Category Archives: Marine Technology

Ship Rudder

Posted on January 17, 2019 by Marine Study
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Accidental Agrounding: Chief Engineer’s Responsibility

Posted on January 10, 2019 by Marine Study
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Checking Performance of Main Engine

Posted on January 10, 2019 by Marine Study
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Isolation of One Unit of Main Engine

Posted on January 10, 2019 by Marine Study
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Ship Motons and Stresses

Posted on January 4, 2019 by Marine Study

Ship Motion and Stresses from Mohammud Hanif Dewan MIMarEST, MRINA

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F.O. Purifier

Posted on December 30, 2018 by Maklub Al Mostofa

What is purifier and why we use it on board? As the name implies, Purifier purifies fuel oil used on board. It is a machine that separates impurities from fuel oil. Impurities can be both solid and liquid/water. Why there … Continue reading →

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Closed loop control Main Engine Jacket Cooling System

Posted on November 19, 2018 by Marine Study

By Mohammed Ismail

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Ship Structural Components

Posted on November 9, 2018 by Marine Study

Ship Structural Components from Mohammud Hanif Dewan MIMarEST, MRINA

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Ship’s Transverse Stability

Posted on October 19, 2018 by Marine Study

Ship's Transverse Stability from Mohammud Hanif Dewan MIMarEST, MRINA

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Effects of Impurities in Fuel Oil

Posted on July 31, 2018 by Marine Study

Q. Write brief notes on the adverse effects that a fuel containing high value of the following may cause: (a) Viscosity (b) Density (c) Sulphur (d) Corodson Carbon Residue (e) Asphaltene (f) Vanadium & Sodium (g) Ash (h) Water (By … Continue reading →

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Scavenging and Turbocharging (Questions & Answers)

Posted on May 18, 2017 by Marine Study

By Maklub Al Mostofa Q. What is scavenging? Name the types of scavenge used for large two stroke engine. Describe the advantage of Uniflow scavenging. SCAVENGING: It is the removal of residual exhaust gas and its replenishment with fresh air in … Continue reading →

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Enclosed Space Entry

Posted on May 11, 2017 by Marine Study

By Maklub Al Mostofa Enclosed Space: For the purpose of this Guide, an ‘Enclosed Space’ is defined as a space that has the following characteristics: Limited openings for entry and exit. Unfavourable natural ventilation. Not designed for continuous worker occupancy … Continue reading →

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The Origin of Shipping & Insurance

Posted on November 11, 2016 by Marine Study

By F. R. Chowdhury Shipping is one of the oldest businesses in the world. Risk management and insurance is also equally old business. They are closely linked with one another. In fact the development of insurance took place in support … Continue reading →

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Wärtsilä EnergoProFin Propeller

Posted on March 30, 2016 by Marine Study

Image Credit: Wärtsilä The efficiency of the ship’s propeller is an important part of a ship’s overall propulsion efficiency. The Wärtsilä EnergoProFin has become a popular retrofit solution to improve the propulsion efficiency and hence improve the fuel efficiency of … Continue reading →

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Ignition Quality Parameters of Slow Speed Diesel Engine

Posted on March 7, 2016 by Marine Study

Ignition quality parameters: Energy Viscosity Maximum firing pressure. 4. Injection delay 5. Ignition delay . 1. Energy comparison • The injection pump is a volumetric pump • The higher the density the more energy it contains per volume unit • The … Continue reading →

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High Pressure Water Mist (Hyper Mist) System

Posted on January 18, 2016 by Marine Study

Mandatory in passenger ships with GT > 500 and cargo ships with GT >2000, for fire extinguishing in machinery spaces of category A with volume > 500 m3 (IMO MSC/Circ.913). System introduced as an alternative to the Halon systems (prohibited in 1994) … Continue reading →

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Main Engine Air Starting System

Posted on October 6, 2015 by Marine Study

By Mohammed Ismail

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Star-Delta Starting of Three Phase Motor

Posted on October 6, 2015 by Marine Study

By Mohammed Ismail

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DIESEL ENGINE CRANKCASE EXPLOSION

Posted on September 27, 2015 by Marine Study

INTRODUCTION: For any fire to begin, the fire tringle needs to be completed. To complete a fire tringle there must be present of a combustible material, oxygen or air to support combustion and a source of heat in proportional ratio … Continue reading →

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Diesel Engine Scavenge Fire

Posted on September 25, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

INTRODUCTION:  For any fire to begin, the fire tringle needs to be completed. To complete a fire tringle there must be present a combustible material, oxygen or air to support combustion and a source of heat at a temperature high … Continue reading →

