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>> 2nd Prize
S$6,000
| Development of a reliable continuous water monitoring system for inland
waters |
| Singapore Polytechnic |
| Ong Jun Quan, Lim Tze Yang Darren, Tan Guo Chang |
Continuous monitoring of water quality parameters in water bodies
is very essential for many communities worldwide. However, the water quality
measuring probes/sensors placed in these water bodies are easily fouled up by
bio-growth resulting in maintenance problems and inaccuracies in data
collection.
A motor is powered by solar energy and controlled by a programmer to cause the
probes/sensors to move intermittently. This action would retard bio-growth.
Results from each monitoring station can be downloaded to a Central Data Centre
via GPS and wireless technology for data analysis as well as on-line monitoring
(similar to that of air monitoring giving the PSI readings).
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>> 2nd Prize S$6,000
| Human powered exercise machine |
| Ngee Ann Polytechnic |
| Neo Boon Kiat, Lee Beng Chuan, Ng Bing Rong |
The purpose of the project is to introduce to people how energy
can be generated using human power. It is also used to educate the basic
principle of electricity generation.
A commercial exercise machine like the treadmill uses electricity to drive a
motor which in turn drives a belt for the user to walk or to run on.
The commercial treadmill is being re-engineered so that the user will have to
walk on the belt which in turn drives the generator (Previously a DC Motor) to
produce electricity. This electricity can be used to drive a load directly and
/ or to charge up a rechargeable battery. The energy stored in the battery can
be used to operate any sizable electrical loads like a TV, a Fan, a computer or
a sound system. A DC to AC inverter has been introduced to this system to make
it a more versatile package. A digital FM receiver and a small color television
have been introduced to act as our primary DC load. To supplement the load and
inverter with a constant power supply, a 12V battery is used to provide a
constant supply to the load.
As the user walks on the belt, the generator will produce a charging current
and will thus charge up the battery and at the same time, the battery will
supply a constant voltage to the load on the exercise machine. This can be
primarily used as an educational tool to explain to people how difficult it is
to generate electricity and hence bring forth the importance of not wasting
electricity.
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>> 3rd Prize S$4,000
| Phytoremediation using ferns: Rapid arsenic removal system |
| Ngee Ann Polytechnic |
| Jaesen Leo Jun Lin, Chan Soek Yeng Stephanie, Choy Mun Ling Jessica |
This is a multi-disciplinary environmental chemistry project
involving phytoremediation by local ferns. We investigated arsenic (As)
hyperaccumulation for brake and silver ferns. Our results showed that all
growth stages (spores, gametophytes, sporophytes) can tolerate As concentrations
of up to 250 ppm. Ferns were able to absorb the As from soil/water and
trap it within their tissues. In our trials, brake ferns growing in elevated
CO2 reduced As in water to the USA's EPA 10 ppb limit within 2 days.
This result implied that these ferns could potentially be used for large-scale
"cleansing" of As-tainted waters around the world.
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>> 3rd Prize S$4,000
| Renewable energy fuel cell system |
| Ngee Ann Polytechnic |
| Shen Luxiang, Cui Lei Lei, Chiew Ming Sheng |
Basically, our project captures solar energy which is eventually
used through fuel cell technology as an electricity source. We use solar cells
to run on electrolyzer to produce hydrogen. The hydrogen is collected in metal
hydride cylinders and used to run the fuel cell.
The fuel cell electrochemically converts hydrogen and oxygen (from the air)
into electricity which is used to power a display panel or other appliances.
The whole system does not depend on fossil fuel, but solar energy which is
inexhaustible and renewable. It is also pollution-free and environmentally
friendly or 'green'. The fuel cell is able to generate electricity day and
night, through the stored hydrogen.
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>> Merit Award S$1,000
| Ozone cooling tower water treatment system |
| Ngee Ann Polytechnic |
| Klaosamutara Charles, Lim Kanson Danny, Muhammad Azhari B Abu Tablib |
Ozone cooling tower water treatment system is designed to use the
ozone to kill the bacteria that have formed in the cooling tower system. It can
also reduce bio-film, increase thermal efficiency and prevent scaling. It is
considered to be the most powerful oxidizing agent for water treatment. It also
eliminates most taste, odor and colour from water, therefore, our project is to
design a cooling tower system with ozone treatment. Currently, there are 4
types of method, such as Chemical treatment, Ultra violet light treatment (UV
rays), Ozone treatment process and Chlorine dioxide treatment process are ways
to remove bacterium. Consider as one of the most powerful methods, Ozone can
remove the use of chemicals, dissolving scaling, improve operating efficiency
and reduce operating costs. Cooling tower also associated with chillers for
air-conditioning are good candidates for ozone application. Ozone may be a
corrosion stimulant rather than an inhibitor, and this can be a factor in some
circumstances. Nevertheless, it is easier to combat corrosion in a clean system
that in one that is biologically and mineralogical fouled.
