A review of supercritical CO2 Brayton cycle using in renewable energy applications

Abstract

Supercritical carbon dioxide (sCO2), which is an environmentally friendly working fluid, has very good thermal physical properties. Many researchers have studied the heat transfer mechanism and the enhanced heat transfer method of the supercritical CO2 Brayton cycle (sCO2-BC). The sCO2-BC has many applications including the next generation of Fast Cooling Reactor (FCR), solar power system, extraction process and heat pump system. The sCO2-BC provides high efficiency and high compactness, which is important because system miniaturization is vital to these developing technologies. The present paper reviews the recent references on the research progress of the sCO2-BC system. Furthermore, it discusses the analysis of key components such as the compressor, turbine and heat exchanger, which differ from the devices used in the conventional steam Rankine cycle due to the special thermal properties of sCO2. Finally, the researchers propose some recommendations towards the development of sCO2-BC system for future work.

Review on corrosion of alloys for application in supercritical carbon dioxide brayton cycle

“…As global energy demand continues to increase, the energy conversion efficiency of power generation systems must be improved urgently. Currently, the most typically used power generation cycles include the supercritical water-steam Rankine cycle, organic Rankine cycle and supercritical Brayton cycle [ 1 ]. The Brayton cycle is a widely used power cycle, in which the most typically utilized working fluids include helium [ 2 ], air [ 3 ], supercritical carbon dioxide ( S –CO 2 ) [ [4] , [5] , [6] ] and supercritical nitrous oxide [ 7 ].…”