Effect of Early Solar Energy Gain according to Building Size, Building Openings, Aspect Ratio, Solar Azimuth, and Latitude

Abstract

This study determines the effects of building openings, size, proportions, orientation, and latitude with regard to the needed energy to keep interior spaces within the comfort zone. For this analysis, the average temperatures throughout the year and average daily temperature swings at five different locations are applied, indicating the effect of exposure to morning direct radiation, which is considered early solar energy, versus noon and afternoon, and the potential energy gain from optimized orientation of buildings. Data such as temperature values are assigned to the anticipated average based on collected data. Depending on latitude and local climate, it is evident that minor angle shifts in building orientation may produce noticeable results in terms of energy gain or block at different times of the day. Adjustments on proportions and azimuth contribute toward a rate of solar energy gain that corresponds better to the building needs for thermal energy at different times of the day.