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
Stern tube seal renewal procedure in-situ?
.stern tube seal renewal in-situ .stern tube seal renewal insitu Stern Tube Seal Renewal Procedure In-Situ Preparation and Safety Measures Safety Precautions Procedure Execution Preparation: Seal Renewal Steps: Post-Renewal: Post-Procedure Monitoring Add the following instructions to the Chief Engineer’s Night … Continue reading →
Stern Tube LO temp high / Running Hot
.stern tube temp high .stht Causes : Actions: iv) Cooler dirty – clean cooler v) Pump pressure low – changeover pump vi) Filter dirty – changeover to clean one.
Stern tube
Oil sealing: how oil loss due to seal failure can be restricted while on passage Under normal condition, seal activated through #3 sealing ring. (valve V3 & V4 normally open). If oil leakages take place, shut V3 & … Continue reading →
EKG
Propeller .propeller material Material Alloy Nominal Composition Stress(N/mm2) Nickel Aluminium Bronze 80Cu/10Al/5Ni/5Fe ±87 Manganese, Aluminium, Bronze 74Cu/13Mn/8Al/2Ni ±62 High Tensile Brass 0.5Mn/1Al/0.6Sn/Rem. Cu (25% alpha) ±42 Types of propellers: Classification by Number of Blades Attached Classification by Pitch of The … Continue reading →
Boiler Auto combustion Control:
.acc controller .boiler acc Description: Initially, MV=SV, PV1=C.SP1, PV2=CSP2, a ≈ b, c ≈ d.If steam demand ↑, MV↓O/P of R/A Master Controller ↑, c↑ , a↑c > d, d passes through LSS,so no change in CSP1,But a > b, … Continue reading →
Viscosity regulator
Viscosity Regulator or Viscotherm, is a device used to measure viscosity of the fuel oil before sending it to the engine. It is generally fitted at the outlet of the fuel oil heater. The regulator is connected with the heater … Continue reading →
Valve positioner
.valve positioner A positioner is a motion-control device which actively compare stem position against the control signal, adjusting pressure to the actuator diaphragm or piston until the correct stem position is reached. Relationship between the v/v steam movement and actuating … Continue reading →
What is a square root extractor?
.square root .sqr .sre The square root extractor is an electronic (or pneumatic) device that takes the square root of the signal from the flow transmitter and outputs a corresponding linear flow signal. Purpose of its use The square root … Continue reading →
Regulation 32 – Oil/water interface detector
oil tankers of 150 gross tonnage and above shall be provided with effective oil/water interface detectors approved by the Administration for a rapid and accurate determination of the oil/water interface in slop tanks and shall be available for use in … Continue reading →