摘要:
The present invention relates to an apparatus and method for supplying hybrid power using regenerative power generated from an offshore plant. According to one embodiment of the present invention, provided is an apparatus for supplying hybrid power of an offshore plant, the apparatus comprising: a generator; an AC/DC converter for converting alternating current produced from the generator into direct current and supplying the direct current to a DC bus; a power load connected to the DC bus so as to regenerate power; a first DC/DC converter connected to the DC bus; a second DC/DC converter connected to the DC bus; a first power storage unit connected to the first DC/DC converter and storing power when a voltage of the DC bus is maintained at a level of a first threshold value or higher for a first time period; and a first resistance unit connected to the second DC/DC converter and consuming power when the voltage of the DC bus is maintained at the level of the first threshold value or higher for a second time period, wherein the second time period is longer than the first time period.
摘要:
Disclosed herein are an apparatus and a method for supplying a fuel to an engine of a ship. The apparatus for supplying a fuel to an engine of a ship includes: a high pressure pump pressurizing a liquefied natural gas (LNG) and supplying the pressurized LNG to the engine; a hydraulic motor driving the high pressure pump; and a lubricating pump supplying lubricating oil to the high pressure pump.
摘要:
Provided is a ventilating apparatus for a drill ship, which allows a drill ship sailing around an arctic region to maintain appropriate temperature and pressure. The ventilating apparatus for the drill ship includes: a derrick forming an enclosed space blocked from the exterior; a moonpool formed under the derrick; an air supply device supplying outside air to the moonpool or the derrick; and an air exhaust device exhausting the supplied outside air out of the top of the derrick.
摘要:
An LNG storage tank and a method of treating boil-off gas using the same are disclosed. The LNG storage tank and the method of treating boil-off gas enable the pressure of the LNG storage tank to be maintained in a stable state without consuming boil-off gas generated in the LNG tank as propulsion fuel or without re-liquefying the boil-off gas. The storage tank comprises a thermal insulation wall, and has strengthened structure to permit a pressure increase resulting from heat influx to the LNG tank and boil-off gas generation. The method comprises permitting a pressure increase by the boil-off gas generation and LNG cargo temperature increase in the storage tank without treating the generated boil-off gas in the storage tank, so that the boil-off gas is accumulated without extracting or loss in the storage tank.
摘要:
A hybrid fuel supply system for an engine of a vessel is provided. The hybrid fuel supply system for the engine of the vessel includes: a compression device configured to compress boil-off gas (BOG) generated from liquefied natural gas (LNG) stored in an LNG cargo tank; a high pressure pump configured to compress LNG supplied from the LNG cargo tank; a vaporizer configured to vaporize the LNG compressed by the high pressure pump; and a dual fuel (DF) engine to which the BOG compressed through the compression device is supplied as fuel. The engine of the vessel uses high pressure gas compressed at 150 to 400 bar as fuel and is driven by at least one of the BOG compressed in the compression device and the LNG compressed in the high pressure pump.
摘要:
Provided is a liquefied gas treatment system for a vessel, which includes a storage tank (11) storing liquefied natural gas, and an engine using the liquefied natural gas stored in the tank as fuel. The liquefied gas treatment system includes: a first stream of boil-off gas, which is generated from the liquefied natural gas in the tank (11) and is discharged from the tank; a second stream of the boil-off gas, which is supplied as fuel to the engine; and a third stream of the boil-off gas, which is not supplied to the engine in the first stream. The first stream is compressed at about 150 to 400 bara in a compressor (13) and is branched into the second stream and the third stream. The compressed third stream is cooled and the cooled third stream is decompressed to be in a gas-liquid state and is supplied to a gas-liquid separator.