tag:blogger.com,1999:blog-38580581678050496032024-03-28T20:29:53.348-07:00Marine InfoSiteMarine InfoSite focus on providing information useful for Mechanical / Marine Engineers to help them in their daily hard work with technical articles and Notes/Study material that experienced professionals and novice mechanics share for those just beginning their careers.Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.comBlogger65125tag:blogger.com,1999:blog-3858058167805049603.post-9911569380667934572017-12-05T07:54:00.004-08:002017-12-13T04:56:43.753-08:00Working Principle of Fresh Water Generator on Board Ship
Fresh water generator(FWG) is one of the essential machineries on board ship, After-all a large amount of fresh water is utilized on ship every day. On board ship Fresh water is used for the most part by huge boilers having steam turbines as main propulsion or cargo pumps driven by turbines. They all in all record for 30+ Tons of fresh water every day separated from the day by day Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com1tag:blogger.com,1999:blog-3858058167805049603.post-5440993375015671232017-11-06T07:54:00.000-08:002017-11-06T08:24:16.011-08:00Ship side valve Functions, Definitions and Specification
p { margin-bottom: 0.25cm; line-height: 120%The valves on the
side of the ship / Ship-side valves on the top refer to valves that
are connected to the hull, without having anything to medium with the
valve on the side of the ship. During the dry dock, the valves are
checked by the dry dock personnel, while the work of the ship's
engineers is to check the internal valves. For total Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com1tag:blogger.com,1999:blog-3858058167805049603.post-57469884062898583892017-09-25T22:58:00.000-07:002017-09-25T22:58:13.819-07:00How to do crude oil washing on ships in 10 easy steps
COW or Crude Oil Washing cleans cargo tanks with jets of high pressure oil when the ship is unloaded. The crude oil is pumped through the washing machines to the jets and serves as a cleaning agent which is then pumped to land with the load/Product Discharge. It has been found that crude oil is more reliable washing medium than water. The washing / dissolving effect results in heavy, waxy andAmithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com1tag:blogger.com,1999:blog-3858058167805049603.post-21413827292890101922017-08-22T21:32:00.000-07:002017-08-31T16:43:15.387-07:00How inert gas is produced on board ship?
The Inert gas is produced in the IGG by the combustion of fuel with air. Marine diesel oil (MDO) or MGO is drawn from the storage tank and pumped through a filter to the main burners. A blower delivers the air necessary for combustion.
Oil and air is mixed in the correct proportion in an air-atomizing burner, which is ignited by the pilot burner. The fuel-air ratio and the oxygen content of Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-10273863783682290982017-07-30T12:18:00.000-07:002017-11-09T11:53:07.556-08:00 How to apply for marine engineering | Admission
A Naval/Marine engineer has too many tasks and duties to take over. A
marine engineer has all the functions and marine engines to check. In
short, a naval engineer is a person who deals with everything related to
the ship, from small things to big issues. Now the responsibility of
ship engineers is not only related to ships, but also must ensure the
safety of the crew and sailors.
Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com1tag:blogger.com,1999:blog-3858058167805049603.post-41972770278718067282017-07-18T10:25:00.000-07:002017-07-18T10:25:06.293-07:00Hard to get a job as TME or Deck Cadet ? | Getting started on job hunt
For
the past few years, I have been noticing how difficult it has been to
get a job as trainee marine engineer or deck cadet on ship after
completing marine engineering or nautical science course even from a
well recognised maritime institute. The main reason behind this would be
the approval of so many substandard institutions by the government in
recent years, because of which theAmithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com2tag:blogger.com,1999:blog-3858058167805049603.post-37057560971850606162017-07-17T07:32:00.001-07:002017-07-17T07:32:25.149-07:00 How is Marine Engineering as a career? | Explained
Transport and transportation are the backbone of modern global economic
outlooks and global prosperity. Ships are what the world traffic is
based on, which account for 90% of the total movement of fresh products
in the world than any other transport accounts. It Transmits
solutions, food, medical care and living conditions, chemicals, oil,
fuel and other loads that are Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com3tag:blogger.com,1999:blog-3858058167805049603.post-36855711457195377232017-06-15T23:19:00.003-07:002017-06-15T23:19:56.598-07:00Properties And Working System Of Marine Fuel Oil
Properties Of Marine Fuel
Density:
This Is Described As The Weight Of A Unit Volume Of A Liquid.
The Unit Is Kg/ M3.
The Density Is Measured At A Standard Temp., Of 150c As It Varies With The Temp.
