Artículo
Random Forest model to predict solar water heating system performance
Autor/es | Lillo Bravo, Isidoro
Vera-Medina, J. Fernández-Peruchena, C. Perez Aparicio, Elena López Álvarez, José Antonio Delgado Sánchez, José María |
Departamento | Universidad de Sevilla. Departamento de Ingeniería Energética Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 2023 |
Fecha de depósito | 2023-09-27 |
Publicado en |
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Resumen | This research proposes a Random Forest RF model to replace the experimental tests required by the ISO
9459–5:2007 for predicting the annual energy supplied and the solar fraction covered by a thermosiphon solar
water ... This research proposes a Random Forest RF model to replace the experimental tests required by the ISO 9459–5:2007 for predicting the annual energy supplied and the solar fraction covered by a thermosiphon solar water heating system (TSWHS) for the same locations and daily load volumes that this standard. 38 TSWHS have been tested according to the procedures outlined in the standard ISO 9459-5 and two more have been selected from the Solar Keymark database to get the training and testing data set. From these, data from 36 of the TSWHS were used for RF model training, while data from the remaining four TSWHS were used for its testing. To assess the performance of the RF model, three statistical indicators were calculated: mean absolute percentage error (MAPE), mean absolute error (MAE) and the determination coefficient (R-square). Results show MAPE between 2.94% and 5.86% for the annual energy supplied and the solar fraction and R-Square between 0.995 and 0.998 for the annual energy supplied and between 0.973 and 0.976 for the solar fraction for all locations and daily load volume. Consequently, the RF model could be used successfully to replace the experimental tests required by the Standard. |
Cita | Lillo Bravo, I., Vera-Medina, J., Fernández-Peruchena, C., Perez Aparicio, E., López Álvarez, J.A. y Delgado Sánchez, J.M. (2023). Random Forest model to predict solar water heating system performance. Renewable Energy, 216, 119086. https://doi.org/10.1016/j.renene.2023.119086. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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RE_2023_Lillo_Random_OA.pdf | 2.854Mb | [PDF] | Ver/ | |