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Gas engine power plant and method of operating a gas engine power plant

A gas engine and power device technology, applied in the direction of engine components, combustion engines, engine control, etc., can solve the problem that energy cannot be used effectively

Active Publication Date: 2021-08-06
WARTSILA FINLAND OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] It is well known in the field of internal combustion piston engines that a considerable portion of the energy contained in the fuel combusted in the engine cannot be efficiently utilized in practice

Method used

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  • Gas engine power plant and method of operating a gas engine power plant

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Embodiment Construction

[0025] figure 1 A gas engine power plant 10 is schematically depicted comprising at least one dual fuel internal combustion engine 12 , hereinafter referred to as the engine. A dual fuel engine is a piston engine that can run on both gaseous and liquid fuels. When running in gas mode, the engine works according to the Otto process, in which a lean air-fuel mixture is used for combustion. When running in diesel mode, the engine works according to the Diesel process. The engine is optimized to run on gaseous fuel, and diesel fuel is used for backup fuel operation. During operation, switching between fuels occurs seamlessly without loss of power or speed. exist figure 1 Among them, the power plant 10 is in a sea vessel 14 for generating propulsion and / or electric power for the sea vessel 14 . The sea vessel is provided with sea suction tanks 16 which provide sea water in the sea vessel 14 for cooling purposes. Power-plant 10 includes cryogenic fuel storage, or cryogenic tan...

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Abstract

Invention relates to a gas engine power plant (10) comprising at least one dual fuel internal combustion engine (12) configured to run by burning gas fuel, a cryogenic fuel storage (18) for storing gas fuel in liquefied form for use of the engine (12), a fuel feed line (20) between the cryogenic fuel storage (18) and the at least one dual fuel internal combustion engine (12), a main gas evaporator (24) arranged to the fuel feed line (20) and configured to evaporate the liquefied gas for use by the at least one dual fuel internal combustion engine (12), a heat transfer circuit (11) configured to circulate heat transfer fluid in the circuit for transferring heat from the at least one dual fuel engine (12) to heat transfer fluid, a central heat transfer fluid cooler system (40) arranged to the heat transfer circuit (11) and where the main gas evaporator (24) is arranged into heat transfer communication with the heat transfer circuit (11) after the central fluid cooler system (40) in the flow direction of the heat transfer fluid such that heat transfer fluid temperature entering the main gas evaporator (24) is controllable by the central cooler system (40). Invention relates also to a method of operating a gas engine power plant (10).

Description

technical field [0001] The invention relates to a gas engine power plant according to the preamble of claim 1 . The invention also relates to a method of operating a power plant according to the preamble of the independent method claim. Background technique [0002] It is well known in the field of internal combustion piston engines that a considerable part of the energy contained in the fuel combusted in the engine cannot be efficiently utilized in practice. Only about 50% of the energy in the fuel is converted into mechanical work, while the remainder is dissipated as heat. For constructional and operational reasons, the engine itself is provided with a cooling system in which a cooling fluid, such as a water-based solution, is arranged to receive excess heat from the engine and transfer it to consumers or reject it to the environment. [0003] On the other hand, the use of LNG (liquefied natural gas) as fuel for marine applications is increasing because it is an efficie...

Claims

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Application Information

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IPC IPC(8): F02M21/06F02D19/06F02M21/02F02B29/04F02D19/10
CPCF02B29/0443F02D19/0647F02D19/0668F02D19/105F02M21/0221F02M21/06Y02T10/30
Inventor V·哈洛宁K·维耶斯克T·霍格纳巴
Owner WARTSILA FINLAND OY