If Density Is Taken At Different Temp., A Correction Factor Is Applied To Ascertain Correct Density At That Temp.
Reciprocal Of Density Is Specific Volume.
This Is Important Property For Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-34788520512365612132017-06-14T05:24:00.000-07:002017-06-14T05:24:47.403-07:00Basic concept on Ship stability and free surface area
Stability Of Ships
Two Principal Forces Which Act On A Ship Floating Freely Are – Weight & Buoyancy.
For The Ship To Float, It Must Displace It’s Own Weight Of Water.
Then To Be In Equilibrium Condition, The Centre Of Weight & The Centre Of Buoyancy Must Be Vertically In Line.
External
Or Internal Forces Can Move The Ship In Either Transverse Direction Or
LongitudinalAmithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-11523342163762274142017-06-12T02:48:00.001-07:002017-06-13T08:03:07.342-07:00Overhaul and Repair of a Marine Turbocharger
Introduction
The turbocharger is a very sensitive device; It must be treated with
caution. It is very important to know the detailed step by step, to
disassemble and in this article we will discuss some safety measures
that must be taken before and during the dismantling process.
A
turbocharger has a turbine on one side and a compressor on the other.
The disassembly should always keep Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-21913471255111923762017-06-07T09:20:00.001-07:002017-06-07T09:20:41.273-07:00What is marine boiler and Boiler system on oil tankers.
A boiler is a closed pressure vessel, in which water vapor is produced from distilled water / feed water. All boilers have a furnace or a combustion chamber in which fuel is combusted to release energy. Air is provided in the boiler furnace for assisting the combustion of the fuel. A large clearance between the combustion chamber and the water allows the transfer of combustion energy to the Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com3tag:blogger.com,1999:blog-3858058167805049603.post-1946794623797076172017-06-05T09:25:00.001-07:002017-06-05T09:25:56.745-07:00General arrangement of IG Plant, Production and Deck Distribution System
The 3 elements necessary for combustion are : 1. Fuel(hydrocarbon
vapour), 2.Heat(Source of Ignition), 3.Air(Oxygen); Oil tanker is
basically meant for carriage of petroleum products/crude oil, thus fuel
is available in plenty on board. Heat includes various sources of
Ignition; these are also plenty on board from boilers, generators, hot
work, galley, smoking etc. Air is Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-18839109202805755252017-06-03T12:14:00.000-07:002017-06-03T21:52:58.637-07:00What are Centrifugal pump? Its Operating principle | Explained
Centrifugal pump is a machine used to convert mechanical energy into
pressure energy by utilizing centrifugal forces with radical outward
flow. It is the most common type of pump used world wide for various
section such as agricultural, sewage, power generation and shipping. It
is a subcategory of kinetic pumps and based on the principle of forward
vertex flow, which states that when a Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-46670347006005302642017-06-01T10:09:00.004-07:002017-06-01T14:35:22.035-07:00Rescue Boats and Survival Crafts.
A rescue boat is a boat designed to rescue persons in distress and
marshal survival craft. A Survival Craft is a craft capable of
sustaining the lives of persons in distress from the time of abandoning
the ship. Passenger ships of 500 tonnes gross and over shall
carry at least one rescue boat which complies with the regulations, on
either side of the ship. Passenger Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-60488122809086966392017-05-30T08:35:00.001-07:002017-10-16T21:29:15.344-07:00Difference between VIT & Super VIT
Modern engines MAN B & W low speed 2-stroke have large Super VIT
mechanism to lower the fuel injection and increases the maximum pressure
loads, which optimize fuel consumption. But this lead to a another
question " Was there a normal vit before super vit ?", is there any
major significance of super in VIT ?
Back in the days
of conventional VIT, A time-variable injection is Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-88450403096529759792017-05-24T05:09:00.005-07:002017-05-24T05:09:56.757-07:00Refrigeration, Air conditioning system and ventilation
Refrigeration: is a process in which the temperature of a space or its contents is reduced to below that of surroundings.
Uses of Refrigeration:
1. Domestic fridge rooms on ships for preserving foodstuffs for the crew.
2. Accommodation air-conditioning system.
3. Reefer control air dryers in engine room.
4. Refrigeration is used in the carriage of some liquefied gases like LPG and LNG.
5. Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com2tag:blogger.com,1999:blog-3858058167805049603.post-80440840311206498192017-05-23T01:58:00.002-07:002017-05-23T01:58:43.979-07:00STCW & SHIP FIRE PREVENTION
FIRE TRIANGLE: IF ANY ONE SIDE OF “FIRE TRIANGLE” IS REMOVED, FIRE WILL BE EXTINGUISHED.
