Prédiction de la distribution de l’écoulement diphasique dans des échangeurs de chaleur à micro-canaux à l'aide d'un réseau neuronal artificiel

研究成果: Article

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Due to the intrinsic complexity of two-phase flow distribution and the limited mathematical flexibility of conventional formulations of the phenomenon, previous attempts generally fall short in the accuracy and applicability of their prediction. To address these issues, this study focuses on methods with higher mathematical flexibility. Specifically, the construction and training of Artificial Neural Network (ANN) is presented for the identification of this complex phenomenon. The interaction of the numerous physical phenomena, occurring at different scales, is thus represented by the network structure, offering a formulation capable of achieving higher accuracy. Experimental data from a full-scale heat exchanger of an air-conditioning system operating over a wide range of conditions are used to train and test the ANN. The network optimisation with Bayesian regularisation against experimental data leads to a structure featuring 4 inputs, 3 hidden layers, and 3 neurons for each layer, which demonstrates deviations on the single output mostly lower than ± 10% and a correlation index higher than 98%, when the whole data set is used for training the ANN. The analysis of the network optimisation for different shares of data used for the network testing, shows higher training and testing accuracy as the number of training data increases, along with no apparent overfitting.

寄稿の翻訳されたタイトルPrediction of two-phase flow distribution in microchannel heat exchangers using artificial neural network
元の言語French
ページ(範囲)53-62
ページ数10
ジャーナルInternational Journal of Refrigeration
111
DOI
出版物ステータスPublished - 2020 3

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering

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