Abstract
This study is intended to highlight the role of the ventilation and air conditioning system for a theatre. It was chosen as a case study the "Vasile Alecsandri" National Theatre of Jassy. The paper also sought to make a comparison in three distinct scenarios for HVAC Main Hall system - ventilation and air conditioning system of the Main Hall doesn’t work; only the ventilation system of the Main Hall works and ventilation and air conditioning system of the Main Hall works. For analysing the comfort parameters, the ANSYS-Fluent software was used to build a 2D model of the building and simulation of HVAC system functionality during winter season, in all three scenarios. For the studied scenarios, the external conditions of Jassy and the indoor conditions of the theatre, when the entire spectacle hall is occupied were considered. The main aspects evaluated for each case were the air temperature, air velocity and relative humidity. The results are presented comparatively as plots and spectra of the interest parameters.
Highlights
The subject of this study is the Main Hall of “Vasile Alecsandri” National Theatre of Jassy – the space where the entire audience is present during spectacles
The Main Hall HVAC system of the real building “Vasile Alecsandri” National Theatre of Jassy was studied by using a 2D model, with specific software ANSYS-Fluent
The Main Hall HVAC system is subjected to an analysis of its functionality, by evaluating the supplied parameters when operating in three different scenarios as follows: First scenario - Ventilation and air conditioning system’ of the Main Hall doesn’t work; Second scenario – Only the ventilation system of the Main Hall works; Third scenario - Ventilation and air conditioning system of the Main Hall works
Summary
The subject of this study is the Main Hall of “Vasile Alecsandri” National Theatre of Jassy – the space where the entire audience is present during spectacles. This represents a voluminous space with 10.7 m height, 18 m width and 21 m length. The ventilation of the Main Hall is realized by using three independent systems for introducing the fresh air in different zones: stall, lodges and balcony. The exhaust air is evacuated through one system, placed under the. The total airflow in the auditorium Main Hall is of 21,000 m3/h. The ventilation is balanced, meaning that the introduced airflow is equal with the evacuated one. The problem studied consist of the functionality of the HVAC system during the theatre show, in winter time, for three distinct scenarios: First scenario - Ventilation and air conditioning system of the Main Hall doesn’t work; Second scenario – Only the ventilation system of the Main Hall works; Third scenario - Ventilation and air conditioning system of the Main Hall works
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