PUBLICACIONES últimos 10 años

Chi, D.A.; Moreno, D.; Navarro, J. (2017). Design optimisation of perforated solar façades in order to balance daylighting with thermal performance R

Revista:
Building and Environment, 132, 170-180

Impacto:
SJR (2019): 1.871. BUILDING AND CONSTRUCTION, Q1 (8/248)
CIVIL AND STRUCTURAL ENGINEERING, Q1 (15/408)
ENVIRONMENTAL ENGINEERING, Q1 (6/184)
GEOGRAPHY, PLANNING AND DEVELOPMENT, Q1 (18/728)

DOI:
10.1016/j.buildenv.2017.09.007

Abstract:
On fully-glazed building façades perforated solar screens (PSS) are often used as an outer skin in order to
reduce energy consumption and to solve issues such as visual appearance. However, not only must PSS
control solar radiation but they must also provide adequate daylight levels, thus requiring a balanced
solution. Currently, daylighting simulation software enables us to perform efficient daylight analysis of
spaces with PSS. Notwithstanding this, current energy simulation software such as EnergyPlus cannot
deal well with such geometry directly, making the thermal evaluation of PSS an infeasible task. This
paper presents a methodology for achieving an integrated analysis of daylighting and energy consumption
of spaces with PSS during the design stage. Such methodology provides daylight analysis
through DIVA, and thermal analysis through EnergyPlus via DIVA/Grasshopper/Archsim. The aim is to
optimise the dual performance of a balanced PSS solution through controlling its perforation percentage,
matrix and shape, by using the orthogonal arrays (DOA) statistical method. DOA method is efficient in
reducing the number of simulations derived from the combination of the aforementioned variables, and
in identifying the optimal PSS configuration. In comparison to a non-optimised façade located in Seville,
Spain, the predicted optimal PSS achieved a 50% increase in the actual daylit area and a 55% reduction in
the total energy demand.