In this study, first-law, second-law, and exergo-economic investigations are accomplished to recover the waste heat of a two-shaft turbofan engine applying supercritical carbon dioxide Brayton cycle. The efficacy different operating parameters including inlet temperature turbine, pressure ratio compressor, Mach number on performance proposed system in terms energy exergy performance, destructio...

Supercritical CO2 power systems offer the potential of reduced system footprint and improved thermal efficiency, through development adoption compact heat exchangers. Among these exchangers, microtube, printed circuit, plate exchangers are emerging as most promising technologies for addition to cycle, recuperation rejection, respectively. To investigate performance supercritical recuperated Bra...

Compressed air energy storage (CAES) is a large-scale technology that provides long-duration energy storage. It is promising for balancing the large-scale penetration of intermittent and dispersed sources of power, such as wind and solar power, into electric grids. The existing CAES plants utilize natural gas (NG) as fuel. However, China is rich in coal but is deficient in NG; therefore, a hybr...

This paper presents a thermoeconomic analysis aimed at the optimization of a novel zero-CO2 and other emissions and high-efficiency power and refrigeration cogeneration system, COOLCEP-S (Patent pending), which uses the liquefied natural gas (LNG) coldness during its revaporization. It was predicted that at the turbine inlet temperature (TIT) of 900 C, the energy efficiency of the COOLCEP-S sys...

In this study, the techno-economic performance of supercritical carbon dioxide (sCO2) power cycles in concentrating solar plants based on particle technology is assessed. A simplified levelized cost electricity calculation was used to investigate effect cycle parameters, compare layouts and allow for comparing optimized sCO2 blocks with steam technology. Results showed that simple fewer compone...

Renewable energy sources such as wind turbines and photovoltaics are the key to an environmentally friendly supply. However, their volatile power output is challenging in regard supply security. Therefore, flexible systems with storage capabilities crucial for expansion of renewable since they allow storing off-demand produced reconverting supplying it on-demand. For this purpose, a novel plant...