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Performance and economic analysis of air flow windows in a tropical climate
Author(s) -
Wiart L. B.,
Suvachittat S.
Publication year - 1985
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440090407
Subject(s) - glazing , natural convection , airflow , environmental science , heat transfer coefficient , heat transfer , meteorology , flow (mathematics) , dynamic insulation , thermal insulation , materials science , atmospheric sciences , convection , engineering , mechanics , mechanical engineering , geography , physics , composite material , layer (electronics) , vacuum insulated panel
An experimental study was conducted in Thailand to determine the thermal performance of twin glazed windows with dynamic insulation. The effects of blinds situated either between or outside the glazing were analysed. With an external blind, the heat transfer coefficient was 1–25 W/m 2 °C with natural convection and 0–6 W/m 2 °C for a flow of 20m 3 /h (glass area = 2–16m 2 ). The solar flux transmitted was evaluated analytically and experimentally depending on the blind's position. An economic study was performed on a six‐sotrey air‐conditioned building in Thailand. It showed in tropical countries that it may be more economical to use air flow windows than to have tinted single or double glass windows.