Propeller cavitation is a common issue that can affect the performance of boats and ships. Cavitation occurs when the pressure around the propeller drops so low that water vaporizes, forming bubbles that collapse and cause damage to the propeller blades. This can lead to reduced speed, increased fuel consumption, and even damage to the propeller…
Marine plywood is a specialized type of plywood that is designed to withstand exposure to water and moisture. It is often used in boat building, docks, and other outdoor applications where water resistance is critical. Marine plywood comes in different grades, each with unique properties and characteristics that make it suitable for specific applications. In…
Marine pollution has become a critical concern globally, with ships being a significant source of pollution in oceans and seas. One of the primary contributors to pollution by ships is the exhaust gas emissions produced by their engines. These emissions contain harmful substances like sulfur oxides (SOx) and nitrogen oxides (NOx), which are detrimental to…
As we progressed towards innovation in the late 1960s, the size of oil tankers rapidly increased due to high demands, thus increasing also the incidents of explosions on tanks. The explosions were due to the ignition of flammable vapors in the tank’s atmosphere. The ignition source in many cases was the static electricity charge that…
Engine room watchkeeping is a continuous way for the watch to monitor and attend to the engine room and be able to rectify and troubleshoot problems that may occur anytime. Unfortunately, this is only applicable to conventional ships in which UMS or Unattended or Unmanned Machinery Space system is not yet installed. UMS is an…
Just like most of the equipment, tanks also have some limited pressure range to be followed for it not to be devastated. Excessive tank pressure and vacuum can surely cause serious problems or damage to the vessel’s structures. Generally, most of the tanks are normally designed to operate within the 200-1200 mmAq pressure range. Any…
A critical component to avoiding environmental or economic damage during a marine catastrophe is the ability to respond swiftly and appropriately in the aftermath of an accident to save all or a section of marine property that is in peril. Marine salvage is the saving of a ship, its cargo, or any other marine property…
Have you ever seen a boat at a boat show or even in a marina where there are no outboard motors or propellers mounted when you look at the back of the boat? Consequently, how do these boats move without any of these? These boats employ water-jet propulsion systems and are situated at the stern…
Have you ever wondered what the interior of a commercial ship hull looks like? What might be the different subdivisions, tanks, and so on? The aft peak tank is the last tank which acts as the primary structural support towards the aft of the vessel. It lies towards the aft of the aft peak bulkhead.…
Sewage is a very smelly topic if left undiscussed. This article will help you understand how the maritime industry handles human waste aboard the ship without violating or harassing the environment. How does a sewage treatment plant work on ships? The sewage treatment plant on the ship begins by collecting and segregating the wastewater from…