TY - JOUR ID - 88970 TI - Assessment of Thermal Behavior of a Flat Plate Water Heater Solar Collector at Different Day Times by Computational Fluid Dynamics Method JO - Journal of Solar Energy Research JA - JSER LA - en SN - 2588-3097 AU - Sajadipour, Farzaneh AU - Kheiralipour, Kamran AU - Mirzaee- Ghaleh, Esmaeil AU - Rabani, Hekmat AD - Mechanical Engineering of Biosystems Department, Ilam University, Ilam, Iran. AD - Assistant Professor in Mechanical Engineering of Agricultural Machinery Department. Razi University, Kermanshah. Iran AD - Mechanical Engineering of Biosystems, Razi University, Kermanshah, Iran. Y1 - 2022 PY - 2022 VL - 7 IS - 4 SP - 1134 EP - 1142 KW - Solar energy KW - Flat plate solar collector KW - Computational Fluid Dynamics KW - Fluid temperature DO - 10.22059/jser.2022.333698.1227 N2 - Water heaters are important tools to use solar energy, as one of the main renewable energy sources, for increasing water temperature. The present research was conducted to predict the outlet fluid temperature of a solar water heater with a flat plate collector by the computational fluid dynamics method. Initially the ambient temperature, the temperature of the inlet and outlet fluid, and the temperature of the collector were experimentally measured from 10 am to 18 pm every two hours. The fluid flow tubes of the flat plate solar collector were simulated in the ANSYS Fluent Software. The temperature of the outlet fluid was calculated based on the measured variables by the computational fluid dynamics method. For that, k-ε turbulent model was used for simulating the collector in the software. A validation was carried out between experimental data and numerical results. The results of the simulation showed that computational fluid dynamics can predict the outlet fluid temperature with errors between 1 to 22%. In most cases, the predicted temperatures were higher than those of experimented data and higher errors were observed for higher flow rates. UR - https://jser.ut.ac.ir/article_88970.html L1 - https://jser.ut.ac.ir/article_88970_a12710c29ea65a1e0f81f63d2b528235.pdf ER -