Quality Function Deployment (Qfd) Based Expert System for Renewable Energy Structures. A Wind Turbine Case Study

Abstract

Most of the European countries have implemented large renewable energy systems that use wind energy, solar energy and water energy. In our country only water energy was used for many years. In the last period there is an obvious orientation towards the use of all types of renewable energy systems, which are both efficient and environmental friendly. The objective of our paper is to design an instrument for the evaluation of the best suited renewable energy system for different areas and type of use. Generally, the evaluation is made using some kind of expert system (ES) based on general rules. The novelty of our approach is the integration of the Quality Function Deployment (QFD) method in this evaluation process. The main advantage of the use of QFD method is that it offers a means to globally evaluate the best suited renewable energy system based on the specified requirements and the quality characteristics of the available systems. The QFD based expert system is validated by evaluating the best suited types of wind turbines for several different areas.

A low cost solution to monitor environmental parameters in industrial area perimeters

“…Here, the quantities (1) S R , (2) S R represents the sensor resistance values corresponding to concentrations (1) C [%] and respectively ) 2 ( C [%] gas in environmental air and the quantity C m represent the arithmetic mean value of these concentrations. Thus, is possible by using only the three probes of gas concentration C i and based on the experimental measuring the corresponding R Si values of the sensor resistance it ca be compute the three quantities C m ,…”

“…If the parameters are monitored at a long distance from the data acquisition points we have a remote monitoring system. Selecting and using the right equipment for remote monitoring and control applications can introduce some challenges to be solved [1], [2]. Selecting and using the right equipment for remote monitoring and control applications can introduce some challenges to be solved.…”

Consequence modelling of a truck explosion

“…Setting up the initial condition models based on computational fluid dynamics represents the first step for the computational analysis of accident consequences, first of all being required to estimate the amount of materials involved in the accident and the emission rate [34][35][36][37][38][39]. However, this is very hard to know all the factors involved in such a modelling, therefore being required to use simplified assumptions or standard models [40][41][42].…”

Research on solar radiation potential as a source of renewable energy in the Motru area

“…In order to control the angle of inclination, control systems are used to position the tilt angle of the photovoltaic panel, for which the element of inclination angles provide prescribing, either once a month, either once per season. Items, the most widely used in controlling the angle of inclination of a photovoltaic module, are developed around DC actuators and related drivers [11][12][13]. For an optimal positioning of the photovoltaic panel towards the Sun, in addition to the adjustment system of the tilt angular position, it is normally used, and a system for adjusting the angular position of bearing of the photovoltaic panel.…”