Banca de DEFESA: IASMIM MARIA SOARES DOS SANTOS ALMEIDA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : IASMIM MARIA SOARES DOS SANTOS ALMEIDA
DATE: 26/10/2022
TIME: 14:00
LOCAL: SALA VIRTUAL
TITLE:

Balance between daylight availability and the glare reduction in the environment with external shaded
windows and special glasses

KEY WORDS:

daylight performance, shaded windows, visible light transmission, Dynamic
Daylighting, glare, sky glare.

PAGES: 81
BIG AREA: Ciências Sociais Aplicadas
AREA: Arquitetura e Urbanismo
SUBÁREA: Tecnologia de Arquitetura e Urbanismo
SPECIALTY: Adequação Ambiental
SUMMARY:

This master thesis assesses the balance between daylight availability at the work plan
and the glare reduction in the user field of view of office environment, for external shaded
windows with different dimensions, visible light transmission, and sky view, based on
software orientated to the design process. The target problem relates to the intense and
abundant daylight in a warm and humid climate at low latitude, which effortlessly illuminates
and prompts glare, causing the closing of blinds and curtains and consequently obstructing the
daylight and exterior view. The assessment focused on windows 100% shaded during the
occupation, with horizontal external devices, to avoid the glare caused by sunlight. Different
combinations of window sizes, visible sky factors, and visible light transmission were planned
to investigate the impact on the work plane illuminance and uncomfortable glare on the users'
field of view. The autonomy of natural light (sDA) and the shading masks were simulated in
the Dynamic Daylighting software, a highly interactive tool to support the performance
analysis. The sDa results were analyzed for three illuminance levels (150lux, 300lux, and
500lux) and occurrence (50%, 75%, and 95%). The field of view was analyzed concerning the
coincidence with the sky, its bright and the bright reduction due to the visible light
transmission, and the Perceived Glare Level (PGL), based on six users' positions, three view
directions (frontal, diagonal, and lateral), and two fields of view (central and peripheric). The
shaded window was unfeasible to reach 500lux due to the sky view reduction to 1/3 of the sky
dome. There is 300lux autonomy for half depth room and 150lux for the whole room. This
performance is restricted to large windows, visible sky, and visible light transmission above
0,66. The antagonism impact of windows characteristics on both assessment parameters was
confirmed, as well as the importance of the balance between both.

COMMITTEE MEMBERS:
Interno - 1454154 - ALDOMAR PEDRINI
Interno - 2508732 - HEITOR DE ANDRADE SILVA
Externo à Instituição - LUCIANO DUTRA - UNISUL/SC