To reduce sewage’s contribution to marine pollution, the IMO spearheaded the very first global environmental project. Changes in both technology and policy have been steadily accruing over the past century, and this trend will only accelerate. Raw sewage being dumped into the ocean poses a health risk to marine life. Oxygen depletion and visual pollution…
As the size of vessels continues to grow, so does their demand for power, which means that more powerful engines and other pieces of equipment will need to be installed. The larger size and increasing need for power necessitate the use of higher voltages on board, which enables the energy to be distributed throughout the…
The Sulzer RT-flex engine is essentially a standard Sulzer RTA slow-speed two-stroke marine diesel engine except that, instead of the usual camshaft and its gear drive, fuel injection pumps, exhaust valve actuator pumps, reversing servomotors, and all their related mechanical control gear, the engine is equipped with a common-rail system for fuel injection and exhaust…
The remote control system for the main engine is intended for use in the wheelhouse, the engine control room (ECR), and on the bridge wings for the purpose of controlling the engine by means of a combined telegraph and manoeuvring lever. The Engine Manoeuvring System (EMS), which is interfaced to the Engine Control System (ECS),…
The evaporation of water into a gas results in the production of steam and in order for the process of vaporization to take place, the water molecules need to be provided with an adequate amount of energy so that the bonds that hold them together (hydrogen bonds, etc.) may be severed. The term “latent heat”…
It is imperative that the water level in a steam boiler be carefully managed in order to guarantee the production of high-quality steam in a manner that is risk-free, resource-friendly, and at the appropriate pressure. Heat is produced by the combustion of fuel in a furnace, while waste heat from the main engine can also…
Onboard vessels the most used types of valve actuators are the pneumatic ones and they are use for a numerous numbers of applications like: feed water valves, steam valves for tank heating, steam valves for different heaters, purifier’s 3-way valve etc. These are actuators are fairly cheap compared with other types, easy to adjust and…
The lifeboat is constructed of fire-resistant polyester resins and fiberglass. The hull, inner hull, canopy, and roof are all individually moulded in one piece. The area between the hull and inner hull will be filled with synthetic foam for buoyancy, which will keep the lifeboat floating and upright even if it is holed below the…
I believe that many of you have heard about PID, Temperature Control Valve (TCV), valve controller, step up controller etc. onboard vessel during your career. I know from my experience that many of the young engineers encounter problems to understand what exactly are those machinery items and how did they work. So, in this post…
We all know how important engine room piece of equipment is the Fresh Water Generator (FWG), as it converse seawater into freshwater by vacuum distillation for the supply of high quality freshwater for domestic and process utilization. About this equipment I have written a previous post which can be found by following this link. A…