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
Inspection of liner:
.liner inspection .li Preparation: Safety precaution: i. Ladder should be properly hung ii. Safety harness must be worn iii. Adequate lighting must be arranged iv. Nothing should be hanging from overhead crane. Inspection procedure: With piston removed, or bring the … Continue reading →
Clover Leafing:
.clover leafing Clover leafing is a form of wear on cylinder liners due to high sulphur content in the fuel oil and when the supply of lube oil is not uniform around the radial bore of the liner.. Clover leafing takes … Continue reading →
Liner
.liner .liner material Material The cylinder liner is manufactured from Pearlitic Grey cast iron (Ni, Cr, Mo) alloyed with vanadium, titanium and molybdenum. Grey cast iron contains graphite which itself is a decent lubricant and the alloying elements of Grey cast … Continue reading →
Main engine unit survey and documents
.me survey .me unit survey .main engine survey 1. Planning 2. Tools Prepare tools. 2. Liner 3. Chain blocks 4. Eye bolts, shackles, wire sling and safety belt 3. Safety during crane operation 4. After arriving port 5. Removal … Continue reading →
M/E Alarms, safeties, trip
.me alarms and safety trips .me safety Different Engine Slow Down Situations In this situation the main engine will come to dead slow RPM i.e. below 30 RPM as the slow down protection gets activated. Following are different slow down … Continue reading →
Surging:
.surging .tcs .turbocharger surging .tc surging Indications of surging: Causes of surging: Consequences of surging: Minimizing the possibility of surging:
Types of turbines:
.turbine types .impulse .types of turbine Draw copt .copt Working principle In the impulse turbine the entire pressure drop of the stage is across the fixed blades which act as nozzles. These nozzles accelerate the steam to a high velocity. … Continue reading →
Turbocharger
.turbocharger .tc turbocharger washing in blower side and turbine side Blower side water washing Turbine side water washing procedure Grit Washing or Dry Cleaning of Turbocharger Aux Blower Tripped During Maneuvering:
Reflex type gauge glass:
.reflex Article link: http://www.altonashop.com/Products/reflex_glass_level_gauges.htm Working principle: Reflex level gauges working principle is based on the light refraction and reflection laws. Reflex level gauges use glasses having the face fitted towards the chamber shaped to have prismatic grooves with section angle … Continue reading →
Differential pressure transmitter:
Article link: https://instrumentationtools.com/differential-pressure-transmitter-working-principle/ Question: Q. Local gauge glass normal but remote level gauge showing high level, cause? Possible Reasons: Q. How to blow down DP cell sensing lines? Q. Boiler tube plugging: .btp .boiler tube pluging Procedure: Control: Boiler Auto … Continue reading →