|
Windcatcher
A windcatcher, wind tower, or wind scoop () is a traditional architectural element used to create cross ventilation and passive cooling in buildings. Windcatchers come in various designs, depending on whether local prevailing winds are unidirectional, bidirectional, or multidirectional, on how they change with altitude, on the daily temperature cycle, on humidity, and on how much dust needs to be removed. Despite the name, windcatchers can also function without wind. Neglected by modern architects in the latter half of the 20th century, the early 21st century saw them used again to increase ventilation and cut power demand for air-conditioning. Generally, the cost of construction for a windcatcher-ventilated building is less than that of a similar building with conventional heating, ventilation, and air conditioning (HVAC) systems. The maintenance costs are also lower. Unlike powered air-conditioning and fans, windcatchers are silent and continue to function when the electr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ventilation (architecture)
Ventilation is the intentional introduction of outdoor air into a space. Ventilation is mainly used to control indoor air quality by diluting and displacing indoor effluents and pollutants. It can also be used to control indoor temperature, humidity, and air motion to benefit thermal comfort, satisfaction with other aspects of the indoor environment, or other objectives. The intentional introduction of outdoor air is usually categorized as either mechanical ventilation, natural ventilation, or mixed-mode ventilation. * Mechanical ventilation is the intentional fan-driven flow of outdoor air into and/or out from a building. Mechanical ventilation systems may include supply fans (which push outdoor air into a building), Exhaust ventilation systems, exhaust fans (which draw air out of a building and thereby cause equal ventilation flow into a building), or a combination of both (called balanced ventilation if it neither pressurizes nor depressurizes the inside air, or only slightly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cross Ventilation
Cross ventilation is a natural phenomenon where wind enters an opening, such as a window, flows directly through the space, and exits through an opening on the opposite side of the building (where the air pressure is lower). This produces a cool stream of air and a current across the room from the exposed area to the sheltered area.Wind ventilation and cross ventilation Connection Magazines Cross ventilation is powered by the wind and thus requires no energy input, in addition to being the most effective method of wind ventilation. A commonly used technique to remove [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passive Ventilation
Passive ventilation is the process of supplying air to and removing air from an indoor space without using mechanical systems. It refers to the flow of external air to an indoor space as a result of pressure differences arising from natural forces. There are two types of natural ventilation occurring in buildings: '' wind driven ventilation'' and ''buoyancy-driven ventilation''. Wind driven ventilation arises from the different pressures created by wind around a building or structure, and openings being formed on the perimeter which then permit flow through the building. Buoyancy-driven ventilation occurs as a result of the directional buoyancy force that results from temperature differences between the interior and exterior. Since the internal heat gains which create temperature differences between the interior and exterior are created by natural processes, including the heat from people, and wind effects are variable, naturally ventilated buildings are sometimes called "brea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passive Cooling
Passive cooling is a building design approach that focuses on heat gain control and heat dissipation in a building in order to improve the indoor thermal comfort with low or no energy consumption. This approach works either by preventing heat from entering the interior (heat gain prevention) or by removing heat from the building (natural cooling). Natural cooling utilizes on-site energy, available from the natural environment, combined with the architectural design of building components (e.g. building envelope), rather than mechanical systems to dissipate heat. Therefore, natural cooling depends not only on the architectural design of the building but on how the site's natural resources are used as heat sinks (i.e. everything that absorbs or dissipates heat). Examples of on-site heat sinks are the upper atmosphere (night sky), the outdoor air (wind), and the earth/soil. Passive cooling is an important tool for design of buildings for climate change adaptationreducing dependency ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air-conditioning
Air conditioning, often abbreviated as A/C (US) or air con (UK), is the process of removing heat from an enclosed space to achieve a more comfortable interior temperature, and in some cases, also controlling the humidity of internal air. Air conditioning can be achieved using a mechanical 'air conditioner' or through other methods, such as passive cooling and ventilative cooling. Air conditioning is a member of a family of systems and techniques that provide Heating, ventilation, and air conditioning, heating, ventilation, and air conditioning (HVAC). Heat pumps are similar in many ways to air conditioners but use a reversing valve, allowing them to both heat and cool an enclosed space. Air conditioners, which typically use vapor-compression refrigeration, range in size from small units used in vehicles or single rooms to massive units that can cool large buildings. Air source heat pumps, which can be used for heating as well as cooling, are becoming increasingly common in cool ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Takhtabush
In Roman architecture, a (or , from , board, picture) was a room in a ''domus'' (house) generally situated on one side of the cavaedium, atrium and opposite to the entrance; it opened in the rear onto the peristyle, with either a large window or only an anteroom or curtain. The walls may be richly decorated with fresco pictures, and often busts of the family were arranged on pedestals on the two sides of the room. Description The ''tablinum'' was the office in a Roman house, the owner's centre for business, where he would receive his clients. According to one hypothesis, it was originally the master bedroom. ''Takhtabush'' is the Arabic language, Arabic term for a tablinum. Like the ancient Roman tablinum, it opens onto a heavily shaded courtyard and, on the other side, a rear garden. Unlike the Roman tablinum, the garden side is closed with a lattice (Roman tablinums may have had open-weave curtains). If there is a wind, it tends to blow down into the windward court an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dubai Museum
Dubai Museum () is the main museum in Dubai, United Arab Emirates. It is located in the Al Fahidi Fort (), built in 1787 and is the oldest existing building in Dubai. The museum was opened by the Ruler of Dubai in 1971, with the aim of presenting the traditional way of life in the Emirate of Dubai. When entering, one can see the fort constructed and the various displays that go along with it. From the fort, there is a path to the galleries, which display the general culture of the land, especially in the 1800s. It includes local antiques as well as artifacts from African and Asian countries that traded with Dubai. It also includes several dioramas showing life in the emirate before the advent of oil, in addition to artifacts from recent discoveries as old as 3000 BC. The museum has displayed from pearl diving boats to swords and jewellery and a lovely close-to-life spice souk, which filled with real smells and actual spices. Besides the displays, the museum also includes holo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prevailing Wind
In meteorology, prevailing wind in a region of the Earth's surface is a surface wind that blows predominantly from a particular direction. The dominant winds are the trends in direction of wind with the highest speed over a particular point on the Earth's surface at any given time. A region's prevailing and dominant winds are the result of global patterns of movement in the Earth's atmosphere. In general, winds are predominantly easterly at low latitudes globally. In the mid-latitudes, westerly winds are dominant, and their strength is largely determined by the polar cyclone. In areas where winds tend to be light, the sea breeze-land breeze cycle (powered by differential solar heating and night cooling of sea and land) is the most important cause of the prevailing wind. In areas which have variable terrain, mountain and valley breezes dominate the wind pattern. Highly elevated surfaces can induce a thermal low, which then augments the environmental wind flow. Wind direction a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
