The goal of this paper is to contribute to the design of high-performance mesocombustors, a field currently under rapid development, in particular for propulsion, e.g., for UAVs, and micro/meso-electrical power generators. This study is focused on a cylindrical combustor of 29 cm, fuelled by methane and air, which provides 2 kW of thermal power. The device was entirely designed and built at the...

An airframe integrated scramjet propelled vehicle has advantages for application to several missions. In its simplest form, such a vehicle will combine the features of quick reaction, low vulnerability to counter attack and better propulsion efficiency. The Supersonic Combustion Ramjet (SCRAMJET) engine has been recognized as the most promising air breathing propulsion system for the hypersonic...

Thermophotovoltaic (TPV) systems offer an efficient way to directly convert thermal energy into electricity using the radiation emitted from a high temperature source. Compared conventional photovoltaic (PV) systems, TPVs have additional elements such as filters tailor and shape radiated impinging on PV cell improve conversion efficiency. High contrast grating (HCG) structures are integrated wi...

The energy transition with transformation into predominantly renewable sources requires technology development to secure power production at all times, despite the intermittent nature of renewables. Micro gas turbines (MGTs) are small heat and generation units fast startup load-following capability thereby suitable backup for future’s decentralized systems. Due MGTs’ fuel flexibility, a range f...

Title of Document: SPRAY FLAME AND EXHAUST JET CHARACTERISTICS OF A PRESSURIZED SWIRL COMBUSTOR Martin Brendan Linck, Doctor of Philosophy, 2006 Directed By: Professor Ashwani K. Gupta Department of Mechanical Engineering This work describes an investigation of swirl-stabilized flames, created in a combustor featuring co-annular swirling airflows, under unenclosed, enclosed, and submerged condi...