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- W4313226816 endingPage "100867" @default.
- W4313226816 startingPage "100867" @default.
- W4313226816 abstract "In this paper, the authors investigated the shell and helically coiled finned tube heat exchanger numerically and experimentally. At first they investigated the shell and helically coiled finned tube heat exchanger with simple annular fins for the first time. They considered nine cases for experimental investigation, in which three different fluid flow rates are considered for each side. Then they studied the geometry numerically using Ansys Fluent 18.2 software. After validating the numerical model, the authors suggested four new fin geometries. They studied all the geometries numerically and selected the stepped fin geometry as the superior geometry. The fluid flow inside the tube in this work is in the turbulent flow range and the realizable k−ε turbulence model is used. The authors proposed correlations using the response surface methodology and Taguchi method to predict the mean Nusselt number on the shell and tube sides. The presented correlations have good accuracy for calculating the Nusselt numbers (maximum 10% error). The results show that the mean Nusselt number of the coil side is the same in all geometries, and the Reynolds number of each side has almost no effect on the mean Nusselt number of the other side, and with increasing the fin pitch, the mean Nusselt number of the shell side decreases. The mean Nusselt number of the shell side is 80.79% higher for the stepped fin geometry (superior geometry) compared to the simple annular fin at best." @default.
- W4313226816 created "2023-01-06" @default.
- W4313226816 creator A5017742295 @default.
- W4313226816 creator A5031958166 @default.
- W4313226816 date "2023-03-01" @default.
- W4313226816 modified "2023-09-30" @default.
- W4313226816 title "Selecting superior fin geometry among four suggested geometries for shell and helically coiled finned tube heat exchangers with numerical simulation and experimental validation" @default.
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- W4313226816 doi "https://doi.org/10.1016/j.rineng.2022.100867" @default.
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