نتایج جستجو برای: gas turbines

تعداد نتایج: 252672  

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2009
Kevin Menzies

The gas turbine presents significant challenges to any computational fluid dynamics techniques. The combination of a wide range of flow phenomena with complex geometry is difficult to model in the context of Reynolds-averaged Navier-Stokes (RANS) solvers. We review the potential for large eddy simulation (LES) in modelling the flow in the different components of the gas turbine during a practic...

2005
Roland Kaiser

Industrial gas turbines allow operation with a wide variety of gaseous and liquid fuels. To determine the suitability for operation with a gas fuel system, various physical parameters of the proposed fuel need to be determined: heating value, dew point, JouleThompson coefficient, Wobbe index, and others. This paper describes an approach to provide a consistent treatment for determining the abov...

2003
Peter James Sweeney

On 9 October 2001 two US oil companies Chevron and Texaco merged. Their long-term joint venture operation, known as Caltex (formed in 1936 and operating in East and Southern Africa, Middle East, Asia and Australasia), was incorporated into the one global energy company. This global enterprise will be highly competitive across all energy sectors, as the new company brings together a wealth of ta...

2005
Josef Petek

Managing an asset requires numerous technologies designed to assess health. While most gas turbines in the field are fitted with some type of mechanical condition monitoring system (see companion article on page 48 in this issue of ORBIT), it is less common to see the inclusion of thermodynamic performance monitoring systems. However, performance monitoring is no less critical for those seeking...

2013
Gerhard Müller Martin Valk Helmut Heller

In the course of the last decade gas turbines have emerged as a core component of modern power plants. Key for this development has been the structural change of important power markets along with the rapid progress in technology, i.e. the fields of aerodynamics, cooling, combustion and materials. In a combination with improved thermodynamic cycles, standardisation and optimised production proc...

Journal: :Journal of Physics: Conference Series 2013

Journal: :Periodica Polytechnica Mechanical Engineering 2011

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