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Title: Development of a Neural Network-Based Fault Diagnostic System
Authors: Florides, Georgios A. 
Lalot, Sylvain 
Desmet, Bernard 
Kalogirou, Soteris A. 
Florides, Georgios A. 
Lalot, Sylvain 
Desmet, Bernard 
Keywords: Fault diagnostic system;Artificial Neural Networks (ANN);Solar water heating systems
Issue Date: 2006
Source: Proceedings of the IX World Renewable Energy Congress, Florence, Italy
Abstract: The objective of this work is to present the development of an automatic solar water heater (SWH) fault diagnosis system (FDS). The FDS system consists of a prediction module, a residual calculator and the diagnosis module. A data acquisition system measures the temperatures at four locations of the SWH system. In the prediction module an artificial neural network (ANN) is used, trained with values obtained from a TRNSYS model of a fault-free system operated with the typical meteorological year (TMY) files of Nicosia, Cyprus and Paris, France. Thus, the neural network is able to predict the fault-free temperatures under different environmental conditions. The input data to the ANN are the time of the year, various weather parameters and one input temperature. The residual calculator receives both the current measurement data from the data acquisition system and the fault-free predictions from the prediction module. The system can predict three types of faults; collector faults and faults in insulation of the pipes connecting the collector with the storage tank and these are indicated with suitable labels. The system was validated by using input values representing various faults of the system.
Description: This paper is published in the IX World Renewable Energy Congress, Florence, Italy.
Type: Conference Papers
Appears in Collections:Δημοσιεύσεις σε συνέδρια/Conference papers

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