A study of the skylight coverage ratio for air-conditioned atriumsin the hot and humid regions

Abstract The skylight on the roof of an atrium can be popular for commercial malls to illuminate core area building. However, solar radiation and its heat get into building together with daylight, causing excessive cooling load. This paper studies daylighting energy performances coverage air-conditioned atriums in hot humid regions. performance different heights, glass types ratios are studied. daylight was simulated by ray-tracing Radiance transferred EnergyPlus evaluations. finding suggested that, climates, ratio should controlled carefully prevent gain. When on/off lighting control is applied, total consumption single-floor cases (or top floor multi-floor cases) leveled off when reached 9%. Thus, favorable saving low-rise or buildings only under current assumptions, as ground cannot well illuminated while gets shaded seasons gains.