Passive and Active Solar Systems for Buildings
15 June 2009 | Green Technology | 1 Comment
The adaptation of urban buildings to the specific environmental conditions of cities in order to incorporate efficiently solar and energy-saving measures and couterbalance the radical changes and transformations of the radiative, thermal, moisture and aerodynamin characteristics of the urban environment is a major priority.This incorporates appropriate sizing and placing of the building openings, to promote solar energy utilization, enchance air flow and natural ventilation and improve daylight aviability, integration of photovoltaics and also the use of passive cooling tedhniques to decrease cooling energy consumption and improve thermal comfort.
Passive solar heating, cooling and lighting techniques have reached a high degree of technical maturity.Large-scale applications, especially in new settlements, have shown that very high energy gains can be achived while the thermal and visual comfort and indoor air quality are very satisfactory.Further penetration and use of solar technologies are associated with their adaptation to the new conditions almost imposted by the specific social, economic and technical trends dominating the overall sector of the built environment.
New desing methodologies and tools and more advanced materials and components permit the building community to design and construct more efficient urban buildings.Designers may now select more advanced windows and better insulation materials, solar cells and collectors, heat pumps, daylighting, integrated lighting and shading control systems, free nocturnal air cooling, pre-heaters such as air heat recovery and air-to-ground heat exchangers for preheating in winter and cooling in summer.
Tags: best solar systems, efficient urban buildings, Environment, high energy gains, passive cooling tedhniques, Passive solar heating, photovoltaics, solar and energy-saving measures, solar cells and collectors, solar cooling, solar energy utilization, solar heating systems, specific environmental conditions, urban environment, use of solar technologies
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