| Muhammad Shauqi Bin Ibrahim, Muhammad Fathi Bin Kasmadi, Joshua Ching Puay
Guan, Muhd Samsul Ariffin Ismail, Tong Jingkai, Navin Joelle
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The projects harness the microcontroller and sensor technology to
minimize the water consumption for aquarium enthusiasts. A light sensor is used
to monitor the water cloudiness and activate the changing process as and when
necessary. The triggering level is preset by the users and the controller will
ensure the required water condition is achieved with minimum amount of water to
be topped up. The system also allows the disposed water be retained for other
uses, like water plants, flushing toilet or hydroponics application.
With the automatic features and other commercial pet devices, the system is
ideal for those frequent traveler fish enthusiasts. With the help of low-cost
technology, unlike the manual process that based on random judgment or rules of
thumb, the system systematically keep track of the tank cleanliness with
minimum of tap water.
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>> Commendation Award
S$500
| Clean air on the go |
| Victoria Junior College |
| Marianne Chin Yu Jie, Samuel Ng Tianci, Nicole Lee Xun Qi
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Our proposed project targets to purify air by filtering off smoke
and dust particles. Unlike commercial products, our product will be portable
and noise free, allowing usage at public places. With increasing air pollution,
there is a greater need for air purifiers to be carried by asthmatics,
especially useful at bus-stops and dusty construction sites. We experimented on
the cotton filter and found it to be effective in filtering off smoke and dust
particles. Thus, we decided to incorporate it in our product. In order to
increase the efficiency of it, we maximized the surface are of the cotton
filter by wrapping it around the negative ion generator.
Our device works by passing the polluted air through it, whereupon it gets
ionized and then filtered as it leaves the device. This traps unwanted
particles and pollutants, removing it from the air.
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>> Commendation Award
S$500
| Overhaul of Singapore's recycling industry |
| Serangoon Junior College |
| Jasper Tan Jie Peng
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The Germans have a nation-wide system of recycling bins where
residents can conveniently dispose their recyclable materials with no
confusions. This system contributes significantly to a flourish recycling
industry in Germany. The "sort-and separate" system could be implemented in the
HDB estates in Singapore too. First, rubbish chutes could be separated into
colour-coded sections, such that people can dispose their rubbish by different
categories. Next the articles collected at each block can be sent to designated
destination for recycling. The aim of this project is to facilitate the
recycling processes, as well as to initiate the recycling mindsets in our
people.
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>> Commendation Award
S$500
| Trace elemental analyses of water spinach (Ipomoea aquatica) |
| Nanyang Junior College |
| Lit Pei Wen, Nurashyura Bte Ishak
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The objective for this study is to investigate the concentrations
of elements As, Cu, Cd, Pb and Zn in water spinach (Ipomoea aquatic), known
locally as "kang kong". 13 samples of water spinach were collected island-wide
and prepared for digestion. The concentrations of the elements were determined
by ICP Spectrometer. Half of the samples exceeded the FAO/WHO permissible
limits of 1 ppm, 0.3 ppm, 62 ppm for As, Cd and Zn respectively, dry weight
basis. Generally, no samples exceeded the limit of 40 ppm and 5 ppm for Cu and
Pb respectively. The basal levels of those elements were also investigated
based on GAP samples cultivated in the laboratory.
The accumulating properties of Ipomoea aquatic can be used to phytoremediate
Zn-polluted areas or even be integrated to cleaning up factory wastes before
discharging the wastes to the sea or the sewage system. An important overall
conclusion from the project is that the quality of vegetables we consumed is
very dependent on the environment.
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>> Commendation Award
S$500
| Trace elemental analyses of local watercress (Nasturtium Officinale) |
| Nanyang Junior College |
| Ang Xiang Ling, Chai Chia Leng
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The objectives of the project were to determine the concentration
of metalloid As and other heavy metals, such as Cd, Cu, Pb and Zn in local
watercress from different sources and to investigate the distribution of the
metalloid - As and heavy metals in the roots, stems and leaves of watercress.
It was found out that the As concentrations in the residual water decreased
steadily from day 0 to day 12. This is because As content in the water supplied
is taken up by watercress or As is volatile and thus can evaporate into the
air, decreasing its concentration in residual water.
In conclusion, for this spiking experiment, the environment does influence the
concentration of element in watercress. Therefore measures have to be taken to
ensure a clean farming environment so that the vegetables we ear are clean and
safe from contamination.
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