... in either intensive or mass specific terms. 03 12 2010 07 02 2011 17 05 2011 17 05 2011 air Brayton cycle propulsion specific heat thermal expansion thermodynamics Many persistent questions about propulsion and power cycles are generally related to the impact...

... performance driver in a combined cycle power plant is the gas turbine. The basic thermodynamics of the gas turbine, described by the well-known Brayton cycle, dictates that the key design parameters that determine the gas turbine performance are the cycle pressure ratio and maximum cycle temperature...

... exchanger due to the presence of a pinch point inside the regenerative heat exchanger. Taking such a pinch problem into consideration, the cycle efficiency of the Brayton cycle is assessed. Its value is found to be limited to 39% degraded by 8% compared with the case without the pinch present inside...

...Mohamed S. El-Genk; Jean-Michel Tournier The performance of very high temperature reactor plants with direct and indirect closed Brayton cycles (CBCs) is compared and the effects of the molecular weight of the CBC working fluid on the number of stages and sizes of the axial flow, single shaft...

...Rakesh K. Bhargava; Michele Bianchi; Stefano Campanari; Andrea De Pascale; Giorgio Negri di Montenegro; Antonio Peretto This paper discusses the gas turbine performance enhancement approach that has gained a lot of momentum in recent years in which modified Brayton cycles are used...

... with supercritical heat parameters, the net efficiency of electricity generation reaches 50–55%. There are three methods of the Brayton cycle carnotization: regeneration, helium cooldown during compression, and heat supply during expansion. These methods can be used both separately and in combination, which gives...

...Matthew Blieske; J. E. D. Gauthier; X. Huang To bring the economic benefit of trigeneration to small-scale users without incorporating expensive components, an inverted Brayton cycle (IBC) is employed, which makes use of the expander section already present in a microturbine. An air accumulator...

... technologies by injecting steam from a steam turbine into the combustion chamber of a gas turbine to combine the Rankine cycle with the Brayton cycle. The thermal efficiency of this system will be higher based on the cascade utilization of energy level. Compared with the conventional integrated gasification...

... mm , a practical Brayton cycle is not possible. Despite that, however, and for rotor diameters less than between about 7 mm and 2 mm , a viscous flow turbine, compressor, or pump will be more efficient than a conventional design. This may have a significant impact on the design...