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What is Brayton Cycle

Chapter 31
Handbook of Research on Novel Soft Computing Intelligent Algorithms: Theory and Practical Applications
The solar thermal Brayton cycle uses the concentrated power of the sun as a heat source to generate mechanical power. Low operation and maintenance costs make the small-scale open and direct solar thermal Brayton cycle with recuperator attractive for power generation. A black solar receiver, mounted at the focus of a parabolic dish concentrator can be sized such that it absorbs the maximum amount of heat. The irreversibilities of the open and direct solar thermal Brayton cycle with recuperator are mainly due to heat transfer across a finite temperature difference and fluid friction, which limit the net power output of such a system. In this work, the method of total entropy generation minimisation is applied to optimise the geometries of the receiver and recuperator at various steady-state weather conditions.
Published in Chapter:
Systems with Concentrating Solar Radiation
Saša R. Pavlović (University of Niš, Serbia) and Velimir P. Stefanović (University of Niš, Serbia)
Copyright: © 2014 |Pages: 58
DOI: 10.4018/978-1-4666-4450-2.ch031
Abstract
In this chapter, description and working principles of the parabolic trough power plants, solar tower power plants, parabolic dish power plants, and power plants with Fresnel reflectors in the world and their potential use in Serbia are given. In addition, the examples and technical characteristics of some concetrating solar power plants in the world are given. The cases in which solar cells are used to generate electrical energy are very rare. Solar systems referred as mid temperature (100–400 oC) are considered suitable for integration with industrial processes, cooling, and polygeneration systems through use of concentrating solar collectors. The results of this research may be applied in the construction of small solar systems, but also in the design and construction of large polygeneration systems. Physical and mathematical model is presented, as well as numerical procedure for predicting thermal performances of the P2CC (Parabolic-and-Circular Collector) solar concentrator.
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Chapter 17
Application of Supercritical Fluids in Thermal- and Nuclear-Power Engineering
Is thermodynamic power cycle based on gas turbine. Widely used in gas-fired thermal power plants (consists of compressor, combustion chamber (source of heat) and gas turbine connected to electrical generator; open cycle; working fluid: combustion products). Might be used in Generation-IV (next generation) nuclear power plants (consists of reactor (source of heat), (heat exchanger for indirect cycle), gas turbine connected to electrical generator, recuperator, heat exchanger (cooler) to reject heat, compressors, and intercooler; closed cycle; working fluids: supercritical-pressure helium (direct and indirect cycles), nitrogen (indirect cycle), nitrogen-helium mixture (indirect cycle), and carbon dioxide (indirect cycle).
Published in Chapter: Application of Supercritical Fluids in Thermal- and Nuclear-Power Engineering; From: Handbook of Research on Advancements in Supercritical Fluids Applications for Sustainable Energy Systems
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Chapter 16
Supercritical Fluids and Their Applications in Power Generation
It is a thermodynamic cycle that describes the workings of a constant pressure heat engine. Modern gas turbine engines and airbreathing jet engines follow the Brayton cycle to generate electricity.
Published in Chapter: Supercritical Fluids and Their Applications in Power Generation; From: Handbook of Research on Advancements in Supercritical Fluids Applications for Sustainable Energy Systems
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