A multipurpose vessel suitable for the intended purposes of being practically and quickly. This can be performed manually or using a lifting device, to arrange the various modules, in accordance with the purpose of the task to be performed, in several positions along the deck, in accordance with the distribution of the cargo to be transported. There are tanks arranged below the compartments, which can be used as fuel tanks and/or ballast. The compartments can also be configured individually or in combination.

One or more exemplary embodiments comprise a system having: a primary ballast tank; an auxiliary ballast tank; and a Venturi valve having a fluid input channel, a first fluid output channel, and a second fluid output channel that outputs fluid at a pressure that is higher than that of the first fluid output channel, wherein the first fluid output channel of the Venturi valve is coupled to the primary ballast tank for filling the primary ballast tank with fluid, and the second fluid output channel of the Venturi valve is coupled to the auxiliary ballast tank for filling the auxiliary ballast tank with fluid.

One or more exemplary embodiments comprise a system having: a primary ballast tank; an auxiliary ballast tank; and a Venturi valve having a fluid input channel, a first fluid output channel, and a second fluid output channel that outputs fluid at a pressure that is higher than that of the first fluid output channel, wherein the first fluid output channel of the Venturi valve is coupled to the primary ballast tank for filling the primary ballast tank with fluid, and the second fluid output channel of the Venturi valve is coupled to the auxiliary ballast tank for filling the auxiliary ballast tank with fluid.

The present invention relates to a liquefied gas carrier having a width of less than 32.3 m to pass through the old Panama Canal, which includes a liquefied gas tank having a liquefied gas storage capacity of 70K or more, preferably 78.7K.

The present invention relates to a liquefied gas carrier having a width of less than 32.3 m to pass through the old Panama Canal, which includes a liquefied gas tank having a liquefied gas storage capacity of 70K or more, preferably 78.7K.

A ballast system for a boat includes a ballast tank, a ballast bladder, and a fluid coupling. The ballast tank includes a plurality of walls defining a tank cavity for storing water therein. The ballast bladder includes one or more panels defining a bladder cavity for storing water therein. At least one of the panels is a flexible panel. The fluid coupling includes a receiver and a plug engageable with the receiver to fluidly connect the tank cavity with the bladder cavity. One of the receiver or the plug is a tank coupling component directly attached to one of the plurality of walls of the ballast tank and the other one of the receiver or the plug is a bladder coupling component directly attached to one of the panels of the ballast bladder.

A container ship and a layout structure thereof are disclosed. In the layout structure of the container ship of the present invention, an engine room, in which a propulsion engine receiving LNG as fuel is provided, is disposed under a main deck at the stern of the container ship, an LNG storage tank storing the LNG is disposed in a cargo hold adjacent to the engine room, a fuel supply part for receiving the LNG from the LNG storage tank and supplying the LNG to the propulsion engine is disposed right above the LNG storage tank inside the cargo hold, and a void space isolating the LNG storage tank and the fuel supply part from each other is disposed therebetween.

Provided is a fuel composition prepared by adding gas-to-liquid oil and water to light cycle oil to conduct emulsification. The fuel composition is used as a fuel for a diesel engine (12) in a ship (10). The ship (10) includes a fresh water tank (15), an LCO tank (13), and a GTL tank (14) configured to store water, light cycle oil, and gas-to-liquid oil, respectively, and a mixer (16) configured to mix the water, the light cycle oil, and the gas-to-liquid oil fed from the respective tanks to produce the fuel composition.

Provided is a fuel composition prepared by adding gas-to-liquid oil and water to light cycle oil to conduct emulsification. The fuel composition is used as a fuel for a diesel engine (12) in a ship (10). The ship (10) includes a fresh water tank (15), an LCO tank (13), and a GTL tank (14) configured to store water, light cycle oil, and gas-to-liquid oil, respectively, and a mixer (16) configured to mix the water, the light cycle oil, and the gas-to-liquid oil fed from the respective tanks to produce the fuel composition.

One or more exemplary embodiments comprise a system having: a primary ballast tank; an auxiliary ballast tank; and a Venturi valve having a fluid input channel, a first fluid output channel, and a second fluid output channel that outputs fluid at a pressure that is higher than that of the first fluid output channel, wherein the first fluid output channel of the Venturi valve is coupled to the primary ballast tank for filling the primary ballast tank with fluid, and the second fluid output channel of the Venturi valve is coupled to the auxiliary ballast tank for filling the auxiliary ballast tank with fluid.