摘要:
A hybrid system for a ship, the hybrid system comprising an engine, an electric motor, a thrust generation device, and a clutch mechanism that can switch the connection state between the engine, the electric motor, and the thrust generation device. When it has been determined that the engine is overloaded, the clutch mechanism is controlled to reduce the load of the engine.
摘要:
The invention relates to a marine surface vessel (1), in particular a passenger ship, extending in a longitudinal direction between a bow (2) and a stern (3), comprising —least one power providing apparatus (6) operatively connected to at least one propulsion unit (7) for propulsion of the vessel, —a fuel tank arrangement (8) for storing gaseous fuel in a liquid phase, connected to the power providing apparatus (6) by means of a gas supply system for running the power providing apparatus (6), and —a plurality of decks (91-98) distributed vertically, one above the other, —the fuel tank arrangement (8) comprising two tank sub-arrangements (81, 82), each tank sub-arrangement comprising at least one gaseous fuel tank (811, 812, 821, 822), each fuel tank extending vertically past at least two of the decks (92-95), and at least two of the decks (92-95), past which the fuel tanks (811, 812, 821, 822) extend, each presents a passageway (941) extending between the tank sub-arrangements (81, 82).
摘要:
Provided are a waste heat recovery system, a ship propulsion system, a ship, and a waste heat recovery method, whereby the amount of waste heat lost into the atmosphere from an internal combustion engine can be reduced, and the efficiency of the ship propulsion system as a whole can be improved. A first low-pressure water-supplying heater (85) is provided for conducting heat exchange between jacket cooling water that has passed through a water jacket of an internal combustion engine (11, 61, 62), and condensed water that has condensed on the downstream side of a steam turbine (12, 41) and been led to an exhaust gas economizer (94), and heating the condensed water with the heat of the jacket cooling water.
摘要:
An arrangement for providing liquefied natural gas (LNG) as fuel for propulsion of a ship (1, 6) having cargo tanks (2, 7) for liquefied gas comprises a source of LNG (3, 8) and at least one first heat exchanger (41) for vaporizing and/or heating the LNG directly or indirectly with a warmer medium (44). The warmer medium is boil-off gases from the cargo tanks (2, 7) being re-liquefied in the process.
摘要:
A device and a method for starting an internal combustion engine, provided with an exhaust turbine turbocharger (12), an electric motor generator (32), a power storage unit (35), an engine rotation starter device (24), injectors (18), and a control device (38) that controls the electric motor generator (32), the engine rotation starter device (24), and the injectors (18), wherein when an engine rotation activation start signal (102) is input and the rotational frequency of the exhaust turbine turbocharger (12) reaches an engine rotation-activation-starting rotational frequency, the control device (38) starts driving the engine rotation starter device (24), and when the engine rotational frequency reaches a fuel-supply-starting rotational frequency, the control device starts driving the injectors (18), thus improving the starting performance of the internal combustion engine.
摘要:
Embodiments provide for safely and reliably operating a generator in a submersible environment utilizing an autonomous control system. One embodiment is a power generation system that includes a generator, a water-tight enclosure surrounding the generator, an intake valve, an exhaust valve, and a controller. The intake valve couples an air intake on the generator to an outside surface of the enclosure. The exhaust valve couples an exhaust port on the generator to the outside surface. If the controller determines that the enclosure will submerge, then the controller stops the generator and closes the intake valve and the exhaust valve. After detecting that the enclosure has surfaced, the controller opens the intake valve, opens the exhaust valve, and starts the generator.