Banca de DEFESA: VIVIANE DINIZ HAZBOUN

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : VIVIANE DINIZ HAZBOUN
DATE: 02/07/2024
TIME: 15:30
LOCAL: https://us02web.zoom.us/j/82858554102?pwd=NjVBR2l6THpqT3NxbGpWbncvR00xdz09
TITLE:

Impact of large fenestration facade and occupants' interaction on thermal and daylighting performance of office building

KEY WORDS:

Highly glazed facades; daylight; glare control; occupant

PAGES: 161
BIG AREA: Ciências Sociais Aplicadas
AREA: Arquitetura e Urbanismo
SUBÁREA: Tecnologia de Arquitetura e Urbanismo
SPECIALTY: Adequação Ambiental
SUMMARY:

The use of highly glazed facades has spread worldwide in office buildings to combine aesthetics, transparency and view out. The windows bring benefits through daylight use and views to outside, but can cause discomfort due to glare from direct sunlight on the workplane or the sky brightness in the field of view. Occupants react by closing internal blinds to mitigate the discomfort, compromising the functions of the window. The daylight performance can be preserved by avoiding or mitigating discomfort glare, considering the interdependence between façade characteristics and room occupancy. The aim of this research is to determine design configurations for office environments with high glazed facades capable of providing daylight use and view out in a humid tropical climate by mitigating glare. Different combinations of facade system (orientation, window to wall ratio, sky view factor and visible transmittance), occupant position (distance from the window and field of view) and occupant behavior (frequency of interaction and glare perception) are investigated in the climatic context of Natal/RN. The method consists of parametric simulations in Climate Studio/Grasshopper and proposes a multicriteria approach to relate Spatial Daylight Autonomy (sDA), mean annual illuminance, view out and Daylight Glare Probability (DGP). Results demonstrate that the user’s field of view and the distance from the window are the most sensitive parameters for glare occurrence and the consequent compromise of the window. The main strategy for harnessing daylight is to determine the façade design based on internal occupancy, as well as to plan occupancy according to the façade’s performance. The perimetere zone should be avoided because it tends to compromise the window in most cases. The daylight use can vary by up to 95% of the area when considering the occupant, demonstrating that the design of highly glazed façades must recognize room occupancy.

COMMITTEE MEMBERS:
Presidente - 1454154 - ALDOMAR PEDRINI
Interna - 1149643 - GLEICE VIRGINIA MEDEIROS DE AZAMBUJA ELALI
Externo à Instituição - RICARDO CARVALHO CABUS - UFAL
Externo à Instituição - ROBERTA VIEIRA GONÇALVES DE SOUZA - UFMG
Externa à Instituição - SOLANGE MARIA LEDER - UFPB