@article{Camaraza-Medina_Mortensen_Blanco-Garcia_2024, title={Development and validation of an improved heat transfer calculation model for rough tubes}, volume={40}, url={https://revista.ismm.edu.cu/index.php/revistamg/article/view/2470}, abstractNote={<p>An improved method for heat transfer calculation inside rough tubes is provided. The model has been obtained from a second assessment developed early by the authors on fluid flow in single-phase inside rough tubes. The proposed correlation has been verified by comparison with a total of 1 666 experimental available data of 34 different fluids, including air, gases, water and organic liquids. The proposal model covers a validity range for Prandtl number ranging from 0.65 to 4.52x10<sup>4</sup> values of Reynolds number from 2.4x10<sup>3 </sup>to 8.32x10<sup>6</sup>, a range of relative roughness ranging from 5x10<sup>-2</sup> to 2x10<sup>-6</sup> and viscosity ratio from 0.0048 to 181.5. The proposed model provides a good correlation for 10<sup>4</sup>≤Re and Re&lt;10<sup>4</sup>, with an average error of 18.3% for 70.4% of the data and 16.6% for 74.8% of the data, respectively. The method presents a satisfactory agreement with the experimental data in each interval evaluated; therefore, the model can be considerate accurate enough for practical application. At the present time, in the available technical literature, a method with similar characteristics is unknown.</p>
<p> </p>}, number={1}, journal={Minería y Geología}, author={Camaraza-Medina, Yanan and Mortensen, Michael and Blanco-Garcia, Yamilka}, year={2024}, month={jun.}, pages={25–45} }