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An evaporative cooler (also known as evaporative air conditioner, swamp cooler, swamp box, desert cooler and wet air 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.
A ton of refrigeration (TR or TOR), also called a refrigeration ton (RT), is a unit of power used in some countries (especially in North America) to describe the heat
The COP of absorption chillers can be improved by adding a second or third stage. Double and triple effect chillers are significantly more efficient than single effect chillers, and can surpass a COP of 1. They require higher pressure and higher temperature steam, but this is still a relatively small 10 pounds of steam per hour per ton of cooling.
Alpha Black Edition - Sirair Air conditioner with UVC (Ultraviolet Germicidal Irradiation) Ventilation is measured in terms of Air Changes Per Hour (ACH). As of 2023, the CDC recommends that all spaces have a minimum of 5 ACH. [26] For hospital rooms with airborne contagions the CDC recommends a minimum of 12 ACH. [27]
Innovations in the latter half of the 20th century allowed more ubiquitous air conditioner use. In 1945, Robert Sherman of Lynn, Massachusetts, invented a portable, in-window air conditioner that cooled, heated, humidified, dehumidified, and filtered the air. [37] The first inverter air conditioners were released in 1980–1981. [38] [39]
It is the last supported edition of Windows based on Windows 7 to receive official support from Microsoft. Mainstream support for Windows Embedded POSReady 7 ended on October 11, 2016 () [4] and extended support ended on October 12, 2021 (). [24] That date marked the final end of extended support for the Windows 7 codebase after more than 12 years.
Windows 7 — Windows 7: The number 7 comes from incrementing the internal version number of Windows Vista (6.0) by one. Often incorrectly referred to as Blackcomb or Vienna, while the codenames actually refer to an earlier Vista successor project that was cancelled due to scope creep. [43] [50] [51] Windows Server 7 — Windows Server 2008 R2 ...
2.0a (OSR2/2.1) 5.0 (OSR2.5) 8.0a (optional) Windows 98: MS-DOS 7.1 Monolithic kernel x86, hybrid 16/32-bit No No Yes Yes Yes Windows Update: Win16, Win32 DOS, DLL, VxD, WDM (partial), direct-access Yes 5.2 9.0c (Oct 2006) (optional) Windows 98 Second Edition: MS-DOS 7.1 Monolithic kernel x86, hybrid 16/32-bit No No Yes Yes Yes Windows Update ...
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