RIVERS STATE UNIVERSITY OF SCIENCE AND TECHNOLOGY, P.M.B.5080,
NKPOLU-OROWORUKWO, PORT HARCOURT
DEPARTMENT OF MARINE ENGINEERING
SIX MONTHS REPORT ON STUDENTS INDUSTRIAL WORK EXPERIENCE
SCHEME (SIWES)
AT
AKPOS MARINE, ABULOMA, PORT-HARCOURT, RIVERS STATE
OYEGBEMI KABIRU OLAYINKA
DE.2011/0686
SIWES SUPERVISOR: ENGR MORISON
SEPTEMBER, 2015.
1
RIVERS STATE UNIVERSITY OF SCIENCE AND TECHNOLOGY, P.M.B.5080,
NKPOLU-OROWORUKWO, PORT HARCOURT
DEPARTMENT OF MARINE ENGINEERING
SIX MONTHS REPORT ON STUDENTS INDUSTRIAL WORK EXPERIENCE
SCHEME (SIWES)
AT
AKPOS MARINE, ABULOMA, PORT-HARCOURT, RIVERS STATE
OYEGBEMI KABIRU OLAYINKA
DE.2011/0686
SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENT FOR THE
AWARD OF BACHELOR OF TECHNOLOGY DEGREE, IN THE FACULT OF
ENGINEERING OF THE RIVER STATE UNIVERSITY OF SCIENCE AND
TECHNOLOGY, NKPOLU OROWORUKWO, PORT HARCOURT.
SEPTEMBER 2015
2
ABSTRACT
Industrial training in a full maritime company like Akpos marine, provide student the opportunity to experience
and practice there theoretical knowledge, bridging the gap between theory and practical’s. The company
incorporate almost all maritime service, such as welding, Crain operations, sand blasting, boat operations,
painting and other services. Her strategic location gives her edge over most competitors. In this report, student
industrial work experience scheme (siwes) was introduced and its objectives, the work carried out in the
company was presented section by section for the duration of six month with two work in each section analyse
in detail, from April to September 2015.the problem in the engineering section was analysed, bar chart was
use for easy glancing, computer soft ware like auto cad was used to give a formal presentation of the work done,
the possible cause of the problem was enlisted and the solutions were deduced from lecture notes and
proceeding industrial training in the second and third year of my program( fec 200 & fec 301).This solutions
was presented in the recommendations. Graph was plotted to show the variation in fuel consumption at
difference engine speed in chapter two. Chapter three feature the experience gained and the challenges
encountered while chapter four contain the conclusion and recommendations.
Key word: Siwes, kome, engineering.
3
DEDICATION
This work is dedicated to the glory of Almighty
4
AKNOWLEDGEMENTS
With profound gratitude to the Almighty God for his love and mercies, which have enable me
to write these report to him be all the glory forever.
I am highly indebted to the management and staff of Akpos marine limited for their support
in terms of giving me access to their equipment and facilities. I thank engr Saturday, the base
engineer, who have taken time and pains to explain and show me the basic things writhing in
these report also thank engr Chi boy and other workshop boys for their support.
I am extremely grateful to the school administration for giving me the opportunity to blend
my theoretical knowledge with practical and expose me to the work environment.
Finally, I want to specially thank engr Dick Festus my siwes co-ordinator and engr Morison
my institute siwes supervisor who discipline and strictness as made me work these far may
God bless you all.
