Ship Operation

Variable injection timing

What’s the need to change Injection Timing? – Variable Injection Timing

Have you wondered, whats is the use for variable injection timing or “VIT” if we always learn and told to avoid early and late ignition ! Why am i asking this question? Variable injection timing is a process to alter ignition timing early or late for affecting engine performance. We all know early ignition can […]

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Tappet clearance

Tappet Clearance – Requirement, Measurement & Adjustments

The hot topic among marine engineering students and seafarer preparing for the exam has been of Tappet Clearance. The clearance in between the valve stem and rocker arm is termed as tappet clearance. They facilitate the operation of rocker arm in a four-stroke engine; by providing sufficient space for thermal expansion. Tappet clearance is taken

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Rotocap

How Rotocap Works? – Theory, Working and Function

Exhaust valves are subjected to high temperature and shoot. This can sometimes lead to valve seizure, heavy shoot deposits, and local Overheating. A Rotocap is used to protect the exhaust valve from above concerns extending its overall life. It is fitted on the exhaust valves of auxiliary or medium-speed engines. Main engines have rotating vanes

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Centrifugal pumps

Centrifugal Pumps – Working, Types, Application & Repair

Centrifugal pumps are one of the most commonly used pumps on the earth with ever growing applications. They are simple and reliable machine of any machinery space. On ship they are the simplest of machinery installed in the engine room. They are unique for its high flow rate at variable dynamic head with less repairs.

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Boiler water treatment

Boiler Water Treatment in Marine Boilers

The quality of boiler water is an integral part of increasing boiler efficiency. Unchecked contaminated boiler water can lead to problems such as corrosion and scale formation. Furthermore, it can also affect its performance, life, and cost of maintenance jeopardizing boiler efficiency; making boiler water treatment a key in the marine industry. To ensure its

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inert gas system alarms

What are The Alarms and Trips of Inert Gas System?

The inert gas system with its alarms and trips is compulsory safety equipment on oil tankers under the SOLAS Convention; Which also covers the rules and operation of the inert gas system to prevent any explosion on tanker ships. Chapter two (1/4.5.5 and 2/16.3.3) of SOLAS make it compulsory for tanker ships of above 8000

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