Numerical simulation and experimental validation of the ventilation system performance in a heated room

被引:7
作者
Ifa, Sondes [1 ]
Driss, Zied [1 ]
机构
[1] Univ Sfax, Lab Electromech Syst LASEM, Natl Sch Engineers Sfax ENIS, BP 1173,Km 3-5 Soukra, Sfax 3038, Tunisia
关键词
Ventilation; CFD; Manikin; Computer; Airflow; Indoor air quality; PMV; DISPLACEMENT VENTILATION; STRATUM VENTILATION; THERMAL COMFORT; AIR; EXPOSURE;
D O I
10.1007/s11869-020-00923-6
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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.
引用
收藏
页码:171 / 179
页数:9
相关论文
共 23 条
[1]   Numerical investigation of height impact of local exhaust combined with an office work station on energy saving and indoor environment [J].
Ahmed, Ahmed Qasim ;
Gao, Shian .
BUILDING AND ENVIRONMENT, 2017, 122 :194-205
[2]  
[Anonymous], 2012, 14.5 Theory Guide
[3]  
ASHRAE, 2017, ANSI/ASHRAE Standard, P55
[4]   Environmental pollution and COVID-19 outbreak: insights from Germany [J].
Bilal ;
Bashir, Muhammad Farhan ;
Benghoul, Maroua ;
Numan, Umar ;
Shakoor, Awais ;
Komal, Bushra ;
Bashir, Muhammad Adnan ;
Bashir, Madiha ;
Tan, Duojiao .
AIR QUALITY ATMOSPHERE AND HEALTH, 2020, 13 (11) :1385-1394
[5]   Dispersal of exhaled air and personal exposure in displacement ventilated rooms [J].
Bjorn, E ;
Nielsen, PV .
INDOOR AIR, 2002, 12 (03) :147-164
[6]   A hybrid energy efficient building ventilation system [J].
Calay, Rajnish Kaur ;
Wang, Wen Chung .
APPLIED THERMAL ENGINEERING, 2013, 57 (1-2) :7-13
[7]   Floor heating and cooling combined with displacement ventilation: Possibilities and limitations [J].
Causone, Francesco ;
Baldin, Fabio ;
Olesen, Bjarne W. ;
Corgnati, Stefano P. .
ENERGY AND BUILDINGS, 2010, 42 (12) :2338-2352
[8]   Climate comfort depending on different altitudes and land use in the urban areas in Kahramanmaras City [J].
Cetin, Mehmet .
AIR QUALITY ATMOSPHERE AND HEALTH, 2020, 13 (08) :991-999
[9]   Characteristics of Human Body Micro-thermal Environment under Displacement Ventilation [J].
Chen, Yong ;
Wang, Jun ;
Xiong, Feng ;
Liang, Weijie ;
Wang, Suo ;
Ding, Pei .
9TH INTERNATIONAL SYMPOSIUM ON HEATING, VENTILATION AND AIR CONDITIONING (ISHVAC) JOINT WITH THE 3RD INTERNATIONAL CONFERENCE ON BUILDING ENERGY AND ENVIRONMENT (COBEE), 2015, 121 :1375-1381
[10]   Measurement of clothing thermal insulation and moisture vapour resistance using a novel perspiring fabric thermal manikin [J].
Fan, JT ;
Chen, YS .
MEASUREMENT SCIENCE AND TECHNOLOGY, 2002, 13 (07) :1115-1123