A skyscraper is a tall continuously habitable building having multiple floors. Modern sources define skyscrapers as being at least 100 meters (330 ft) or 150 meters (490 ft) in height, though there is no universally accepted definition, other than being very tall high-rise buildings. Historically, the term first referred to buildings at least 10 stories high when these types of buildings began to be constructed in the 1880s. Skyscrapers may host offices, hotels, residential spaces, and retail spaces.
A building or edifice is an enclosed structure with a roof and walls, usually standing permanently in one place, such as a house or factory. Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for numerous factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the concept, see Nonbuilding structure for contrast.
Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. "Refrigeration" is sometimes added to the field's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped, as in HACR.
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.
An evaporative cooler is a device that cools air through the evaporation of water. Evaporative cooling differs from other air conditioning systems, which use vapor-compression or absorption refrigeration cycles. Evaporative cooling exploits the fact that water will absorb a relatively large amount of heat in order to evaporate. The temperature of dry air can be dropped significantly through the phase transition of liquid water to water vapor (evaporation). This can cool air using much less energy than refrigeration. In extremely dry climates, evaporative cooling of air has the added benefit of conditioning the air with more moisture for the comfort of building occupants.
A solar chimney – often referred to as a thermal chimney – is a way of improving the natural ventilation of buildings by using convection of air heated by passive solar energy. A simple description of a solar chimney is that of a vertical shaft utilizing solar energy to enhance the natural stack ventilation through a building.
Cogeneration or combined heat and power (CHP) is the use of a heat engine or power station to generate electricity and useful heat at the same time.
A solar thermal collector collects heat by absorbing sunlight. The term "solar collector" commonly refers to a device for solar hot water heating, but may refer to large power generating installations such as solar parabolic troughs and solar towers or non-water heating devices such as solar cookers or solar air heaters.
Active cooling is a heat-reducing mechanism that is typically implemented in electronic devices and indoor buildings to ensure proper heat transfer and circulation from within.
Micro combined heat and power, micro-CHP, μCHP or mCHP is an extension of the idea of cogeneration to the single/multi family home or small office building in the range of up to 50 kW. Usual technologies for the production of heat and power in one common process are e.g. internal combustion engines, micro gas turbines, stirling engines or fuel cells.
Pearl River Tower (珠江城大厦) is a 71-story, 309.6 m (1,016 ft), clean technology neofuturistic skyscraper at the junction of Jinsui Road/Zhujiang Avenue West, Tianhe, Guangzhou, China. The tower's architecture and engineering were performed by Skidmore, Owings & Merrill with Adrian D. Smith and Gordon Gill as architects. Ground broke on the tower on 8 September 2006 and construction was completed in March 2011. It is intended for office use and is partially occupied by the China National Tobacco Corporation.
Girangaon was a name of an area now part of central Mumbai, India, which at one time had almost 130 textile mills, with the majority being cotton mills. The mills of Girangaon contributed significantly to the prosperity and growth of Mumbai during the later nineteenth century and for the transformation of Mumbai into a major industrial metropolis. Girangaon covered an area of 600 acres (2.4 km2), not including the workers' housing. The mill workers lived in a community, and they fostered a unique culture which shaped Mumbai at the turn of the twentieth century. This textile industry flourished until the early 2000s after which most of the mills were shut down, as the owners deemed them unprofitable and declared they were incapable of paying their workers' wages.
Palais Royale is an under-construction supertall residential skyscraper in Worli, Mumbai, Maharashtra, India. At 320 metres (1,050 ft), it is the tallest topped out building and third tallest structure in India. The building had topped-out in 2018 but the facades and interior of the skyscraper are still under construction. Its completion, previously expected by 30 December 2023, has been delayed due to pending litigation and other external factors, and is now expected by 30 December 2024.
World One is a 280.2 m (919 ft), 76-floor skyscraper in Mumbai, Maharashtra, India. As of 2024, it is the second tallest completed building in India and the third tallest overall. It is on the 7.1-hectare (17.5-acre) site of the defunct Shrinivas Mill. The site also houses two other towers: World View and World Crest. The complex was developed by the Lodha Group.
Namaste Tower is a 310 m (1,017 ft) tall skyscraper mega project in Mumbai, India. It would have been a mixed-use skyscraper with 63 floors that will house a 380-room W Hotel, office and retail space. It was designed by Atkins, Dubai. The design resembles the Namaste gesture: two wings of the hotel are clasped together like hands greeting.
Variable refrigerant flow (VRF), also known as variable refrigerant volume (VRV), is an HVAC technology invented by Daikin Industries, Ltd. in 1982. Similar to ductless mini-split systems, VRFs use refrigerant as the primary cooling and heating medium, and are usually less complex than conventional chiller-based systems. This refrigerant is conditioned by one or more condensing units, and is circulated within the building to multiple indoor units. VRF systems, unlike conventional chiller-based systems, allow for varying degrees of cooling in more specific areas, may supply hot water in a heat recovery configuration without affecting efficiency, and switch to heating mode during winter without additional equipment, all of which may allow for reduced energy consumption. Also, air handlers and large ducts are not used which can reduce the height above a dropped ceiling as well as structural impact as VRF uses smaller penetrations for refrigerant pipes instead of ducts.
High Street Phoenix, formerly known as Phoenix Mall, is one of the largest shopping malls in India, situated in Lower Parel, Mumbai. Its gross floor area is 3,300,000 square feet (310,000 m2). In addition to the mall, the compound hosts a five-star hotel, a multiplex, commercial space and a residential tower.
Lodha Park is an 18.5-acre (7.5 ha) luxury residential skyscraper project which was developed by the Lodha Group in the upscale Lower Parel neighborhood of Mumbai, Maharastra, India. The land for the project was purchased from DLF Limited in 2012 for approximately ₹2,800 crore. Lodha Park consists of 5 towers, each standing 268 meters tall and with 76 floors. Lodha Park Towers were the tallest buildings in India from 2019 to 2020, until surpassed by World One in 2020, which in turn was surpassed by Lokhandwala Minerva in 2023. The towers are currently the 6th tallest buildings in India.
The architecture of the United Arab Emirates has undergone dramatic transformation in recent decades, from operating as a collection of fishing villages to a global business hub known for its innovation and dynamism. Between the 1960s and 1970s, architecture in the United Arab Emirates (UAE) remained solely traditional, with narrow alleys and windtower houses still in use, reflective of a strong Bedouin heritage. Architecture is influenced by elements of Islamic, Arabian and Persian culture.