METHODS OF FIRE FIGHTING: THERE ARE FOUR METHODS OF FIGHTING FIRE
SMOTHERING – REMOVING THE AIR.
STARVING - REMOVING THE BURNING MATERIAL FROM THE SURROUNDING.
COOLING – REMOVING THE HEAT.
INHIBITING – RETARDATION OF THE COMBUSTION REACTION.
Types of fire
In the European Standard "Classification Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-66114162241128928952017-05-17T13:15:00.000-07:002017-05-17T13:15:18.678-07:00Reefer (refrigeration) ship system, Working and cargo Refrigeration
A reefer ship is a cargo vessel that specializes in carriage of cargo that requires to be maintained at a temperature other than ambient temperature. Reefer ships can carry any frozen or cooled cargo including meat, fish, fruits, vegetables. The temperature range is -30 to +12 deg C depending on the type of the cargo.
A reefer ship design incorporates more pipelines than those on a tanker;Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-16040079104051409342017-05-16T06:25:00.000-07:002017-05-16T06:25:09.268-07:00Rudder angle indicator | Definition, Working and Circuit Diagram
A device to display the current position of the rudder installed in
the control house of the bridge. In the angle indicator system Rudder is
independent of the steering system and is only for the display. There
is an IMO requirement which states regardless of the steering control
system there must be installed steering indicator system installed on
board. The specification of the Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-78375224745107973772017-05-12T08:16:00.000-07:002017-05-13T03:46:08.211-07:00what are the different types of ship | Ship construction
There are many different types of ships, and the differences are mostly based upon the type of cargo the ship transports. According to the study the typical layouts of the main type of Merchant Ships are:
a) General Cargo Vessels (being phased out).
b) Bulk Carriers.
c) Tankers.
d) Container Vessels.
e) Passenger Vessels.
f) Ro-Ro Vessels.
There are Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-73364059707770612262017-05-10T11:52:00.001-07:002017-05-10T11:53:49.767-07:00Merchant Navy: Agents, Money, Cheating and fraud
The merchant navy, which is a great and attractive profession, has
become a idle haunting grounds for fraudulent agents and making huge
money from exploiting the poor and the one most needing the job. This
entire impression in the entire society is emerging that the merchant
navy means the Scam,money launderer and agents' fraud. All those who
want to join the merchant navy Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com3tag:blogger.com,1999:blog-3858058167805049603.post-74081289880218883222017-05-09T12:21:00.000-07:002017-05-09T12:28:05.288-07:00A,B,C,D In Ship Terminology
A
Access Holes – Holes cut in the ship’s structure to permit entering or leaving various compartments.
After perpendicular – A vertical straight line at or near the after edge of the rudder post
Amidships – At the midship section of the ship
Accommodation ladder – a portable ladder on a ship’s side for people boarding from small boats or from a pier.
Aft – Near or towards the stern of theAmithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-90427394703035547922017-05-08T11:01:00.000-07:002017-05-08T11:01:07.411-07:00D.P Vessel | What it mean,Do and how it work?
D.P Vessel stands for dynamic positioning vessel which maintains its
position (fixed location or predetermined track) by means of active
thrusters. These vessels does not need anchors to dock and can stay
fixed to any position on the sea based on satellite g.p.s signals with a
precession of 99.9% making it more safer and reliable. The advantages
fully operated by DP ships include the Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-85782541750329064762017-05-06T06:41:00.000-07:002017-05-06T06:44:51.209-07:00Unmanned machinery space| essential requirements,Safety precautions and checks
UMS
Stands for Unmanned or Unattended machinery space. The sole purpose of
UMS is to ensure safe and efficient working of all machineries
on board ship under all circumstances.
UMS ships in
recent years has increased rapidly. The control systems are much more
reliable than they were when first applied to ships. Most owners are
understanding the need for training of their crews to Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0tag:blogger.com,1999:blog-3858058167805049603.post-21866211699280276742017-05-04T13:12:00.001-07:002017-05-04T13:12:15.005-07:00What is stern tube? its working and function
The Stern tube is a narrow hole in the hull structure at the rear end of the ship/boat that connects the propulsion shaft and the engine and the propeller. Purpose of Stern tube is to support the shaft. It forms the after bearing for the propeller shaft and to make water tight joint/gland where the shaft passes through the hull.
Two types of stern tubes are in common use, one with water Amithttp://www.blogger.com/profile/00817638644137054423noreply@blogger.com0