Petr Zelensky, Martin Bartak, Jan L.M. Hensen
Bibliographic info:
Building Simulation, 2015, Hyderabad, India

The paper presents an application of a new method to simplify models of heat sources in CFD simulations of large spaces exposed to variable occupancy patterns. The previously developed approach is applied in a real scenario of a recently refurbished former church built in 14th century, now used as a concert and conference hall with up to 350 visitors staying for different period during each day. The investor of the restoration was concerned about temperature fluctuations caused by variable occupancy and their possible negative impact on the historical stucco decorations and on the original wooden trusses of the former church. Moreover, only natural ventilation through window openings at the street level and roof windows is possible in order to preserve the original look of the building. Study elaborated in the paper is based on the results of CFD simulations with simplified models of visitors acting as heat sources under two different occupancy scenarios.