5
CONTENTS
Abstract
i
Dedication
ii
Acknowledgement
iii
Content
iv
Chapter one
1.0 Siwes
1
1.1 Objective of siwes
1
1.2 Akpos marine limited
2
1.3 Mission
2
1.4 Vision
2
1.5 Service
3
Chapter two
2.0Technical report
4
2.01 Engineering department
4
2.02 Running and maintenance of diesel engine
4
2.1 Engine starting procedure
4
2.2 Sound
4
2.3 Vibration
4
2.4 Oil gauge and dip stick
5
2.5 The exhaust
5
2.6 Breaths out
6
2.7 Precaution
7
2.8 Work challenges
7
2.9 Detail report on engine overhauling carried out in the company
8
2.9.1 Procedure
8
6
2.9.2 Observation
8
2.9.3 Assembly
9
2.9.4 Precaution
10
2.10 Summary of work done in engineering section
14
2.11 Analysis of work done in the engineering department in bar chart
15
2.12 Analysis of problem encountered
15
2.12.2 Contamination
15
2.12.3 Valve drop
16
2.12.4 Engine knock
16
2.12.5 Loss of compression
16
2.13.1 Procedure
17
2.13.2 Precaution taking
18
2.14 Installation of steering ram in kome iii
19
2.14.1 Work procedure
18
2.14.2 Precaution
19
2.15 Summary of work carried out in the boat operation section
21
2.16 Welding department
22
2.16.1 Tank fabrication
22
2.16.2 Procedure
22
2.16.3 Precaution taking
22
2.17 Barge maintenance
23
2.17.1 Barge specification
23
2.17.2 Procedure
24
2.17.3 Precaution
25
2.18 Summary of work done in the welding department
26
2.19 Sand blasting, painting and crane operation department
26
Chapter three
7
3.1 Engineering department
27
3.2 Challenges
27
3.3 Welding department
27
3.4 Challenges
28
3.5 Crane operation department
28
3.6 Challenges
28
3.7 Boat operation
28
3.8 Challenges
29
3.9 Painting
29
3.10 Challenges
29
3.11 Sand blasting
29
3.12 Challenges
29
3.13 social skill acquired during scheme
29
3.14 General challenges encountered in the scheme
30
Chapter four
4.1 Conclusion
31
4.2 Recommendation
31
4.2.1 siwes
31
4.2.2 Health safety environment
31
Reference
32
Appendix
33
8
CHAPTER ONE
INTRODUCTION
1.0
Siwes
The Government’s decree No. 47 of 8th October 1971 as amended in 1990 Highlighted the
capacity building of human resources in industry, commerce and government through
training and retraining of workers in order to effectively provide the much needed high
quality goods and services in a dynamic economy as ours (Jemerigbo, 2003). This decree led
to the establishment of Industrial Training Fund (ITF) in 1973/1974
The growing concern among our industrialists that graduates of our institution of higher
learning lack adequate practical background studies preparatory for employment in industries
led to the formation of Students Industrial Work Experience Scheme (SIWES) by ITF in
1993/1994 (Information and Guideline for SIWES, 2002). ITF has one of its key functions; to
work as cooperative entity with industry and commerce where students in institutions of
higher learning can undertake mid-career work experience attachment in industries which are
compatible with the area of study (Okorie 2002).
The students Industrial Work Experience Scheme (SIWES) is a skill training programme
designed to expose and prepare students of Agriculture, Engineering, Environmental Science,
Medical Sciences, Pure and Applied Sciences for the industrial work situation which they are
likely to meet after graduation and also to bridge the gap existing between there theoretical
knowledge and practice. Duration of SIWES is four (4) months in Polytechnics at the end of
NDI, four (4) months in College Of Education at the end of NCE II and six (6) months in the
universities at the end of 300, 400 or 500 levels depending on the discipline (Information and
Guideline for SIWES, 2002).
9
1.1 Objective of Siwes
The objective of SIWES among others includes:
i.
prepare students for the industrial work situation which they are likely to meet
after graduation,
ii.
provide an avenue for students in institutions of higher learning to acquire
industrial skills and experience in their approved course of study,
iii.
expose students to work methods and techniques in handling equipment and
machinery not available in their institutions
iv.
provide students with an opportunity to apply their knowledge in real work
situation thereby bridging the gap between theories and practices, and vi
v.
enlist and strengthen employers’ involvement in the entire educational process and
prepare students for employment in industry and commerce (Information and
guide line for siwes 2002)
1.2
Akpos marine limited
Akpos marine limited is a maritime company situated in abuloma, Port Harcourt, Rivers state.
The company was incorporated under the Company and allied matter Act of 1990 of the
Federal Republic of Nigeria with registration number RC 422406 on August 17th 2001.
AML strength lies within its in-house team of Master Mariners who are fully conversant with
the engineering, technical and operational skills required in today's offshore environment.
