Enhancing power cycle efficiency for a supercritical Brayton cycle power system using tunable supercritical gas mixtures
| DWPI Title: Supercritical Brayton cycle power generation system for providing electric power to mobile vehicles e.g. ship, has heat source which is coupled with inlet port of turbine by piping to heat fluid in power generation system |
| Abstract: Various technologies pertaining to tuning composition of a fluid mixture in a supercritical Brayton cycle power generation system are described herein. Compounds, such as Alkanes, are selectively added or removed from an operating fluid of the supercritical Brayton cycle power generation system to cause the critical temperature of the fluid to move up or down, depending upon environmental conditions. As efficiency of the supercritical Brayton cycle power generation system is substantially optimized when heat is rejected near the critical temperature of the fluid, dynamically modifying the critical temperature of the fluid based upon sensed environmental conditions improves efficiency of such a system. |
| Use: Supercritical Brayton cycle power generation system for providing electric power to mobile vehicles such as ship, aircraft carrier, submarine and large airplane, residences and enterprise. |
| Advantage: The power generation system is environmentally friendly. The efficient power generation systems are desired. The efficiency of the supercritical Brayton cycle power generation system can be enhanced. The system desirably rejects heat at or near the critical temperature of the supercritical fluid that is flowing through the system. The cost effective power conversion can be achieved. The supercritical Brayton cycle power generation system has high power density and is very compact. The amount of energy utilized by the heat source can be reduced to cause the temperature of the fluid to be suitable for provision to the turbine. |
| Novelty: The power generation system (100) has a heat source (102) with an inlet port and an outlet port and is provided to heat a fluid in the system, a turbine (104), a compressor (112) and a heat rejector (118). The heat source is coupled with an inlet port of the turbine by a piping (106). An outlet port of the turbine is coupled with an inlet port of heat rejector by a piping (114). An outlet port of the heat rejector is coupled with an inlet port of compressor by a piping (116). An outlet port of compressor is coupled with the inlet port of the heat source by a piping (122). |
| Filed: 8/5/2011 |
| Application Number: US13204150A |
| Tech ID: SD 11594.0 |
| 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. |
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