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Cylinder Lubrication System

Posted on May 31, 2015 by Marine Study

Cylinder lubrication in a low-speed main propulsion diesel engine: Cylinder lubrication For marine diesel engines operating on residual fuels containing sulphur, cylinder lubrication must generally serve the following purposes: ■ Create and maintain an oil film to prevent metal to … Continue reading →

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Heat Treatment Process

Posted on May 22, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Heat Treatment Process from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Problems in Boilers

Posted on May 22, 2015 by Marine Study

Image Credit:www.globalspec.com   Some common boiler problems are described below: Fires Cleanliness of the heat recovery surfaces after the boiler can often be judged by observing the gas pressure differential above and below. Any significant rise in this value should … Continue reading →

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Fuel Injector of Diesel Engines

Posted on May 21, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Image Credit: www.riceweightloss.com Older loop scavenged engines may have a single injector mounted centrally in the cylinder head. Because the exhaust valve is in the centre of the cylinder head on modern uniflow scavenged engines the fuel valves (2 or … Continue reading →

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The Cylinder Liner

Posted on May 18, 2015 by Marine Study

The Cylinder Liner of Diesel Engines from Marine Study

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Boiler Water Treatment

Posted on May 12, 2015 by Marine Study

In the draft “Code of practice for the design, safe operation, maintenance and servicing of boilers”, a requirement is made for regular water-quality monitoring of both limited-attendance boilers and unattended boilers.

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Carbon Steel Alloys

Posted on April 30, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Image Credit: Taybro Alloys Stainless Steel Carbon is the most important component in commercial steel alloy. Increasing carbon content increases hardness and strength and improves hardenability. But carbon also increases brittleness and reduces weldability because of its tendency to form … Continue reading →

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Metallurgical Testing

Posted on April 22, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Image Credit: www.upc.edu Metallurgical Testing from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Metallurgical Testing

Posted on April 16, 2015 by Marine Study

Metallurgical Testing from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Marine Growth Protection System (MGPS)

Posted on April 12, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Marine Growth Protection System (MGPS) from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Properties of Fuel Oil and Bunkering Procedure

Posted on April 11, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

By Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Lubrication

Posted on April 9, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Properties of Lubricats and Lubrication from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Gear Pumps

Posted on April 9, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Gear Pumps from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Engine Bearings

Posted on April 6, 2015 by Marine Study

By Marine Study

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Ship Construction (Structure Part)

Posted on April 5, 2015 by Marine Study

Ship Construction (Structure Part) from Marine Study

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Boiler Mountings

Posted on April 4, 2015 by Marine Study

By Engr. Omar Sadath

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Introduction of Boilers

Posted on April 4, 2015 by Marine Study

By Engr. Omar Sadath

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Pump and Positive Displacement Pumps

Posted on April 1, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Positive Displacement Pumps from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Classification Societies

Posted on March 25, 2015 by Marine Study

2 classification societies from Sulaiman Oladokun

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Emission from ship

Posted on March 23, 2015 by Marine Study

Emision from ship from Oladokun Sulaiman

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Watch keeping duties , responsibilities and cargo documentation

Posted on March 23, 2015 by Marine Study

Watch keeping duties , responsibilities and cargo documentation from Oladokun Sulaiman

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STCW

Posted on March 23, 2015 by Marine Study

Stcw from Oladokun Sulaiman

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Corrosion in Metals

Posted on March 22, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Corrosion in Metals from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Ship Construction

Posted on March 22, 2015 by Jayan Pillai MSc CEng FIMarEST MRINA MIBM

Ship Construction by Jayan Pillai from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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“Technology Innovations for Cost- effective Energy Efficiency Measures”

Posted on March 16, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Technology Innovations for Cost- effective Energy Efficiency Measures from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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“Materials Used in Shipbuilding”

Posted on February 28, 2015 by Marine Study

MATERIAL USED IN SHIP BUILDING  

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Metallurgy

Posted on February 28, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Metallurgy from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Ship Form Coefficients

Posted on January 29, 2015 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Ship Form Coefficients from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Marine Engineer Officer Class- 1 (Unlimited) CoC Oral Exam Preparatory Course Syllabus as per IMO Model Course 7.02

Posted on November 16, 2014 by Marine Study

Department of Shipping, Bangladesh approved MEO Class- 1 (Unlimited) CoC Oral Exam Preparatory Course as per IMO Model Course 7.02 from Mohammud Hanif Dewan

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Marine Engineer Officer Class-2 & 1 (Unlimited) CoC Exam Preparatory Course Syllabus as per IMO Model Course 7.02

