1. SFG 3033 ENERGY PHYSICS
MINI PROJECT
JUNKYARD ELECTRIC POWER PLANT
USING HYDROELECTRIC CONCEPT
NAMA NO MATRIK
MUHAMMAD AZRIN BIN AZMAN D20101037531
MUHAMMAD AFIQ SYAHMI BIN PUAD D20101037534
RASYID BIN ABDUL SALAM D20101037524
MOHD NURUL AMRI BIN RODZI D20101037539
JUSMAN BIN MUKTAR D20101037504

2. HISTORY OF ELECTRICITY
• The first knowledge about electricity existed
people were aware of shocks from electric
fish.
Picture 1: Cat Fish Picture 2: Electric Eel

3. HISTORY OF ELECTRICITY
• In 1600, William Gilbert made a study of
electricity and magnetism, distinguishing the
lodestone effect from static electricity
produced by rubbing amber
• The name of “electric” and “electricity” was
taken from the New Latin word electricus, "of
amber" or "like amber" from Greek word to
refer to the property of attracting small
objects after being rubbed.

4. HISTORY OF ELECTRICITY
• Electricity and magnetism were definitively
linked by James Clerk Maxwell, in particular in
his "On Physical Lines of Force" in 1861 and
1862.

5. OBJECTIVE

6. TURBINE.

7. Materials used to create turbine.

8. INSTALLATION OF PERSPEK

10. The Turbine attached to the rotatory structure by using steel locker.

11. Why use Perspek?
• Excellent weather and UV resistance
• Low density / light weight compared with
glass
• High shock, abrasion and flex resistance
• Did not not get rusty.
• 100% recyclability

12. GENERATOR
ORIGINAL SPECIFICATION
• Generator is from the old
coconut grater machine
• DC motor
• 500 turn of coil
HOW TO PRODUCE
CURRENT ?
HOW TO CONVERT DC TO
AC MOTOR ?

13. AC MOTOR CONCEPT
AC motor concept which is
it must has a magnet and a
coil to cut the magnetic
field to create a changing
in magnetic flux and as a
result the current will
induced.

14. MAGNETIC FLUX
Picture 4: Magnetic flux

15. PRODUCING ELECTRIC
• Lenz law: The electic current is produce by
changing the mgnetic flux.
Picture 3: The mechanics in Lenz Law

16. SPINNER MODIFICATION
READY MADE MODIFICATION
The speaker magnet
There is no magnet on the was placed on the
original spinner in the AC spinner

17. MAGNET
FERRITE MAGNET NEODYMIUM SILVER
EARTH MAGNETS
• Not suitable for high
weight motor • Strong magnet
• Weaker magnet only • More suitable for the high
suitable for small motor motor
Whiteboard magnet that we
Speaker magnet that we
obtained from CCY bookstore.
obtained from scrap metal shop
Tg. Malim, Perak
at Ulu Bernam, Perak

18. HOW TO CONNECT ?

19. THE DESIGN OF JUNKYARD ELECTRIC
Cycle
Dynamo
Turbine
Belt
Picture 7: The design of Junkyard Electric

20. RESULT
Induced Current, Voltage and Resistance
trial Induced Voltage (V) Resistance (Ω)
current(A)
1 2.76 2.21 0.8
2 2.80 2.24 0.8
3 2.51 2.01 0.8
Average voltage = (2.01 V + 2.24V + 2.21V )/ 3
= 2.15 V

21. trial Total distance Time taken (s) Velocity (m/s)
(m)
1 1.0 2.4 0.48
2 1.0 2.2 0.45
3 1.0 2.4 0.48
Average Velocity of water = (0.48 m/s + 0.45 m/s + 0.48 m/s ) / 3
= 0.47 m/s

22. Volumetric flow rate (V) = (π/4) X (pipe diameter )2 X velocity of
water
Thus, Volumetric rate flow(V) = (π/4) X (diameter of hole on turbine
that trap river water )2
X velocity of water
Thus, Volumetric rate flow(V) = (π/4) X (0.15 m) 2 X 0.47 m/s
= 0.0083056 cubic meter per
second

23. Power (P) = HpV
Where, P = power in watt
H = height of water
p = density of water
V = volumetric flow rate in cubic meter
power (P) = (0.103 m) ( 1 g/m3) (0.0083056m3/s)
= 0.000855476 watt