The qualifications and experience of her Mariners coupled with the complementary skills of
her offshore broking staff enables AML to offer the wide range of integrated services which
centers on the Oil and Gas sector and Marine Transportation.
10
1.3 Mission
To operate under the imperatives of integrity, professionalism, reliability and effectiveness in
the provision of services to our clients and to offer cost effective solutions to their technical
and operational needs.
1.4
Vision
To be Africa’s most Preferred, Innovative and Powerful solution in the Marine, Oil and Gas
sector.
1.5
services
Akpos marine limited, offer full service solutions to meet the challenges for offshore and
onshore field development, upgrades or revamps projects. The emphasis is on flexibility and
responsiveness to project requirements so as to satisfy demand for new approaches, by
operators, government regulations, international standards and end product users.
The company have the requisite competence, technical resources and commitment to meet
these new challenges, through a Synergy of efforts by engaging her local capacity aiming to
maximise local content involvement and to further develop the nation’s capabilities.
The company’s business activities can be broadly classified into construction services,
corrosion
control
services,
mechanical
group,
instrument/control system group.
11
equipment
supply
services
and
CHAPTER 2
2.0 TECHNICAL REPORT
The work carried out in the company is presented department by department in this chapter.
A detail report on two of the work carried out in the various sections is presented while others
were presented in summary for simplicity and analysis.
2.01 Engineering department
April to September 2015
2.1 Running and maintenance of company base engines
We carried out routine check on the engine performance, by checking the pressure gauge, the
dip stick, sound, exhaust, breath out and the vibration of the engine to ensure it is in a good
working condition.
The table below show the engine name, location, diesel and oil consumption.
s/
n
Engine
Location
Use
Diesel
consumption
Oil consumption
Electricity
2.30L/h
8 litre/servicing hour
4.20L/h
15 litre/servicing hour
1
Caterpillar
3304
Power house
2
Caterpillar
3406
Power house
3
Perkins 18
Water front
welding
No gauge
4 litre/servicing hour
4
Perkins p-20
Comp unit
sand blasting
No gauge
8 litre/servicing hour
5
-
work barge
welding
No gauge
8 litre/servicing hour
6
-
work barge
pumping
No gauge
2 litre/servicing hour
7
-
work barge
pumping
No gauge
2 litre/servicing hour
welding mach
12
2.1 Engine starting procedure
 We do a work around inspection on the engine, checking for leakage or loose bolt
 We Check the fluids: the radiator, the oil gauge, the dip stick and the diesel tank
 We make ensure that our battery terminal is well connected and we note the starting time.
The following are the things, we watch out for during our daily watch keeping
2.2 Sound
The sound of the engine should be steady, any increase or decrease show load increment or
decrement.
2.3 Vibration
Vibration is affected by transient load and the type of mountain use, engine without resilient
mountains vibrate more
The figure bellow shows the different mountains that effect the vibration of the engine.
2.4 Oil gauge and dip stick
The oil gauge in the power house is normal at 50 psi.We inspect the dip stick before starting
the engine and when we notice abnormality we check the gauge.
13
The figure bellow shows the power house (left) and how I took my date directly from the
gauge (right).
2.5 The exhaust
The exhaust should be sky blue. A too white exhaust post a sign of knocking and too thick
and fire mix exhaust show incomplete combustion cause by abnormal ignition or dirty in the
air filtering system
2.6 The breath out
The normal smoke from the breath out is fairly white, worm and not too obvious smoke any
deviation from that will indicate that something is wrong in fluid system of the engine.
The following are what we check up monthly
 The running hour
 The air filter for dirt
 The radiator coolant
 The diesel tank to remove splurges and sediment
14
2.7 Precaution
 We maintain clean and oil free environment
 We emphasis ear muffler in power house and complete personal protective equipment
2.8 Work challenges
 The alternator of all the engines except the one in power house is not working and the
batteries is not always charging, we have to carry the heavy batteries from power house to
their respective locations.
 Frequent removal and plugging of the batteries terminal head gradually destroy the
batteries.
The figure bellow shows the fuel consumption (right) and oil pump pressure at difference
speed (left) of one of the engine in the power house.
