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Yakhchāl Of Kashmar2021
A yakhchāl ( 'ice pit'; ''yakh'' meaning 'ice' and ''chāl'' meaning 'pit') is an ancient type of ice house, which also made ice. They are primarily found in the Dasht-e Lut and Dasht-e-Kavir deserts, whose climates range from cold (BWk) to hot (BWh) desert regions. In present-day Iran, Afghanistan, and Tajikistan, the term ''yakhchāl'' is also used to refer to modern refrigerators. The structure typically had a domed shape above ground, a subterranean storage space, shade walls, and ice pools. It was often used to store ice, but sometimes was used to store food as well as produce ice. The subterranean space and thick heat-resistant construction material insulated the storage space year-round. These structures were mainly built and used since ancient times in Persia. History Records indicate that these structures were built as far back as 400 BCE, and many that were built hundreds of years ago remain standing, where Persian engineers built yakhchāls in the desert to store i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humidity
Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water, is generally invisible to the human eye. Humidity indicates the likelihood for precipitation (meteorology), precipitation, dew, or fog to be present. Humidity depends on the temperature and pressure of the system of interest. The same amount of water vapor results in higher relative humidity in cool air than warm air. A related parameter is the dew point. The amount of water vapor needed to achieve saturation increases as the temperature increases. As the temperature of a parcel of air decreases it will eventually reach the saturation point without adding or losing water mass. The amount of water vapor contained within a parcel of air can vary significantly. For example, a parcel of air near saturation may contain 8 g of water per cubic metre of air at , and 28 g of water per cubic metre of air at Three primary measurements of humidity are widely employed: abso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cooling Technology
Cooling is removal of heat, usually resulting in a lower temperature and/or phase change. Temperature lowering achieved by any other means may also be called cooling. The transfer of thermal energy may occur via thermal radiation, heat conduction or convection. Examples can be as simple as reducing temperature of a coffee. Devices *Coolant *Cooling towers, as used in large industrial plants and power stations *Daytime passive radiative cooler *Evaporative cooler *Heat exchanger *Heat pipe *Heat sink *HVAC (Heating, Ventilation and Air Conditioning) *Intercooler *Radiative cooling in Heat shields *Radiators in automobiles *Pumpable ice technology *Thermoelectric cooling *Vortex tube, as used in industrial spot cooling See also * Computer cooling * Refridgeration Refrigeration is any of various types of cooling of a space, substance, or system to lower and/or maintain its temperature below the ambient one (while the removed heat is ejected to a place of higher temperature) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reflecting Pool
A reflecting pool, also called a reflection pool, is a water feature found in gardens, parks and memorial sites. It usually consists of a shallow pool of water with a reflective surface, undisturbed by fountain jets. Design Reflecting pools are often designed with the outer basin floor at the rim slightly deeper than the central area to suppress wave formation. They can be as small as a bird bath to as large as a major civic element. Their origins are from ancient Persian gardens. List of notable pools * The Miroir d'eau (Water mirror) on Place de la Bourse in Bordeaux, France. * The Mughal gardens, Mughal garden reflecting pools at the Taj Mahal in Agra, India * Chehel Sotoun in Iran * The Lincoln Memorial Reflecting Pool and Capitol Reflecting Pool, in Washington, D.C. * Mary Gibbs and Jesse H. Jones Reflection Pool, Hermann Park, Houston, Texas, U.S. * The modernist Palácio do Planalto and Palácio da Alvorada in Brasília, Brazil * Martin Luther King Jr. National Historical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerman Province
Kerman province () is the largest of the 31 provinces of Iran. Its capital is the city of Kerman. The province is in the southeast of Iran. In 2014 it was placed in Region 5. Mentioned in ancient times as the Achaemenid satrapy of Carmania, Kerman province has an area of , encompassing nearly 11% of the land area of Iran.http://www.sci.org.ir/content/userfiles/_sci_en/sci_en/sel/year85/f1/CS_01_4.HTM History According to a text from the 8th century commontly attributed to the Armenian historian Movses Khorenatsi, present-day Kerman province was situated in the southern quarter of the Sasanian Empire. The main city of the region from the Sasanian era to the 10th century was Sirjan. Early Muslim geographers considered the area as part of the hot climatic zone and the mountainous interior as home of predatory people including the Kufečs (or Kofejān). Hamdallah Mustawfi stated that predatory beasts roamed the area which by then had undergone forestation. In the 13th c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sirjan
