Open Access

ARTICLE

Impact of the Inlet Flow Angle and Outlet Placement on the Indoor Air Quality

by Ikram Mostefa Tounsi^1,*, Mustapha Boussoufi¹, Amina Sabeur¹, Mohammed El Ganaoui²

1 Laboratoire des Sciences et Ingénierie Maritimes, Faculté de Génie Mécanique. Université des Sciences et de la Technologie d’Oran Mohammed Boudiaf, BP 1505 El M’Naouer, Oran, 31000, Algérie
2 Laboratoire LERMAB IUT Longwy, Université de Lorraine, Nancy, 54000, France

* Corresponding Author: Ikram Mostefa Tounsi. Email:

(This article belongs to the Special Issue: Materials and Energy an Updated Image for 2023)

Fluid Dynamics & Materials Processing 2024, 20(11), 2603-2616. https://doi.org/10.32604/fdmp.2024.050641

Received 12 February 2024; Accepted 11 July 2024; Issue published 28 October 2024

Abstract

This study aims to optimize the influence of the inlet inclination angle on the Indoor Air Quality (IAQ), heat, and temperature distribution in mixed convection within a two-dimensional square cavity filled with an air-CO₂ mixture. The air-CO₂ mixture enters the cavity through two inlet openings positioned at the top wall, which is set at the ambient temperature (T_C). Three values of the Reynolds numbers, ranging from 1000 to 2000, are considered, while the Prandtl number is kept constant (Pr = 0.71). The temperature distribution and streamlines are shown for Rayleigh number (Ra) equal to 10⁴, three inlet inclination angles ϕ (0, π/6 and π/4) and three CO₂ concentrations values (1500, 2500, 3500 ppm) applied at both hot vertical walls (maintained at a constant temperature T_H). A finite volume method is used under the assumption of two-dimensional laminar flow to solve the Navier-Stokes and energy equations. The results indicate that inlet inclination angle has an impact on the indoor air quality (IAQ), which, in turn, affects the heat transfer distribution and thermal comfort within the cavity.

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Keywords

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