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The Influence of Shelter Orientation on Indoor Thermal Conditions

Abstract

Shelter orientation is an important architectural consideration that can influence the amount of solar radiation, wind exposure, and heat received by temporary and emergency accommodation. In many warm climates, poorly oriented shelters may experience excessive heat gain and inadequate natural ventilation, resulting in uncomfortable indoor conditions. Appropriate orientation can therefore serve as a passive design strategy for improving thermal performance while reducing reliance on mechanical cooling systems. This study examines the influence of shelter orientation on indoor thermal conditions, focusing on the relationship between building positioning and environmental performance. The assessment considers the orientation of shelter openings, primary façades, roof surfaces, and internal spaces relative to solar movement and prevailing wind directions. It evaluates how different orientations influence indoor temperature, solar exposure, air movement, and overall thermal comfort. Particular attention is given to solar heat gain through walls, roofs, windows, and other exposed building surfaces. The orientation of a shelter can determine the duration and intensity of direct solar exposure received by different façades throughout the day. Appropriate positioning, combined with shading devices and suitable opening arrangements, can reduce excessive heat gain while allowing useful daylight to enter interior spaces. The study further examines the relationship between shelter orientation and natural ventilation. Aligning openings with prevailing wind directions can encourage cross-ventilation and improve the movement of air through occupied spaces. The effectiveness of this approach may also depend on shelter spacing, opening size, surrounding structures, vegetation, and local wind conditions. Proper orientation can therefore support passive cooling and improve indoor air movement. Other design factors, including roof configuration, building materials, insulation, shading, shelter density, and surrounding landscape, are considered in relation to orientation. Orientation alone may not guarantee thermal comfort, particularly under extreme climatic conditions, but its integration with other passive strategies can improve overall shelter performance. These considerations are especially relevant where emergency shelters have limited access to mechanical cooling and energy infrastructure. The study concludes that shelter orientation can significantly influence indoor thermal conditions by affecting solar exposure and natural ventilation. Appropriate orientation, combined with shading, suitable openings, climate-responsive materials, and effective site planning, can contribute to more comfortable and energy-efficient shelter environments. The findings are expected to provide useful guidance for architects, emergency planners, humanitarian organizations, and shelter developers in designing temporary and emergency accommodation that responds effectively to local climatic conditions.

Keywords: Shelter orientation, Indoor thermal conditions, Thermal comfort, Emergency shelters, Passive cooling, Solar radiation, Natural ventilation, Climate-responsive design, Solar heat gain, Building orientation, Shelter design, Environmental performance, Temporary accommodation, Emergency architecture.