Sirjan (; ) is a city in the Central District of Sirjan County, Kerman province, in the south of Iran, serving as capital of both the county and the district. The city is from the Iranian capital of Tehran, and from the provincial capital of Kerman. It is known for its pistachios, Kilim and its wind towers, locally known as Bādgir-e Chopoqi (calumet louver). Climate Demographics Population At the time of the 2006 National Census, the city's population was 167,014 in 40,605 households. The following census in 2011 counted 185,623 people in 51,088 households. The 2016 census measured the population of the city as 199,704 people in 58,756 households. Universities and higher education centers Payam Noor University Sirjan University of Technology, Sirjan Sirjan University of Technology is a non-profit public higher education institution that was established in 1992. This university, which was established by the Ministry of Science, Research and Technology of Iran, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yakhchāl Of Kowsar
The Yakhchāls of Kowsar is a historical Yakhchāl belongs to the Qajar dynasty and is located in Bidokht, Razavi Khorasan Province in Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort .... The yakhchа̄l is located at 34°22'7.01"N, 58°48'3.02"E. References {{coord missing, Iran Buildings and structures in Razavi Khorasan province ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bâdgir
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 windcatcher#Convection, 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 (architecture), 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aqueduct (water Supply)
An aqueduct is a watercourse constructed to carry water from a source to a distribution point far away. In modern engineering, the term ''aqueduct'' is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose. The term ''aqueduct'' also often refers specifically to aqueduct (bridge), a bridge carrying an artificial watercourse. Aqueducts were used in ancient Greece, the ancient Near East, Roman aqueduct, ancient Rome, Chapultepec aqueduct, ancient Aztec, and Inca aqueducts, ancient Inca. The simplest aqueducts are small ditches cut into the earth. Much larger channels may be used in modern aqueducts. Aqueducts sometimes run for some or all of their path through tunnels constructed underground. Modern aqueducts may also use pipelines. Historically, agricultural societies have constructed aqueducts to irrigate crops and supply large cities with drinking water. Etymology The word ''aqueduct'' is derived from the Latin words (''water'') a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qanat
A qanāt () or kārīz () is a water supply system that was developed in ancient Iran for the purpose of transporting usable water to the surface from an aquifer or a well through an underground aqueduct. Originating approximately 3,000 years ago, its function is essentially the same across the Middle East and North Africa, but it is known by a variety of regional names beyond today's Iran, including: kārēz in Afghanistan and Pakistan; foggāra in Algeria; khettāra in Morocco; falaj in Oman and the United Arab Emirates; and ʿuyūn in Saudi Arabia. In addition to those in Iran, the largest extant and functional qanats are located in Afghanistan, Algeria, China (i.e., the Turpan water system), Oman, and Pakistan. Proving crucial to water supply in areas with hot and dry climates, a qanat enables water to be transported over long distances by largely eliminating the risk of much of it evaporating on the journey. The system also has the advantage of being fairly resistant to n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lime (material)
Lime is an Inorganic compound, inorganic material composed primarily of calcium oxides and hydroxides. It is also the name for calcium oxide which is used as an industrial mineral and is made by heating calcium carbonate in a kiln. Calcium oxide can occur as a product of coal-seam fires and in altered limestone xenoliths in volcanic ejecta. The International Mineralogical Association recognizes lime as a mineral with the chemical formula of CaO. The word ''lime'' originates with its earliest use as building mortar and has the sense of ''sticking or adhering''. These materials are still used in large quantities in the manufacture of steel and as building and engineering materials (including limestone products, cement, concrete, and mortar (masonry), mortar), as chemical feedstocks, for sugar refining, and other uses. Lime industries and the use of many of the resulting products date from prehistoric times in both the Old World and the New World. Lime is used extensively for was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarooj
Sarooj is a traditional water-resistant mortar used in Iranian architecture, used in the construction of bridges and yakhchāl, ancient Persian ice houses.The Earth Refrigerators as Earth Architecture at IJESD.org It is made of and mixed in a six-to-four ratio to make a stiff mix, and kneaded for three days. A portion of furnace slags from baths is combined with cattail ('' |
