A supercritical CO2 (S-CO2) Brayton cycle is a compact and simple power conversion system with competitive efficiency. However, the strong real gas effects of S-CO2 pose challenges to design its components. In particular, designing turbomachinery for expansion compression processes has accurately reflect effects. Windage loss one major losses that affects motor load heat generation in turbomach...

In this study, a nuclear hybrid energy system (NHES) with large-scale hydrogen storage integrated gas turbine cycle is proposed as flexible for load following. The consists of reactor, steam Rankine cycle, electrolyzer, in an underground salt cavern, and Brayton that uses fuel to generate additional electricity meet peak demand. A dynamic mathematical model developed each subsystem the NHES. To...

In recent years, there has been an increase in the use of renewable energy resources, which led to need for large-scale Energy Storage units electric grid. Currently, Compressed Air (CAES) and Pumped Hydro (PHES) are main commercially available storage technologies. However, these technologies restricted geographically can require fossil fuel streams heat air. Thus, is a develop novel that do n...

In the marine engineering industry, turbocharged diesel engines are often used to generate electricity, and hot oil can be extracted after generating electricity. However, engine heat recovery distinguished from gas for nonturbocharged systems. The ideal air model Brayton cycle is evaluate feasibility of turbocharged/nonturbocharged cogeneration retrofits in systems, paper designed effect press...

Blast furnace gas is the major combustible by-product produced in steel industry, where iron ore reduced by coke into iron. Direct combustion of blast after simple treatment for power generation a common utilization method nowadays. However, this suffers from low efficiency and high carbon intensity. The use gas-steam combined cycle an excellent to improve generation. there problem insufficient...

Abstract The global climate change challenge and the international commitment to reduce carbon emission can be addressed by improving energy conversion efficiency adopting efficient waste heat recovery technologies. Supercritical dioxide (s-CO2) cycles that offer a compact footprint higher cycle are investigated in this study utilize of exhaust gas from marine diesel engine (Wärtsilä-18V50DF, 1...