Artificial Neural Network Approaches for Predicting the Heat Transfer in a Mini-Channel Heatsink with Alumina/Water Nanofluid

Document Type : Full Lenght Research Article

Authors

1 Mechanical Engineering Department, Faculty of Engineering, Lorestan University, P.O. Box 68151-44316, Khorramabad, Iran

2 Mechanical Engineering Department, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada

3 Department of Mechanical Engineering, National Cheng-Kung University, Tainan 70101, Taiwan

4 Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 10608, Taiwan

5 Research Center of Energy Conservation for New Generation of Residential, Commercial, and Industrial Sectors, National Taipei, University of Technology, Taipei 10608, Taiwan

Abstract

This work uses artificial neural networks to evaluate heat transfer in a mini-channel heatsink using an alumina/water nanofluid. The multi-layer perceptron (MLP) and radial basis function (RBF) neural networks are employed for the modeling. To apply the artificial neural network analysis, 60 data of experimental works are utilized. The outcomes depicted that the simulated annealing (SA) technique significantly increased the performance of the RBF network, although the optimal MLP structure was discovered by trial and error. The optimized RBF network carried over more data with less than 2% errors as compared to the MLP. While the results of the MLP network showed that the average relative error for the test data set was 2.0496%, this value was 1.417% for the RBF network. The modeling time is a significant determining element when choosing the optimal technique. The RBF network optimization took longer than 60 minutes, even though all MLP structures were run 100 times in less than 15 minutes. In summary, artificial neural networks are effective instruments for simulating these kinds of processes, and their application can save a lot of time-consuming experimentation. Additionally, the RBF network outperforms the MLP in terms of precision while requiring less processing time.

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Main Subjects


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