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Anemometer / Wind vane

A wind vane is an instrument that measures wind direction while anemometer measures wind speed.   PRINCIPLES OF WIND VANE AND ANEMOMETER The measuring principle of anemometer is simple: the stronger the wind blows, the faster the half-open plastic cups turn. The speed of the cross rotation determines the wind speed. The cup anemometer records the number of rotations per minute and thus the wind speed very accurately. Information obtain by wind vane and anemometer are converted and can be read directly form ship’s bridge.   HOW THE DATA IS CONVERTED                                                     Information generated by wind vane and anemometer are converted and can be read directly form ship’s bridge. Through advance technology, wind speed and direction can be seen directly through a display unit in the ship’s bridge and no need for manual calculation.

Torsional vibration damper .Diagram


Sulzer Reversing servo motor mechanism . Diagram


Electrical safety requirements for pump rooms on ships

Power supply : The electrical supply to the pump room must be protected by over-current devices, and the wiring must be properly installed and maintained. Lighting : Adequate lighting must be provided in the pump room, with emergency lighting available in the event of power failure. Equipment : Electrical equipment in the pump room must be approved by a recognized testing organization and properly maintained. Earthing and bonding : The pump room must have a proper earthing and bonding system to prevent electrical hazards. Fire protection : Fire protection measures must be in place, including automatic fire detection and fire suppression systems. Ventilation : Adequate ventilation must be provided in the pump room to ensure proper functioning of electrical equipment and prevent hazardous buildup of gases. Accessibility : The electrical equipment and wiring must be easily accessible for maintenance and inspection. Testing : The electrical equipment in the pump room must be regularly test

How to prevent wear down of liner?

Use Low Sulphur oil. Maintaining high jacket water temperature. Running Main Engine at normal sea low , avoid running at low loads. Increase LO supply so that piston and liner seizure will not take place. By using proper TBN oil and correct grade of oil By avoiding ingress of moisture in charge air 

Unsafe condition, Unsafe act , Near miss and Accident

  Unsafe condition Unsafe condition mean any condition that could cause undue hazard to life , limb or health  of any person authorized or expected to be on or about the premises. Unsafe act An unsafe act is when an individual who has both knowledge and control of an existing unsafe condition or action , but choses to perform the action or ignore the condition . Generally perform unsafe acts in an effort to save time and /or effort Near Miss A near miss , near hit or close call is an unplanned event that has the potential to cause , but does not actually result in human injury , environmental or equipment damage or an interruption to normal operation. Accident An Accident is an unintended , normally unwanted event that was not directly caused by humans , the term accident implies that nobody  should be blamed , but the event may have been caused by unrecognized or unaddressed risks