Numerical simulation and experimental validation of the ventilation system performance in a heated room
- PDF / 2,266,621 Bytes
- 9 Pages / 595.276 x 790.866 pts Page_size
- 18 Downloads / 204 Views
Numerical simulation and experimental validation of the ventilation system performance in a heated room Sondes Ifa 1 & Zied Driss 1 Received: 30 June 2020 / Accepted: 25 August 2020 # Springer Nature B.V. 2020
Abstract The time spent by the occupant indoor the building is significant; therefore, the central objective of the major research was the evaluation of the thermal sensation for the existing people. This study examines the numerical simulation in a room containing a manikin sitting in front of a computer. The computational fluid dynamics (CFD) tools were considered using ANSYS Fluent 16.2 software. This software exploits the finite volume method that is based on the resolution of the Navier-Stokes equations. The distribution of the temperature, velocity, static pressure, turbulent kinetic energy, turbulent viscosity, and turbulent dissipation is tested in different planes and different directions to characterize the airflow indoor a heated room. Equally, the thermal comfort is examined by calculating the predicted mean vote (PMV). The comparison between the numerical results and the experimental data founded from the literature prove that the supply of airflow was affected by the presence of the heat sources and the thermal climate is considered as a slightly hot. The use of the adequate meshes is in a good agreement with the experimental data and confirms the validity of the numerical approach. Keywords Ventilation . CFD . Manikin . Computer . Airflow . Indoor air quality . PMV
Introduction The heating, ventilation, and air conditioning (HVAC) systems have important energy consumption. In this way, the decrease of the dependence between fossil fuel energy and the building consumption becomes a significant global objective. Furthermore, the time spent by the occupants is very important. For these reasons, it is necessary to maintain a healthy space with reasonable energy consumption (Guo et al. 2004; Calay and Wang 2013; Guo et al. 2012). In this context, several researches have been developed in order to maintain a healthy indoor air keeping a reasonable energy consumption of the HVAC systems. The determination of the factors affecting the humanity and the
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11869-020-00923-6) contains supplementary material, which is available to authorized users. * Sondes Ifa [email protected]; [email protected] 1
Laboratory of Electro-Mechanic Systems (LASEM), National School of Engineers of Sfax (ENIS), Univrsity of Sfax, B.P. 1173, km 3.5 Soukra, 3038 Sfax, Tunisia
environmental quality is well studied by many researches (Khan et al. 2020). In fact, ventilation system can be controlled by a deep knowledge of the characterization of the thermal phenomenon around the occupied zone. Generally, the efficiency of this system is profoundly influenced by the climatic conditions and buildings design. In this way, Chen et al. (2015) followed the effect of the heat flux using a heat gain. It generates the heat flux for the maniki
Data Loading...
