Engr. Shafiul Bari
Marine Engineering Expert
Shafiul Bari is a seasoned Marine Engineer with extensive experience in ship design, maintenance, and marine propulsion systems. With a deep technical knowledge of ship engineering and a passion for advancing maritime technology, Shafiul shares practical insights and expert advice to help marine professionals and enthusiasts better understand the complexities of ship systems. Through his website, he aims to bridge the gap between technical theory and real-world application, fostering a community of informed and skilled maritime engineers. When not immersed in ship engines and technical manuals, Shafiul enjoys exploring the latest innovations in marine technology and mentoring aspiring marine engineers.
Articles by Engr. Shafiul Bari
Causes of motor running hot
.motor running hot 1. Electrical overload caused by excessive voltage supply or overwork by drawing more current will lead to overheating issues. As the motor works harder or under unusual load, heat will be the chief byproduct, leading to failure. 2. Low … Continue reading →
Preferential Trip:
.PREFERENTIAL TRIP .pref Preferential tripping in a Marine electrical distribution system are designed to disconnect non-essential circuits (e.g. Breakers controlling air conditioning, galley power, blowers, refrigeration etc.) in the event of partial overload or partial failure of the supply with … Continue reading →
Reverse power relay working:
.reverse power relay .rpr The Reverse Power Trip Relay is a crucial protective device used in electrical systems, particularly for generators. It operates based on the principles of Faraday’s law of induction and Lenz’s law. Working Principle Components and Structure … Continue reading →
Causes of Reverse Power
Reverse Power in Electrical Systems Reverse power is a condition in which power flows from the bus bar into the generator, contrary to the normal power flow direction. This phenomenon can occur due to various reasons and has significant implications … Continue reading →
Automatic Voltage Regulator:
.avr The key components in this AVR circuit are: Voltage Generation Voltage Regulation Output By continuously monitoring and adjusting the excitation current, the AVR maintains a stable output voltage from the alternator despite variations in load or other factors. This … Continue reading →
Star delta starter connection
.star delta Direct-on-line starters is the most commonly used, the most usual consideration being whether the generator and the distribution system can withstand the starting current. In the case of loads with high inertia (e.g. oil separators) the starting time … Continue reading →
Electrical
Arc Chute: Link: https://www.electricalclassroom.com/what-is-an-arc-chute/ Arc chute is a set of metal plates that are arranged in parallel and mutually insulated from each other, which can divide, cool and safely extinguish an electric arc. They are also known as arc splitters … Continue reading →
Classification of Marine Scrubbers
On the basis of their operation, marine scrubbers can be classified into Wet and Dry scrubbers. Dry scrubbers employ solid lime as the alkaline scrubbing material which removes sulphur dioxide from exhaust gasses. Wet scrubbers use water which is sprayed … Continue reading →
Lube oil
Lube oil sampling procedure? Records for Sample Avoid sampling from places where the oil may be stagnant or have little or no flow, such as sumps, auxiliary smaller pipelines, purifier suction or discharge lines, drain cocks of filters, coolers etc. … Continue reading →