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>> Merit Award S$1,000
| Smoke free incense burner |
| Ngee Ann Polytechnic |
| Nargunan s/o Goby, Yon Ek Meng |
One of main causes of air pollution in Singapore is burning of
paper and others such as leaves. The thick smoke can be unbearable to the eyes
and causes breathing difficulties for kids and the elderly. This project is to
come up with an anti-pollution system that can be installed in an incense paper
burner, BBQ pits or other source of smoke and heat. It makes use of the heat
generated from the burning to turn water into steam. The steam is then mixed
with the smoke in a chamber which will also condense the water vapors to
capture the smoke particles before they discharge into the air, thereby reduces
the air pollution in our housing estates. The new burner can be placed anywhere
in the estate.
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>> Merit Award S$1,000
| Autonomous dwelling unit |
| National University of Singapore |
| Ang Wei Heong, Wong Ker How, Lee Jia Xian |
The autonomous dwelling unit is a prototype for the future
dwelling where the need to acquire electricity from the power grid, freshwater
from the reservoirs and the need to discharge sewage into the central sewage
system is eliminated. This can be achieved by generating our own electricity
using photovoltaic panels, rainwater harvesting and treating our wastes, all
within the space of the house. The broader idea is that if we can achieve an
autonomous dwelling unit, we can have an autonomous building, followed by an
autonomous neighbourhood and eventually an autonomous city.
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>> Encouragement Award
S$200
| Micro Hydro System |
| Ngee Ann Polytechnic |
| Tan Swee Song William, Lua Chee Haw, Huang Bin |
The objective of our project is to use renewable energy to
supplement our energy needs and to reduce our dependence on fossil fuels. Our
prototype simulates an actual system in a high rise building. In daytime, we
will use a pump driven by solar to pump water up and store it in an upper tank
on top the building. When night falls, water on top is released down freely to
drive the turbine. The loads of the turbine are corridor lights. This whole
system is controlled by PLC and runs automatically daily.
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>> Encouragement Award
S$200
| Environmental friendly liquid waste treatment |
| Temasek Polytechnic |
| Taufan Pratama Kowara, Lim Wanni, Lau Jia Yi, Tan Wei Jian, Tey Tai Keat, Khiu
Hui Leng, Ng Lenni |
The project seeks to develop an innovative and environmental
friendly waste treatment method for metallic waste that is commonly discharged
from the metal finishing, semiconductor manufacturing and microelectronics
industries. The proposed method combines the benefits of both electro
deposition and ion-exchange technology to effect near negligible discharge of
waste. This is a vast improvement over the conventional precipitation method of
treatment, which is environmentally unfriendly, and costly to run. Moreover,
the new treatment method will also result in significant cost savings for the
whole industry. About S$280,000 per year can be saved over the cost of the
conventional method for every 500m3 of concentrated copper waste treated using
this novel method every month.
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>> Encouragement Award
S$200
| Standalone reverse osmosis system |
| Ngee Ann Polytechnic |
| Ng Bing Rong, Lee Beng Chuan, Neo Boon Kiat |
This is a standalone water purification system that can be used in
stress-relief operations or on expedition trips where water supply is limited.
By collecting rainwater or river water, the water can be processed through the
system to achieve potable water. The water is pumped through the membrane where
the product is clean permeate water and reject discharge water which is clean
enough for washing. The main power supply for the system comes from a 24V
battery. A solar panel array is the main charging component for the system.
This allows it to be deployed easily at almost anywhere and anytime.
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>> Encouragement Award
S$200
| Mosquito-proofed flower pot |
| Ngee Ann Polytechnic |
| Zhang Yu Le, Hon Shi Hao |
The mosquito-proofed flower pot is a double-walled flower pot for
collecting excess water (rainwater and watering water) and recycling the water
using high absorption sponge back to the soil for watering the plant.
The excess water is enclosed in the double-wall to prevent mosquitoes from
breeding in it.
In addition, there is a small hole at the side of the flower pot to allow for
excess water collected in the pot to overflow. Too much water will kill the
plant. To prevent mosquito breeding the small hole has a mosquito-proofed
netting over it.
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>> Encouragement Award
S$200
| Designing and fabricating cementitious products with recyclable waste for
the construction of a pond cum fountain |
| Singapore Polytechnic |
| Benjamin Tan Wen Kwan, Lee Chuen Wen |
An environmental care and protection project that aims to involve
students in contributing towards the conservation of Singapore's environment.
This project aims to recycle waste of different types for the production of
non-structural concrete and cementitious products. Thus readily available waste
of different types, for example saw dust, will replace and reduce the need for
large volume of sand and aggregate and thus reduce wastage of natural resources
and adverse impact on the environment.
In this project we are experimenting with different types of waste including
sawdust, shredded or crushed plastic as the aggregate for non structural
concrete components.
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