A hybrid propulsion and energy management system for use in marine vessels and other variable demand propulsion applications monitors and draws energy from various energy sources dynamically to implement multiple operating modes and provide efficient system operation across a range of propulsive demands, altering the operation and output of various energy sources in response to propulsive load demands, hotel loads and auxiliary energy demands. The propulsion system incorporates at least two propulsive sources, including at least one main propulsive engine and at least one motor-generator unit arranged to drive a common output shaft, and the energy management system dynamically shifts operation of each of the two sources to satisfy propulsive demands. The main propulsive engine and the motor-generator unit are capable of driving the common output shaft both independently and simultaneously. The motor-generator unit(s) are available to operate either as a motor driving the output shaft or as a generator supplying energy to the energy distribution system.

Hybrid propulsion systems

Marine LNG carrier and method of operating the marine LNG carrier. The LNG carrier carries LNG in at least one tank. Gas composed of evaporated LNG within the at least one tank is removed. The gas is fed to at least one gas consuming prime mover of the LNG carrier. Power is provided with the at least one gas consuming prime mover. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

System and process for transporting lng by non-self-propelled marine lng carrier

An LNG carrier for transporting LNG from one location to another that includes a vaporizer (23) on board said LNG carrier for vaporizing the LNG to a gaseous state, one or more heat exchangers (21) at least partially submerged in seawater, an intermediate fluid circulating between the vaporizer (23) and said heat exchanger (21), and one or more pumps (22) for circulating said intermediate fluid is disclosed. A method of regasifying LNG while on board an LNG carrier is provided that includes circulating an intermediate fluid between a vaporizer (23) on board the LNG carrier and a submerged heat exchanger (21), heating the LNG to a temperature above its vaporization temperature using heat energy carried by said intermediate fluid and heating the intermediate fluid using heat energy supplied by the submerged or partially submerged heat exchanger (21).

Method and apparatus for the regasification of lng onboard a carrier

A power generating and propelling system of a vessel, wherein power generating equipment (10) is installed between an internal combustion engine (2) and a power transmission device (3), an electric motor (9) is disposed on the power transmission device part, and the output shaft (9a) of the electric motor (9) is disposed coaxially with either of the rotating shafts of the power transmission device (3).

Power generating and propelling system of vessel

An auxiliary propulsion system that can be combined with a diesel engine to drive the shaft. A retrofittable diesel engine with a generator is installed to operate an electric motor. The electric motor is coupled to the shaft by means of a transmission with a flexible coupling and a clutch.

Auxiliary propulsion system for seagoing ships

Machinery arrangement for LNG ships consisting of a diesel engine and a combined gas turbine-steam turbine-electrical system. The diesel engine and the electromotor drive a vp-propeller. The diesel engine burns only bunker oil, while the combined gas turbine-steam turbine plant burns boiled off gas from the cargo.

Propulsion machinery for LNG ships

ENSEMBLE MOTEUR POUR NAVIRES TRANSPORTEURS DE GAZ NATUREL LIQUEFIE. IL COMPORTE UN MOTEUR DIESEL 11 ET UNE INSTALLATION DE TURBINES A GAZ ET A VAPEUR COMBINEES OU GROUPE GV 1, 2, 3, 4, 5; LE MOTEUR DIESEL 11 ET UN ELECTROMOTEUR 15 ENTRAINENT UNE HELICE 16 A PAS VARIABLE; LE MOTEUR DIESEL 11 CONSOMME SEULEMENT DE L'HUILE LOURDE, TANDIS QUE LE GROUPE GV CONSOMME DU GAZ EVAPORE A PARTIR DE LA CARGAISON. CET AGENCEMENT ASSURE UNE ECONOMIE D'HUILE LOURDE ET PERMET D'UTILISER LE GAZ D'EVAPORATION TANT EN VOYAGE SUR LEST QU'AU PORT, SANS INSTALLATION DE RECONDENSATION.

Koren Stein

Papers

Propulsion machinery for LNG ships

Ensemble moteur pour navires transporteurs de gaz naturel liquefie

Antriebsmaschinenanlage fuer lng-schiffe