2,5
80
70
60
50
1,5
[PSI]
[LIT/HR]
2
1
40
30
20
0,5
10
0
0
1500 1600 1700 1800 1900 2000
1500 1600 1700 1800 1900 2000
[RPM]
[RPM]
15
2.90 A DETAIL REPORT ON OVERHAULING OF PROPULSION ENGINE
CARRIED OUT IN THE COMPANY
Date: 11 may 2015
Problem: valve drop
Work duration: 5 days
Engine specifications
Manufacturer
Caterpillar
Model
3304
Turbo charger
Constant pressure
Rated speed
2200 rpm
Use
Boat propulsion
Absent temperature
25
Cooling system
Shell and tube heat exchangers
Valve lash
0.38
Displacement
10.5 L
2.9.1 Procedure:
 Step 1 : we remove the fuel and injector pump
 Step 2 : we remove the exhaust manifold, gasket and turbo charger
 Step 3 : we remove the thermostat, gasket and water pump
 Step 4 : we remove the cylinder head, valve and it accessories
 Step 5 : we remove the front plate, oil filters, oil pan(sump) and oil pump
 Step 6 : we remove the connecting rod cap and the piston
 Step 7: we remove the fly wheel, main bearings, trust watcher, end plate and crank shaft.
16
2.9.2 Observations
The following were observe in the cause of the overhauling
 The crank shaft was observed for were and was found to have 0.20mm diameter reduction
at the connecting rod 1 and 4 web of the shaft, using micro meter screw gauge.
 Two exhaust valves in top cylinder one, the inlet valve in top cylinder four along and the
insert was found dropped in the cylinder.
 Piston 1 and 4 was severely deformed at the crown by the falling valve
The following changes was made
 Piston one and four was replace with new ones
 The piston rings in all the piston was replaced with new ones
 The crank shaft web diameter of the unaffected web was reducing to 0.20mm to achieve a
uniform diameter using the lath machine.
 New gasket in all the part using gasket.
 Orange and ferrous seal was changed at the top of the engine block.
2.9.3 Assembling
The assembling follow a reverse order of the dismantling steps, the following activities was
carried out during the assembling.
 The gear train was properly timed using cylinder one
 We set the valve lash using 0.25mm filler gauge
 We set the injection pump using it timing gear
17
2.9.4 Precautions
The following recursions and inspection was considered
 We clean oil spill in the work environment immediately to prevent accident.
 We mark the gear before decoupling it, to avoid improper timing.
 We put on our complete personal protective equipment, to prevent injury.
 We avoid working under stress and discomfort.
 We apply sufficient oil on all the moving component before installing, to reduce
friction
The figure below shows an assembly drawing of the dismantling process, from step one to
seven.
Step one
11 = injection pump ,8,7&10 = fuel line.
18
Step 2
23 = turbo charger, 29 =exhaust manifold, 33 =gasket.
Step 3
13 = Thermostat, 15 =water pump.
19
Step 4
8 =Valve,16 =Top cylinder,4 =Gasket,5 =Key,6 =Spring cap,7 =Spring,10 =Sit,14 =Insert
Step five
9 = Sump, 12 = Stiffener, 1= oil filter, 10 = Oil screen, 19 = front lower case, 27 = Inner
rotor,13 =front upper case,22 = Plug,39 = Gasket
20
Step 6
1=Nut,2=Connecting rod cap,3=Con bearing,4 =Piston&con rod assembly,5=Con rod
bearing,7&8=Piston rings,9=Oil ring,10=Snap ring,11=Piston pin,14=Bushing.
