With the adoption of a condition based maintenance philosophy, a major gas turbine engine manufacturer has initiated a project to develop and implement an Expert Diagnostic System (EDS) to supplement its automated machinery vibration condition assessment program. The goal of this work is to enhance operational readiness, to promote maintenance self-sufficiency and to reduce overall life-cycle c...

Self-cooled liquid metal breeder blankets have a high potential to meet the overall goal of fusion research to develop an economically and environmentally attractive energy source. They offer the possibility to design mechanically simple blanket segments, employ a high-temperature, low-pressure coolant, allow for a high power density, and as consequences of these, achieve high efficiency and av...

In this paper, energy and exergy analysis of typical gas turbines is performed using average hourly temperature and relative humidity for selected Gulf cities located in Saudi Arabia, Kuwait, United Arab Emirates, Oman, Bahrain and Qatar. A typical gas turbine unit of 42 MW is considered in this study. The electricity production, thermal efficiency, fuel consumption differences between the ISO ...

The 10MW high temperature gas-cooled test modular reactor coupled with direct gas-turbine cycle (HTR-10GT) is designed by the Institute of Nuclear Energy Technology (INET) of Tsinghua University in China, in order to experimentally validate the possibility of creating high performance plants with direct closed gas-turbine cycle and the technology for future commercial applications. The vertical...

This paper presents a unified approach based graph theory and system theory postulates for the modeling and analysis of Simple open cycle Gas turbine system. In the present paper, the simple open cycle gas turbine system has been modeled up to its subsystem level and system variables have been identified to develop the process subgraphs. The theorems and algorithms of the graph theory have been...

Remote sensing techniques like LiDAR offer many novel applications to the wind energy community, e.g. fast and accurate measurements of inflow and wake wind fields from the turbine nacelle. The prospects of such a new technique are evaluated with a software tool simulating a nacelle-based LiDAR system. The paper presents the implementation and application of a simulator that has been conceived ...

Lightning protection systems (LPS) for wind power generation is becoming an important public issue. A serious damage of blades, accidents where low-voltage and control circuit breakdowns are frequently occur in many wind farms. A grounding system is one of the most important components required for appropriate LPSs in wind turbines WTs. Proper design of a wind turbine grounding system is demand...

Three-dimensional laser Doppler Anemometry measurements of the turbulent flow field in the vicinity of the baffles in a vessel agitated with a Rushton turbine have been performed. The measurements have provided simultaneously all three components of the instantaneous velocity, and thus information on all elements of the Reynolds stress and anisotropy tensors in addition to data on flow field an...

Improving the performance and durability of gas turbine aircraft engines depends highly on achieving a better understanding of the flow interactions between the combustor and turbine sections. The flow exiting the combustor is very complex and it is characterized primarily by elevated turbulence and large variations in temperature and pressure. The heat transfer and aerodynamic losses that occu...