A method and system for generating power from a heat source

Details A method and system for generating power from a heat source A method and system for generating power from a heat source

F - Mech Eng,Light,Heat,Weapons

01

K

F01K 25/10 (2006.01) F03G 7/04 (2006.01) F24J 3/08 (2006.01)

Patent

CA 2652243

A method of generating power from a heat source, said method including: compressing (10) a working fluid to increase its temperature; exchanging (11) heat between said working fluid and said heat source to superheat said working fluid; expanding (12) said superheated working fluid to drive a turbine, thereby reducing its temperature; condensing (13) said working fluid to further reduce its temperature; and returning said working fluid to said compressing step (10), the method further including the step (14) of regenerating the heat of said working fluid wherein working fluid passing between said compressing step (10) and said heat exchanging step (11) exchanges heat with working fluid passing between said expanding step (12) and said condensing step (13); wherein said steps are performed in a thermodynamic cycle (S1-S1'-S2-S3- S3'-S4) within a supercritical region (SC) above the saturation dome (A) of said working fluid, and wherein said heat regenerating step (14) is performed under isenthalpic conditions to induce continuous heat exchange. A system for generating power from a heat source is also provided.

L'invention concerne un procédé de génération d'énergie à partir d'une source de chaleur, ledit procédé comprenant les étapes : de compression (10) d'un fluide de travail pour en augmenter la température ; d'échange de chaleur (11) entre ledit fluide de travail et ladite source de chaleur pour surchauffer ledit fluide de travail ; de dilatation (12) dudit fluide de travail surchauffé pour actionner une turbine en réduisant ainsi sa température ; de condensation (13) dudit fluide de travail pour en réduire davantage la température ; et de renvoi dudit fluide de travail à ladite étape de compression (10). Le procédé comprend en outre l'étape (14) de régénération de la chaleur dudit fluide de travail par échange de chaleur du fluide de travail passant entre ladite étape de compression (10) et ladite étape d'échange de chaleur (11) avec le du fluide de travail passant entre ladite étape de dilatation (12) et ladite étape de condensation (13). Les étapes sont mises en AEuvre dans un cycle thermodynamique (S1-S1'-S2-S3-S3'-S4) au sein d'une région supercritique (SC) au-dessus du dôme de saturation (A) dudit fluide de travail, et ladite étape de régénération de chaleur (14) est mise en AEuvre dans des conditions isenthalpiques dans le but de créer un échange de chaleur continu. L'invention concerne également un système de génération d'énergie à partir d'une source de chaleur.

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