Step seven
1=Flywheel, 5=rear plate,8=oil seal,9=gasket,10=oil separator,12=bearing cap,
=crankshaft, 17=cover, 18=packing, 21=cylinder sleeve, 22=cylinder block
21
2.10 SUMMARY OF WORK DONE IN THE ENGINEERING SECTION
S/N
Work
1
Partial
Caterpillar
overhauling
3306
Partial
Caterpillar
overhauling
3306
Running
and Cat 3k304
maintenance
Cat 3406
p-18
p-12
2
3
4
5
Remedy for
engine hard
starting
Complete
overhauling
6
Partial over
hauling
7
Partial over
hauling
Partial over
hauling
8
9
10
11
12
13
14
15
Partial over
hauling
Cylinder head
overhauling
Engine
Course/problem
Equipment
Valve drop
Kome vii
Valve drop
Kome vii
Pw house
Pw house
Wedding
machine
General
motor
Engine air lock
Kome iii pt
Caterpillar
c-18
Contamination
Caterpillar
D-13
(overhead
cam) pt
Caterpillar
6 inline
Caterpillar
D-13
(overhead
cam) st
Caterpillar
6 inline
Caterpillar
3406
Valve drop
Conqueror
tyre. Navy
boat
Kome iv
Valve drop
Turbo
charger
system
Constant
pressure
Constant
pressure
Pulse
Cooling system
system
cooling coil
Non turbo
charge
Shell & tube
H.E
Shell & tube
H.E
Radiator and air
Shell & tube
H.E
Wet exhaust
system
Constant
pressure
Shell & tube
H.E
Crane
Pulse
Radiator
Valve drop
Kome iv
Constant
pressure
Shell & tube
H.E
Valve drop
Crane
Pulse
Radiator
Loss of
compression
Kome 1
Constant
pressure
Shell & tube
H.E
Non turbo
charged
Constant
pressure
Air cooled
Complete
overhauling
Complete
overhauling
Trouble shooting
Perkins p18
Perkins p18
Caterpillar
3208
Engine knock
Loss of
compression
Engine knock
Welding
machine
Compressor
Engine
Mv enuku
Remedy to
engine hard
starting
Over hauling
Caterpillar
6 inline
Engine air lock
Pay loader
Pulse
Radiator
contamination
Kome vii
Valve drop
Kome vii
Constant
pressure
Constant
pressure
Shell & tube
H.E
Shell & tube
H.E
Knocking(crank
shaft bearing)
Pay loader
engine
Pulse
Radiator
16
Partial
overhauling
Caterpillar
3306
Caterpillar
3306
17
Complete
overhauling
Caterpillar
3176
22
Radiator
Shell & tube
H.E
2.12 Analysis of work done in engineering section presented in bar chart
8
7
6
5
4
3
2
1
0
engine air lock
contermination
valve drop
engine knock
loss of
compression
Figure 2.12
Analysis of problem encountered
2.12.1 Engine air lock:
These is process in which air is trapped in the engine injectors or fuel line
Course
1. Diesel tank empty
2. Air in fuel filter.
2.12.2 Contamination
These is the process whereby water mix with oil under high temperature in the engine
Course
1. Compromised water seal at the top the engine block (ferrous seal)
2. Compromised engine block water way
3. Leakage in oil cooler
23
2.12.3 Valve drop
This is the process whereby the valves mostly the exhaust valve drop from the cylinder head
into the cylinder.
Course:
1. Weak valve spring
2. Valve key expand and weak due to high temperature
3. Exhaust back pressure
2.12.4 Engine knock
This is the process whereby the engine seize or grip after making some cracking sound,as a
result of metal to meter contact, generating heat and friction.
Course:
1. Crankshaft were to undersize
2. Shot engine oil
3. Crankshaft metal bearing melt and block the crankshaft oil way
2.12.5 Loss of compression
This is the process in which some percentage the compression gases (air fuel mixture) escape
from the valve or sleeve before expansion stroke of the cycle due to ware.
Course
1. Sleeve were
2. Piston ring were
3. Inlet or exhaust valve not properly seal
24
2.13 Boat operation section
Changing of the gland seal in the stuffing box of the port side propeller system
Date: 7 June 2015
A stuffing box is an assembly which is used to house a gland seal. It is used to prevent
leakage of fluid, such as water between sliding or turning parts of machine elements.
Boat specification
Owner
Akpos marine limited
Name
Kome iii
Propulsion system
Propeller double screw
Engine
Detroit,6 in line,(gm)
Use
Tugging
Gear box
Alison division
Draft
2M
Length
10m
Breath
3.5m
2.13.1 Procedure
Step one: we prepare the parking by carrying out the following
 We use rope to measure the circumference of the propeller shaft and cut the parking
using the measurement.
