Assessment of existing H2/O2 chemical reaction mechanisms at reheat gas turbine conditions

Simulation of Mist Film Cooling at Gas Turbine Operating Conditions

Air film cooling has been successfully used to cool gas turbine hot sections for the last half century. A promising technology is proposed to enhance air film cooling with water mist injection. Numerical simulations have shown that injecting a small amount of water droplets into the cooling air improves film-cooling performance significantly. However, previous studies were conducted at conditio...

Mathematical Modeling of Fluorination Reaction of Uranium Dioxide and Evaluation of Existing Gas-Solid Reaction Models

Thermodynamic performance evaluation of combustion gas turbine cogeneration system with reheat

This communication presents thermodynamic methodology for the performance evaluation of combustion gas turbine cogeneration system with reheat. The energetic and exergetic efficiencies have been defined. The effects of process steam pressure and pinch point temperature used in the design of heat recovery steam generator, and reheat on energetic and exergetic efficiencies have been investigated....

Measuring Microparticle Impact Characteristics under Realistic Gas Turbine Conditions

Gas turbines can be exposed to microparticle ingestion throughout their lifespan due to the harsh conditions, like deserts, in which many of them operate. Microparticles can wear out turbine blades and clog cooling holes which may result in the failure of the blade. To measure the interaction of microparticles with turbine components the Coefficient of Restitution (COR) is used. The objective o...

Gas Absorption with Chemical Reaction in Turbulent Flow

In order to increase the rate of gas absorption, chemical reaction in the liquid phase is considered. The purpose of this paper was to simulate gas absorption process by a liquid film over a spherical packing incorporating eddy viscosity and diffusivity. Second order chemical reaction for two different cases (fast and slow) were considered. The system partial differential equations obtained...