ANN vs. MARS modeling: Experimental performance enhancement of MgO-TiO<sub>2</sub>/water binary and TiO<sub>2</sub>/water mono nanofluids in a plate-fin heat exchanger

Elibol E. A., Gönülaçar Y. E., Aktaş F., Tigli B.

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, cilt.117, 2026 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 117
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1016/j.ijheatfluidflow.2025.110022
  • Dergi Adı: INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Gazi Üniversitesi Adresli: Evet

Özet

This study has experimentally examined the cooling performance/heat transfer rate, effectiveness, and UA product of a PFHE (plate-fin heat exchanger) used on a motorcycle, employing MgO-TiO2/water binary and TiO2/water mono nanofluids, in addition to pure water, at various concentrations (0 %, 0.00645 %, 0.0125 %, 0.025 % and 0.05 %), inlet temperatures (70 degrees C and 80 degrees C), and flow rates (6.5 LPM, 9.5 LPM and 12.5 LPM). The maximum heat transfer rate, effectiveness, and UA product values observed were 673.868 W, 0.856, and 27.768, respectively, with a 0.025 % concentration of MgO-TiO2/water binary nanofluid at an inlet temperature of 80 degrees C and a flow rate of 6.5 LPM. The heat transfer rate, effectiveness, and UA product values for pure water (0 %) under the same conditions were 591.152 W, 0.809, and 23.534, respectively. By applying the acquired data, both ANN and MARS were employed to predict effectiveness, and a comparison was established between the two methods. According to the best result for ANN (Tin = 80 degrees C and MgO-TiO2/water), the MARS result indicates an MSE of 1.17 x 10-5, RMSE of 0.0034, SSE of 0.0002, MAPE of 0.3411, and an R2 of 0.9921. By comparison, the ANN results indicate an MSE of 2.52 x 10-6, RMSE of 0.0016, SSE of 3.78 x 10-5, MAPE of 0.0876, and an R2 of 0.9983. According to the best result for MARS (Tin = 80 degrees C and TiO2/water), the ANN result shows an MSE of 6.03 x 10-5, RMSE of 0.0025, SSE of 9.05 x 10-5, MAPE of 0.1359, and an R2 of 0.9961. On the other hand, the MARS results exhibit a MSE of 3.97 x 10-6, RMSE of 0.0020, SSE of 5.96 x 10-5, MAPE of 0.2003, and an R2 of 0.9974.