An ESRU Consultancy Case Study
The
project
ESRU
Consultancy was commissioned by Hubert Penicaud Architects to undertake
a design assessment of the Brunoy Theatre in Paris. It project was at the concept
stage and the client wished to know the heating/cooling load distribution and
annual energy consumption for alternative ventilation strategies.
The challenge
The study required comprehensive dynamic thermal simulations with integrated CFD to address the distribution of indoor comfort..
The approach
The CAD model was created based on AutoCAD drawings provided by the client. The same CAD model was used for both dynamic thermal and CFD simulations. A detailed study with high resolution thermal modelling were carried out to predict the loads from occupants, the sales void, the stalls, balcony, etc. to allow the gains from the plant units to be incorporated, and the roof space, where the hot air is extracted. The HVAC is configured to supply the fresh air at low velocity through diffusers under the seats, on the stages, and the technical void. The results were then processed to generate boundary conditions for CFD simulations. The CFD model included over 420 diffusers distributed all over the space and 500+ thermal and temperature patches.
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The result
Annual simulations were undertaken and the results for the summer months used to gauge the effect of the shading devices on the cooling load. Further simulations were then carried out to study HVAC plant operation under extreme summerconditions. Based on the results, a design for the air distribution system and diffusers was recommended. The following figures show predicted air temperatures, plant operating conditions and typical air flows.
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