 We coat the strong wool like material of the parking with grease and use hammer to
compress it into shape.
25
Step two: we install the parking and test for leakage by caring out the following
 unfasten the coupling bolts and disengage the shaft
 install the parking
 Fasten the bolts, coupling and test for leakage by starting the engine.
2.13.2 Precaution taken
 We ensure that the bilge water pump is kept working to it maximum capacity to
prevent over flooding of the bilge.
 We ensure that the bolts were properly torque and inspect corrosion in the propeller
system.
The figure below show the propeller gland arrangement in auto cad to enhance
understanding
26
Installation of steering ram in kome iii boat
08, June 2015
Boat specification: The same as section 2.13
Ram is a hydraulic device or mechanism use in controlling the boat rudder to achieve a
change in direction of the boat.
The steering ram have two end connected to the rudder shaft and two opening one for supply
and the other for return, it is powered with the power of the captain in the wheel house.
2.14.1 Work procedure
The work follows this progression
 We assemble the steering ram with the rudder shaft through the bolt
 We put hydraulic in the system through the opening in the wheel house while opening the
order end of the pipe which connect the opening in the wheel house to the ram to allow
the incoming hydraulic to drive out the air in the system.
 We turn the wheel clockwise and anticlockwise severally until we found no air bubble
coming out of the opening and the ram hydraulic inlet.
 We assemble the host and test for effectiveness by turning to starboard and portside
rapidly, after confirmation, we kept the rudder neutral.
2.14.2 Precaution
 We ensure that the bolts are well torque and no air is trapped in the system
 I ensure that i use the hand rail and face the step case while climbing the step to go to the
wheel house
 We clean oil spill immediately it was spill to prevent accident
 We ensure that we put on complete personal protective equipment.
27
The steering ram is presented in the figure below (right) and the steering wheel showing the
opening where hydraulic oil is put into the system (left).
28
2.15 Summary of the work carried out in the boat operation section
S/n
Work
Course
Equipment
Remark
1
Alignment of barge at jetty
Grounding
2
Test running
Sea worthy test
Kome xii &
ii
Kome iii
Good
3
Test running
Sea worthy test
Kome xi
Good
4
replacement of greases
parking
Replacement of greases
parking
Engine room
flooded
Engine room
flooded
Kome i
Failure of
parking
Failure of
parking
6
Installation of new winch
7
Installation of new turbo
charger
Changing of gear box clutch
plate
Winch gear tooth
broken
Exhaust gas leakage
from turbo charger
Astern & ahead
engagement failed
9
Ger box maintenance
Poor engagement
Kome xiii
10
Installation of new ram for
rudder control
Ram loss
compression
Kome iii
11
Dry ducking
Boat under water
haul leakage
Kome vii
12
Propeller maintenance
Kome xi
13
Changing of turbo charger
system
Starboard propeller
wobbling
Engine room too hot
14
Propeller shaft replacement
Starboard propeller
bend
Kome iv
5
8
Kome iii
Kome xi
Kome i
Kome iii
Kome xi
15
Gear box maintenance
No engagement
Kome xii
16
Rewinding of winch wire
Wire corroded
Kome ii
29
Loss
efficiency
Allison
division gear
box
Twin dick
gear box
Turn around
maintenance
From pulse to
constant s
Pressure
Cloth plate
were
2.16 Welding department
In the welding section the following work was carried out
2.16.1 Tank fabrication
Date: 20, august 2015
Tank specification
Contractor
Use
Material
Length
Breath
Height
Paint
Mr Abii
Diesel storage tank
Mild steel
5m
7m
8m
Red
2.16.2 PROCEEDURE
The following procedure were taking orderly to build the tank
 We cut the material using the giving dimensions, marker and T square were use to
Mark out the dimension and oxy-acetylene gas was use to cut it out.
 We use Crain to jack the materials and tack it together to make it suitable for welding
 We wed the materials together using industrial electrode.
 We put water to test for leakage, some part was found leaking.
 We repeat the welding and conduct final test which show no leakage
 We smooth the edge and the welded part with mechanical filing machine.
