File Name: orientation of buildings in relation to sun and wind .zip
Energy is one of the most important catalysts in wealth generation, economic growth, and social development in all countries.
Laustsen, J. Energy efficiency requirements in building codes, energy efficiency policies for new buildings. Buildings US, Construction Initiative. Holmes, M. Climate change, thermal comfort and energy: Meeting the design challenges of the 21st century.
Understanding all the features of a site, using and protecting the best, and minimising the impact of the worst. By contrast, a house on a site that sees little sun, or where living areas cannot face north, will typically require higher amounts of purchased energy, and therefore have a bigger carbon footprint. Assessing the passage of sun across a site is important. There are a number of locally-produced tools that can help, but a site visit is still necessary to identify site-specific conditions such as the impact of a large tree. Sun path diagrams provide a broader overview of sun on a site as they map the path of the sun across the sky at different times during the day throughout the year.
Schoolchildren and most homeowners will tell you that the Sun rises in the east and sets in the west, and, if this were true, building orientation would be a fairly simple matter. In reality, the sun rises and sets in the east and west only on the autumnal and vernal equinoxes, and something very different happens during the remaining days of the year. In the Southern Hemisphere, all of these directions are reversed, so the winter sun rises and sets in the northeast and northwest, respectively, and the summer sun rises and sets in the southeast and southwest, respectively. The relative position of the Sun is a major factor in heat gain in buildings, which makes accurate orientation of the building a fundamental consideration in passive solar construction. For this reason, fewer windows should be located on the northern side of the house, where the summer sun can be intense. A deep roof overhang can shade the few windows in this area, as can different types of shade trees and bushes.
In passive solar building design , windows, walls, and floors are made to collect, store, reflect, and distribute solar energy , in the form of heat in the winter and reject solar heat in the summer. This is called passive solar design because, unlike active solar heating systems, it does not involve the use of mechanical and electrical devices. The key to designing a passive solar building is to best take advantage of the local climate performing an accurate site analysis. Elements to be considered include window placement and size, and glazing type, thermal insulation , thermal mass , and shading. Passive solar technologies use sunlight without active mechanical systems as contrasted to active solar.
A building oriented for solar design takes advantage of passive and active solar strategies. Passive solar strategies use energy from the sun to heat and illuminate buildings without the use of external energy sources and mechanical systems. Building orientation combined with the proper selection of building materials and the placement of windows, openings and shading devices influences heating and cooling loads, natural daylighting levels, and air flows within the building see Daylighting, Glare and Heat Gain Reduction, Natural Ventilation, and Thermal Mass. Passive solar strategies use building components to collect, store, distribute, and control solar heat gains see Table 1. Strategies include implementing large, south-facing windows, sourcing building materials that absorb and slowly release heat, manipulating building form to influence ventilation, and minimizing unwanted heat gain through proper window selection and glazing. Shading devices such as roof overhangs or landscaping also reduce solar load See Tree Protection and Placement.
While a good heating, ventilation , and air conditioning HVAC system and other energy saving features can provide you with a comfortable indoor environment, it is even more important to prevent heat or cold from entering the house in the first place. By designing a house with the right shape and orientation, and strategically locating rooms, you can save on energy costs for cooling and heating. If renting or purchasing , look for these same features in an existing home. Homes that have simple or uncomplicated shapes are typically more efficient to heat and cool than homes with complex or irregular shapes. The exterior structure—also known as the building envelope —includes the walls, roof , windows , doors and cladding. The shape, footprint and envelope of the home can either enhance efficiency or contribute to more energy consumption. Heat is transferred through the envelope at different rates depending upon the efficiency of the building materials.
cool and to define the character and quality of the human relationship to place. Not until the buildings, were architects able to turn their backs on the forces of sun and wind as primary design, the sun and wind define the boundaries of ecological and formal limits. loads. The building siting, orientation, massing, and.
Building orientation describes a building's placement on a site and the positioning of windows, rooflines, and other features. A building oriented for solar design takes advantage of passive and active solar strategies. The main benefit of building orientation is the energy efficiency of your home or building. It saves the heating, lighting and cooling cost of your building. Avail natural light, winds and sun to your building so that you can enjoy the warmth of the sun in winter, and cool breezes during summer.
Introduction 1. Topic: Sun and Architecture 1. Situation: Advantages and disadvantages of sun orientation 1. Problem: How to find a balance in design between advantages and disadvantages of sun orientation? Content 2.
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