Nowadays, the design and application of free-carbon emission renewable fuels in micropower generators seem to be interesting provide decentralized clean, affordable, resilient energy developing countries, thereby reaching 2050 net-zero carbon objectives. The operation micro-scale Closed Cycle Gas Turbine (CCGT) system with these such as biogas without negatively impacting combustion micro-turbi...

The present work numerically investigates the effect of a cavity implemented in premixed methane/air micro-combustor on enhancing its thermal performances and thermodynamic efficiencies for micro-thermophotovoltaic applications. 3D time-domain numerical model is first validated by comparing predictions with experimental data available literature. Then it applied to examine effects dimensionless...

Inserting porous media into the micro-scale combustor space could enhance heat recirculation from flame zone, and thus extend flammability limits improve stability. In context of micro-combustors, pore size is comparable to characteristic length. It insufficient treat medium as a continuum with volume-averaged model (VAM). Therefore, pore-scale (PSM) developed consider detailed structure better...

Original scientific paper Numerical simulations of four combustion processes in a dual-fuel combustor of chemically recuperated gas turbine (CRGT) were carried out in this work. The fuels in the four combustion processes were liquid fuel, liquid fuel + steam, liquid fuel + reformed gas and reformed gas, respectively. The mathematical models adopted for different fuels combustion consist of real...

A technology program was started in 1994 within the framework of the German Aeronautics Research Program to develop axial staged combustor technology up to a core engine demonstrator. The objective was to demonstrate a 50% NOx reduction against the ICAO CAEP II limit without any compromise on the CO, UHC and smoke emission level compared to the latest single annular combustor technology. All ot...

An introductory overview of the micro and small-scale devices for the combustion in micro-gas turbines is presented at the beginning of this paper in order to identify and select the main topics to be discussed in the following. The wide variety of combustion systems for this particular application, together with the different strategies and design concepts that are proposes for setting up effi...

The influence of the in-stream pylon and strut on the performance of scramjet combustor was experimentally and numerically investigated. The experiments were conducted with a direct-connect supersonic model combustor equipped with multiple cavities. The entrance parameter of combustor corresponds to scramjet flight Mach number 4.0 with a total temperature of 947 K. The research results show tha...