期刊
SOLAR ENERGY
卷 84, 期 5, 页码 801-806出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2010.02.003
关键词
Solar thermal system; Thermal stratification; Water load; Modelling; Neural network
资金
- [OTKA K 69094]
In this study an artificial neural network (ANN) model is introduced for modelling the layer temperatures in a storage tank of a solar thermal system. The model is based on the measured data of a domestic hot water system. The temperatures distribution in the storage tank divided in 8 equal parts in vertical direction were calculated every 5 min using the average 5 min data of solar radiation, ambient temperature, mass flow rate of collector loop, load and the temperature of the layers in previous time steps. The introduced ANN model consists of two parts describing the load periods and the periods between the loads. The identified model gives acceptable results inside the training interval as the average deviation was 0.22 degrees C during the training and 0.24 degrees C during the validation. (C) 2010 Elsevier Ltd. All rights reserved.
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