 We apply two stage painting. first with black and lastly with red anticorrosion and anti
fouling paint
 We use Crain to jack the completed tank from the construction site to the using station
2.16.3 Precaution taking
 We ensure that we put on our welding glass and other personal protective equipment
required.
30
 Workers take milk and other supplement immediately after work
I was able to produce an auto cad design of the tank using the giving dimension and
specifications. The design is presented bellow.
31
2.17 Barge maintenance
A barge is a marine work plate form use for storage and moving of offshore equipment from
one point to another.
2.17.1 Barge specification
Name
Owner
Use
Average length
Average draft
Average breath
Work duration
Kome
Akpos marine
work platform and storage tank
26m
5m
15m
5 weeks
The barge has the following problem
 Man hole four and one is leaking and water is entering the barge through the leakage
 The fender is damaged
 The underwater haul is heavily corroded, the plate were weak and full of sea weed
 The anode has expired.
2.17.2 Procedure
 We use pump to pump out the water from the leaking manhole
 We sand blast the barge internal and externally to remove the sea weed, rust and detect
the weak metal.
 We connect welding machine neutral wire to the barge and get it ready for welding
 We use oxyacetylene gas to cut out the weak metal and replace them with new ones.
 We test for leakage by remove the barge from the grand and pushing it inside the water.
 We use the oxyacetylene gas to cut a 3m diameter pipe into two equal parts and weld it at
the side of the barge to serve as the fender.
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 We reconstruct the bitts and use filling machine to smoothing the rough edges produce
during welding.
 We use anti fouling and anti corrosion red paint, to paint the inner and the underwater
hull
 We install new zinc anode, after removing the old expired ones.
2.17.3 Precaution
 We ensure we put on our complete personal protective equipment required for each
section of the work
 We ensure we open the man holes for some hours to allow atmospheric air to vent the
confine space.
 Painters drink milk and other supplement immediately after work.
The figure bellow shows the image of the barge during maintenance.
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Summary of the work done in the welding department
s/n
1
Work
Tank fabrication
Use
Diesel storage
Curse
-
Equipment
Jetty tank
2
Scrabbling of vessel
Supply vessel
Corrosion
Contractor
3
Scrabbling of barge
Work plat form
Corrosion
Kome
4
Fabrication of bonk for barge
Work plat form
Collusion
Contract
5
Berge maintenance
Work plat form
Contract
6
Berge maintenance
Work plat form
7
Berge maintenance
Work plat form
8
Berge maintenance
Work plat form
9
Berge maintenance
Work plat form
Internal
corrosion
Under water
haul a
compromised
Internal
corrosion
Under water
haul
compromised
Internal
corrosion
Contract
Contract
Contract
Contract
2.19 Sand blasting, painting and crane operation department
The sand blasting, painting and crane section work in complement of the above section as
presented, before maintenance is carried out on barge, sand blasting must be carried out to
detect the weak metal and remove corrosion particles.
Crane is used to install ram on the barge, it is also use in lifting the plate for replacements of
the corroded ones.
Painting plays a vital role in preventing corrosion. The maintained barge and boat must be
painted inside out using marine special paint.
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CHAPTER 3
The challenges and the experience gained is presented department by department as follows
3.1 Engineering department
In the engineering department, I work alongside other technicians and apprentice to carry out
the following maintenance on marine diesel engines use for compressor, pump and boat
propulsion.
 Trouble shooting
 Minor and major engine overhauling
 Routine engine maintenance
In this department I gain experience on overhauling, trouble shooting, dismantle and engine
watch keeping.
3.2 Challenges
 The engineering department have many apprentice, thereby making work competitive
for me.
 Workers are over laboured due to lack of special tools and machines like overhead
Crain, pressure testing machines. Lifting and testing is done with the workers muscular
power.
3.3 Welding department
In the welding department, I worked alongside technicians and apprentice to carryout
industrial welding on work barge, torque boat and other marine equipment. We fabricate
tanks using electrode. Cut supply vessel and Berge into scrap using oxy-acetylene gas.
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3.4 Challenges
 The gas cylinder use for the work is been carried on the shoulder to the of work platform,
these, in most of the cases will have initially weaken the workers before the work even
began
 Welding and cutting of exterior part of the barge or boat is done offshore, any instability
can lead to man overboard.
