A Comparative Study for Forced Ventilation Systems in Industrial Buildings to Improve the Workers’ Thermal Comfort

Sustainability

卷:13

Reda M. H. Aly¹  Bahaa Elboshy²  Abdullah Mossa Y. Alzahrani³  Mohamed I. Elhadary⁴ 

[1] Department of Architectural Engineering, Faculty of Engineering, Al Azhar University, Cairo 11765, Egypt;

[2] Department of Architectural Engineering, Faculty of Engineering, Tanta University, Tanta 31511, Egypt;

[3] Department of Civil Engineering, Faculty of Engineering, Taif University, Taif 21944, Saudi Arabia;

[4] Department of Mechanical Engineering, Faculty of Engineering, Tanta University, Tanta 31511, Egypt;

关键词: CFD;    mechanical ventilation;    industrial buildings;    thermal comfort;    air quality;   

DOI  :  10.3390/su131810267

来源: DOAJ

【 摘 要 】

The appropriate ventilation for factory spaces with regard to volume flow rate and air velocity inside the factory is one of the most important factors in the improvement of the thermal comfort of workers and in the reduction of the percentage of pollution they are exposed to, which in turn helps to improve the work environment and increase productivity. It also could improve the performance of machines. Hence, overheating can cause various problems and malfunctions. In this study, three types of mechanical ventilation systems are compared: the wall fan extract ventilation system, the roof fan extract ventilation system, and the spot cooling system. The Ansys software has been used to conduct the computational fluid dynamics (CFD) simulations for the different cases and the ventilation effectiveness factor (VEF) has been used to compare the performances of the three systems. The ventilation factor notably relies on the temperature distribution produced through the modeling and the results show that the most optimal system that can be used for similar factory spaces is the forced ventilation system. Finally, it is also the best in terms of energy consumption, despite the increase in the initial cost of its installation.

【 授权许可】

Unknown