Configurations and methods for lng fueled power plants

F - Mech Eng,Light,Heat,Weapons – 02 – C

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Details

F02C 6/18 (2006.01) F02C 7/047 (2006.01) F02C 7/143 (2006.01) F02C 7/00 (2006.01)

Patent

CA 2589536

Contemplated configurations and methods use first and second precoolers, preferably in alternating operation, to provide a combustion turbine with air at a temperature of 50 ~F, and more typically less than 32~F and most typically less than 0'F. In such configurations and methods it is generally preferred that a heat transfer fluid circuit provides both, heated and cooled heat transfer fluid to thereby allow cooling and deicing of the precoolers. Most preferably, refrigeration is provided from an LNG regasification unit to form the cooled heat transfer fluid while heat from a power cycle (e.g., from surface condenser) is used to form the heated heat transfer fluid.

L'invention concerne des conceptions et des procédés mettant en oeuvre des premier et second prérefroidisseurs fonctionnant, de préférence, de façon alternée, de manière à mettre en place une turbine de combustion avec l'air à une température de 50 °F et, en général, inférieure à 32 °F et idéalement inférieure à 0 °F. Dans de tels conceptions et procédés, il est, en général, souhaité qu'un circuit de fluide de transfert thermique fournisse le fluide de transfert thermique aussi bien chauffé que refroidi, de manière à permettre ainsi de refroidir et de dégivrer les prérefroidisseurs. Plus idéalement encore, la réfrigération est obtenue grâce à une unité de régazéification LNG permettant de former le fluide de transfert thermique refroidi alors que la chaleur d'un cycle de puissance (par exemple, d'un condensateur par surface) est utilisée de manière à former le fluide de transfert thermique chauffé.

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