Use of Artificial Neural Networks for Prediction of the Convective Heat Transfer Coefficient in Evaporative Mini-Tubes
| Autor: | Héctor Martín Durán-García, Patricia Lara-Vázquez, Ricardo Romero-Méndez, Arturo Pacheco-Vega, Francisco G. Pérez-Gutiérrez, F. Oviedo-Tolentino |
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| Rok vydání: | 2016 |
| Předmět: |
compact evaporators
minitubos Convective heat transfer Chemistry 020209 energy mini-tubes evaporadores compactos Thermodynamics Refrigeration 02 engineering and technology Heat transfer coefficient Mechanics sistemas térmicos redes neuronales artificiales Refrigerant convective heat transfer Heat flux Heat transfer 0202 electrical engineering electronic engineering information engineering transferencia de calor por convección artificial neural networks Evaporator thermal systems Degree Rankine |
| Zdroj: | Ingeniería, Investigación y Tecnología. 17:23-34 |
| ISSN: | 1405-7743 |
| DOI: | 10.1016/j.riit.2016.01.003 |
| Popis: | In this work, artificial neural networks (ANNs) are used to characterize the convective heat transfer rate that occurs during the evaporation of a refrigerant flowing inside tubes of very small diameter. An experimental setup based on an inverse Rankine refrigeration cycle is used to obtain the heat transfer data in an R-134a refrigerant mini-tube evaporator set operated under constant heat flux conditions. A considerable amount of data was acquired to map the thermal performance of the evaporative process under analysis, 75% of which were used for training the ANN and 25% were reserved for prediction purposes. Several neural network configurations were trained and the most accurate was selected to predict the thermal behavior. The results obtained in this investigation reveal the convenience of using ANNs as an accurate predictive tool for determination of convective heat transfer rates inside mini-tube evaporators. |
| Databáze: | OpenAIRE |
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