This paper presents a tool developed to obtain qualitative trend representations from signals, Qualtras. The aim of such a type of description is to offer an understandable representation of process behavior based on the concept of qualitative episode. The tool is intended to be used as a numeric to qualitative interface for supervisory applications. The applicability of this tool is demonstrat...

Paper presents algorithm for localization and classification of indications in the field of nondestructive defectoscopy of steam generator tubes of nuclear power plants by multifrequency eddy current method. One of the solutions how to solve this task seems to be using of recurrent neural network (RNN). Pure non-filtered signal from measurement probe was used as an input of RNN. Combination of ...

The recent widespread diffusion of Combined Cycle Power Plants (CCPPs) is due to crucial technological advantages with respect to oil or coal fired plants. Among them, CCPPs guarantee higher efficiency and lower emissions. However, in the context of a deregulated energy market, better performances of the CCPPs control schemes are required during load transitions to allow for their use in grid f...

The current electricity demand is increasing, and now the government has involved third parties in the implementation of electricity so that investors compete in building infrastructure in order to apply electricity. Thermal power is one source that has a fast break event point compared to other resources that more interested investors even with all forms of pollution caused. A form of heat pow...

Recent R&D activities in nuclear fusion have identified the DEMO reactor as ITER successor, aiming at demonstrating technical feasibility of plants, along with their commercial exploitation. However, pulsed operation machine causes an “unconventional” system, posing unique challenges to functional steam generator, for which it is necessary define and qualify a reference configuration DEMO. ...

Biomass based Indirectly Heated combined heat and power plant can be an excellent option for community scale power generation. The thermal performance of such a plant employing air-turbo generator block and bottoming steam turbine block has been analyzed over a range of pressure ratio (2-16) and for different turbine inlet air temperatures (1073, 1273 and 1373K). The conventional GT combustion ...

Maintainability is an important character which is given by product design process. The maintainability design criteria and measure index used in product maintainability analysis are summarized and discussed in this paper. A product maintainability design method is studied by integrating the product feature model, maintainability design criteria with measure index. Product feature model can be ...