Cascaded recompression closed brayton cycle system

DWPI Title: Method for operating cascaded recompression closed Brayton cycle system, involves combining first and second compressor discharge streams to form compressor discharge, and splitting compressor discharge to form turbine feed streams
Abstract: The present disclosure is directed to a cascaded recompression closed Brayton cycle (CRCBC) system and method of operation thereof, where the CRCBC system includes a compressor for compressing the system fluid, a separator for generating fluid feed streams for each of the system's turbines, and separate segments of a heater that heat the fluid feed streams to different feed temperatures for the system's turbines. Fluid exiting each turbine is used to preheat the fluid to the turbine. In an embodiment, the amount of heat extracted is determined by operational costs.
Use: Method for operating a cascaded recompression closed Brayton cycle system.
Advantage: The method enables combining first and second compressor discharge streams to form compressor discharge to reduce cost by improving working efficiency of a Brayton cycle power generation system. The method enables maximizing amount of thermal energy extracted from an open heat source to an economically optimized extent.
Novelty: The method involves splitting a compressor feed stream to form first and second compressor feed streams. The first compressor feed stream is provided to a first compressor, where the first compressor feed stream is compressed to form a first compressor discharge stream. The second compressor feed stream is provided to a second compressor, where the second compressor feed stream is compressed to form a second compressor discharge stream. The compressor discharge streams are combined to form compressor discharge. The compressor discharge is split to form the turbine feed streams.
Filed: 4/17/2017
Application Number: US15489338A
Tech ID: SD 12717.2
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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