Simulation Analysis for the Air Conditioning System of a Conference Hall

Abstract

The conference hall airflow type is one of the most representative and typical pattern for air-conditioning of large space area. However, little quantitative knowledge has been presented especially for optimum supply air temperature and velocity for the concern of thermal comfort and energy saving. In this study, numerical simulation of a full scale conference hall has been carried out extensively for the exhibition hall in Taiwan. Different air velocity and temperature of supply air have been evaluated from ceiling to floor level under audience seats. Through Computational Fluid Dynamic (CFD) of the temperature distribution and airflow distribution, better indoor environmental parameters as well as energy saving concern of the conference hall could be achieved. The simulation results show that air velocity range in conference hall is 0.1~1.0 m/s, and temperature distribution is between 18~24ËšC, which presents satisfactory thermal comfort. Different temperature and velocity of supply air can be evaluated not only to meet the design specification of 20~25ËšC but also for the thermal comfort and energy-efficient concern. It implements not only the design strategies for practice different design temperature and air velocity, but also reduce running cost at full operation condition.