Advanced search
Start date
Betweenand


Daylighting distribution from output of light pipes

Full text
Author(s):
Bruna Luz
Total Authors: 1
Document type: Doctoral Thesis
Press: São Paulo.
Institution: Universidade de São Paulo (USP). Faculdade de Arquitetura e Urbanismo (FAU/SBI)
Defense date:
Examining board members:
Marcia Peinado Alucci; Lucila Chebel Labaki; Leonardo Marques Monteiro; Fernando Oscar Ruttkay Pereira; Alessandra Rodrigues Prata Shimomura
Advisor: Marcia Peinado Alucci
Abstract

The object of this research is the dimensioned of daylighting system with light pipes of square section mirror light pipes. The objective is to propose a mathematical model for the design of daylighting systems with light pipes, using the light pipe efficiency (EDL) for considering the level of average illuminance on the work plan, provide the number of light pipes are necessary. Specifically, pipe with square section of 10cm, 25cm, 30cm, 40cm and 50cm and 1m, 1.5m, 2m, 3m, 4m and 5m lengths, Optimirror Plus coated, were assessed. The method adopted is experimental inductive (testing with model scale for illuminance data acquisition) supported by computational deductive method (verification of empirical results) and comparative analysis of results, providing support to the proposition of mathematical modeling. This modeling is developed based on lumens method e zonal cavity method, verifying its applicability by the correlation of its results with those observed in the empirical tests. The final products of the research are: (1) procedure for testing light pipes under real sky conditions; (2) procedure for simulation in photopia software, considering light pipes. (3) proposition empirical coefficient CD (coefficient of distribution); (4) model for design of daylighting systems with light pipes (MDDL). (AU)