3.5 Crain operation department
I experience how to use Crain to lift heavy object such as propulsion engine, marine work
pieces and boat for a dry dock. Loading an offloading of construction material was also
experienced.
3.6 Challenges
 Crain operation is dangerous any mistake in handling and load balancing or engine failure
can lead to the falling of the heavy object or capsizing of the Crain that can cause injury
and damage to the Crain or the object.
 Crain operation is delicate, incompetent operator like me cannot be allowed to operate
3.7 Boat operation
I worked with boat operators at the jetty to arrange and prepare barge for maintenance, I
experience the engagement and disengagement of barge from torque boat using winch and
different strategies of pulling out already grounded barge.
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3.8 Challenges
 Lack of relevant marine safety document like swimming identity card and basic
mandatory limited my experience to jetty operation.
3.9 Painting
I was able to interact with the painters, familiarise myself with marine painting after caring
out painting of the interior and exterior compartment of a barge, using red and black oxide of
the paint with the hardeners.
3.10 Challenges
 The odour of the paint is toxic and require worker to take some can of milk after work
 Most of the painters are on contract, and were not staff of Akpos marine.
These make it difficult to hold the roller and brush and carry out the painting my self
3.11 Sand blasting
I experience sand blasting of marine equipment such as barge, torque boat and service tanks,
using compress air and sharp sands
3.12 Challenges
Sand blasting is too dangerous to carry out for an inexperience person as little mistake can
inflict injuries on workers
3.13 Social skills acquired during the scheme
 I acquire social skills on how to handle contractor during marine logistic planning
 How to treat and manage workers to achive maximum productivity
 How to work safely and maintain good moral standard at work.
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3.14 General challenges encountered in the scheme
 The company is not paying me
 Segregation between me and the company apprentice in terms of work handling
 The cost of transportation is too high.
 The company lack proper orientation on siwes
 The company environment is not well equipped to face hazard and the waste dumping site
close to her environment make it unhealthy.
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CHAPTER 4
CONCLUSION AND RECOMENDATION
4.1 CONCLUSION
The aim of organising Siwes for student by the federal government and the school
administration was achieved as stipulated in the section 1.2 of this report.
Furthermore, the bar chart presented in figure 2.12 show that the major problem of the
engineering section of Akpos marine is valve drop.
4.2 RECOMMENDATION
My recommendation is on siwes and health saft environment of the industry base on the
problem encounter in the chapter three of these report and it is listed below.
4.2.1 Siwes
 The ITF or the school administration should organise a orientation programme for the
company before sending student to the company.
 The government should pay student their allowance monthly during the siwes programme
to encourage the student.
 Institute base supervisor should visit student every two month and comment in their log
book appropriately to keep the student focus
4.2.2 Health safety environment
1. The company should restrict waste disposer close to the gate and look for means to
remove the present ones. To enhance decency and unpolluted environment
2. Disposer of oil and non decomposable substance in the water should be prohibited
3. Waste bins should be position in the workshop and other strategic place to easy waste
disposer.
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REFERENCES
Bob-Manuel, K. D. H. (2015). Marine Diesel Engines I & II B.Tech Lecture notes,
Department of Marine Engineering, Rivers state university of science and technology,
(RSUST), Port-Harcourt, Nigeria.
Friday, B. S. (2012) Physics II B.Tech Lecture notes. Department of Physics, Rivers state
University of science and technology (RSUST), Port-Harcourt, Nigeria.
Frawma servicing (2014). Student industrial work experience scheme (record note) Marine
Service Company, Port-Harcourt, Nigeria
Paul ukah (2014).Technical report on student industrial work experience scheme.[online
serial].Available: https://www.academia.edu/829721. [Accessed: 9th September,
2015).
Akpos marine limited(2013). Home page. [Online serial]. Available: https://www.
akposmarine. com [Accessed: 2015, September 09].
Caterpillar 3304 manual (2010).Diesel engine manual.[online serial].Available:
https//www.gogle.com.[Accessed:10th September,2015].
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LETTER OF ACCEPTANCES
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