Dynamic thermal performance of multilayer hollow clay walls filled with insulation materials: Toward energy saving in hot climates

Chihab, Yassine; Garoum, Mohammed; Laaroussi, Najma

doi:10.1016/j.enbenv.2022.08.001

Cited by 6 publications

(1 citation statement)

References 41 publications

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“…Navier-Stokes equations, which involve the conservation of continuity (mass), the quantity of motion, and energy, as seen in Equations ( 1), (2), and (3), respectively, were used to determine the behavior of the working fluids during the heat exchange [21,22]. Mathematical models can be selected according to the characteristics of the study to calculate the influence of the conditions in the heat transfer process through walls, as it was presented in the work of Chihab et al [23].…”

Section: Governing Equationsmentioning

confidence: 99%

Numerical Simulation of the Heat Transfer Inside a Shell and Tube Heat Exchanger Considering Different Variations in the Geometric Parameters of the Design

Estupiñán-Campos,

Quitiaquez,

Nieto-Londoño

et al. 2024

Energies

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The present study aims to analyze the heat transfer variations in different models of shell and tube heat exchangers considering geometric variations in the baffle angles and in the tube’s profiles. Each baffle configuration and geometric variation in the profiles were tested under different mass flow rates (0.25, 0.5, 0.75, and 1 kg·s−1) in the shell to study the heat transfer improvement. The models were simulated using a CFD simulation software ANSYS Fluent including an experimental geometry which was used to validate the simulation process. The experiment results are in good agreement with the CFD results. The analysis of the results shows that an angle of 60° in the baffles generated the highest heat flow (more than 40 kW) with an inclination to the cold flow inlet and a mixed distribution considering a mass flow rate of 1 kg·s−1 in the shell. In addition, the horizontal elliptic profile achieved a heat flow higher than 29 kW with a mass flow rate of 0.5 kg·s−1 in the shell.

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Section: Governing Equationsmentioning

confidence: 99%