Stay Cool: A Design Guide for the Built Environment in Hot Climates
In hot dry or warm humid climates, more than half of the urban peak load of energy consumption is used to satisfy air-conditioning demands alone. Since the urbanization rate in developing countries is extreme, the pressure placed on energy resources to satisfy the future requirements of the built environment will be great, unless new, more cost-effective measures can be introduced. Stay Cool is an essential guide for planning and design using active design principles and passive means to satisfy human comfort requirements specifically in these climate zones, based on examples of traditional and modern constructions. The book demonstrates how a design strategy for urban environments and individual buildings, incorporating naturally occurring resources and specific energy-efficient technologies, can create a location, form and structure that promote significant energy-savings. Such strategies can be applied to low cost housing, or indeed to any other buildings, in order to improve comfort with passive means and low energy budgets. Following an outline of climatic issues, characteristics and thermal comfort requirements, the book details the available techniques and technologies that can be used to shape both built and external environments, the building envelope, material selections and natural ventilation and cooling methods to satisfy both human requirements and the need for energy efficiency. It also includes an active design checklist and summary of available design checking tools, a rehabilitation guide for existing urban, building and external environments, and solar charts. Planners, architects, engineers, technicians and building designers will find Stay Cool an inspirational guide and an essential reference when working with planning and design of the built environment in hot dry and warm humid climate zones. It will also be of benefit to students, academics and researchers with an interest in sustainable and energy-efficient architecture techniques and practice.
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21 December Solar 21 September 21 absorb active design air flow air movement air temperature altitude Solar azimuth Architects areas Arup azimuth Solar altitude Botswana building elements building envelope building's built environment cavity climatic zones construction cool air cooler courtyard create cross-ventilation Design principles energy evaporative cooling example external floor glare ground hot dry climates hot dry zones incoming air internal spaces June 21 December levels light lightweight materials maximise minimise natural ventilation night orientation outdoor spaces passive measures protection reduce heat gains reflect relative humidity September 21 June shading devices Solar altitude Solar Solar azimuth 06:00 Solar azimuth Solar solar chimney solar radiation Solar time Solar South 21 March stack effect structure surface thermal comfort thermal insulation thermal mass thermal storage capacity U-value urban ventilation and cooling ventilation openings venturi effect walls warm humid climates warm humid regions Warm humid zones wind speeds wind tower