Posted on November 16, 2014 by Marine Study

Department of Shipping, Bangladesh approved MEO Class-2 & 1 (Unlimited) CoC Exam Preparatory Course as per IMO Model Course 7.02 from Mohammud Hanif Dewan

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Marine Engineer Officer Class-3 CoC Exam Preparatory Course Syllabus as per IMO Model Course 7.04

Posted on November 16, 2014 by Marine Study

Department of Shipping, Bangladesh approved MEO Class-3 CoC Exam Preparatory Course as per IMO Model Course 7.04 from Mohammud Hanif Dewan

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Two Years Pre-sea Course Syllabus of Department of Shipping, Bangladesh

Posted on November 16, 2014 by Marine Study

02 Years Pre-sea Course Syllabus of Department of Shipping, Bangladesh from Mohammud Hanif Dewan

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Marine Electrical Hazard and Zone

Posted on November 16, 2014 by Marine Study

Marine electrical hazard and zone from Oladokun Sulaiman

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Electrical safety and protections

Posted on November 16, 2014 by Marine Study

Electrical safety and protections from Oladokun Sulaiman

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Marine Purifier

Posted on November 16, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Marine Purifier from Mohammud Hanif Dewan

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MARPOL Annex I and Oily Water Separator

Posted on November 16, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

MARPOL Annex I and Oily Water Separator from Mohammud Hanif Dewan

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Fresh Water Generator

Posted on November 16, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Fresh Water Generator from Mohammud Hanif Dewan

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Fire Fighting and SOLAS Requirements

Posted on November 11, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Fire Fighting and SOLAS Requirements from Mohammud Hanif Dewan

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Shipboard High Voltage- Safeties and Applications

Posted on November 11, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Shipboard High Voltage- Safeties & Applications from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Surveys of Merchant Ships

Posted on November 11, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Surveys of Merchant Ships from Mohammud Hanif Dewan

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Marine Steering Gear and SOLAS Requirements

Posted on November 11, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Marine Steering Gear and SOLAS Requirements from Mohammud Hanif Dewan

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Marine Refrigeration and Air Conditioning

Posted on November 11, 2014 by Marine Study

Marine Refrigeration and Air Conditioning from Mohammud Hanif Dewan

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Centrifugal Pump

Posted on November 10, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Centrifugal Pump from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Basic Control Theory

Posted on November 10, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Basic Control Theory from Mohammud Hanif Dewan

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Ship Construction- Ship Dimensions

Posted on November 10, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

By Mohammud Hanif Dewan

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MARPOL Annex IV & Sewage Treatment Plant

Posted on November 10, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

MARPOL Annex IV & Sewage Treatment Plant from Mohammud Hanif Dewan  

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Marine Diesel Engine Exhaust Gas Emissions Control Technologies

Posted on November 9, 2014 by Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

Marine Diesel Engine Exhaust Gas Emissions Control Technologies from Mohammud Hanif Dewan, IEng, IMarEng, MIMarEST, MRINA

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Boiler Survey

Posted on November 3, 2014 by Marine Study

BOILER SURVEY Introduction   Boilers are inspected to maintain the regulatory requirement. Regular internal and external examination during such survey constitutes the preventive maintenance schedule the boiler goes through to have a safe working condition.

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Responsibilities of a Chief Engineer for a ship in Dry-Dock

Posted on October 26, 2014 by Marine Study

                                         Drydocking is one of the most important activities that a vessel may come across. Hence a good planning and co-ordination … Continue reading →

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Bunkering Procedure

Posted on October 26, 2014 by Marine Study

Bunkering Procedure The actual Bunkering operation is carried out with bunker checklists. In this article, emphasis is made on the checklists, safety precautions, SOPEP locker & SOPEP equipments, temperature & density correction to calculate the quantity of oil bunkered. Formula … Continue reading →

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MARPOL Annex VI- Emissions Control Development

Posted on October 25, 2014 by Marine Study

Introduction: IMO ship pollution rules are contained in the “International Convention on the Prevention of Pollution from Ships”, known as MARPOL 73/78. On 27 September 1997, the MARPOL Convention has been amended by the “1997 Protocol”;, which includes Annex VI … Continue reading →

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Bismilla-hir-Rahma-nir-Rahim

Posted on October 24, 2014 by Marine Study

 Surah Alaq: Meaning in English: Recite with the name of your Lord Who created, He made man from the clot of blood, Recite, for your Lord is the Most Generous, Who taught writing by the pen. Taught man what not. … Continue reading →

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